Viscous material dispenser

Abstract

To provide a dispenser that enables contactless dispensing of thoroughly mixed viscous two-component materials from a pouch-like disposable container with a flexible sleeve.SOLUTION: A dispenser 1 includes: a static mixer 14; first and second receptacles R1, R2 for first and second viscous materials, connected in fluid communication with the static mixer; first and second actuators 4, 5 configured for discharge of receptacles R1, R2; an electrically or manually operable drive 2; and a mechanical or hydraulic power transmission 3 configured to translate drive motion into first and second actuator motion.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a dispenser comprising a static mixer, first and second receptacles R1, R2 for first and second viscous materials, each receptacle R1, R2 being connected in fluid communication with the static mixer, first and second actuators movable in and out of the receptacles R1, R2, respectively, an electrically or manually operable drive, and at least one mechanical or hydraulic power transmission device configured to convert drive operation into first and second actuator operation. [Background technology]

[0002] Dispensing devices for multi-component viscous materials are known in the art.

[0003] U.S. Patent No. 5,390,825 discloses a self-contained device for dispensing a two-component adhesive, the device comprising a cart and first and second cartridge holders on the cart, each holder having an adhesive dispensing outlet and a seal-piercing die at its lower end and an opening at its upper end for receiving a prefilled adhesive cartridge with a sealed discharge end. A plunger assembly having first and second plungers is attached to the cartridge receiving opening in the cartridge holder. The plungers are operably connected to a hydraulic cylinder so that the plungers and the hydraulic cylinder move together. The plunger assembly is rotatable from a locked position to an unlocked position to enable loading and unloading of prefilled cartridges. Each plunger has an expandable plunger cup that engages with the adhesive component in the associated cartridge as the plunger moves downward within the cartridge, thereby forcing the adhesive and seal against the die, breaking the seal, and discharging the adhesive component through the dispensing outlet. The hydraulic cylinder is operably connected to a hydraulic pump powered by a self-contained power source.

[0004] WO 1992 / 22494 describes a portable device for dispensing adhesive from a cartridge-type container using an axially oriented plunger driven by a manually operated hydraulic pump that supplies pressurized fluid to a hydraulic cylinder, the output of which is coupled to a pair of plungers that engage the cartridge and force the adhesive material out of a mixing nozzle.

[0005] U.S. Patent No. 6,019,251 relates to an extrusion device including an actuator plate pivotally hinged to a base plate. Two tubes containing two-component reactive curing materials are interposed between the base and the actuator plate. When a grip located on the bottom surface of the base plate is held and a lever located in front of the grip is pulled, the actuator plate is rotated downward, clamping both tubes and simultaneously extruding both materials. The extrusion device includes a coater nozzle B connected to both tubes, through which both materials are discharged together. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] U.S. Patent No. 5,390,825 [Patent Document 2] International Application Publication No. 1992 / 22494 Pamphlet [Patent Document 3] U.S. Patent No. 6,019,251 Summary of the Invention [Problem to be solved by the invention]

[0007] The dispenser of the present invention is adapted for use with disposable containers containing predetermined amounts of two viscous materials, such as two-component RTV silicone, which must be thoroughly mixed at the point of use prior to application onto a substrate or deposition into a mold.

[0008] The disposable container to be used with the dispenser of the present invention essentially consists of a compartmentalized pouch with a flexible sleeve made of a polymer film and two viscous materials contained within the sleeve. Preferably, each viscous material is enclosed in a secondary inner casing that prevents migration and chemical reaction between volatile components within the disposable container. Preferably, the secondary inner casing is made of a polymer film with barrier properties. The sleeve of the disposable container encapsulates the viscous materials and protects the dispenser from contact with the viscous materials during dispensing operations. If the container sleeve is ruptured, parts of the dispenser may become wet with the viscous material, which upon hardening strongly adheres to the dispenser and becomes difficult to remove or renders the dispenser unusable for further dispensing operations. Within the framework of the present invention, dispensing operations that do not involve contact between the dispensed materials and the dispenser are referred to as "contactless dispensing."

[0009] SUMMARY OF THE INVENTION The present invention aims to provide a dispenser that allows for contactless dispensing of a thoroughly mixed, viscous, two-component material from a pouch-like disposable container with a flexible sleeve. [Means for solving the problem]

[0010] The purpose of this is to a static mixer; - first and second receptacles R1, R2 for the first and second viscous materials, each receptacle R1, R2 being connected in fluid communication with a static mixer; first and second actuators configured for the ejection of each of the receptacles R1, R2; a drive that can be operated electrically or manually; at least one mechanical or hydraulic power transmission device configured to convert drive motion into first and second actuator motions; This is achieved by a dispenser comprising:

[0011] Advantageous embodiments of the dispenser of the invention are characterized in the following respects. - the dispenser is configured to be able to discharge the first and second receptacles R1, R2 at a relative volume ratio, i.e. at a ratio of discharge volumes per unit time of 1:1 to 12:1; - the dispenser is configured to be able to discharge the first and second receptacles R1, R2 at a relative volumetric flow ratio of 1:1 to 5:1, 3:1 to 7:1, 5:1 to 9:1, or 9:1 to 12:1; - the dispenser is configured to be able to discharge the first and second receptacles R1, R2 at a relative volumetric flow ratio of 1.0:1.0 to 1.1:1.0; - the dispenser comprises a frame and a lid; - the frame and the lid are mechanically connected via a hinge; the dispenser comprises a lock for attaching the lid to the frame in a form-fitting manner; - the dispenser comprises a lock for attaching the lid to the frame in a press-fit manner; - the dispenser is configured to accommodate a disposable container comprising a sleeve, reservoirs for the two viscous materials and a mixing tube; - the dispenser is configured to receive a disposable container comprising a sleeve, reservoirs for two viscous materials, a mixing tube, and a carrier sheet with one opening to be placed in the mixing tube; - the dispenser is configured to accommodate a disposable container comprising a sleeve, reservoirs for two viscous materials, a mixing tube and a carrier sheet with m (8≦m≦120) openings, which is placed in the mixing tube; the dispenser is configured to receive a disposable container comprising a sleeve, reservoirs for two viscous materials, a mixing tube, and a carrier sheet with m openings arranged in the mixing tube, wherein 8≦m≦24, 16≦m≦32, 24≦m≦40, 32≦m≦48, 40≦m≦56, 48≦m≦64, 56≦m≦72, 64≦m≦80, 72≦m≦88, 80≦m≦96, 88≦m≦104, 96≦m≦112, or 104≦m≦120; - the dispenser is configured to receive a disposable container comprising a sleeve, reservoirs for two viscous materials and a mixing tube comprising a shield with m (8≦m≦120) openings; the dispenser is configured to receive a disposable container comprising a mixing tube including a sleeve, reservoirs for two viscous materials and a shield with m openings, wherein 8≦m≦24, 16≦m≦32, 24≦m≦40, 32≦m≦48, 40≦m≦56, 48≦m≦64, 56≦m≦72, 64≦m≦80, 72≦m≦88, 80≦m≦96, 88≦m≦104, 96≦m≦112 or 104≦m≦120; the dispenser comprises a frame, a lid, and a gasket configured to be interposed between the frame and the lid; - the gasket is formed from a sheet of elastic material; the gasket is formed from a sheet of elastic material selected from the group consisting of natural rubber, synthetic rubber, polymers and mixtures thereof; - the gasket is formed from a composite sheet material including fabrics or filaments formed from polymeric or metallic materials; -The gasket is attached to the frame; -The gasket is attached to the lid; - the gasket has a cutout for the static mixer; - the gasket has a cutout for the mixing section of the static mixer; the gasket comprises a cutout for each of the first and second receptacles R1, R2; - the gasket has three or more notches; the gasket comprises first and second diaphragms for evacuating the first and second receptacles R1, R2 respectively; the gasket comprises first and second diaphragms each forming an integral part of the gasket; the first and second actuators each comprise a first and second diaphragm, respectively, forming an integral part of the gasket; - the static mixer has n (8≦n≦120) deflectors; the static mixer comprises n deflectors, and 8≦n≦24, 16≦n≦32, 24≦n≦40, 32≦n≦48, 40≦n≦56, 48≦n≦64, 56≦n≦72, 64≦n≦80, 72≦n≦88, 80≦n≦96, 88≦n≦104, 96≦n≦112, or 104≦n≦120; - each deflector has rounded or chamfered edges; - the static mixer is configured to receive a mixing tube and a portion of a carrier sheet of a disposable container, the carrier sheet having one opening and a thickness of 0.3 to 3.0 mm, 0.3 to 2.0 mm, 0.3 to 1.0 mm, or 0.3 to 0.8 mm; - the static mixer is configured to accommodate a mixing tube and a portion of a carrier sheet of a disposable container, the carrier sheet having m openings and a thickness of 0.3 to 3.0 mm, 0.3 to 2.0 mm, 0.3 to 1.0 mm, or 0.3 to 0.8 mm; The static mixer is configured to accommodate a mixing tube and a shield of a disposable container, the shield having m openings and a thickness of 0.3 to 3.0 mm, 0.3 to 2.0 mm, 0.3 to 1.0 mm, or 0.3 to 0.8 mm; the static mixer comprises an inlet, a mixing section, and an outlet, the mixing section being disposed between the inlet and the outlet; the static mixer comprises an inlet section, a mixing section, and an outlet section, the mixing section being disposed between the inlet section and the outlet section; - the static mixer comprises a mixing section configured as a straight duct or channel having a contoured inner surface with protrusions; - the static mixer comprises a mixing section configured as a straight duct or channel having a contoured inner surface with a deflector; - the static mixer comprises a mixing section configured as a curved duct or channel having a contoured inner surface with protrusions; - the static mixer comprises a mixing section configured as a curved duct or channel having a contoured inner surface with a deflector; - the static mixer has a mixing section having an inner surface with a shape corresponding to the combination of a side surface of a cylinder with an elliptical cross section and the surfaces of n (8≦n≦120) deflectors arranged along the main axis of the cylinder, the major axis of the elliptical cross section being 1.2 to 4.0 times larger than the minor axis of the elliptical cross section; - the static mixer comprises a mixing section bounding a flow path consisting of four serpentine-shaped interconnected ducts; - the static mixer comprises a mixing section bounding a flow path consisting of four serpentine-shaped interconnected and partially overlapping ducts; - the static mixer is disposed between the first and second receptacles R1, R2; - the static mixer forms an integral part of the dispenser; the static mixer comprises first and second dies configured for reversible insertion into the dispenser; the dispenser comprises first and second sockets for reversibly inserting the first and second static mixer dies, respectively; the dispenser comprises first and second sockets for inserting the first and second static mixer dies, respectively, in a reversible press-fit manner; - the frame comprises a socket for reversibly inserting the first static mixer die; the frame comprises a socket for inserting the first static mixer die in a reversible, form-fitting manner; the lid comprises a socket for reversibly inserting a second static mixer die; the lid comprises a socket for inserting the second static mixer die in a reversible, press-fit manner; the static mixer comprises a first and a second channel; the static mixer comprises a first channel disposed within the frame; - the static mixer comprises a first channel disposed within the frame and forming an integral part of the frame; the static mixer comprises a second channel arranged in the lid; - the static mixer comprises a second channel arranged in the lid and forming an integral part of the lid; the first channel comprises an inlet section, a mixing section, and an outlet section, the mixing section being disposed between the inlet section and the outlet section; the mixing section of the first channel has an inner surface with a shape corresponding to the union of a half side of a cylinder with a rectangular, polygonal, spherical or elliptical shape and the surfaces of p (4≦p≦60) deflectors arranged along the main axis of the cylinder; - the mixing section of the first channel has an inner surface with a shape corresponding to the union of a half side of a cylinder with a rectangular, polygonal, spherical or elliptical cross section and the surfaces of p (4≦p≦60) deflectors arranged along a major axis of the cylinder, the cylinder having a first diameter along the first axis and a second diameter along a second axis, the first and second axes being perpendicular to each other and to the major axis; - the mixing section of the first channel has an inner surface with a shape corresponding to the union of a half side of a cylinder with an elliptical cross section with the surfaces of p (4≦p≦60) deflectors arranged along the main axis of the cylinder, the major axis of the elliptical cross section being 1.1 to 4.0 times larger than the minor axis of the elliptical cross section; the mixing section of the first channel has an inner surface with a shape corresponding to the union of a half side of a cylinder with an elliptical cross section with the surfaces of p (4≦p≦60) deflectors arranged along the major axis of the cylinder, the major axis of the elliptical cross section being 1.1-1.6, 1.4-1.8, 1.6-2.0, 1.8-2.2, 2.0-2.4, 2.2-2.6, 2.4-2.8, 2.6-3.0, 2.8-3.2, 3.0-3.4, 3.2-3.6, 3.4-3.8 or 3.6-4.0 times larger than the minor axis of the elliptical cross section; the mixing section of the first channel has an inner surface with a shape corresponding to the union of a half side of a cylinder with a rectangular, polygonal, spherical or elliptical cross section and the surfaces of p (4≦p≦60) deflectors arranged equidistantly along the main axis of the cylinder; the mixing section of the first channel has an inner surface with a shape corresponding to the union of a half side of a cylinder with a rectangular, polygonal, spherical or elliptical cross section and the surfaces of p (4≦p≦60) deflectors arranged along the main axis of the cylinder in a manner corresponding to the teeth of two intermeshing opposing combs: - 4 ≤ p ≤ 12, 8 ≤ p ≤ 16, 12 ≤ p ≤ 20, 16 ≤ p ≤ 24, 20 ≤ p ≤ 28, 24 ≤ p ≤ 32, 28 ≤ p ≤ 36, 32 ≤ p ≤ 40, 36 ≤ p ≤ 44, 40 ≤ p ≤ 48, 44 ≤ p ≤ 52, 48 ≤ p ≤ 56 or 52 ≤ p ≤ 60; - each deflector surface of the first channel intersects with the major axis of the mixing section of the first channel; - each deflector surface of the first channel protrudes from a half side of the cylinder by a distance of 40% to 80% of the first diameter of the cylinder; - each deflector surface of the first channel protrudes from a half side of the cylinder by a distance of 45% to 80% of the first diameter of the cylinder; - each deflector surface of the first channel protrudes from a half side of the cylinder by a distance of 45% to 55% of the first diameter of the cylinder; - each deflector surface of the first channel protrudes from a half side of the cylinder by a distance of 40% to 80% of the second diameter of the cylinder; - each deflector surface of the first channel protrudes from a half side of the cylinder by a distance of 45% to 80% of the second diameter of the cylinder; - each deflector surface of the first channel protrudes from a half side of the cylinder by a distance of 45% to 55% of the second diameter of the cylinder; the second channel comprises an inlet section, a mixing section, and an outlet section, the mixing section being disposed between the inlet section and the outlet section; the mixing section of the second channel has an inner surface with a shape corresponding to the union of a half side of a cylinder with a rectangular, polygonal, spherical or elliptical shape with the surfaces of q (4≦q≦60) deflectors arranged along the main axis of the cylinder; the mixing section of the second channel has an inner surface with a shape corresponding to the union of a half side of a cylinder with a rectangular, polygonal, spherical or elliptical cross section and the surfaces of q (4≦q≦60) deflectors arranged along a major axis of the cylinder, the cylinder having a first diameter along the first axis and a second diameter along the second axis, the first and second axes being perpendicular to each other and to the major axis; - the mixing section of the second channel has an inner surface with a shape corresponding to the union of a half side of a cylinder with an elliptical cross section with the surfaces of q (4≦q≦60) deflectors arranged along the main axis of the cylinder, the major axis of the elliptical cross section being 1.1 to 4.0 times larger than the minor axis of the elliptical cross section; the mixing section of the second channel has an inner surface with a shape corresponding to the union of a half side of a cylinder with an elliptical cross section with the surfaces of q (4≦q≦60) deflectors arranged along the major axis of the cylinder, the major axis of the elliptical cross section being 1.1-1.6, 1.4-1.8, 1.6-2.0, 1.8-2.2, 2.0-2.4, 2.2-2.6, 2.4-2.8, 2.6-3.0, 2.8-3.2, 3.0-3.4, 3.2-3.6, 3.4-3.8 or 3.6-4.0 times larger than the minor axis of the elliptical cross section; the mixing section of the second channel has an inner surface with a shape corresponding to the union of a half side of a cylinder with a rectangular, polygonal, spherical or elliptical cross section with the surfaces of q (4≦q≦60) deflectors equidistantly arranged along the main axis of the cylinder; the mixing section of the second channel has an inner surface with a shape corresponding to the union of a half side of a cylinder with a rectangular, polygonal, spherical or elliptical cross section and the surfaces of q deflectors (4≦q≦60) arranged along the main axis of the cylinder in a manner corresponding to the teeth of two intermeshing opposing combs: - 4≦q≦12, 8≦q≦16, 12≦q≦20, 16≦q≦24, 20≦q≦28, 24≦q≦32, 28≦q≦36, 32≦q≦40, 36≦q≦44, 40≦q≦48, 44≦q≦52, 48≦q≦56 or 52≦q≦60; - each deflector surface of the second channel intersects with the major axis of the mixing section of the second channel; - each deflector surface of the second channel protrudes from a half side of the cylinder by a distance of 40% to 80% of the first diameter of the cylinder; - each deflector surface of the second channel protrudes from a half side of the cylinder by a distance of 45% to 80% of the first diameter of the cylinder; - each deflector surface of the second channel protrudes from a half side of the cylinder by a distance of 45% to 55% of the first diameter of the cylinder; - each deflector surface of the second channel protrudes from a half side of the cylinder by a distance of 40% to 80% of the second diameter of the cylinder; - each deflector surface of the second channel protrudes from a half side of the cylinder by a distance of 45% to 80% of the second diameter of the cylinder; - each deflector surface of the second channel protrudes from a half side of the cylinder by a distance of 45% to 55% of the second diameter of the cylinder; - the inner surface of the mixing section of the first channel has a shape corresponding to the inner surface of the serpentine groove; the inner surface of the mixing section of the second channel has a shape corresponding to the inner surface of the serpentine groove; the dispenser is configured to juxtapose the first and second channels of the static mixer; - the form-fitting mounting of the lid to the frame places the first and second channels of the static mixer in opposite positions; - the form-fitting mounting of the lid to the frame ensures that the main axes of the mixing sections of the first and second channels of the static mixer are collinear; - inner surfaces of the mixing sections of the first and second channels correspond to inner surfaces of the first and second serpentine grooves, respectively, and are shaped such that the inner surface of the mixing section of the first channel fits into the inner surface of the mixing section of the second channel in a form-fitting manner when mirrored along two axes that are perpendicular to each other and to the major axis of the mixing section of the first channel; - inner surfaces of the mixing sections of the first and second channels correspond to inner surfaces of the first and second serpentine grooves, respectively, and are configured such that the inner surface of the mixing section of the first channel matches the inner surface of the mixing section of the second channel in a form-fitting manner when rotated 180 degrees about the major axis of the mixing section of the first channel; - inner surfaces of the mixing sections of the first and second channels correspond to inner surfaces of the first and second serpentine grooves, respectively, and are formed such that the inner surface of the mixing section of the second channel fits into the inner surface of the mixing section of the first channel in a form-fitting manner when mirrored along two axes that are perpendicular to each other and to the major axis of the mixing section of the second channel; - inner surfaces of the mixing sections of the first and second channels correspond to inner surfaces of the first and second serpentine grooves, respectively, and are configured such that the inner surface of the mixing section of the second channel conforms to the inner surface of the mixing section of the first channel in a form-fitting manner when the lid is rotated 180 degrees about the major axis of the mixing section of the second channel; - the first and second receptacles R1, R2 are each configured as a cavity; - the first and second receptacles R1, R2 each have an outlet connected in fluid communication with the static mixer; the static mixer comprises an inlet, and the first and second receptacles R1, R2 each comprise an outlet connected in fluid communication with the static mixer via the first and second ducts, respectively; the static mixer has an inlet, and the first and second receptacles R1, R2 each have an outlet connected in fluid communication with the inlet of the static mixer; the static mixer comprises an inlet, and the first and second receptacles R1, R2 each comprise an outlet connected in fluid communication with the inlet of the static mixer via the first and second ducts, respectively; - the receptacle R1 and / or the receptacle R2 are arranged in the frame; - the receptacle R1 and / or the receptacle R2 are arranged in the lid; - the receptacle R1 has first and second parts arranged in the frame and the lid, respectively; the receptacle R2 comprises a first and a second part arranged on the frame and the lid, respectively; - the first and second channels of the static mixer are arranged between the receptacles R1, R2 in a form-fitting manner when the lid is attached to the frame; - the first and second receptacles R1, R2 are each configured as an elongated cavity; - the first and second receptacles R1, R2 are each configured as a cavity having a first and second major axis, respectively, along which R1, R2 have a maximum spatial extent; - the first and second receptacles R1, R2 are each configured as a cavity having a first and second major axis, respectively, along which R1, R2 have a maximum spatial extent; The first and second average cross sections A1, A2 lie in first and second planes perpendicular to the first and second major axes, respectively, and the extents R1, R2 along the first and second major axes are:

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[0012] The dispenser of the present invention is designed to dispense first and second viscous materials from first and second compartments of a disposable container (see FIG. 12). The disposable container includes a sleeve comprised of two or more films formed from a polymeric material. In normal use, the disposable container is placed in a dispenser frame, and the dispenser lid is closed and locked to the dispenser frame. The dispenser drive is then electrically or manually activated, causing first and second actuators coupled to the drive to extrude the first and second viscous materials from the first and second receptacles R1 and R2, respectively, and from the container compartments held therein through the static mixer. During the loading, dispensing, and unloading steps, the sleeve of the disposable container must remain intact at all times to prevent contact between the viscous materials and the dispenser.

[0013] To minimize stress on the container sleeve, the first and second receptacles R1, R2 are configured as elongated cavities having first and second major axes along which R1, R2 have maximum spatial extent, and the first and second actuators are configured to translate or expand in a direction perpendicular to the major axes of R1, R2, thereby minimizing the translational or expansion and contraction range of the first and second actuators required to expel the majority of the first and second viscous materials from R1, R2, and the associated deformation and stress on the container sleeve.

[0014] For the same reason, i.e., to minimize stress on the container sleeve, the static mixer is preferably shaped so that its cross section has an aspect ratio, or width-to-height ratio, of 1.1 to 4.0. In a preferred embodiment, the static mixer comprises a mixing section having an inner surface with a shape corresponding to the combination of a cylindrical side surface with an elliptical cross section and the surfaces of n (8≦n≦120) deflectors arranged along the major axis of the cylinder, the major axis of the elliptical cross section being 1.1 to 4.0 times greater than the minor axis of the elliptical cross section. As a further measure to minimize mechanical stress on the container sleeve, the projection of the n deflectors into the mixing section and each of the cylindrical spaces with elliptical cross sections bounded by the half sides of the first and second channels is limited along and to ≦80% of the first and second inner diameters of the cylindrical spaces. Furthermore, according to a preferred embodiment of the dispenser of the present invention, the edges of the n deflectors are chamfered or rounded. Nevertheless, the n deflectors are configured so that the flow path bounded by the mixing section corresponds to the union of four serpentine-shaped, partially overlapping ducts, as depicted in Figure 11. In the framework of the present invention, the term "cylinder" refers to a body having a constant cross section and a finite extension in a direction perpendicular to said cross section. The cross section of a "cylinder" may have an elliptical, circular, polygonal or rectangular shape. The axis perpendicular to the constant cross section of a "cylinder" is called the "major axis".

[0015] The terms "first diameter" and second "diameter" refer to first and second largest diameters of a cylinder having a constant cross section along first and second directions, respectively, the first and second directions being perpendicular to each other and collinear with the cross section.

[0016] The term "equivalent diameter" of a cross section or area is expressed in units of length x length, e.g., cm 2 It relates to the diameter of a circle with the same area size measured in mm.

[0017] The term "working surface" of an actuator, such as a piston, plunger, or diaphragm, refers to the actuator surface that contacts and exerts pressure on the sleeves of the disposable containers positioned within the first and second dispenser receptacles to expel the viscous material contained within the disposable containers.

[0018] The present invention will be further explained below with reference to the drawings. [Brief explanation of the drawings]

[0019] [Figure 1] 1 shows a schematic cross-sectional view of a dispenser with two receptacles for viscous material and an integral static mixer. [Figure 2] 1 shows the dispenser frame and lid. [Figure 3] 1 shows a perspective view of the dispenser with the frame and lid in the open position. [Figure 4] 1 shows a partial cutaway view of a frame with an actuator. [Figure 5] FIG. 1 shows a partial cutaway view of a frame with a diaphragm actuator. [Figure 6] FIG. 10 shows a perspective view of the gasket and actuator diaphragm. [Figure 7a] 1 shows a schematic cross-sectional view of a closed outlet valve. [Figure 7b] 1 shows a schematic cross-sectional view of an open outlet valve. [Figure 8] 1 shows the static mixer channel geometry. [Figure 9]The basic geometric parameters of a static mixer channel are shown. [Figure 10] 1 shows the shape of a static mixer deflector. [Figure 11] 1 shows a static mixer flow duct or channel. [Figure 12] 1 shows a disposable container for a viscous material. [Figure 13] 1 shows a carrier sheet for a disposable container with multiple openings for mixing tubes. [Figure 14] 1 shows the carrier sheet of a disposable container with one opening for a mixing tube. DETAILED DESCRIPTION OF THE INVENTION

[0020] FIG. 1 shows a schematic diagram of a dispenser 1 according to the invention, comprising a drive 2, a transmission 3, first and second actuators 4, 5, first and second receptacles 6 (R1) and 7 (R2) for the first and second viscous materials 12, 13, and a static mixer 14. The drive 2 can be electrically or manually operated. The transmission 3 is configured to convert the movement of the drive 2 into movement of the first and second actuators 4, 5. In a preferred embodiment of the dispenser 1, the drive 2 is a lever ratchet or an electric motor. The transmission 3 is mechanically coupled to the drive 2 and the first and second actuators 4, 5 and is configured as a mechanical or hydraulic transmission. In a preferred embodiment, the transmission 3 is configured as a hydraulic transmission and comprises a first cylinder with a first piston, a second cylinder with a second piston, and first and second spindles (ball screws) coupled to the first and second actuators 4, 5, respectively. In another advantageous embodiment, the power transmission device 3 is configured as a planetary gear and includes a sun gear and a fixed carrier with two or four planetary gears. The first and second receptacles 6, 7 are configured as cavities or chambers suitable for accommodating predetermined amounts of first and second viscous materials 12, 13, respectively. The first and second receptacles 6, 7 include outlets 8, 9, respectively. The first and second actuators 4, 5 are movable in and out of the first and second receptacles 6, 7. When the first and second actuators 4, 5 are moved into the first and second receptacles 6, 7, the first and second viscous materials 12, 13 contained therein are forced through the first and second outlets 8, 9 into ducts 17, 18. The ducts 17, 18 connect the outlets 8, 9 to the inlet 15 of the static mixer 14. The static mixer 14 is configured as a duct or channel and includes an outlet 16 and a number of deflectors 19 disposed between the inlet 15 and the outlet 16. The deflectors 19 facilitate mixing of the first and second viscous materials 12 and 13 as they pass through the static mixer 14 from the inlet 15 to the outlet 16. In an advantageous embodiment, the dispenser 1 includes a valve 21 disposed within the static mixer 14 proximal to the outlet 16.The valve 21 is configured to seal and open the outlet 16 in response to the pressure of the viscous materials 12, 13 being forced through the static mixer 14. Preferably, the valve 21 is configured as a prestressed diaphragm that is in a closed position when the pressure of the viscous materials 12, 13 in the static mixer 14 is below a first preset threshold pressure and in an open position when the pressure of the viscous materials 12, 13 in the static mixer 14 is above a second preset threshold pressure. Preferably, the dispenser 1 includes one or more holding chambers 25, 26 for holding insufficiently mixed viscous materials 12, 13. In the closed position of the valve 21, the viscous materials 12, 13 passing through the static mixer 14 are diverted into the holding chambers 25, 26. When the holding chambers 25, 26 are completely filled, the pressure of the viscous materials 12, 13 in the static mixer 14 increases until it exceeds the second threshold or opening pressure of the valve 21. In an advantageous embodiment, the static mixer 14 comprises first and second channels, each of which is provided with a number of deflectors 19 .

[0021] FIG. 2 shows a perspective view of the frame 22 and lid 23 of the dispenser of the present invention in a side-by-side arrangement. The first and second receptacles R1 and R2 are each configured as a two-part cavity with a first portion 6A and 7A disposed within the frame 22 and a second portion 6B and 7B disposed within the lid 23. Preferably, the inner surfaces of the first and second receptacles R1 and R2 have a cylindrical shape with a hemispherical front end. The second receptacle portions 6B and 7B within the lid 23 are provided with the first and second outlets 8 and 9, respectively. The frame 22 is provided with a static mixer first channel 37, and the lid 23 is provided with a static mixer second channel 38. The first and second static mixer channels 37 and 38 each include multiple deflectors 19, inlets 15A and 15B, respectively, and outlets 16A and 16B, respectively. The lid 23 comprises two ducts 17, 18 connecting the outlets 8, 9 to the inlets 15A, 15B of the first and second channels 37, 38 of the static mixer. The lid 23 further comprises two holding chambers 25, 26 for holding poorly mixed viscous material.

[0022] Figure 2 shows an advantageous embodiment of the dispenser of the invention, comprising first and second actuators configured as diaphragms for the discharge of the first and second receptacles, respectively. The first and second diaphragm actuators constitute the deformable boundaries of the first and second receptacles, respectively, and are preferably arranged in a frame 22. Thus, in Figure 2, the reference signs 6A and 7A also relate to the working surfaces of the first and second diaphragm actuators in their contracted state.

[0023] Figure 3 shows a perspective view of the frame 22 and lid 23 of the dispenser of the present invention in the open position. Reference numerals in Figure 3 refer to the same features and have the same meanings as those previously described in connection with Figure 2. Figure 3 also shows the hinge 24 by which the lid 23 is pivotally coupled to the frame 22. In the closed position of the dispenser, the second static mixer channel 38 in the lid 23 is disposed opposite the first static mixer channel 37 in the frame 22. This results in a spatial arrangement of the deflector 19 in the mixing sections of the first and second static mixer channels 37, 38, as shown in Figure 3 as inset 310. In the closed position depicted in inset 310, the first and second static mixer channels 37, 38 and the mixing sections of the deflector 19 disposed therein bound a flow path composed of four serpentine-shaped interconnected, partially overlapping ducts (see Figure 9). As previously discussed in connection with Figure 2, reference numerals 6A and 7A also relate to the working surfaces of the first and second diaphragm actuators in the contracted state.

[0024] In an advantageous embodiment, the first and second mixer channels 37, 38 form integral parts of the frame 22 and lid 23, respectively.

[0025] In another advantageous embodiment, the static mixer comprises first and second dies reversibly insertable into sockets disposed in the frame 22 and the lid 23, respectively. This configuration allows for easy interchangeable use of static mixers having mixing sections with shapes adapted and optimized for mixing different types of viscous fluids. Preferably, the first and second dies of the static mixer are held in their respective sockets in the frame 22 and the lid 23 via suitable fasteners, such as matching tongue and groove or matching pin and blind hole fasteners.

[0026] 4 shows a partially cutaway perspective view of the frame 22 with the first portions 6A, 7A of the first and second receptacles R1, R2 and the first and second actuators 4, 5 protruding into these portions. The first and second actuators 4, 5 are mounted on rods 30 connected to a mechanical transmission (not shown in FIG. 4). The first and second actuators 4, 5 have working surfaces 27, 28 that, upon advancement into the first and second receptacles R1, R2, push the first and second viscous materials contained therein. In a preferred embodiment, the working surfaces 27, 28 have a shape corresponding to the connection between the half-side surfaces of a cylinder with an elliptical or circular cross-section and the surfaces of the first and second half-domes located at the front end of the cylinder. Apart from the depiction in Figure 5, the working surfaces 27, 28 may each have a shape corresponding to the union of half sides of a cylinder with a polygonal, rectangular or circular cross section and the surfaces of first and second half domes arranged at the front end of the cylinder.

[0027] 5 shows a partial cutaway perspective view of the frame 22 with the first portions 6A, 7A of the first and second receptacles R1, R2 and the first and second actuators 4, 5 configured as first and second diaphragms 31, 32, respectively. For illustrative purposes, the first diaphragm 31 is shown in a fully extended position, while the second diaphragm 32 is depicted in a retracted position. Under normal operating conditions of the dispenser of the present invention, the first and second diaphragms are moved synchronously, contrary to the illustrative depiction of FIG. 5. In an advantageous embodiment, the first and second diaphragms 31, 32 each comprise a flange 33, 34 that is seated in an appropriately shaped groove disposed in the frame 22.

[0028] In an advantageous embodiment, the first and second diaphragms 31, 32, respectively, are mechanically actuated via one or two rods (not shown in Figure 4), to which they are attached via suitable fasteners, such as keyhole-shaped tongue-and-groove fasteners.

[0029] In another advantageous embodiment, the first and second diaphragms 31, 32 are hydraulically actuated via a hydraulic transmission (not shown in FIG. 4 ) containing hydraulic fluid. The hydraulic transmission comprises two or more ducts with outlets located in the frame 22 opposite the respective active surfaces of the first and second diaphragms 31, 32, i.e., below the first and second diaphragms 31, 32 in the representation of FIG. 5 . In such a hydraulic embodiment, the flanges 33, 34 of the first and second diaphragms and the corresponding grooves in the frame 22 are configured as leak-proof gaskets. For this purpose, the grooves in the frame 22 each comprise either a circumferential undercut or a circumferential recess, and each flange 33, 34 comprises either a transverse extension or a bulge that fits snugly into the undercut or recess. In another advantageous embodiment, each diaphragm flange 33, 34 is bonded to the frame 22 via an adhesive.

[0030] With respect to hydraulic actuation of the first and second diaphragms 31, 32, it should be noted that in the closed position of the dispenser of the present invention, the dispenser lid is press-fit and locked to the frame 22, and the diaphragm flanges 33, 34 are secured in a high-pressure leak-proof manner within corresponding grooves in the frame 22. The above-described means for securing the diaphragm flanges 33, 34 to the frame 22 are adapted to prevent leakage of hydraulic fluid under atmospheric pressure, eliminating the need for high-pressure leak-proof seals.

[0031] 6 shows a perspective view of the frame 22 and gasket 50 of an advantageous embodiment of the dispenser of the present invention. The frame 22 comprises a first channel 37 of the static mixer with a number of deflectors 19 and first portions 6A and 7A of the first and second receptacles, respectively.

[0032] The cutout 51 in the gasket 50 is shaped according to the contours of the static mixer. The gasket 50 comprises first and second actuators 4, 5. The first and second actuators 4, 5 are configured as diaphragms 31, 32, respectively, and form an integral part of the gasket 50. For illustrative purposes, the first actuator 4 is depicted in an expanded state and the second actuator 5 is depicted in a contracted state. Contrary to the exemplary depiction in FIG. 6, under normal operating conditions the first and second actuators 4, 5 are simultaneously expanded or contracted. In a preferred embodiment, the gasket 50 is formed from a sheet of resilient material selected from the group consisting of natural rubber, synthetic rubber, polymers, and mixtures thereof. Preferably, the gasket 50 is formed from a composite sheet material including fabrics or filaments formed from polymeric or metallic materials.

[0033] Gasket 50 is attached to either frame 22 or the dispenser lid (not shown in FIG. 6).

[0034] In another advantageous embodiment of the dispenser of the present invention (not shown in FIG. 6), the first and second actuators do not form an integral part of the gasket. For example, the first and second actuators may be configured as pistons, plungers, or separate diaphragms. In such an embodiment, the gasket comprises two cutouts shaped according to the contours of the first and second receptacles or the contours of the first receptacle portions 6A, 7A.

[0035] In yet another advantageous embodiment of the dispenser of the present invention (not shown in Figure 6), the gasket extends across the outlet section of the static mixer and forms a diaphragm for an outlet valve similar to that described below in connection with Figures 7a and 7b.

[0036] 7a and 7b show schematic cross-sectional views of outlet valve 21 in a closed and open state, respectively. Valve 21 comprises first flow path 21B, second flow path 21A, and diaphragm 21C. First and second flow paths 21B and 21A each form part of a static mixer. First flow path 21B is located in dispenser lid 23, and second flow path 21A is located in dispenser frame 22. In another, equally advantageous embodiment of valve 21 (not shown in FIG. 7), first flow path 21B is located in frame 22, and second flow path 21A is located in lid 23. First flow path 21B is connected to a mixing section of the static mixer (not shown in FIG. 7). Viscous materials 12 and 13 extruded from the disposable container flow from the mixing section into first flow path 21B. Second flow path 21A leads to dispenser outlet 16.

[0037] The viscous materials 12, 13 are enclosed within the flexible sleeve of the disposable container (see FIG. 12) and do not contact the first and second flow channels 21B, 21A, the diaphragm 21C, or any other part of the dispenser. For simplicity and clarity, the flexible sleeve of the disposable container is not shown in FIGS. 7a and 7b.

[0038] Diaphragm 21C is formed from a resilient sheet material and is attached to either frame 22 or lid 23. In the form-fitting attachment of lid 23 to frame 22 depicted in Figures 7a and 7b, diaphragm 21C is inserted and clamped between frame 22 and lid 23 in the area bounding both first and second flow paths 21B, 21A. Adjacent either first or second flow paths 21B, 21A, diaphragm 21C may simply abut frame 22 or lid 23 and be separated therefrom.

[0039] In the closed state of valve 21 depicted in Figure 7a, diaphragm 21C is suspended between first and second flow paths 21B, 21A and blocks the flow of viscous materials 12, 13 from the mixing section of the static mixer to dispenser outlet 16. Diaphragm 21C is configured in a manner, i.e., has a modulus of elasticity, such that deflection of diaphragm 21C from a planar configuration requires the application of a force or pressure above a predetermined threshold.

[0040] Figure 7b shows the open state of the valve 21 where the pressure of the viscous material 12, 13 exceeds a threshold value such that the diaphragm 21C is deflected to form an opening through which the viscous material 12, 13 can flow from the first flow path 21B to the second flow path 21A. Contrary to the exemplary depiction in Figure 7b, in reality the diaphragm 21C may not perfectly fit the contours of the second flow path 21A.

[0041] In an advantageous embodiment of the dispenser of the invention, the diaphragm of the valve 21 forms an integral part of a gasket similar to that described above in connection with FIG.

[0042] FIG. 8 depicts the mixing sections of the first and second static mixer channels 37 and 38, respectively, with inner surfaces 41 and 42 of various shapes corresponding to the junction of half sides of a cylinder with a spherical, elliptical, or rectangular cross-section with the surfaces of the multiple deflectors 19. FIG. 8 also depicts a coordinate system with orthogonal axes (1,0,0), (0,1,0), and (0,0,1). The major axes of the mixing sections of the first and second channels 37 and 38 are parallel to the coordinate axis (0,1,0). Apart from a cylinder with a spherical, elliptical, or rectangular cross-section, the inner surfaces 41 and 42 may also have a shape corresponding to the junction of half sides of a cylinder with a polygonal cross-section, such as a hexagonal or octagonal, with the surfaces of the multiple deflectors 19. The deflectors 19 depicted in FIG. 8 each have an L-shaped cross-section in a cross-section spanning the coordinate axes (1,0,0) and (0,1,0). Apart from the deflector 19 shown in FIG. 8 having an L-shaped cross section, the present invention encompasses deflectors having various shapes as depicted in FIG.

[0043] FIG. 9 schematically illustrates the geometric features of the mixing sections of the first and second channels 37 and 38 of the static mixer, where the inner surfaces 41 and 42 correspond to the junction of half sides of a cylinder 47 having an elliptical cross section with the surfaces of multiple deflectors 19. FIG. 9 also illustrates a coordinate system with orthogonal axes (1,0,0), (0,1,0), and (0,0,1). The cylinder 47 has a first maximum diameter along the direction (1,0,0) and a second maximum diameter along the direction (0,0,1). The first and second diameters of the cylinder 47 correspond to the lengths of the major and minor axes of the elliptical cross section of the cylinder 47, respectively. The major axes 39 and 40 are parallel to the coordinate axis (0,1,0). In FIG. 9, some of the deflectors are omitted for ease of visualization. Apart from the depiction in FIG. 9, the cylinder 47 may have a polygonal, rectangular, or circular cross section. The mixing sections of the first and second channels 37, 38 have major axes 39, 40 that coincide with the major axis of the cylinder 47. In an advantageous embodiment of the dispenser of the present invention, the mixing sections of the first and second channels 37, 38 have shapes that are compatible in juxtaposition, i.e., when the dispenser lid is form-fitted to the dispenser frame, such that the inner surface 41 can be transformed into the inner surface 42, and vice versa, by a 180° rotation about the major axes 39, 40. Alternatively, the inner surface 41 can be transformed into the inner surface 42, and vice versa, by continuous mirroring along two mutually perpendicular axes and the major axes 39, 40. The inner surface 41 has a diameter 43 and a height 45 that correspond to half the length of the major axis and half the length of the minor axis of the elliptical cross section of the cylinder 47, respectively. Similarly, the inner surface 42 has a diameter 44 and a height 46 that correspond to half the length of the major axis and half the length of the minor axis of the elliptical cross section of the cylinder 47, respectively. In embodiments where the cylinder 47 has a rectangular cross section, the diameters 43, 44 and heights 45, 46 correspond to half the length of a first side and half the length of a second side of the rectangle, respectively. In embodiments where the cylinder 47 has a circular cross section, the diameters 43, 44 and heights 45, 46 correspond to the diameter and radius of a circle, respectively. In embodiments where the cylinder 47 has a polygonal cross section, the diameters 43, 44 and heights 45, 46 correspond to the equivalent diameter and half the equivalent diameter, respectively, of a circle having the same area as the polygon.In an advantageous embodiment, the deflector 19 protrudes from a half-side surface of the cylinder 47 in the direction of the coordinate axis (1,0,0) by a distance between 40% and 80% of the diameters 43 and 44, i.e., by a distance between 40% and 80% of the first diameter of the cylinder 47. In a further advantageous embodiment, the deflector 19 protrudes from a half-side surface of the cylinder 47 in the direction of the coordinate axis (0,0,1) by a distance between 80% and 160% of the heights 45 and 46, i.e., by a distance between 40% and 80% of the second diameter of the cylinder 47. In yet another advantageous embodiment, the deflector 19 protrudes from a half-side surface of the cylinder 47 by a distance between 40% and 80% of the diameters 43 and 44 in the direction of the coordinate axis (1,0,0) and by a distance between 80% and 160% of the heights 45 and 46 in the direction of the coordinate axis (0,0,1). Increasing the protrusion distance of the deflector 19 from the half side of the cylinder 47 enhances mixing of the first and second viscous materials in the static mixer, but also increases the ram pressure. By proper sizing of the deflector protrusion, the ratio of mixing intensity to ram pressure can be adjusted and optimized for a variety of materials with widely varying viscosities.

[0044] FIG. 10 shows perspective views of various embodiments of the mixing sections of the first and second channels 37 and 38 of the static mixer, where the inner surfaces 41 and 42 correspond to the junction of half sides of a cylinder with an elliptical cross-section and the surface of multiple deflectors 19. FIG. 10 also shows a coordinate system with orthogonal axes (1,0,0), (0,1,0), and (0,0,1). The major axes of the mixing sections of the first and second channels 37 and 38 are parallel to the coordinate axis (0,1,0). Apart from cylinders with elliptical cross-sections, the inner surfaces 41 and 42 may also have shapes corresponding to the junction of half sides of a cylinder with a polygonal, rectangular, or circular cross-section and the surface of the deflectors 19. As depicted in FIG. 10, the deflectors 19 can have an essentially rhombohedral shape with a rectangular cross-section in a cross-section spanning the coordinate axes (1,0,0) and (0,1,0). In a cross section spanning the coordinate axes (1,0,0) and (0,0,1), the deflector 19 can have a rectangular, polygonal, circular, or elliptical cross section. As previously mentioned, the dispenser of the present invention is designed to be used with a disposable container for viscous material having a sleeve made of two or more films formed from a polymeric material (see FIG. 12). As the viscous material is extruded from the disposable container, pressure is applied to the sleeve so that it conforms to the inner surfaces of the dispenser, particularly inner surfaces 41 and 42. In an advantageous embodiment of the dispenser of the present invention, the edges of the deflector 19 are rounded or chamfered to minimize stress on the container sleeve.

[0045] FIG. 11 shows a perspective cutaway view of a duct or channel 100 bounded by a mixing section of a static mixer of the present invention and a deflector 19 disposed within the section. For clarity, the depiction in FIG. 11 omits portions of the static mixer's outer wall and the deflector. Duct or channel 100 corresponds to the combination of four serpentine, overlapping ducts 101, 102, 103, and 104, shown in an exploded view. The serpentine surface of duct 101 is coplanar with the serpentine surface of duct 103 and perpendicular to the serpentine surfaces of ducts 102 and 104. Similarly, the serpentine surface of duct 102 is coplanar with the serpentine surface of duct 104 and perpendicular to the serpentine surfaces of ducts 101 and 103. In a particularly advantageous embodiment, the dispenser of the present invention is configured for a disposable container comprising a carrier sheet or shield with multiple openings, as shown in FIG. 13. The multiple openings are contained within a mixing tube of the disposable container. When a disposable container is inserted into the dispenser of the present invention and the lid is attached to the frame in a form-fitting manner, the carrier sheet or shield with the multiple openings is interposed between the deflectors 19 of the first and second channels of the static mixer, i.e., between the upper and lower deflector rows and the sleeve of the disposable container in the depiction of Figure 11. The multiple openings are arranged in the carrier sheet or shield of the disposable container in a pattern that is synchronized or aligned with the deflectors 19 in such a manner that the duct or flow path 100 has the shape depicted in Figure 11. Together, the multiple openings restrict the flow of the viscous material in a specific manner so that the volumetric division at each branch of the duct or flow path 100 is in the range of 45:55 to 55:45.

[0046] FIG. 12 shows a perspective view of a disposable container 48 containing two viscous materials 12, 13 for use in the dispenser of the present invention. The container 48 comprises a flexible sleeve 49 made of two or more polymer films thermally or adhesively sealed along a contoured seam to form a multi-compartment pouch. The thermally or adhesively sealed seam is contoured in a pattern that encompasses the cross-sections of the first and second receptacles R1, R2, the static mixer, the duct connecting them, and the two holding chambers of the dispenser of the present invention. FIG. 12 shows the sleeve 49 as it would appear inside the dispenser of the present invention under high pressure, when the sleeve 49 conforms to the inner surface of the dispenser. Contrary to the depiction in FIG. 12, the static mixer portion of the container 48 and the sleeve 49 are each constructed as a cylindrical tube without deflector recesses. Within the framework of the present invention, the cylindrical tube of the disposable container is also referred to as the mixing tube. As previously mentioned, the flexible sleeve 49 conforms to the interior surfaces of the dispenser of the present invention, particularly the static mixer in which the first and second receptacles and deflector are housed. Viscous material extruded from the first and second containers flows through the mixing tubes of the disposable containers, which are confined in a serpentine duct or flow path by the interior surfaces of the static mixer of the dispenser of the present invention.

[0047] In a particularly advantageous embodiment, the disposable container 48 comprises a carrier sheet (not shown in FIG. 12; see FIGS. 13 and 14) formed from a polymer sheet material, and the sleeve 49 comprises two polymer films, each bonded to one of two opposing surfaces of the carrier sheet. Such a carrier sheet provides the container 48 with greater mechanical stability, improving handling and facilitating insertion into the dispenser of the present invention. In a further advantageous embodiment, the disposable container 48 comprises a carrier sheet or shield with multiple openings contained within the mixing tube of the disposable container 48. As discussed above in connection with FIG. 11, the multiple openings are arranged in the carrier sheet or shield in a pattern that is synchronized or aligned with the deflectors of the static mixer of the dispenser of the present invention.

[0048] FIG. 13 shows a carrier sheet 110 for a disposable container suitable for the dispenser of the present invention, as depicted in FIG. 12. The sleeve of the disposable container (not shown in FIG. 13) is bonded to the surface of the carrier sheet 110 via a continuous adhesive or sealing seam 111. The seam 111 includes an opening or outlet 112. The carrier sheet 110 includes multiple openings 113 contained within the mixing tube of the disposable container (not shown in FIG. 13) and first and second openings 115, 116 for receiving the first and second viscous materials, respectively. The majority of the periphery of the openings 115, 116 is surrounded by the adhesive or sealing seam 111. The seam 111 extends along the multiple openings 113 and coincides with the boundary of the mixing tube. The seam 111 is patterned so that the mixing tube of the disposable container extends to the outlet 112 and includes multiple openings 113. As depicted in Figure 13, the carrier sheet 110 may include further openings for two holding chambers and on-off valves. Advantageously, portions of the periphery of the openings 115, 116 may be serrated to facilitate breaking of the sleeves or tubes enclosing the first and second viscous materials.

[0049] FIG. 14 shows a disposable container carrier sheet 110' suitable for another advantageous embodiment of the dispenser of the present invention. The disposable container sleeve (not shown in FIG. 14) is bonded to the surface of the carrier sheet 110' via a continuous adhesive or sealing seam 111. The seam 111 includes an opening or outlet 112. The carrier sheet 110' includes multiple openings 114 that are contained within the mixing tube of the disposable container (not shown in FIG. 14), as well as first and second openings 115, 116 for receiving the first and second viscous materials, respectively. The majority of the periphery of the openings 115, 116 is surrounded by the adhesive or sealing seam 111. The seam 111 extends along the openings 114 and coincides with the boundary of the mixing tube. The seam 111 is patterned so that the mixing tube of the disposable container extends to the outlet 112 and includes the openings 114. As depicted in Figure 14, the carrier sheet 110' may include further openings for two holding chambers and on-off valves. Advantageously, portions of the periphery of the openings 115, 116 may be serrated to facilitate breaking of the sleeves or tubes enclosing the first and second viscous materials. [Explanation of symbols]

[0050] 1 dispenser 2 Drive 3 Power transmission device 4 First Actuator 5 Second Actuator 6 First receptacle R1 6A First part of the first receptacle R1 6B Second part of first receptacle R1 7 Second receptacle R2 7A First part of second receptacle R2 7B Second part of second receptacle R2 8 Outlet of the first receptacle R1 9 Outlet of the second receptacle R2 10 Inner surface S1 of first receptacle R1 11 Inner surface S2 of second receptacle R2 12 First Viscous Material 13 Second Viscous Material 14 Static Mixer 15 Static mixer inlet 15A Static mixer inlet of the first channel of the static mixer 15B Static mixer inlet of second channel of static mixer 16 Static mixer outlet 16A Static mixer outlet of the first channel of the static mixer 16B Static mixer outlet of second channel of static mixer 17 First Duct 18 Second Duct 19 Deflector 21 Valve 21A Second flow path of valve 21 21B First flow path of valve 21 21C Valve 21 diaphragm 22 Dispenser Frame 23 Dispenser Lid 24 Dispenser hinge 25 holding chamber 26 Holding Chamber 27 First actuator action surface 28 Second actuator working surface 30 Actuator rod 31 first actuator diaphragm 32 Second Actuator Diaphragm 33 First actuator diaphragm flange 34 Second Actuator Diaphragm Flange 35 Groove in the first receptacle R1 for the diaphragm flange 36 Groove in the second receptacle R2 for the diaphragm flange 37 First channel of static mixer 38 Second channel of static mixer 39 Main axis of the first channel of the static mixer 40 Main shaft of the second channel of the static mixer 41 Inner surface of first channel of static mixer 42 Inner surface of second channel of static mixer 43 Diameter of the first channel of the static mixer 44 Diameter of the second channel of the static mixer 45 Height of the first channel of the static mixer 46 Height of the second channel of the static mixer 47 Cylinder 48 Disposable containers for viscous materials 49 Container sleeve 50 gaskets 51 Gasket cutout for static mixer 100 Duct or flow path 101 Serpentine duct 102 Serpentine duct 103 Serpentine duct 104 Serpentine Duct 110 Disposable container carrier sheet 110' Disposable Container Carrier Sheet 111 Glue or seal seams 112 Openings or Exits 113 Multiple openings in carrier sheet 110 (to be accommodated in mixing tubes) 114 Single opening in carrier sheet 110' (contained within mixing tube) 115 opening for receiving first viscous material 116 opening for receiving second viscous material

Claims

1. - A static mixer; - first and second receptacles R 1 , R 2 for the first and second viscous materials, each receptacle R 1 , R 2 being connected in fluid communication with said static mixer; first and second actuators configured for the evacuation of each of the receptacles R 1 , R 2 ; an electrically operable drive; at least one hydraulic transmission device configured to convert a drive motion into first and second actuator motions; Equipped with the static mixer forms an integral part of the dispenser; A dispenser, wherein the static mixer comprises a mixing section having a cylindrical body and n (8<n<120) deflectors protruding from the inner surface of the cylindrical body and arranged along a major axis of the cylindrical body.

2. - A static mixer; - first and second receptacles R 1 , R 2 for the first and second viscous materials, each receptacle R 1 , R 2 being connected in fluid communication with said static mixer; first and second actuators configured for the evacuation of each of the receptacles R 1 , R 2 ; an electrically operable drive; at least one hydraulic transmission device configured to convert a drive motion into first and second actuator motions; Equipped with the static mixer forms an integral part of the dispenser; the static mixer has a cylindrical body; the cylinder has an elliptical cross section; The dispenser wherein the major axis of the elliptical cross section is 1.1 to 4.0 times greater than the minor axis of the elliptical cross section.

3. The dispenser of claim 1 , wherein the n deflectors are arranged such that four serpentine-shaped interconnected flow paths are formed in the mixing section.

4. - A static mixer; - first and second receptacles R 1 , R 2 for the first and second viscous materials, each receptacle R 1 , R 2 being connected in fluid communication with said static mixer; first and second actuators configured for the evacuation of each of the receptacles R 1 , R 2 ; an electrically operable drive; at least one hydraulic transmission device configured to convert a drive motion into first and second actuator motions; Equipped with the static mixer forms an integral part of the dispenser; The first and second receptacles R １ , R ２ are configured as cavities having first and second major axes, respectively, and are oriented along the major axes R １ , R ２ has a maximum spatial extent, and the first and second actuators are respectively connected to the first and second receptacles R １ , R ２ and configured to translate or expand and contract in a direction perpendicular to each of said major axes.

5. - A static mixer; - first and second receptacles R 1 , R 2 for the first and second viscous materials, each receptacle R 1 , R 2 being connected in fluid communication with said static mixer; first and second actuators configured for the evacuation of each of the receptacles R 1 , R 2 ; an electrically operable drive; at least one hydraulic transmission device configured to convert a drive motion into first and second actuator motions; Equipped with the static mixer forms an integral part of the dispenser; The first and second receptacles R １ , R ２ is the inner surface S with the end cross section １ , S ２ and The end cross section is Each of the first and second major axes and a length L along the first major axis １ and the length L along the second major axis ２ and the equivalent diameter D １ , D ２ a half side of a cylinder having a polygonal, rectangular, elliptical or circular cross section with each of first and second semi-dome surfaces disposed at a front end of the cylindrical body; , a dispenser.

6. 2≦L １ / D １ ≦12 and 2≦L ２ / D ２ 6. The dispenser of claim 5, wherein ≦12.

7. The first and second actuators are connected to the receptacle R １ , R ２ Facing each of the areas F １ , F ２ The surface of action is [Equation 1] and [Equation 2] 7. The dispenser according to claim 5 or 6, wherein:

8. 8. A dispenser according to any preceding claim, wherein the first and second actuators each comprise a plunger or piston.

9. - A static mixer, - first and second receptacles R 1 , R 2 for the first and second viscous materials, each receptacle R 1 , R 2 being connected in fluid communication with said static mixer; first and second actuators configured for the evacuation of each of the receptacles R 1 , R 2 ; an electrically operable drive; at least one hydraulic transmission device configured to convert a drive motion into first and second actuator motions; Equipped with the static mixer forms an integral part of the dispenser; The dispenser wherein the first and second actuators each comprise a diaphragm.

10. The dispenser of any one of claims 1 to 9, wherein the dispenser comprises a gasket.

11. 11. The dispenser of claim 10, wherein the first and second actuators respectively comprise first and second diaphragms which form an integral part of the gasket.

12. - A static mixer; - first and second receptacles R 1 , R 2 for the first and second viscous materials, each receptacle R 1 , R 2 being connected in fluid communication with said static mixer; first and second actuators configured for the evacuation of each of the receptacles R 1 , R 2 ; an electrically operable drive; at least one hydraulic transmission device configured to convert a drive motion into first and second actuator motions; Equipped with the static mixer forms an integral part of the dispenser; The dispenser includes a valve for opening and closing the outlet of the static mixer.

13. - A static mixer; - first and second receptacles R 1 , R 2 for the first and second viscous materials, each receptacle R 1 , R 2 being connected in fluid communication with said static mixer; first and second actuators configured for the evacuation of each of the receptacles R 1 , R 2 ; an electrically operable drive; at least one hydraulic transmission device configured to convert a drive motion into first and second actuator motions; Equipped with the static mixer forms an integral part of the dispenser; The dispenser comprises a frame and a lid.

Images