1333results about "Pipeline expansion-compensation" patented technology

Some embodiments disclosed herein related to a device for transferring precise amounts of fluid from at least one source container to a at least one target container. In some embodiments, the fluid is first transferred from the source container (e.g., a vial) through a connector to an intermediate measuring container (e.g., a syringe). In some embodiments air can pass through an air inlet and enter the vial to compensate for the volume of fluid withdrawn from the vial. An air check valve or a bag or a filter can prevent the fluid from escaping through the air inlet. The precisely measured amount of fluid can then be transferred from the intermediate measuring container to the target container (e.g., an IV bag). In some embodiments the connector can include a source check valve and a target check valve to direct fluid first from the source container to the intermediate measuring container and then from the intermediate measuring container to the target container. Some embodiments of the device can include a motor and a controller for automatically actuating a plunger of the syringe to transfer the desired amount of fluid.

A fitting for a fluid connector comprising a body that accepts a main conduit and connects to a branch conduit where the main conduit is inserted through an opening in the body. An aperture is formed in the main conduit such that the main conduit and branch conduit are in fluid communication.

A connecting structure of an externally resin-coated small-diameter metallic pipe having an excellent corrosion-resistant property with respect to a mating member is provided. According to the present invention, a resin-uncovered portion of the metallic pipe provided for applying an end processing thereon is completely covered with a protective pipe made of a resin material so that the processed pipe can be connected with the mating member without spoiling its anti-chipping property and an anti-splashing property of the metallic pipe over the entire length thereof. With the exception of the end of the metallic pipe corresponding to the margin at least required for applying an end processing on the pipe, the pipe is covered with an extrusion-moldable thick film-like resin and is connected with a mating member by means of a clamp nut assembled to the pipe end so as to be screw-fitted with the mating member. The connecting structure according to this invention features that one end of a resin pipe is fitted about the above-described resin coated layer on the metallic pipe while the other end of the resin pipe is inserted into, or fitted about, the clamp nut and the resin pipe is fixed to the clamp nut at least at a single portion thereof.

A multiple gas pilot burner assembly for a household heating appliance. The pilot burner includes an injector having a first conduit for receiving a flow of a first combustible fluid, a second conduit for receiving a flow of a second combustible fluid and a third conduit connected to and in fluid communication with the first and second conduits which is configured to receive the flow of the first combustible fluid from the first conduit or the flow of the second combustible fluid from the second conduit. A single nozzle at the outlet of the third conduit is provided for supplying a pilot flame. The assembly also includes a single flame igniter positioned to cause an ignition of the pilot flame at the nozzle and also a single thermocouple positioned to be heated by the pilot flame and to generate an electrical current when heated.

A suction elbow is divided in a plurality of sub-channels similar to each other by one or more guide vanes made of a curved plate and flat plates connected to the curved plate based on the following formulas.p0: overhang length at the inlet of the elbowh: outlet breadth of the elbowf: reduction ratio of the elbow (f=W/h)W: inlet breadth of the elbowm: number of sub-channels (m>=2)an: inlet breadth of n-th sub-channel (a0 indicates the radius of curvature of the inner side wall and am indicates the radius of curvature of the outer side wall)r: aspect ratio of the sub-channelsbn: outlet breadth of n-th sub-channel

An improved coupling, such as a transition tee coupling, is described having press-connect fittings on the ends and a push-connect fitting on the outlet. The improved transition tee coupling is formed using a reduced-outlet tee having press-connect fittings on all three sockets. An unfinished end of a tailpiece having a push-connect fitting on the opposite end is inserted into the outlet socket of the press-connect tee. The press-connect fitting of the outlet tee is crimped using a special press tool jaw that does not damage the push fitting on the tailpiece.

A mechanical joint for a gas turbine engine includes:(a) an annular first component having an annular, radially-extending first flange; (b) an annular second component having an annular, radially-extending second flange abutting the first flange; (c) a plurality of generally radially-extending radial channels passing through at least one of the first and second flanges; (d) a plurality of generally axially-extending channels extending through the first flange and communicating with respective ones of the radial channels; and (e) a plurality of fasteners clamping the first and second flanges together.

A fluid transfer assembly for transporting medicinal substances. The fluid transfer assembly includes flexible tubes and a manifold each comprising silicone. The manifold has an inner protrusion and connector portions having inner walls. Free ends of the tubes are inserted into complementary configured inner walls of the connector portions until each of the free ends abut the inner protrusion, which creates a continuous uninterrupted passageway between the inner bores of the tubes through the manifold.

An exhaust pipe decoupler for vehicles including a bellows (10), an outer braid member (20) spaced from the bellows and braided with a predetermined angle, a retainer (30) having a support (31) inwardly curved at both ends thereof for engaging to a ring damper (40), the retainer being affixed to the ends of the bellows (10) and installed between the outer surface of the bellows (10) and the outer braid member (20) to prevent direct contact thereof, the ring damper (40) located outward the support (31) formed in the retainer (30), a fixing cap (50) coupled to the outer diameter of the outer braid member (20) in order that the outer braid member (20) and the retainer (30) are located outward the bellows (10), wherein the outer braid member (20) absorbs tension in excessive outer forces, i.e., displacement of tension and compression, and the ring damper (40) controls the displacement of compression and shear displacement by the ring damper (40), thereby controlling the bellows within the elastic range.

A gasket includes a fist sealing portion, a second sealing portion, and an elastic arm sealingly connecting between the two. The first sealing portion sealingly engages a first member and the second sealing portion sealingly engages a second member. The elastic arm is not highly compressed between the members, allowing the gasket to vibrationally decouple the first member from the second member.

A connector assembly for interconnecting separate sections of tubing, e.g., catheters, and a method for using the same. Connector assemblies in accordance with embodiments of the present invention may be a two-piece construction having a connector pin and a strain relief device. The strain relief device, in addition to providing secure, substantially leak-free coupling of the tubing sections, may also provide strain relief to the tubing interconnection.

An exhaust gas bellows expansion joint for joining a first section and a second section of an exhaust pipe. The exhaust gas bellows expansion joint including a first corrugated pipe for conveying exhaust gas through the joint, a protective sleeve, which is inserted in the first corrugated pipe, a second corrugated pipe, which coaxially surrounds the first corrugated pipe, and an annular space between the first corrugated pipe and the second corrugated pipe for the passage of liquid through the joint.

The present invention relates to an improved coupling device for tube and that is configured with a tube and an insert that can be fixedly disposed within the tube. The insert includes at least an enlarged portion that has an annular groove thereof, and a receiving space. The tube is provided with a plurality of through holes at the middle portion or end portions. The insert can be disposed within the tube and the outer of the tube is machined to form an annular recess corresponding to the annular groove in a manner such that the insert is fixedly disposed within the tube. Wherein each of the two tubes is provided with an insert in the position to be connected, and the tubes is arranged side-by-side at the area to be connected. An enclosing element is deployed to the connecting area such that the tubes are fixedly connected.

Dust boot assemblies for providing grease relief while preventing or minimizing infiltration of contaminants into a cavity in the dust boot and between the surfaces of a greased joint coupled to the dust boot. Some such dust boot assemblies include two-piece grease relief inserts having a body and a shield, wherein the body includes grease relief route(s) and the shield prevents or minimizes infiltration of contaminants into the grease relief route(s). Other dust boot assemblies include one-piece grease relief inserts with integral body and shield components. Some grease relief routes include axial and radial channels. Grease relief inserts are inserted under an edge of a dust boot. A dust boot skirt covers grease relief ports through which excess grease is relieved to the external environment. The grease relief insert is located to in a portion of the dust boot experiencing limited or zero movement.

A flexible tube includes a bellows tube, an interlock tube placed inside the bellows tube, and upstream-side and downstream-side joint pipes coupled to opposite ends of the bellows tube. Diameters of fixing end portions located at opposite ends of the interlock tube are made larger than a diameter at a middle portion of the interlock tube, extension portions of the upstream-side and downstream-side joint pipes are fitted and fixed to inner peripheral surfaces of the fixing end portions of the interlock tube, and a depth of each of valley portions of a bellows portion of the bellows tube located over the fixing end portions is smaller than a depth of other valley portions of the bellows portion. Accordingly, it is possible to achieve the downsizing of the flexible tube that is connected to an exhaust system being continuous with an engine to dampen vibrations in the axial direction of the exhaust system.

An attachment for a handheld appliance, the attachment having a first end for connection to the appliance and a second end, a first wall extending from the first end towards the second end and defining a fluid flow path through the attachment, a second wall extending from the second end towards the first end about the first wall and defining a second fluid flow path extending between the first wall and the second wall. The first end of the appliance may be substantially circular. The fluid flow path may have a fluid inlet that may be annular at the first end. The fluid inlet may be defined by the first wall and an inner wall extending around and at least partially along the first wall. The inner wall may be substantially equidistant from the first wall around the fluid inlet. A hair care appliance comprises such as attachment.

A compensation system for use with a divided pipe having a pair of open ends and being supported at first and second spaced apart points which are moveable relative to one another. A loop member attaches to the open ends of the pipe and is supported by a support system. The loop member includes a bend causing the loop member to extend away from the pipe, the loop member being flexible enough to accommodate a movement between the open ends of the pipe. The support system includes a flexible support having a first end secured to move with the first point and a second end secured move with the second point. Also, a support connection is provided at the loop member for engagement by the flexible support between the two ends to permit movement of the loop member relative to the pipe, the support connection permitting movement of the flexible support relative to the tubing.

A decoupling sleeve for mounting in a motor vehicle exhaust pipe (LE), the sleeve (5) comprising in particular a mechanical portion (10) having two rigid end zones (15) for connection to the exhaust pipe (LE), and a sealing portion (11) that is thermally insulated from the inside by an insulation portion (12) and that extends over substantially the entire length of the mechanical portion (10) of the sleeve, the sleeve being characterized in that the sealing portion (11) comprises a central zone (22) formed by a layer or wall (24) made of a material that is flexible and that withstands temperature, and two rigid end zones (23) respectively connected to two end zones (15) of the mechanical portion (10), the sealing portion (11) forming a covering that is continuous, closed, and leakproof.

An flexible coupling is shown for an insulated piping system of the type used to convey steam and other high temperature fluids. The coupling uses a flexible bellows and additional insulating and joining components to couple conventional lengths of insulated pipe. The bellows arrangement compensates for any relative movement of the inner fluid conveying pipes with respect to the outer layers of insulating material and outer jacket in order to protect the integrity of the assembly and prevent the intrusion of water or other contaminants which could lead to corrosion or early failure of the piping system.

A quick connect and quick disconnect plumbing apparatus that is configured to interconnect a first device and a second device. The plumbing apparatus comprises a union and a tee. The union has first and second ends. A first connecting means at the first end of the union is provided for connecting the union to the first device. The tee has first and second ends. The second end of the union is operatively connected to the first end of the tee. A second connecting means at the second end of the tee is provided for connecting the tee to the second device. The tee is provided with a branch for connecting the plumbing apparatus to a third device. A passage formed in the union and tee permits fluid to flow from the first end of the union to the second end of the tee and through the branch.

A reinforced pipe fitting has a body with a cylindrical first section and a cylindrical second section. The first section has a first longitudinal axis and the second section has a second longitudinal axis. The side walls of the first section intersect the side walls of the second section at a crotch point disposed within the plane defined by the first and second longitudinal axes. The first section defines a first section crotch area pipe stop having a proximal portion disposed proximate to the crotch point and a distal portion disposed opposite the proximal portion. The average thickness of the proximal portion disposed 15° to either side of the plane defined by the first and second longitudinal axes is greater by about 15% than the average thickness of the distal portion disposed 15° to either side of the plane defined by the first and second longitudinal axes.

The present invention is a device for fluid movement and method of making the same. The device has a core element comprised of a preformed barbed fitting having two or more barbed extensions. Each extension has a central bore connected to the central bores of the other extensions so as to provide fluid communications between them. A tube having a central bore is fitted over the barb of each extension. A molded housing is formed over the fitting and tubes to form the device

A plug-in coupling for removably interconnecting a first structural member and a second structural member comprises a resiliently deformable female coupling part adapted to be inserted into a socket at the first structural member such that it is retained therein. The female coupling part comprises a ball-shaped cup, an intermediate annular wall integral with said ball-shaped cup and serving as a guide portion, and a tubular external wall integral with said annular intermediate wall. The external wall surrounds at least a part of the ball-shaped cup in spaced relation thereto and engages a peripheral wall of the socket when the female coupling part is inserted into the socket. A male coupling part comprises a ball-shaped head and a fixing portion for securing the male coupling part to the second structural member. The intermediate annular wall of the female coupling part is of an undulated shape at least in a certain area thereof.

A sprayer for attachment to the spout of a faucet. The sprayer comprises a coupling, a spray head through which fluid may be directed for expulsion and a neck portion. The coupling releasably secures the sprayer to the spout of a faucet. The neck portion connects the coupling to the spray head and includes a passageway permitting the flow of fluid from the spout of the faucet to the spray head. The neck portion is flexibly resilient and permits the spray head to be displaced from a rest position where it is generally aligned with the longitudinal axis of the sprayer to a deflected position where it is deflected from its rest position. The resiliency of the neck portion causes the spray head to be normally biased toward its rest position. The neck portion further includes a deflection limiter preventing the spray head from being deflected more than a pre-determined amount from the longitudinal axis of the sprayer.

Coupling mechanisms for connecting a plurality of pipes are provided. The coupling mechanisms may include a first portion including a first wall having a substantially arcuate cross-sectional shape and defining a first channel, a second portion including a second wall having a substantially arcuate cross-sectional shape and defining a second channel, and a hinge portion connecting together the first portion and the second portion. The first portion and second portion may be configured to pivot about the hinge portion. In an open configuration of a coupling mechanism, the first portion may be laterally adjacent to the second portion. In a closed configuration of a coupling mechanism, the first portion and the second portion may be folded together about the hinge portion to form a first lumen encased by the first wall and the second wall.

The invention relates to an expansion pipe for blasting and a blasting method of the expansion pipe, and belongs to the technical field of mining. The expansion pipe comprises a main pipe and a branch pipe, wherein a first plug is arranged at the head end part of the expansion pipe, a second plug is arranged at the tail end part of the expansion pipe, and the branch pipe is fixed to the inner part of the main pipe through the first plug; a gasification agent is put in the branch pipe, an electric starter mounted on the first plug is arranged at the inner part of the branch pipe, and a sealing plug is arranged at the other end of the branch pipe; a connecting pipe is also arranged at the head part of the main pipe, one end of the connecting pipe is connected with an air source or a water source, and the other end of the connecting pipe penetrates through the first plug and communicates with an inner cavity of the main pipe. The blasting method comprises the following steps: when the expansion pipe is used, fixing a group of the expansion pipes end to end through fixing components in a connecting manner; then punching a hole in a blasting point; then putting the connected and fixed expansion pipe group into the hole; sealing the opening of the hole with cement; and finally starting the electric starter through a remote controller outside the dangerous range. The gasification agent is ignited by the electric starter, so that water in the main pipe is gasified, or air in the main pipe is expanded, and the expansion pipe is blasted.

An irrigation pipe with holes is provided. The pipe is, at least in the area of each hole, multilayered. At least top and bottom layers of the pipe are made of a water-repellant material, and an inner layer of the pipe is made of a porous material. The hole is defined by a cut surface of the pipe wall. The cut surface comprises a seal, which covers at least the inner layer. Each layer may be bonded to adjacent layers.

The conduit (5) includes a rotary fitting (11), and two segments (18, 19) elbow-connected to each other and each having an articulated mechanism (23, 24) including a pair of U-section bars (26, 27) connected to each other in the form of an articulated parallelogram by means of two articulated elements (37, 44; 44, 51). A spiral compression spring (35, 36) is housed between each pair of bars (26, 27), and is compressed between a disk (55), integral with one of the bars (26, 27), and a flange (64) sliding along a threaded rod (62). The flange (64) is locked on the rod (62) by means of a nut (67), and the rod (62) is connected to a lever member (69) pivoting on one of the articulated elements (37, 44) so as to adjust the action of the spring (35, 36) as a function of the angular position of the relative segment (18, 19) with respect to the articulated element (37, 44).

A support system for a flexible pipe loop installed in a pipe run extending along a pipe run axis. The loop includes at least a pair of pipe run elbows, a pair of flexible tube members, and at least one loop elbow having first and second open ends, and an inner bend. Each pipe run elbow connects the pipe run to one end of a respective tube member. The loop elbow's inner bend is disposed towards the pipe run. The loop elbow has a centerline which is displaced away from the pipe run axis. The support system comprises a hanger rod having a first end operatively configured to attach to the loop elbow at a point which is closer to the pipe run axis than the centerline of the loop elbow at the centerline's furthest distance from the pipe run axis.

An exhaust pipe assembly for a multi-cylinder internal combustion engine is made up of a plurality of exhaust pipes made of steel whose upstream ends are connected to a flange provided for connection to a cylinder head, a collecting case to which downstream ends of the exhaust pipes are connected, and a coupling flange interposed between the exhaust pipes and the collecting case. The coupling flange is made of a thin steel plate and has upward burred portions which are circular in shape and into which respective downstream ends of the exhaust pipes are separately inserted for welding with the burred portions, and a downward bent portion whose peripheral edge portion is fitted onto an upper outside end portion of the collecting case for welding with the bent portion.