719results about How to "Prevent liquid leakage" patented technology

Methods and apparatus for treating disorders of the ear, nose, throat or paranasal sinuses, including methods and apparatus for dilating ostia, passageways and other anatomical structures, endoscopic methods and apparatus for endoscopic visualization of structures within the ear, nose, throat or paranasal sinuses, navigation devices for use in conjunction with image guidance or navigation system and hand held devices having pistol type grips and other handpieces.

An insertion assisting tool for an endoscope into which an insertion section of the endoscope is inserted from a base end portion side, comprising: a fluid sealing device which seals a space between a base end part of the insertion assisting tool and the endoscope insertion section, the space being formed while the insertion section of the endoscope is inserted into the base end portion side.

A vane cluster for a turbine engine compressor or turbine includes a shroud 12 with a nonlinear slot 26 extending therethrough to divide the shroud into thermally independent shroud segments 24. The slot is bordered by matching nonlinear surfaces 28 that are easy and inexpensive to produce with conventional wire EDM equipment. The nonlinear profile of the slots effectively resists fluid leakage.

The sides of a touch panel are entirely covered with and sealed in an outer package. The touch panel includes a transparent insulating liquid that is sealed in a space formed by adhering an upper electrode film and a lower electrode body at edges thereof. The transparent insulating liquid transparently shows or exposes at least an operation area of the touch panel.

Systems, including methods and apparatus, for dispensing biological fluids, such as allergens.

An insertion assisting tool for an endoscope into which an insertion section of the endoscope is inserted from a base end portion side, comprising:a fluid sealing device which seals a space between a base end part of the insertion assisting tool and the endoscope insertion section, the space being formed while the insertion section of the endoscope is inserted into the base end portion side.

Systems, including methods and apparatus, for dispensing biological fluids, such as allergens.

A hydraulic circuit has a rotary type pump comprising a rotor rotating with a driving shaft and a casing which holds the rotor and the driving shaft. The casing further comprises an inlet port through which fluid is introduced to spaces formed by the rotor, an outlet port through which fluid is discharged from the spaces, and a hydraulic path for leading fluid from clearance around said driving shaft to the outside of the casing. A reservoir is provided to store fluid coming through the hydraulic path. A return conduit is disposed between the reservoir and an upstream side conduit connected to the inlet port in order that fluid stored in the reservoir is returned to the upstream side conduit. In the return conduit, a check valve is disposed to prevent the reverse flow of fluid from the upstream side conduit to the reservoir.

This invention relates to an improved pouring spout of the type of ones which are detachably connected to a filling container for transferring liquid in a receiving container. These kind of pouring spout include an inlet tube for receiving liquid from the filling container, and an outlet tube telescopically mounted to slide onto the inlet tube for guiding liquid therefrom into the receiving container. The spout also comprises a liquid valve which opens and closes automatically upon sliding of the outlet tube. The current invention further comprises an air passage and an air valve for regulating an air flow inside the spout from the receiving container into the receiving container, such that the flow of liquid inside the spout stops automatically when the receiving container is full, thereby avoiding spillage of liquid. The pouring spout of the invention also resolve the problem of emanations related to the transfer of dangerous volatile and highly inflammable liquid.

Systems and methods for soft tissue to bone repairs, without knot tying. The soft tissue repair includes the steps of (i) securing first and second knotless fixation devices in bone, wherein the first fixation device is provided with a first loop and a first set of tails extending therefrom, and wherein the second fixation device is provided with a second loop and a second set of tails extending therefrom; (ii) passing one tail of the first fixation device through the second loop of the second fixation device; (iii) passing one tail of the second fixation device through the first loop of the first fixation device; and (iv) securing the first set of tails with a third fixation device and the second set of tails with a fourth fixation device.

Systems, including methods and apparatus, for dispensing biological fluids, such as allergens.

A battery module is provided which includes multiple rechargeable batteries coupled together. The battery module includes multiple prismatic cell cases having short lateral walls and long lateral walls arranged side by side. Adjacent short lateral walls are integral with each other. The battery module includes holes extending through the short lateral walls of the cell cases at upper edge portions. The battery module also includes a pair of frame fittings that have base ends and protruding portions in each of the cell cases for connecting two adjacent cell cases. The protruding portions of the pair of frame fittings extend into the through holes in the upper edge portions of the short lateral walls of the cell cases from both sides and are welded together. Positive and negative electrode collector plates in the cell cases are respectively attached to the base ends of the frame fittings. End frame fittings that have base ends and protruding portions for cell cases are located at both outer ends of the rechargeable battery for connecting the cell cases to outside terminals. Connection terminals that have protruding portions are connected to the end frame fittings at both outer ends of the rechargeable battery.

A fluidic insert that receives fluid under pressure from a fluid inlet tube and generates a specified spatial distribution of the fluid exiting the insert includes: (1) a body member having top, bottom, front and rear outer surfaces, (2) top and bottom fluidic circuits located, respectively, at least partially within the member's top and bottom surfaces, wherein each of these circuits has at least one power nozzle, an interaction chamber, and an outlet whose exit lies within the member front surface, (3) the bottom fluidic circuit having a portion of its surface area located upstream of the power nozzle and adapted so that it can mate with a fluid inlet tube that supplies fluid to the insert, and (4) an inter-circuit flow passage that allows fluid to flow from the bottom fluid circuit to the top fluid circuit, the bottom end of this passage located such that it is downstream of the point where the inlet tube mates with the bottom circuit and upstream of the bottom circuit's power nozzle, with the top end of this passage located upstream of the top circuit's power nozzle.

A liquid container has a movable member which defines a liquid containing space and which is displaced as the liquid is supplied, a valve for allowing a gas to be introduced into the containing space from the outside and for preventing the liquid from being extracted from the containing space to the outside, and an introduction channel for coupling the valve and the containing space to guide the introduced gas into the containing space. An intake port of the introduction channel located on the containing space side is positioned in an upper part of the containing space in an orientation in use. A negative pressure is kept substantially constant to consume the liquid completely. Since the air introduction for keeping the negative pressure at an adequate value is carried out in a region in a gaseous phase in the container, no leakage of ink occurs, and air is reliably introduced.

A sheath is sized and configured to receive an endoscope. The sheath is provided with a housing having a proximally facing opening with a U-shaped notch. The endoscope has at the proximal end a right-angle light post which and is received closely within the U-shaped notch at the proximal opening of the sheath housing. A locking mechanism is provided including a pivotable latch having a distal end configured to be received within a notch formed on the endoscope housing distal to and diametrically opposed from the light post. The latch includes a spring tending to bias the distal portion thereof into engagement with the notch in the endoscope housing. A resilient O-ring is provided at the distal end of a recess in the sheath housing. A shoulder on the distal end of the proximal portion of the endoscope compresses the O-ring when the latch is engaged.

The endcover assembly for a combustor includes an endcover having an aperture, an insert disposed in the stepped bore opening through an internal face of the endcover, a fuel cartridge extending through the insert and aperture and a seal cover on the external face of the endcover. Seal cover / endcover annular seals are disposed in registering axial cavities to seal against fluid leakage externally of the endcover assembly. Generally C-shaped and W-shaped seals are disposed in the cavities between the stepped shoulders of the insert and aperture to seal against leakage through the internal face of the endcover. The seals maintain sealing engagement during assembly and thermal distortion during turbine usage.

An articulated vehicle with a working device has a first frame having a prime mover mounted thereon and supporting a first transaxle apparatus. The first transaxle apparatus includes an input shalt receiving power from the prime mover, a pair of first axles, and a hydrostatic transmission. The hydrostatic transmission comprises a variable hydraulic pump, a first hydraulic motor fluidly connected to the hydraulic pump via a fluid passage, and a housing with a port fluidly connected to the fluid passage. The second transaxle apparatus includes a pair of second axles having different lengths and a second hydraulic motor. The second hydraulic motor is fluidly connected to the port. Proximal ends of the first and second frames with respect to the vehicle are coupled to each other so that the first and second flames are rotatable around a vertical axis relative to each other when steered.

The present invention relates to a method of fabricating a microfluidic device including at least two substrates provided with a fluid channel, comprising the steps of: a) etching at least a channel and one or more fluid ports in a first and / or a second substrate; b) depositing a first layer on a surface of the second substrate; c) partially removing the first layer in accordance with a predefined geometry; d) depositing a second layer on top of the first layer and the substrate surface; e) planarizing the second layer so as to smooth the upper surface thereof; f) aligning the first and second substrate; and g) bonding the first substrate on the planarized second layer of the second substrate.

A catheter drive system, comprising: an inner tube adapted for inserting into a human body; an outer tube configured to slidably and snugly engage said inner tube, outside of a human body; and a pushing mechanism adapted to apply a pushing force to said inner tube less than 100 mm from an end thereof, such that said inner tube can extend at least 200 mm.

To provide a flow cell that is free from liquid leakage and excels in chemical resistance. There is provided a preferred form of flow cell comprising flat-plate glass substrate (3); adherent fluororesin sheet (5) having a groove as flow channel (7) made by cutting machining; and glass substrate (1) as lid member furnished with through-holes (9, 11) as fluid inlet and outlet at positions corresponding to both end portions of the groove. The fluororesin sheet (5) is interposed between the glass substrates (1, 3) and, while heating at a temperature not lower than the melting point of the fluororesin sheet (5), pressurized so that the glass substrates (1, 3) are bonded together by the fluororesin sheet (5) per se. Flow channel member (17) is constructed by the glass substrate (3) and, bonded thereonto, the fluororesin sheet (5).

The present invention is a hair coater which appropriately delivers an paint liquid without liquid leakage of the paint liquid, and which, in addition, can assure sufficient paint performance, preventing the paint liquid or the like from being directly applied to the scalp, and the hair coater, which while combing hair by a comber made up of comb members and a multiple number of porous coating elements arranged comb-like in a row along the comb members, is able to apply the paint liquid in a container being attached to the hair by means of the porous coating elements, and is characterized in that the paint liquid retention force of the porous coating elements falls within a range of 120 to 250 mm. The present invention also includes a coater-equipped cosmetic container with the aforementioned hair coater.

A filter cartridge and spool valve manifold assembly includes a filter cartridge and a spool valve manifold. The filter cartridge includes a filter element and inlet / outlet portion in fluid communication with the filter element. The inlet / outlet portion has a cartridge inlet port and a cartridge outlet port. The spool valve manifold includes a housing and a body. The housing has a housing inlet port and a housing outlet port adapted for fluid communication with a fluid supply system. The body is located within the housing and configured to rotate around a first axis relative to the housing. The inlet / outlet portion of the filter cartridge is fluidly coupled to the body via insertion of the inlet / outlet portion into the body in a direction perpendicular to the first axis.

A rotary shaft monitoring seal system includes a seal housing; a seal assembly in the housing for sealingly engaging a rotary shaft to prevent fluid leakage between the shaft and the housing; a monitoring port in the housing; and a detector assembly mounted in the port for sensing conditions in the vicinity of the seal assembly.

The invention relates to a method for the production of at least one longitudinal section of a catheter, wherein the method comprises the winding of film, and the film is provided in the form of strips, the film strip is wound in the manner of a screw such that the side edges of the film strip extending in the manner of a thread overlap the film strip, and further a bonded connection is created in the overlapping region such that the longitudinal section has a closed and at least fluid-tight surface. The invention further relates to a catheter produced according to the method, and a device for carrying out the method.

A vaporizer device of cotton-free e-cigarette, comprising: an outer sleeve, a supporting frame arranged inside the outer sleeve, a vaporizer unit fixed into the supporting frame, a filter piece and a liquid percolation piece sequentially connected to one end of the supporting frame, and a fixation seat connected to other end of the supporting frame. A backflow groove is made inside the supporting frame to prevent leakage caused by the backflow of residual liquid. The filter piece is made of heat-resisting material. The liquid percolation piece is connected at one end with a liquid storage cup by snap joints. Another end of the filter piece keeps a safe distance away from the vaporizer unit to avoid being burned. The liquid storage cup and the outer sleeve are assembled to form a slit therebetween to prevent the backflow of residual liquid.

The present invention relates to a method of fabricating a microfluidic device including at least two substrates provided with a fluid channel, comprising the steps of:a) etching at least a channel and one or more fluid ports in a first and / or a second substrate;b) depositing a first layer on a surface of the second substrate;c) partially removing the first layer in accordance with a predefined geometry;d) depositing a second layer on top of the first layer and the substrate surface;e) planarizing the second layer so as to smooth the upper surface thereof;f) aligning the first and second substrate;g) bonding the first substrate on the planarized second layer of the second substrate.