33results about How to "Ensure liquid tightness" patented technology

Disclosed is an electrochemical gas sensor wherein interference errors are minimized. In an electrochemical gas sensor wherein an object gas to be sensed is taken into an electrolyte solution through an air-permeable membrane and an electrical signal corresponding to the concentration of the object gas is output, an air-permeable membrane (4) constituting a working electrode member (4') is made of a kneaded body of a carbon black fine powder and a fluororesin fine powder, and an electrode catalyst layer (13) is formed on a side of the air-permeable membrane (4) which side faces an electrolyte solution (6).

There is disclosed an electrode cartridge for use in a hermetic zinc secondary battery comprising a separator structure including a separator exhibiting hydroxide ion conductivity and water impermeability; a counter member liquid-tightly sealed to the separator structure so as to form an internal space and constituting an open-top water impermeable case together with the separator structure; and an electrode that is accommodated in the internal space of the water impermeable case and is a negative electrode containing zinc and / or zinc oxide or a positive electrode. According to the present invention, there is provided an electrode built-in component that can reliably isolate the positive and negative electrodes from each other with a hydroxide ion conductive separator, in the form of an electrode cartridge that is easy to handle and manufacture and that is more advantageous for assembling a stacked-cell battery, while reducing the number of sealing joints.

A female connector (15) is provided with engaging walls (217) having surfaces which face engaging claws (14) when the female connector (15) is being connected to a male connector (10), and the surfaces include sloped surfaces (222). When the female connector (15) and the male connector (10) become connected together, the engaging claws (14) move up along the sloped surfaces (222) in the direction of sliding of the engaging claws (14) relative to the engaging walls (217). A male connector (30) is provided with engaging claws (34) having surfaces which face engaging walls (417) when a female connector (35) is being connected to the male connector (30), and the surfaces include sloped surfaces (34a). When the female connector (35) and the male connector (30) become connected together, the engaging walls (417) move up along the sloped surfaces (34a) in the direction of sliding of the engaging walls (417) relative to the engaging claws (34).

This medical instrument with attached needle is provided with a needle shaft (2) having a needle tip (2a) capable of piercing a living body and a needle hub (5) for immobilizing and holding the middle of the needle shaft (2) by high frequency welding so that the needle tip (2a) protrudes from one end and the base end (2b) of the needle shaft (2) protrudes from the other end. It also has a seal part (8) configured of an elastic component and provided on the outer circumference of the base end (2b) of the needle shaft (2) so as to be fluid-tight, and a liquid-accommodating part (9) having a liquid chamber capable of accommodating a liquid therein. With the base end (2b) of the needle shaft (2) communicating with the liquid chamber, the seal part (8) is compressed and clamped by the needle hub (5) and the liquid-accommodating part (9).

A first housing includes a wide connection surface and a bearing formed on an edge on one side along the longitudinal direction of the connection surface. A second housing includes a side surface formed to face in a direction intersecting a connecting direction of the first and second housings. A lid is displaceable about a shaft supported by the bearing portion to a closed position where the lid covers the connection surface and an open position where the lid member contacts the side surface. The lid is biased from the open position to the closed position by a biasing member. An outer shape of the lid has a long side arranged along the longitudinal direction of the connection surface and a short side intersecting the long side and shorter than the long side.

This medical instrument with attached needle is provided with a needle shaft (6) with a needle tip capable of piercing a living body and a seal part (5), which is obtained from an elastic part and holds the outer surface of the needle shaft (6) in a fluid-tight manner so that the needle tip (6a) capable of piercing a living body protrudes from one end and the base end (6b) at the end opposite the needle tip (6a) protrudes from the other end. The instrument also has a liquid-accommodating part (3) with a liquid chamber (10) capable of accommodating a liquid therein and a needle-seating part (2) formed on one end of the liquid-accommodating part (3). The seal part (5) is in contact with the inner surface of the needle-seating part (2) and is set within the needle-seating part (2) in a compressed state. The base end (6b) of the needle shaft (6) communicates with the liquid chamber (10).

The present invention is provided with: a detergent tank (117) which is attached to a tank housing case (114); and an automatic liquid detergent feeding device which supplies a liquid detergent in thedetergent tank (117) to a water tub. The detergent tank (117) includes a cylindrical part (123) which ejects the liquid detergent. The automatic liquid detergent feeding device is provided with a detergent-side cylindrical part which connects to the cylindrical part (123). The tank housing case (114) has: an inclined surface (114j) which is formed on a side wall and which is inclined downward toward the detergent-side cylindrical part and the cylindrical part (123); and a hole (114k) which is formed above the inclined surface (114j) and into which water is injected toward the inclined surface(114j). This allows the liquid detergent or the like, adhering to a connection part between the detergent tank (117) and the automatic liquid detergent feeding device, to be washed off with water each time water is supplied.

The present invention provides a filtration device combined with self-priming pump in which a filter replacement work is easy and safe, and removal of air inside of a pump and priming are not necessary. And this filtration device is characterized to provide with a pump unit, which is a valveless-construction self-priming pump without a check valve, including a suction port, a suction chamber, an impeller, a self-priming chamber, a discharge port from an upstream of a channel to a downstream thereof in this order, the suction port and the discharge port being arranged above the level of the suction chamber and the impeller, and a self-priming chamber arranged above the level of the suction port and the discharge port; a filtration unit arranged on a channel between the self-priming chamber and the discharge port and above the level of the self-priming chamber; and a filter arranged inside of the filtration unit and above the level of residual liquid inside of the pump unit at the time of suspending of the pump unit.

There is provided a secondary zinc battery including: a unit cell including; a positive-electrode plate including a positive-electrode active material layer and a positive-electrode collector; a negative-electrode plate including a negative-electrode active material layer containing zinc and a negative-electrode collector; a layered double hydroxide (LDH) separator covering or wrapping around the entire negative-electrode active material layer; and an electrolytic solution. The positive-electrode collector has a positive-electrode collector tab extending from one edge of the positive-electrode active material layer, and the negative-electrode collector has a negative-electrode collector tab extending from the opposite edge of the negative-electrode active material layer and beyond a vertical edge of the LDH separator. The unit cell can thereby collects electricity from the positive-electrode collector tab and the negative-electrode collector tab. The LDH separator has at least two continuous closed edges, provided that an edge, adjacent to the negative-electrode collector tab, of the LDH separator is open.

To provide a flexible double-layer tube excellent in flexibility though its structure is simple, high in joining strength between a tube body inner wall surface and a partition plate, and excellent in the airtightness and liquidtightness of both flow passages. In this double-layer tube, the double flow passages 19 and 20 are formed by partitioning the inside of a tube body 1 by the partition plate 7 by joining both end parts of the soft resin partition plate 7 along the longitudinal direction of the tube to the smooth inner wall surface 8 of the soft resin tube body 1 peripherally reinforced by reinforcement materials 3 and 4 with a hot-melt adhesive agent 15.

The washing machine includes: a detergent tank (117), which is installed in the tank storage box (114); and a liquid agent automatic feeding device, which supplies the liquid agent of the detergent tank (117) to the sink. The detergent tank (117) has a cylinder portion (123) that discharges the liquid agent. The liquid agent automatic injection device includes a detergent-side cylinder connected to the cylinder (123). The tank storage box (114) has an inclined surface (114j) formed on the side wall and inclined downward toward the cylinder part (123) and the detergent side cylinder part, and a hole (114k). 114k) is formed above the inclined surface (114j), and injects water toward the inclined surface (114j). Thereby, the liquid agent etc. adhering to the connection part of the detergent tank (117) and the automatic liquid agent injection device can be washed away with water every time water is supplied.

A syringe barrel includes an barrel main body having a female luer at a distal end of the barrel main body, the female luer being configured such that a male luer is insertable into and connectable to the female luer; and a cap that is detachably attached to the female luer to close an opening of the female luer. The female luer has a female luer-side connector, and the cap is detachably attached to the female luer via the female luer-side connector. The cap includes an insertion part inserted into the female luer, a sealing part that seals the opening of the female luer, and a cap-side connector that is detachably engaged with the female luer-side connector.

The objective of the invention is to provide a structure capable of maintaining lubricant effect of a gear train composed of a sun gear, a planetary gear and a central gear constantly in a long time in a planetary gear type selvage device. In the planetary gear type selvage device, comprising a non-rotating component including an opposite surface relative to a periphery surface formed on a planetsupport along the whole periphery in redial direction of the rotating shaft, and the non-rotating component can not be arranged rotatly; and a accommodation space for accommodating the gear train composed of a a sun gear, a planetary gear and a central gear, which is defined by the planet support and the non-rotating component for accommodating the gear train. Furthermore, to the accommodating space, while a contact-type oil seal is mounted between a rotating driven planet support and a surface relative to the non-rotating component in the radial direction for maintaining liquid sealing, the accommodation space is stored with lubricating oil.

A container stopper having a cap having a peripheral wall engaging around a container neck, and an olive-shaped seal provided with a peripheral annular flange for engagement in a container opening, the inner surface of the olive-shaped seal providing a ribbed wall surface, the ribbed wall surface is defined by a plurality of slots and webs extending longitudinally on the wall of the olivary seal.

A valve-controlled dispensing closure (1), suitable for a container (3) containing a fluid, fits snugly to the neck of the container to ensure liquid-tightness of the container, comprising: a plug body (23), arranged to be inserted into the neck of the container , with a central fluid channel and a peripheral air channel; a double-valve diaphragm (22), made of a flexible elastic material, arranged in a recess provided on the upper part of the plug body (23) to cover the fluid and air channels; the plug cover ( 21), sealing the double valve diaphragm (22) inside the plug body (23), having one or more slots arranged annularly and axially aligned with the air passage of the plug body (23), and having The central fluid channel of the plug body (23) is axially aligned with the central orifice. The double valve diaphragm (22) comprises a first valve section which is a normally closed valve (22d) having a slit-type central orifice (22a) and which seals the central fluid passage of the plug body (23) when in the rest position and is normally closed. The umbrella valve (22b) closes the valve and seals the second valve section of one or more slots of the plug cover (21) when in the rest position.

The present invention provides a plastic cap formed as a highly producible one-piece type cap at the time of molding which becomes a two-piece type cap excellent in sealability and openability at thetime of use in which a small-diameter dispensing opening can be formed. The plastic cap comprises: a cap body (1) that is formed of a top plate section (2) and a skirt section (3), that has a dispensing nozzle (8) formed on the outer surface of the top plate section (2) so as to surround a part to be opened, and that is fitted and fixed to a container mouth part (60); and a top lid (20) which comprises a top surface (21) and a circumferential wall (22) hanging from the outer peripheral edge of the top surface (21). The plastic cap is characterized in that: the top lid (20) has formed thereon aprotrusion section (27) which protrudes downward from an inner surface of the top surface (21) and has an engaging part (28) on an outer surface thereof; and the cap body (1) has formed therein an inner plug (30) which comprises an annular sidewall (31) having an outer diameter that can come into close contact with the inner surface of the dispensing nozzle (8) and a bottom section (32) formed ata lower part of the annular sidewall (31), wherein the inner plug (30) is integrally formed, via a breakable weakened part (10), with the cap body (1) at a position below a seal part of the dispensing nozzle (8) that has an inner diameter that can come into close contact with the inner plug (30), and has an engageable part (33) formed on an inner surface of the annular sidewall (31) that vertically engages with the engaging part (28) of the protrusion section (27).

A first housing includes a wide connection surface and a bearing formed on an edge on one side along the longitudinal direction of the connection surface. A second housing includes a side surface formed to face in a direction intersecting a connecting direction of the first and second housings. A lid is displaceable about a shaft supported by the bearing portion to a closed position where the lid covers the connection surface and an open position where the lid member contacts the side surface. The lid is biased from the open position to the closed position by a biasing member. An outer shape of the lid has a long side arranged along the longitudinal direction of the connection surface and a short side intersecting the long side and shorter than the long side.

In a female connector 15 of the present invention, a surface of an engagement wall 217 facing an engagement tab 14 when the female connector 15 is connected to a male connector 10 includes an inclined surface 222 which the engagement tab 14 mounts in a sliding direction of the engagement tab 14 with respect to the engagement wall 217 during the connection between the female connector 15 and the male connector 10. Further, in a male connector 30 of the present invention, a surface of the engagement tab 34 opposed to the engagement wall 417 when the female connector 35 is connected to the male connector 30 includes an inclined surface 34a which the engagement wall 417 mounts in a sliding direction of the engagement wall 417 with respect to the engagement tab 34 when during the connection between the female connector 35 and the male connector 30 .