Abstract: A fluid flow field of a separator of a fuel cell stack allows a fluid to flow in a separator surface direction. A rubber seal member provides a seal between the fluid passage and the fluid flow field. The tunnel portion intersects the rubber seal member at an intersection. The tunnel portion allows the fluid flow field and the fluid passage to connect to each other. In the rubber seal member, a first portion protrudes from a flat portion in a stacking direction, and a second portion protrudes from a protruding end surface of a tunnel portion in the stacking direction.

Abstract: Embodiments provide a fluid detection device including a casing connectable to a tube filled with water and allows the water to flow to a hollow inner part; a partition wall deformable so that the hollow inner part is divided into a fluid chamber filled with the water and an air chamber opened to the atmosphere; a slide tip disposed inside the fluid chamber; and a tip sensor disposed outside the casing. According to at least one embodiment, a slide holding part which holds the slide tip slidably forward and backward is formed inside the fluid chamber, an opening part is formed in the air chamber, a magnet is disposed in the casing, the slide tip includes a magnet provided at a position facing the magnet and repelling the magnet.

Abstract: Embodiments provide a fluid detection device including a casing connectable to a tube filled with water and allows the water to flow to a hollow inner part; a partition wall deformable so that the hollow inner part is divided into a fluid chamber filled with the water and an air chamber opened to the atmosphere; a slide tip disposed inside the fluid chamber; and a tip sensor disposed outside the casing. According to at least one embodiment, a slide holding part which holds the slide tip slidably forward and backward is formed inside the fluid chamber, an opening part is formed in the air chamber, a magnet is disposed in the casing, the slide tip includes a magnet provided at a position facing the magnet and repelling the magnet.

Abstract: A hermetically sealed battery is provided with a sealing member for air-tightly sealing the through-hole of a battery case from the outside. The sealing member has: a covering member secured to the battery case from the outside; an insertion portion inserted into the through-hole; an annular pressure contact portion in air-tight pressure contact with the hole surrounding portion of the battery case; and a connecting portion disposed between the insertion portion and the annular pressure contact portion so as to be integral with the insertion portion and the annular pressure contact portion. The connecting portion is provided with an annular groove surrounding the insertion portion.

Abstract: A rotary valve that includes a rotor, and a casing including a rotor accommodating space that accommodates the rotor. A rotor opening which is a passage of cooling water is provided in the rotor. Openings which communicate with the rotor opening are provided at positions of an inner circumferential surface of the rotor accommodating space which oppose an outer circumferential surface of the rotor. Seal members are provided to extend from the openings toward the rotor. A tip end abutting portion of the seal member which abuts on the rotor includes an inwardly curved portion. The inwardly curved portion functions as a seal and also functions as a spring. The inwardly curved portion is narrowed inwardly toward a tip end side, and is curved to be folded back.

Abstract: A sealed battery includes an electrode body; a battery case housing the electrode body and having an open surface; a lid member closing the case; a liquid inlet formed penetrating through the lid member; and a sealing member. The sealing member has: a metal sealing plate welded to the lid member to cover and seal the liquid inlet; and an annular movable portion displaceable between a contact position contacting the entire circumference of the inlet and a non-contact position not contacting at least a portion of the inlet. The movable portion is displaced to the non-contact position when the pressure of the inside region of the battery case sealed by the movable portion in the contact position is increased beyond a limit value with respect to the pressure of the outside region opposite from the inside region with respect to the movable portion.

Abstract: A sealing member includes a metal lid, an elastic shaft, a supporting protrusion, and a tip portion. The tip portion has an engaging portion larger in diameter than a liquid inlet. The shaft portion has a diameter smaller than that of the liquid inlet and a shaft length longer than the thickness of the circumferential edge portion of the liquid inlet. A sealed battery manufacturing method includes: a temporary sealing step of pressure-contacting the engaging portion to the circumferential edge portion; a degassing step of forming a communication path by pushing the tip portion to such an extent that the lid part does not make contact with a battery case and the tip portion is apart from the circumferential edge portion; and a final sealing step of pressing the tip portion until the lid part makes contact with the battery case, thereby sealing the liquid inlet.

Abstract: A sealing member includes a metal lid, an elastic shaft, a supporting protrusion, and a tip portion. The tip portion has an engaging portion larger in diameter than a liquid inlet. The shaft portion has a diameter smaller than that of the liquid inlet and a shaft length longer than the thickness of the circumferential edge portion of the liquid inlet. A sealed battery manufacturing method includes: a temporary sealing step of pressure-contacting the engaging portion to the circumferential edge portion; a degassing step of forming a communication path by pushing the tip portion to such an extent that the lid part does not make contact with a battery case and the tip portion is apart from the circumferential edge portion; and a final sealing step of pressing the tip portion until the lid part makes contact with the battery case, thereby sealing the liquid inlet.

Abstract: A rotary valve that includes a rotor, and a casing including a rotor accommodating space that accommodates the rotor. A rotor opening which is a passage of cooling water is provided in the rotor. Openings which communicate with the rotor opening are provided at positions of an inner circumferential surface of the rotor accommodating space which oppose an outer circumferential surface of the rotor. Seal members are provided to extend from the openings toward the rotor. A tip end abutting portion of the seal member which abuts on the rotor includes an inwardly curved portion. The inwardly curved portion functions as a seal and also functions as a spring. The inwardly curved portion is narrowed inwardly toward a tip end side, and is curved to be folded back.

Abstract: The present invention provides an air intake noise reducing device, an internal combustion engine fitted with the air intake noise reducing device and a structure for fitting the air intake noise reducing device to the internal combustion engine. The air intake noise reducing device comprises a gasket (2) comprising a ring member (2a) held by connecting surfaces of an air intake passage (100) and protrusion holding portions (2b) extending from the ring member (2a) toward a center of the air intake passage (100); and a net member (3) comprising a net (3a) for rectifying intake air and connecting protrusions (3b) extending outward from the net (3). The connecting protrusions (3b) are held in the protruding holding portions (2b) such that the ring member (3) is firmly secured to the gasket (3). The air intake noise reducing device constituted by in the above-mentioned manner can reduce assembly man-hours without deteriorating a sealing property of the air passage.

Abstract: The invention provides a novel dual-membered suctional gasket which has a reliable function to fit and fix the gasket to an object to be sealed, and also provides an effective suction effect and air venting function. For that purpose, the gasket which has a function to prevent fluid from leaking when compressed, comprises an inner sealing member 1 and outer sealing member 2 arranged on a surface perpendicular to a compressing direction; and a plurality of connecting members 3 for connecting and fixing the inner sealing member 1 and the outer sealing member 2 together. Suction cup structures are formed, when a proper amount of air closed between the inner sealing member and the outer sealing member is vented from the inner sealing member, the outer sealing member or the both sealing members by compressing the dual-membered gasket.

Abstract: A vehicular brake system component is used in a brake system of a vehicle. The brake system component includes a sealable bonded component having a metal member and an elastic rubber member bonded to each other and located so as to touch a brake fluid.

Abstract: The invention provides a novel dual-membered suctional gasket which has a reliable function to fit and fix the gasket to an object to be sealed, and also provides an effective suction effect and air venting function. For that purpose, the gasket which has a function to prevent fluid from leaking when compressed, comprises an inner sealing member 1 and outer sealing member 2 arranged on a surface perpendicular to a compressing direction; and a plurality of connecting members 3 for connecting and fixing the inner sealing member 1 and the outer sealing member 2 together. Suction cup structures are formed, when a proper amount of air closed between the inner sealing member and the outer sealing member is vented from the inner sealing member, the outer sealing member or the both sealing members by compressing the dual-membered gasket.

Abstract: A gasket is capable of providing an excellent slidabiity and holding its sealability without applying lubricant and a gasket that can prevent a resin film from being peeled off of a gasket body and prevent the generation of a molding defect such as pinholes. The gasket can be installed slidably in a outer tube of a syringe, including a gasket body and a resin film formed of a material lower in coefficient of friction than a material of the gasket body, which covers at least an outer periphery of the gasket body, in which when a surface roughness of the resin film on the outer tube side is defined as Ra1 and a surface roughness of the resin film on the gasket body side is defined as Ra2, a relationship of 1.5 Ra1?Ra2 is satisfied.

Abstract: The invention provides an electric double-layer capacitor sealed up by a flexible casing material that ensures a release of pressure upon an increasing internal pressure. A pressure release valve (1) is attached to the flexible casing material. The pressure release valve (1) comprises a collar airtightly joined to the flexible casing material and a cylindrical portion (3) connected to the collar, extending out of a capacitor enclosure. The cylindrical portion (3) comprises an end part (5) having a self-closing passage (6) that is opening to the outside only upon a pressure release and is closed up in a normal state, and a channel (4) in communication with the interior of the capacitor enclosure.

Abstract: A hard disk drive unit constituted in the following manner can prevent leaks of gas caused by a deformed gasket assembly, can enhance operational performances of the hard disk drive unit in accordance with using purposes and can be assembled more easily. A monolithically constituted gasket assembly with a cover for fitting to a case of the hard disk drive unit comprises: a cover plate constituting the cover made of aluminum, plastics and the like having piercing holes at predetermined positions; a gasket fitted to the cover plate via the piercing holes; and a ring constituting the cover arranged around an outer periphery of the gasket. A gap formed between the cover plate and the ring, and a gap formed between the cover plate and the case for the hard disk drive unit are sealed by the gasket.

Abstract: A vehicular brake system component is used in a brake system of a vehicle. The brake system component includes a sealable bonded component having a metal member and an elastic rubber member bonded to each other and located so as to touch a brake fluid.

Abstract: A hard disk drive unit constituted in the following manner can prevent leaks of gas caused by a deformed gasket assembly, can enhance operational performances of the hard disk drive unit in accordance with using purposes and can be assembled more easily. A monolithically constituted gasket assembly with a cover for fitting to a case of the hard disk drive unit comprises: a cover plate constituting the cover made of aluminum, plastics and the like having piercing holes at predetermined positions; a gasket fitted to the cover plate via the piercing holes; and a ring constituting the cover arranged around an outer periphery of the gasket. A gap formed between the cover plate and the ring, and a gap formed between the cover plate and the case for the hard disk drive unit are sealed by the gasket.

Abstract: The purpose of the present invention is to provide a cover for a hard disk drive which can prevent the outflow of a damping resin material and the loosening of a screw fixing the cover to a storage-enclosing case.

Abstract: A purpose of the invention is to provide a gasket in use for HDD unit wherein a spatial continuity conducted from an interior of an HDD unit to an external open ambient for generating a leakage is prevented as well as an integrated manufacturing of a cover and a gasket member into a single constituent that has so far been separated into two constituents in a conventional structure, thereby not only reducing a number of assembly steps but also rendering manufacturing procedures easier that are attained by the present constitution, wherein: the gasket formed of an elastic member 3 is embedded in a base cover 1 formed of a stainless steel and included in a through-hole 2, which is opened on a desired portion of the base cover and penetrates from an internal surface to an external surface of the base cover, to be protruded further internally from the internal surface of the base cover as well as to be protruded further externally from the external surface of the base cover, thereby to seal an entire interior of t