[특허]Check valve for fluid bladders

Check valve for fluid bladders 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16K-015/16
출원번호	US-0401156 (1995-03-09)
발명자 / 주소	Pekar Robert W. (Florence MA) Wiater Stephen J. (Southwick MA) Potter Earl J. (Ludlow MA)
출원인 / 주소	Dielectrics Industries (Chicopee MA 02)
인용정보	피인용 횟수 : 79 인용 특허 : 0

초록 ▼

A check valve provides a one-way fluid passage from without to within a fluid bladder formed by a pair of plastic sheets sealed together about their periphery. The check valve is formed by a pair of superimposed films of thermoplastic material, generally equal in length, thermally bonded together at predetermined areas to define the fluid passage throughout the length of the valve. The inlet end of the valve has a V-shape edge with the apex pointing in a direction opposite the one-way fluid flow. Each of the films, adjacent the V-shape edge of inlet end, is sealed to one of the outer sheets where the valve enters the bladder by a seal line of similar V-shape. Each of the films has a high-gloss, cohesive inner surface and a matted, non-cohesive outer surface. At least one of the films includes, on its inner surface, a release material disposed at a location which corresponds to the area at the inlet end of the fluid passage through the peripheral seal of the bladder to prevent the fusing together of the films at that area of the seal. The terminal ends of the superimposed films extend in surface-to-surface relation into the bladder to provide a “duck-bill”type check valve.

대표청구항 ▼

Combination fluid pump and inflatable bladder comprising an open-cell, elastomeric foam disposed between an upper and a lower sheet of synthetic plastic material sealed about the periphery thereof and the perimeter of the foam to form both a pumping chamber and the inflatable bladder, the foam being inherently compressible and expansible to absorb and expel fluid from cells thereof, an inlet valve into the pumping chamber provided by a hole through one of the plastic sheets opening at generally the central portion of the foam, an outlet check valve extending through the perimeter seal of the foam communicating with the interior of the inflatable bladder, the outlet check valve comprises two layers of plastic film sealed together at their side edges and sealed to opposed inner surfaces of the sheets and having a channel for permitting the one-way flow of fluid from the pumping chamber into the bladder contiguous thereto, said valve having an inlet end having a chevron edge with the apex end thereof disposed toward said inlet end and outer surfaces adjacent the chevron edge of the inlet end of the valve fused to opposed inner surfaces of the sheets in said passage and a barrier material disposed between said film to prevent the heat-sealing together of the film layers at the location where the check valve extends through said perimeter seal.

이 특허를 인용한 특허 (79)

Gishifu, Amy E.; Langvin, Elizabeth; Molyneux, James; Peyton, Lee D.; Ransom, Ty A.; Reynolds, Nicola J.; Swigart, John F., Adjustable bladder system for an article of footwear.
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Gishifu, Amy E.; Langvin, Elizabeth; Molyneux, James; Peyton, Lee D.; Ransom, Ty A.; Reynolds, Nicola J.; Swigart, John F., Adjustable bladder system for an article of footwear.
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Gishifu, Amy E.; Langvin, Elizabeth; Molyneux, James; Peyton, Lee D.; Ransom, Ty A.; Reynolds, Nicola J.; Swigart, John F., Adjustable bladder system for an article of footwear.
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Gishifu, Amy E.; Langvin, Elizabeth; Molyneux, James; Peyton, Lee D.; Ransom, Ty A.; Reynolds, Nicola J.; Swigart, John F., Adjustable bladder system for an article of footwear.
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Gishifu, Amy E.; Langvin, Elizabeth; Molyneux, James; Peyton, Lee D.; Ransom, Ty A.; Reynolds, Nicola J.; Swigart, John F., Adjustable bladder system with external valve for an article of footwear.
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Gishifu, Amy E.; Langvin, Elizabeth; Molyneux, James; Peyton, Lee D.; Ransom, Ty A.; Reynolds, Nicola J.; Swigart, John F., Adjustable bladder system with external valve for an article of footwear.
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Gishifu, Amy E.; Langvin, Elizabeth; Molyneux, James; Peyton, Lee D.; Ransom, Ty A.; Reynolds, Nicola J.; Swigart, John F., Adjustable bladder system with external valve for an article of footwear.
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Langvin, Elizabeth; Molyneux, James; Peyton, Lee D.; Ransom, Ty A.; Reynolds, Nicola J.; Weast, Aaron B., Adjustable multi-bladder system for an article of footwear.
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Langvin, Elizabeth; Molyneux, James; Peyton, Lee D.; Ransom, Ty A.; Reynolds, Nicola J.; Weast, Aaron B., Adjustable multi-bladder system for an article of footwear.
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Langvin, Elizabeth; Molyneux, James; Peyton, Lee D.; Ransom, Ty A.; Reynolds, Nicola J., Article of footwear with an adaptive fluid system.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Check valve for fluid bladders 원문보기

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Check valve for fluid bladders 원문보기

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이 특허를 인용한 특허 (79)

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