[특허]Air pad

Air pad 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61G-007/04 A47C-027/08
출원번호	US-0374079 (1982-05-03)
발명자 / 주소	Flick Roland E. (West Seneca NY) Wortman Ronald D. (West Seneca NY) Fotevski Krstin (Blasdell NY) Whitney John (Dorado Beach PR)
출원인 / 주소	Medisearch PR, Inc. (Guayama PR 03)
인용정보	피인용 횟수 : 100 인용 특허 : 0

초록 ▼

An inflatable air pad, or fluid impervious pad, is provided having three layers, the top and bottom being joined together to form an enclosed envelope with a middle layer interposed between defining an upper and lower chamber. Fluid is allowed to flow from one side of the middle layer to the other, such that there is uniform pressure throughout. A sealable port is provided in the enclosed envelope for the injection of fluid under pressure. The middle layer is attached to the top layer in a series of seals or attachment points in a rectangular array and is similarly sealed to the bottom layer in a similar rectangular pattern; however, the two patterns are positioned 180 degrees out of phase with each other. These patterns form a series of small cushion areas in the upper and lower chambers respectively and the cushion areas are nested within each other on an offset basis. The individual seals or attachment points are preferably square and are oriented such that lines of maximum stress in the sealed layers are perpendicular to the sides of the square pattern. A number of further seals are formed within the body of the pad, specifically, a preferred pad is divided into three sections with a series of seal lines joining all three layers running lengthwise of the pad parallel to the sides of the pad, thus creating a middle section and two side sections. Interruptions are provided in those seals so that fluid can flow between the sections and the pressure remain uniform throughout.

대표청구항 ▼

A fluid tight pad for supporting a body at minimum pressure on those portions of the body in contact with the pad comprising a first layer of fluid-impervious material forming a top outer layer of the pad, a second layer of fluid-impervious material forming a bottom layer, a third layer of material forming a middle layer with an upper chamber above it and a lower chamber below it, said top and bottom layers joined together around the periphery of said pad forming a fully air-impervious envelope, selectively sealable port means in said envelope for injecting fluid therein, said middle layer not precluding the flow of fluid from one side thereof to the other such that the pressure in the upper and lower chambers are equal, said middle layer being attached to said top layer at a plurality of attachment points in a first rectangular array and attached to said bottom layer at a plurality of attachment points in a second and similar rectangular array, said first and second retangular arrays being offset from each other 180 degrees forming a series of small square cushion areas in said upper and lower chambers in rectangular patterns which are overlapping and offset from each other by 180 degrees, and said first, second and third layers being sealed together along at least one line within the perimeter of said pad.

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Potter Daniel R. ; Passke Joel L. ; Aveni Michael A., Complex-contoured tensile bladder and method of making same.
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Holt, Scott C.; Lindner, Troy C.; Brandt, Christopher W. L., Contoured fluid-filled chamber.
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James C. Sell, Jr. ; Craig E. Santos ; David B. Herridge ; Daniel R. Potter, Footwear bladder with controlled flex tensile member.
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Davis, Paul M.; Millette, Frank; Litchfield, Paul E., Method for manufacturing inflatable bladders for use in footwear and other articles of manufacture.
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John C. Tawney ; David B. Herridge, Method of making bladder with inverted edge seam.
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Dojan, Frederick J.; Foxen, Thomas; Swigart, John F.; Schindler, Eric Steven, Method of manufacturing a fluid-filled bladder with a reinforcing structure.
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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

Air pad 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (100)

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연합인증

Air pad 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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이 특허를 인용한 특허 (100)

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