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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0222207 (1981-01-02) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 31 인용 특허 : 5 |
A cushion is disclosed having at least two coextensive overlying fluid compartments. One compartment is inflated with a compressible fluid, preferably air. The other compartment is inflated with a non-compressible fluid, preferably water. The compartments are provided with fluid communicated chamber
A cushion for use between a support and a person seated on said support; the improvement in said cushion comprising first, second, and third membranes, said membranes covering an area sufficient to support said person in said seat, all said membranes joined at the side edges thereof to other membran
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