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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0255067 (1981-04-03) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 9 인용 특허 : 1 |
A roof construction system wherein loosely-laid membranes on the top of a roof are held in place on the roof by suction forces when the wind blows, the suction forces varying directly in proportion to the wind velocity which would otherwise tend to lift the membrane so that frontal pressure and drag
A roof system comprising a roof surface, a roof membrane positioned on said roof surface, a suction inlet located between said roof membrane and said roof surface, a housing rotatably connected to said suction inlet, a shaft mounted in said housing positioned parallel to the plane of said roof surfa
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