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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0708071 (1985-03-04) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 8 인용 특허 : 1 |
A damper for ducts of large cross sectional areas has an upstream seat surrounding the flow path and a blade which consists of upstream and downstream skins of a high quality nickel allow steel and an internal reinforcement. The thickness of the skins is such that, given the size and shape of the se
A blade for a damper having an upstream seat surrounding the flow path through the damper and means operable to reciprocate said blade between positions in which said flow path is blocked and flow through the damper is permitted, said blade including upstream and downstream skins of a high quality n
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