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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0096457 (1993-07-26) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 12 인용 특허 : 0 |
The present invention comprises an improved two-way dynamic shaft-sealing member for a fluid transport system having a butterfly valve with an inflatable seal with the improved shaft-sealing member including a rigid race secured to and carried by the interface portion of the inflatable seal to maint
A butterfly valve for opening and closing an opening in a conduit comprising: a housing having an inflatable sealing member located in said housing, said inflatable sealing member made from an elastomer material, said inflatable sealing member having elastomer legs that lengthen and contract in resp
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