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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0804234 (1977-06-06) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 3 인용 특허 : 0 |
A vacuum flush water closet having a bowl and rim which are made from steel stampings covered with chemical resistant porcelain. The water closet has a self-contained flushing water and sewage valve discharge control system which is operatively mounted around the bowl and enclosed by an outer shroud
A vacuum and gravity operated timer, comprising: (a) a housing, (b) a pair of vacuum flow control valves, (c) a double faced cam, (d) said double faced cam being mounted on a pivoted lever arm which has one end pivoted on said housing, (e) a pair of pivotally mounted carrier arms, each of said carri
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