发明名称 |
Tamper-proof hydrant cover |
摘要 |
A tamper-proof cover for the operating nut of a hydrant. The cover includes a housing adapted to be positioned above the operating nut for covering the operating nut, the housing having an opening, a housing mounting device securable to the hydrant and engagable with the housing for securing the housing to the hydrant, and a locking device for removably securing the housing to the mounting device which includes a pin positionable in the opening in the housing and engagable with a recess defined in the mounting device, a locking member engagable with the pin and the recess in the housing, a frangible shoulder within the recess in the mounting device against which the locking member seats and which must be broken to remove the pin. Other forms of the tamper-proof cover and a tool for removing the cover are also disclosed.
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申请公布号 |
US4727900(A) |
申请公布日期 |
1988.03.01 |
申请号 |
US19860940747 |
申请日期 |
1986.12.11 |
申请人 |
DOOLING, JOSEPH S.;VANEK, KENNETH F.;VANEK, GENE R. |
发明人 |
DOOLING, JOSEPH S.;VANEK, KENNETH F.;VANEK, GENE R. |
分类号 |
E03B9/06;(IPC1-7):E03B9/06;F16K35/06 |
主分类号 |
E03B9/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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