发明名称 |
Sexless coupling for fire hydrant-fire hose connection |
摘要 |
A sexless coupling for coupling a fire hose to the externally threaded neck of a fire hydrant. The coupling comprises an internally threaded collar portion for threading onto the neck of the fire hydrant, the internally threaded collar portion having a flapper valve and an externally threaded portion. The coupling further comprises an external ring having an internal thread for threading the external ring onto the externally threaded portion of the collar. The external ring carries hooked lugs for forming a male connection and arcuate grooves for forming a female connection with a complementary coupling of a fire hose. In accordance with one embodiment of the invention, a flat neoprene rubber seal is disposed between facing surfaces on the internally threaded collar and external ring. In accordance with another embodiment of the invention, an annular ring of sealing material is disposed in a groove in the external ring and seals against the collar portion adjacent to the threads when the collar and external ring are assembled.
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申请公布号 |
US7128091(B2) |
申请公布日期 |
2006.10.31 |
申请号 |
US20030669331 |
申请日期 |
2003.09.25 |
申请人 |
HYDRA-SHIELD MANUFACTURING, INC. |
发明人 |
ISTRE, JR. ROY |
分类号 |
F16K15/03;F16L37/252;F16L55/00 |
主分类号 |
F16K15/03 |
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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