发明名称 |
Flow control valve with device for indicating the status of a fluid, particularly for gas containers |
摘要 |
A valve body is provided with at one end with a threaded shank for hermetic coupling to a gas container. The valve body is further provided with a handwheel incorporating a gas status indicator device. That device includes a spring-loaded plunger having a head and a helical stem that is engaged in a cavity of a rotatable body so that an axial movement of the plunger, in opposition to a spring biasing force, results in a rotation of the rotatable body. A visible portion of the rotatable body is marked so as to provide an indication of the axial position of the plunger relative to the handwheel, to thereby indicate gas pressure.
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申请公布号 |
US7134449(B2) |
申请公布日期 |
2006.11.14 |
申请号 |
US20040892864 |
申请日期 |
2004.07.16 |
申请人 |
CAVAGNA GROUP SWITZERLAND S.A. |
发明人 |
FREDERIKSEN NEILS |
分类号 |
F16K37/00;F16K1/30;F16K31/60;F17C13/02;G01L7/02;G01L7/16;G01L19/10;G05D7/01 |
主分类号 |
F16K37/00 |
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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