发明名称 |
AUTOMATIC SWITCHING DEVICE FOR A BREATHING APPARATUS WITH AN ALARM-RELIEF FUNCTION AND AUTOMATIC RESET |
摘要 |
Apparatus and associated methods relate to an automatic fluid alarm that provides an fluid-communication path between a secondary fluid source and a whistle port when a primary fluid source experiences a reduction in pressure, the automatic fluid alarm being user resettable by disconnecting the primary fluid source or otherwise reducing the primary source pressure and activating a reset member, thereby interrupting the fluid-communication path. In some examples, a piston member may provide a movable seal for providing the fluid-communication path and its interruption. An exemplary piston member may be slidably reset in a non-interrupting mode by an adequate primary fluid pressure, and slidably set in an interrupting mode by a user activation. The interrupting mode may silence the whistle which may facilitate user communication during what may be a stressful primary fluid source failure event. Some exemplary automatic fluid alarms may conserve secondary fluid when the whistle is silenced. |
申请公布号 |
WO2014123695(A3) |
申请公布日期 |
2014.10.02 |
申请号 |
WO2014US12684 |
申请日期 |
2014.01.23 |
申请人 |
HONEYWELL INTERNATIONAL INC. |
发明人 |
ZHENG, JIMMY;CORDIER, GILLES |
分类号 |
A62B9/00 |
主分类号 |
A62B9/00 |
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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