Electricity: circuit makers and breakers – Fluid pressure – Flow-responsive type
Patent
1985-01-25
1987-03-03
Tolin, G. P.
Electricity: circuit makers and breakers
Fluid pressure
Flow-responsive type
200306, 200 83, H01H 3530
Patent
active
046477381
ABSTRACT:
A remote actuator means for a pressure-switch operated device such as a conventional latching relay acting as as on-off switch for an electric motor is provided which comprises a remote spring-loaded actuator cap connected to the device to be actuated via an air actuator conduit. The air actuator conduit communicates with the atmosphere through a vent provided only in the actuator cap. When the operator manually depresses the actuator cap, he or she will automatically cover the vent opening, causing the heretofore open system to be temporarily closed. As the actuator cap is depressed, it compresses air within the now temporarily closed system, causing the latching relay to be "pulsed", which, in turn, activates or deactivates whatever the relay is electrically connected to, e.g., an electric motor driving a water pump in a whirlpool bath system. Because the pressure-switch actuating or deactuating the relay or other device is always open to the atmosphere and is temporarily closed only for actuating or deactuating purposes, the relay, or other device, will not be prematurely triggered by increase in pressure, which would otherwise be the case if the pressure-switch and actuator cap existed in an essentially closed system--as in the prior art.
REFERENCES:
patent: 3736836 (1973-06-01), McAllister
patent: 4413214 (1983-11-01), Brown
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