Internal-combustion engines – Cooling – Indicators and safety devices
Patent
1985-04-12
1986-10-07
Lazarus, Ira S.
Internal-combustion engines
Cooling
Indicators and safety devices
116204, 116228, 116267, 73308, 7386175, F02B 7708, G01D 512, G01F 2310
Patent
active
046153039
ABSTRACT:
A water flow failure detection device comprising a first water flow conduit; a second conduit with one end closed and the other end open communicating with the water flow conduit; positioned within the second conduit is a float which is free to translate therein. The float includes a permanent magnet positioned around its longitudinal mid-section; and a reed switch located on the external surface of the second conduit whereby the flow of water through the first conduit sufficiently raises or elevates the float away from the reed switch allowing the reed switch to return to its normal state and an absence of water flow causes the float to translate downward due to gravity to a location adjacent the reed switch thereby changing the state of the reed switch. The reed switch change of state can be used to terminate fuel or ignition to an engine or operates an alarm signal in the absence of cooling water flow through the engine. The device is also adaptable for use in detecting the volume of a liquid in a container.
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Gilliam Frank D.
Lazarus Ira S.
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