Electricity: electrical systems and devices – Safety and protection of systems and devices – Circuit interruption by thermal sensing
Reexamination Certificate
2007-03-06
2007-03-06
Jackson, Stephen W. (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
Circuit interruption by thermal sensing
C361S115000
Reexamination Certificate
active
10427020
ABSTRACT:
A receptacle interrupts a power circuit including a glowing contact and a gas, such as hydrogen chloride, carbon dioxide, carbon monoxide or a combination of those gases, associated with the glowing contact. The receptacle includes a set of separable contacts for interrupting the power circuit, an operating mechanism controlling the set of separable contacts, and a trip mechanism, such as a trip coil, cooperating with the operating mechanism to open the set of separable contacts in response to a trip signal. A gas detector detects the gas and outputs a gas concentration signal based upon a level of the gas. A microprocessor outputs the trip signal responsive to the gas concentration signal whenever a predetermined concentration level of the gas is detected.
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Natili Thomas E.
Tallman David M.
Eaton Corporation
Jackson Stephen W.
Moran Martin J.
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