Circuit breaker assembly
Patent 6075436 Issued on June 13, 2000. Estimated Expiration Date: 
May 18, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 18, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorApplicationNo. 314274 filed on 05/18/1999US Classes:337/363, Multiple contacts or external circuit control means337/318, Snap-action337/333, With bimetallic element337/365Snap-actionExaminersPrimary: Picard, Leo P.Assistant: Vortman, Anatoly Attorney, Agent or FirmForeign Patent References
International ClassesH01H 037/52H01H 037/32 AbstractA circuit breaker assembly, which is responsive to both current overload and thermal overheat or over-cold, includes a circuit breaker switch containing a current release device arranged in a housing to be responsive to a current overload and operative to permit a respective contact spring to move a corresponding movable contact away from a fixed contact upon the occurrence of a current overload and independently of the position of a switching rocker; and a thermal release actuator received in the housing for can automatically providing an actuating action to operate another respective contact spring to move another corresponding movable contact away from another fixed contact when a temperature of a predetermined surrounding zone is overheated or over-cold. The circuit breaker further includes at least a thermal detector disposed within the surrounding zone for breaking a current flowing therethrough when a temperature therearound is overheated or over-cold that reaches a predetermined temperature; and a connecting circuit for electrically connecting the thermal detector in parallel with the circuit breaker switch.Field of SearchWith manual or other mechanical contact control meansMultiple contacts or external circuit control means With external or auxiliary heater Utilizing plural bimetallic elements Auxiliary heating means Bimetallic means With external or auxiliary heating means Significant heating element structure or composition With external or auxiliary heating means With bimetallic element With plural bimetallic elements With auxiliary heating means With significant external circuit connection means Snap-action Snap-action Snap-action Snap-action Snap-action (e.g., bistable) Bimetallic element unitary with or directly actuates contacts | |
