Controllable electronic switch with interposable non-conductive element to break circuit path
Patent 6825750 Issued on November 30, 2004. Estimated Expiration Date: 
November 27, 2022. 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.
November 27, 2022. 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 ReferencesInventorAssigneeApplicationNo. 10307222 filed on 11/27/2002US Classes:337/105, With electrical power supply or current control means337/102, With external or auxiliary heating means337/107Significant heating element structure or compositionExaminersPrimary: Vortman, AnatolyAttorney, Agent or FirmForeign Patent References
International ClassesH01H 3752H01H 3702 AbstractA controllable electronic switch for, e.g., controlling power distribution comprises a deformable member such as a bimetal arm that can be deformed to break an electrical path. The deformable member may be anchored at one end and in controllable contact with an electrical conductor at the other end. A heating element, such as a coil, can be used to selectively heat the deformable member. The controllable electronic switch can alternatively comprise a deformable member that is terminated in a wedge-shaped member. When the deformable member bends in response to being heated, the wedge-shaped member forces apart a pair of contacts thus breaking an electrical path. The wedge-shaped member and/or associated structures may be configured as a cam mechanism with multiple latching positions.Field of SearchELECTROTHERMALLY ACTUATED SWITCHESBimetallic means With bimetallic elements (i.e., motion takes place in a plane at right angles to its major axis) Bimetallic element unitary with or directly actuates movable contact means Plural contacts or external circuit connection means With external or auxiliary heating means With electrical power supply or current control means Significant heating element structure or composition With external circuit connection means With bimetallic element Bimetallic element unitary with or directly actuates contacts With auxiliary heating means | |
