Invention Grant
- Patent Title: Electrical switching apparatus and heater assembly therefor
- Patent Title (中): 电气开关设备及其加热器组件
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Application No.: US12130260Application Date: 2008-05-30
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Publication No.: US07800478B2Publication Date: 2010-09-21
- Inventor: Craig J. Puhalla , David E. Little , Kelly J. McCarthy , Robert W. Mueller , Wilbert E. Lindsay
- Applicant: Craig J. Puhalla , David E. Little , Kelly J. McCarthy , Robert W. Mueller , Wilbert E. Lindsay
- Applicant Address: US OH Cleveland
- Assignee: Eaton Corporation
- Current Assignee: Eaton Corporation
- Current Assignee Address: US OH Cleveland
- Agent Martin J. Moran
- Main IPC: H01H61/00
- IPC: H01H61/00 ; H01H71/50

Abstract:
A heater assembly is provided for an electrical switching apparatus. The heater assembly includes a heater element and an elongated bimetal. The heater element includes first and second ends, an intermediate portion disposed therebetween and an aperture disposed proximate the first end. The elongated bimetal includes opposing first and second ends, and is movable between first and second positions corresponding respectively to the separable contacts of the electrical switching apparatus being closeable, and to the first end of the elongated bimetal cooperating with a trip bar to cause an operating mechanism to open the separable contacts. The second end of the elongated bimetal is coupled to the intermediate portion of the heater element. When the elongated bimetal is disposed in the first position, the first end of the elongated bimetal extends beyond the upper surface of the first end of the heater element into the aperture of the heater element.
Public/Granted literature
- US20090295532A1 ELECTRICAL SWITCHING APPARATUS AND HEATER ASSEMBLY THEREFOR Public/Granted day:2009-12-03
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