Electricity: circuit makers and breakers – Interlocking
Patent
1996-02-29
1997-12-23
Scott, J. R.
Electricity: circuit makers and breakers
Interlocking
200 5002, 200 5012, H01H 920
Patent
active
057009856
ABSTRACT:
An electrical operator includes a housing; a motor driven ball screw for operating the handle of a circuit breaker in an electrical mode of operation, and a handle extension for operating the circuit breaker handle in a manual mode of operation; a slider plate sliding through an opening of the housing between an intermediate position enabling the manual mode of operation, an inner position enabling the electrical mode of operation, and an outer position wherein the manual and electrical modes are disabled; and a cantilevered latch spring member connected to the slider plate. The free end of the cantilevered latch spring member engages the housing at about the opening thereof to stop the slider plate in its manual intermediate position. The free end of the cantilevered latch spring member deflects toward the slider plate to disengage from the housing and permit the slider plate to enter the inner electrical position thereof.
REFERENCES:
patent: 4827369 (1989-05-01), Saletta et al.
patent: 4951020 (1990-08-01), Changle et al.
patent: 4963846 (1990-10-01), Grunert et al.
patent: 5196658 (1993-03-01), Gula
Westinghouse Electric Corporation, Installation Instructions for Motor Operator for R-Frame Circuit Breakers and Molded Case Switches, I.L. 29C205-A, pp. 1-6, Apr. 1991.
Fischer Kenneth M.
Puhalla Craig J.
Eaton Corporation
Moran Martin J.
Scott J. R.
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