Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Latching means
Patent
1976-10-20
1978-10-10
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Latching means
335170, 337 70, H01H 920
Patent
active
041199359
ABSTRACT:
A circuit interrupter including a releasable latch restrained by a stamped metal rotatable cam having a latching surface in sliding contact with the latch member. The rotatable cam is inclined at an angle to the axis of rotation so as to cause only the smooth portion of the latching surface produced by the shearing action of the stamping process to contact the latch member. The rough portion of the latching surface produced by tearing action of the stamping process is not in contact with the latch member, thereby eliminating the need for a machining operation to provide a low friction contact surface with the latch member.
REFERENCES:
patent: 3754108 (1973-08-01), Marot et al.
patent: 3979704 (1976-09-01), Buckley et al.
Cotton John F.
Salemi Nicholas A.
Wien Raymond E.
Converse, Jr. Robert E.
Harris George
Westinghouse Electric Corp.
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