Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Manually or gravity-operated latch with electromagnetic trip
Patent
1986-03-19
1987-07-07
Goldberg, E. A.
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Manually or gravity-operated latch with electromagnetic trip
335255, 335263, 25112903, H01H 920
Patent
active
046790179
ABSTRACT:
An emergency manual actuation mechanism for a conventional solenoid having a plunger with one end connected to an external apparatus, such as a diesel engine fuel pump, in which energization of the solenoid coil retracts the plunger axially; the mechanism comprises a non-magnetic retraction rod that extends into the solenoid housing in alignment with the solenoid plunger and is axially movable from a normal position disengaged from the plunger to an intermediate position at which a mechanical connection is completed between the rod and the plunger. Further axial or rotary movement of the retraction rod to a retraction position drives the plunger to its retracted position, simulating energization of the solenoid coil. Retainer means hold the retraction rod and the solenoid plunger at their retracted positions.
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Mishler Ralph E.
Stocco Peter J.
Donovan Lincoln
Goldberg E. A.
Synchro-Start Products, Inc.
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