Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Manually or gravity-operated latch with electromagnetic trip
Patent
1988-04-15
1989-10-03
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
048719897
ABSTRACT:
A manual actuation mechanism for a solenoid having a plunger with one end connected to an external apparatus, such as a diesel engine fuel pump energization of the solenoid coil drives the plunger axially from an initial position to an actuation position. The manual actuation mechanism comprises a retraction rod that extends axially through the solenoid and is movable from a normal position disengaged from the plunger to a retraction position; in moving to its retraction position the rod drives the plunger to its actuated position, simulating energization of the coil. The manual actuation mechanism further includes a retainer comprising a spring clamp mounted on the housing and projecting into firm, resilient gripping engagement with the rotary actuator to preclude vibrational or other incidental rotation of the actuator regardless of its position. The spring clamp also serves as a strain relief for electrical connections to the solenoid.
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Donovan Lincoln
Goldberg E. A.
Synchro-Start Products, Inc.
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