Electromagnetic solenoid operated switch, particularly starter s

Details Electromagnetic solenoid operated switch, particularly starter s Electromagnetic solenoid operated switch, particularly starter s

1979-07-16

1981-02-17

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

With operation-inhibiting means

335131, 335193, H01H 360

Patent

active

042517885

ABSTRACT:
To reliably hold a movable contact bridge carrier on a longitudinally slidable contact stem in position, even though subjected to severe vibration and shock, while still permitting free longitudinal movement of the stem carrying the contact carrier, the stem is passed through an opening formed in the magnetic yoke of the operating solenoid, and a clamping bushing, for example of tough, elastically deformable plastic, such as nylon, is placed in position to surround the stem where it passes through the opening, the bushing having spreader elements which extend radially outwardly to resiliently bear against the inner surface of the opening, the spreader elements merging into a cylindrical portion of the bushing surrounding the stem to hold the stem in centered, vibration and shock-absorbing position within the opening in which it is longitudinally movable.

REFERENCES:
patent: 3047690 (1962-07-01), Sprague et al.
patent: 3273086 (1966-09-01), Eberline et al.
patent: 3848206 (1974-11-01), Prouty et al.

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