Extended life solenoid

Details Extended life solenoid Extended life solenoid

1995-11-01

1997-07-29

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

74 21, H01F 300

Patent

active

056525605

ABSTRACT:
A method and solenoid assembly for extending the wear life of the solenoid. These include: enabling rotation of the solenoid plunger within the solenoid housing to expose a new solenoid plunger surface when solenoid plunger surface reaches a failure mode; reducing and/or eliminating side load on the solenoid; reducing the clearance or tolerance between the solenoid housing and the solenoid plunger to reduce solenoid wear; and a stop feature improvement with less stress concentration.

REFERENCES:
patent: 4558293 (1985-12-01), Haneda et al.
patent: 4636761 (1987-01-01), Caruso et al.
patent: 5417403 (1995-05-01), Shurman et al.

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