Magnetically-retained armature retainer for electrical switches

Details Magnetically-retained armature retainer for electrical switches Magnetically-retained armature retainer for electrical switches

2000-01-10

2000-10-24

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Permanent magnet-actuated switches

335177, 335207, H01H 900

Patent

active

061373877

ABSTRACT:
An armature retainer for a magnetic switch retains an armature adjacent an internal surface of a carrier sheet with electrodes thereon forming switch contacts. The retainer includes a polishing pad, a backing layer and openings for the armature to reside therein. Both the armature and the retainer are adhered to the carrier surface by a magnet attraction. One or more magnets are carried in a rotor mounted on the external side of the carrier surface for rotary, linear or complex motion. When a user manipulates a knob attached to the rotor, the magnets rotate the armature and the armature retainer. The polishing pad cleans particles from the carrier surface as the retainer rotates. A shaft receiving opening may be used to tend to keep the armature retainer centered. Grooves embedded in the polishing pad surface are used to collect larger deposits.

REFERENCES:
patent: 5523730 (1996-06-01), Van Zeeland
patent: 5666096 (1997-09-01), Van Zeeland

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