Electromagnetic formed contact surface

Details Electromagnetic formed contact surface Electromagnetic formed contact surface

2005-02-08

2005-02-08

Donovan, Lincoln (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Multiple contact type

C335S281000

Reexamination Certificate

active

06853276

ABSTRACT:
An electromagnetically actuable device includes a base. A magnetic core is fixedly mounted to the base. An armature is movably mounted to the base proximate the magnetic core. A coil is fixedly mounted to the base and is selectively energized to draw the armature to the magnetic core. The armature and magnetic core have mating surfaces adapted to provide three contact areas in a triangular configuration to provide minimal magnetic air gap and a stable interface when the coil is energized.

REFERENCES:
patent: 3546571 (1970-12-01), Fletcher et al.
patent: 4577174 (1986-03-01), Lemmer
patent: 5435343 (1995-07-01), Buezis
patent: 5623239 (1997-04-01), Sitar
patent: 6232864 (2001-05-01), Hosozawa et al.

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