Electromagnetically operated switch

Details Electromagnetically operated switch Electromagnetically operated switch

1989-11-22

1991-01-08

Stephan, Steven L.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335260, H01F 716, H01F 708, H01F 713

Patent

active

049839411

ABSTRACT:
An electromagnetically operated switch comprises a cylindrical bobbin having an exciting coil wound thereon; a fixed core arranged in the bobbin and a movable core arranged to confront the fixed core; a flange provided on the fixed core to expand outwardly in the radial direction and located on an end surface of the bobbin; a rod inserted in a through bore formed in the center of the fixed core; a flexible insulating sheet put on the end surface of the flange of the fixed core, having an opening in a central portion, and connected sealingly to the rod which extends through the opening; a cup-shaped cap mounted on the flange end surface to sandwich the sheet between the flange and the cap; and a movable contact supported by the rod in the cap.

REFERENCES:
patent: 3098635 (1963-07-01), Delaporte et al.
patent: 3306570 (1967-02-01), Cooksley
patent: 3447773 (1969-06-01), Huber
patent: 3822469 (1974-07-01), Lazenby
patent: 4450423 (1984-07-01), Morishita
patent: 4520332 (1985-05-01), Tagliafico
patent: 4677407 (1987-02-01), Tanaka et al.
patent: 4847580 (1989-07-01), Morishita et al.

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