Daniel J Shull

US Patent:

47712554, Sep 13, 1988

Filed:

Jan 2, 1987

Appl. No.:

7/000158

Inventors:

Daniel S. Shull - Raleigh NC
Lester P. Henley - Stickney IL

Assignee:

Regdon Solenoid, Inc. - Brookfield IL

International Classification:

H01F 708

US Classification:

335253

Abstract:

A solenoid device is provided which includes a bobbin having an armature bore through its center; a plunger partially extending into the bore and serving as an armature of the solenoid; and a coil wound around the bobbin for generating magnetic flux to move the plunger axially in the bore. The plunger includes a first segment which moves axially in the bore of the bobbin in response to magnetic flux generated by the coil. The plunger also includes a second segment which serves as the latching device for the locking mechanism. Finally, the plunger includes a linkage connecting the first and second segments together and mounting devices for mounting the linkage to the first and second segments. This linkage pivots in response to a compressive force applied to the plunger and engages a stop disposed proximate the plunger, preventing the second segment from moving out of a latching position.