The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 1987
Filed:
Mar. 27, 1985
Jerzy Hoffman, Marina Del Rey, CA (US);
Wavecom, Northridge, CA (US);
Abstract
A solenoid is disclosed which uses a plastic coil bobbin as the bearing surface for the armature, the body of which extends coaxially through the central cylindrical cavity of the bobbin. Extending into this cavity, from the end opposite the armature, is a plug which is rigidly fixed to the bobbin by an outer housing that surrounds the bobbin and has a skirt which captures a flanged end of the plug. A plunger that extends through an axial bore in the plug floats freely, coaxially of the bobbin. The interior end of the plunger has an enlarged head that is received within a bore in the armature body. A bias spring is situated between this plunger head and a counterbore in the plug.