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:
Dec. 20, 1977
Filed:
Mar. 22, 1976
John C Schuessler, West Covina, CA (US);
Marvin G Nelsen, Irvine, CA (US);
David J Tapp, Manhattan Beach, CA (US);
Leach Corporation, Los Angeles, CA (US);
Abstract
An electromechanical relay in which an electromagnetic actuator rotates a pivotally supported armature between a first position and a second position by energizing the actuator and rotates the armature back to the first position by de-energizing the actuator. The actuator comprises an electromagnet including a core, a winding on the core, and first and second pole pieces at the respective ends of the core, the pole pieces having pole faces adjacent the same surface of the armature but on opposite sides of the pivot. A permanent magnet is arranged such that a third pole piece forms one pole of the permanent magnet and the electromagnet forms the other pole of the permanent magnet, so that the first and second pole pieces are magnetically polarized to the opposite polarity relative to the third pole piece by the permanent magnet. The pole face of the second pole piece terminates substantially adjacent the pivot, while the pole face of the first pole piece terminates substantially away from the pivot. The third pole piece is positioned relative to the armature on the same side of the pivot as the second pole piece.