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:
May. 29, 1984
Filed:
Mar. 08, 1982
Applicant:
Inventor:
Keith E Zukausky, Hanover, IL (US);
Assignee:
Eaton Corporation, Cleveland, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
335255 ; 335247 ; 335262 ;
Abstract
A solenoid for use with an alternating current power supply has a stationary pole piece and a movable armature provided with an axially extending food means comprising in one embodiment a ring of nonmagnetic material and in another embodiment a plurality of ferromagnetic lugs on the end adjacent the pole piece. The lugs are disposed in peripherally spaced arrangement and extend axially from the armature in the region of contact with the pole piece to prevent rocking and orbiting buzz. The armature optionally includes a shading ring and/or slot extending a portion of the length thereof.