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:
Oct. 06, 1987
Filed:
May. 01, 1986
Applicant:
Inventor:
James M Pick, Elk Grove, IL (US);
Assignee:
Eaton Corporation, Cleveland, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
335281 ; 2960 / ;
Abstract
A U-shaped ferro-magnetic pole frame has a circular recess formed in the closed end thereof with a plurality of peripherally spaced raised lugs formed in the recess. A tubular ferro-magnetic pole piece, adapted for insertion into an electrical coil, has one end thereof clamped temporarily against the lugs and current is passed therethrough for effecting resistance welding of the pole piece to the pole frame and the clamp is then removed.