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:
Apr. 24, 1984
Filed:
Dec. 03, 1980
Kou C Lin, Hermitage, PA (US);
Charles E Burkhardt, Sharon, PA (US);
Electric Power Research Institute, Inc., Palo Alto, CA (US);
Abstract
A magnetic core including a plurality of layers of laminations formed from a magnetic strip material wherein at least two side leg and two yoke laminations are assembled around a core window to form four outer corners. Each of the side leg and yoke laminations have had one end thereof sheared diagonally with respect to the longitudinal dimension of the strip material. The other half of this one end is sheared substantially perpendicular to the strip material's longitudinal dimension. In each layer, the ends of the side leg and yoke laminations form two joints that are half straight and half diagonal. The ends of the side leg and yoke laminations in each layer form a step pattern about the outer corners of the core with the joints between the side leg and yoke laminations in one layer overlapping the joints between the side leg and yoke laminations in the next adjacent layer. A series of lap joints is thus formed in step relation.