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. 10, 1994
Filed:
Dec. 28, 1990
Lawrence M Burrage, South Milwaukee, WI (US);
James V White, Waukesha, WI (US);
John F Baranowski, Franklin, WI (US);
Gary L Goedde, Racine, WI (US);
Cooper Power Systems, Inc., Houston, TX (US);
Abstract
A transformer core of non-circular cross-section, preferably rectilinear, is formed by successively wrapping individual packets of core strips around a stationary mandrel of non-circular cross-section. Each packet is wrapped by a pair of yieldably biased rollers which follow the contour of the mandrel. As the packet is being wrapped, pressure pads are extended to hold the packet against the mandrel. The pressure pads are momentarily retracted to accommodate return movement of the roller wipers to receive a subsequent packet. The ends of the packet form a joint at the top of the mandrel. The positions of successive packets can be changed to vary the location of the joint in order to form a desired joint pattern.