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. 15, 1991
Filed:
Dec. 19, 1989
Gary E Holt, Holland, MI (US);
Mark IV Industries, Inc, Amherst, NY (US);
Abstract
A method of making an insulating enclosure (114) for a low resistance welding transformer (110) comprises assembling primary (116) and secondary (118) coils and a steel core (120) into a conventional inductive subassembly (112) having primary (122) and secondary (124) coil leads; placing the subassembly (112) into a mold (140) having stubs (164) projecting inwardly of the mold (140) in predisposed positions; and filling the mold (140) with an epoxy resin to sealingly encapsulate the subassembly (112) and provide premolded apertures (136) through the resulting enclosure (114). The epoxy resin includes equal parts of a nonfoaming, thermal-set epoxy and an aluminum oxide filler.