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:
Jul. 13, 1993
Filed:
Nov. 18, 1991
Robert M Macartney, Lockport, NY (US);
Samuel Cicatello, East Amherst, NY (US);
Silas G Goma, Amherst, NY (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A banding strap for holding together the parts of a heat exchanger core during a brazing operation is crimped at its overlapping ends by forming two longitudinally spaced pairs of tabs, each pair being on opposite side edges of the strap. The tabs are bent from the strap ends at an angle normal to the strap surface so that corresponding notches are formed in the strap. The crimping apparatus includes a clamp for holding one end of the strap, a knife for cutting off the strap from stock, a laminated anvil which descends onto one side the strap, and crimping blades which move around to the opposite side of the strap to push portions of the strap ends against the sharp edges of the anvil to form the tabs. A powered ram is coupled to each of the clamp, knife, anvil, and crimping elements to operate each element in proper sequence during ram motion.