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:
Aug. 18, 1992
Filed:
Apr. 18, 1991
Applicant:
Inventors:
Michael A Breda, East Amhert, NY (US);
George K Snyder, Lockport, NY (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
29890039 ; 29890053 ; 29726 ;
Abstract
A machine with counter-rotating rotors moves heat exchanger plates two at a time with vacuum assist through paths which converge in a vertical mating plane. Arcuate guides engage the plate ends to control the plate path. The rotors are servomotor controlled to synchronously index the rotor in increments separated by dwell periods. After assembly the merged pairs drop between spaced guides into an assembly fixture. At a subsequent brazing operation each plate pair becomes a tube for carrying refrigerant.