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. 16, 2016
Filed:
Aug. 05, 2009
Applicants:
David E. Samuelson, Wheatfield, NY (US);
Kent S. Edward, Albion, NY (US);
Inventors:
David E. Samuelson, Wheatfield, NY (US);
Kent S. Edward, Albion, NY (US);
Assignee:
MAHLE International GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 53/06 (2006.01); B21D 7/022 (2006.01); B21D 7/024 (2006.01); B21D 53/02 (2006.01);
U.S. Cl.
CPC ...
B21D 53/06 (2013.01); B21D 7/022 (2013.01); B21D 7/024 (2013.01); B21D 53/02 (2013.01); Y10T 29/4935 (2015.01);
Abstract
An improved corner bending apparatus and method for a bent head exchanger includes a first step of providing a tube edge clearance to at least the inner core face edges of those few tubes encompassed by the area of the core to be bent. A series of elongated braces, able to flex relative to one another, is placed into the tube edge clearance prior to bending. The braces actively maintain the tube edges (and tubes) in a parallel, undeformed orientation during the bend, which may be done by otherwise conventional apparatus.