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:
Jun. 28, 1983
Filed:
Mar. 11, 1981
Applicant:
Inventors:
Albert J Schwarz, Lincolnwood, IL (US);
Leonard J Kowal, Prospect Heights, IL (US);
Assignee:
Imperial Clevite Inc., Rolling Meadows, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72388 ; 72217 ;
Abstract
A tube bender construction wherein the forming member is swingably mounted to the form wheel to be adjustable toward and from the form wheel groove to accommodate variations in tube diameter and normal wear of portions of the tube bender during the life thereof. The form wheel defines a concave force transfer surface having an improved engagement with the tube to be bent so as to effectively improve maintained tube roundness for effectively minimized stress formation in the bent tube.