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:
Jan. 09, 1996
Filed:
Dec. 20, 1993
Applicant:
Inventor:
James R Sabine, Burlington, CA;
Assignee:
Eagle Precision Technologies Inc., Brantford, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B / ;
U.S. Cl.
CPC ...
72 24 ; 72149 ; 72151 ; 72369 ;
Abstract
The invention provides an apparatus for the rotary draw bending of pipe and tube having means to apply an axial boost force to the trailing end of the tube during the bending operation, which force assists in controlling the flow of tube material into the bend. The apparatus has means to monitor the amount of material being used during each bending operation and means to control the amount of boost applied to the tube whereby the bending operation can be controlled to better achieve desired elongation characteristics. Bent tubes to a consistent standard and quality are obtained.