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:
Oct. 01, 1985
Filed:
Jun. 30, 1983
Applicant:
Inventor:
Thomas P Lang, 6120 Michelstadt, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ; B21D / ;
U.S. Cl.
CPC ...
72150 ;
Abstract
Thin walled pipes, as for example pressure gauge springs are bent by inserting a flexible mandrel in to the pipe and to forward the pipe simultaneously with the mandrel over a forming member until a sufficient length of the pipe is provided for the bending step. The mandrel is then forwarded relative to the pipe to project therefrom and both parts are bent around the forming member. Then, the mandrel is retracted and the pipe arc is separated.