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:
Apr. 26, 1983
Filed:
Feb. 05, 1981
Applicant:
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72-8 ; 72 32 ; 72150 ;
Abstract
This invention relates to a tube-bending machine, which is so constructed that force detection means to detect a force acting in the axial direction of a mandrel under a tube-bending operation is disposed on the mandrel of tube-bending means so as to sense bending conditions such as a lubrication condition of an inner surface of a tube being bent and a mandrel position, and further that fluctuations from predetermined bending conditions, of the bending conditions during the tube-bending operation are detected and corrected.
Uchida, Fumihiko. (1983). Tube-bending machine (U.S. Patent No. 4380917). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4380917
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile