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. 22, 1985
Filed:
Apr. 11, 1983
Applicant:
Inventor:
Masuo Fukuda, Toda, JP;
Assignee:
Saikei Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D / ; B21D / ;
U.S. Cl.
CPC ...
2915 / ; 2915 / ; 29520 ; 181243 ; 285382 ; 2853821 ; 2853827 ;
Abstract
A method of rigidly connecting a plate and a tube such as those of a muffler associated with an internal combustion engine. The plate is formed with an eyelet by burring or like technique and, then, the tube is inserted into the eyelet as far as a predetermined position. A stop is placed to backup the plate at a flat surface of the latter where a flange produced by the eyelet is absent. This is followed by driving a die to compress the flange in such a manner as to reduce the diameter of the eyelet, thereby plastically deforming the flange. Part of the flange proportional to the decrease in diameter is caused to thrust into the periphery of the tube.