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. 24, 1978
Filed:
Apr. 07, 1976
Applicant:
Inventors:
Takao Yokokawa, Tokyo, JP;
Shigeo Takano, Machida, JP;
Yasuaki Ichinose, Sayama, JP;
Toshiyuki Kasahara, Hino, JP;
Fumiaki Ikeda, Nishinomiya, JP;
Assignee:
Nippon Steel Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K / ; B23K / ;
U.S. Cl.
CPC ...
228102 ; 228236 ; 228237 ;
Abstract
In an automatic gas pressure welding system wherein a couple of steel members are butted, the butted section is subjected to heating in a pressed state, to thus cause the steel members to be subjected to pressure welding. The pressing and heating periods are controlled in conformity with the amount of contraction of the heated section of the steel members.
Yokokawa, Takao. (1978). Gas pressure welding process (U.S. Patent No. 4121748). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4121748
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile