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. 25, 1988
Filed:
Jul. 22, 1987
Applicant:
Inventors:
Teruji Shibayama, Yokohama, JP;
Yoshio Kaneko, Yokohama, JP;
Assignee:
Nifco, Inc., Yokohama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16B / ;
U.S. Cl.
CPC ...
411171 ; 411 82 ; 411908 ; 156 735 ;
Abstract
A rotary welding member made of synthetic resin material comprising a post portion, and a disk-shaped flange portion integrally mounted on one end of the post portion and having at least one groove in the mounting surface thereof for permitting air to flow therethrough with respect to an exterior periphery surface portion of the flange portion whereby excess frictional heat generated during the rotary welding process is effectively dissipated.