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:
Nov. 13, 1990
Filed:
Mar. 20, 1989
Applicant:
Inventor:
Genzo Fuse, Sayama, JP;
Assignee:
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
219 8641 ; 219110 ;
Abstract
A displacement detector is attached to the pressure cylinder which operates scissored gun arms to open and close the welding gun instead of being attached directly to the arms and measures displacement of the piston rod. An optical distance sensor mounted on the front cover of the cylindr is disposed to face the piston and determine the distance thereto. Alternatively, a linear moving type potentiometer can be mounted outside the cylinder having its slider connected to the piston rod.