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:
Jun. 27, 2006
Filed:
May. 17, 2002
Hiroshi Miwa, Utsunomiya, JP;
Shigemitsu Nakabayashi, Tochigi-ken, JP;
Hitoshi Sasaki, Tokyo, JP;
Masaaki Shoji, Tochigi-ken, JP;
Hiroki Hashimoto, Saitama-ken, JP;
Osamu Kurihara, Higashikurume, JP;
Takuro Kugimiya, Saitama, JP;
Akiyoshi Shimizu, Tochigi-ken, JP;
Shigenori Yoshimi, Utsunomiya, JP;
Hiroshi Miwa, Utsunomiya, JP;
Shigemitsu Nakabayashi, Tochigi-ken, JP;
Hitoshi Sasaki, Tokyo, JP;
Masaaki Shoji, Tochigi-ken, JP;
Hiroki Hashimoto, Saitama-ken, JP;
Osamu Kurihara, Higashikurume, JP;
Takuro Kugimiya, Saitama, JP;
Akiyoshi Shimizu, Tochigi-ken, JP;
Shigenori Yoshimi, Utsunomiya, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A motor-driven welding gun has a servomotor for displacing a movable electrode tip toward and away from a fixed electrode tip. The servomotor has a motor housing with a copper pipe which is inserted therein when the motor housing is cast. The copper pipe provides a coolant passage in the motor housing for supplying a coolant therethrough. When the coolant passage is supplied with the coolant, the motor housing is forcibly cooled, reducing the amount of heat generated by the servomotor.