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:
Dec. 31, 1991
Filed:
Nov. 16, 1990
Applicant:
Inventors:
Hiroshi Hasegawa, Marugame, JP;
Junichiro Nishitani, Marugame, JP;
Toshimasa Maruyama, Marugame, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
2001 / ; 2001 / ; 2001 / ;
Abstract
An insulative tube (93) of a switch is molded with an inserted tubular condutor (15), and a sliding contact (14) provided on outer surface of a piston (7) slides on an inner surface of the tubular conductor (15); the insulative tube (3) is thereby reinforced against the pressure of an insulation gas sealed in the insulative tube (3). The piston (7) and the tubular conductor (15) are electrically connected in a stable manner and undesirable tottering of moving contacts (8), (16) mounted on the piston (7) can be prevented.