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. 15, 1981
Filed:
Mar. 16, 1979
Hiroyuki Sasao, Amagasaki, JP;
Yoshihiro Ueda, Amagasaki, JP;
Hajimu Yoshiyasu, Amagasaki, JP;
Soichiro Okuda, Amagasaki, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A switch comprises an envelope including a pressure increasing compartment filled with an arc extinguishing fluid. A slit extends through one longitudinal side of the envelope to communicate with the compartment. A movable contact member having a flat cross section normally extends through the slit to block substantially the slit until the movable member engages a stationary contact member outside of the slit. The arc extinguishing fluid increases in pressure in response to heat of an electric arc established across the separated contact member and delivered through the slit to be perpendicular to the arc axis.