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:
Jan. 12, 1982
Filed:
May. 12, 1980
Matsushita Electric Works, Ltd., Osaka, JP;
Abstract
This method of manufacturing gas-charging electric switches comprises a step of housing an electric switch in a container provided with two gas substituting ports and closing an opening of the container for the housing to render the container hermetical except at the gas substituting ports, a step of pouring a gas through one of the gas substituting ports of the container and discharging a gas in the container through the other gas substituting port to perform the gas substitution in the container and a step of tightly sealing the gas substituting ports with punches when the concentration of the charged gas in the container reaches a required level, and these steps are incorporated in other steps as sequential steps in the general atmosphere.