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. 24, 1984
Filed:
Mar. 22, 1982
Applicant:
Inventor:
Teizo Fujita, Ibaraki, JP;
Assignee:
Izumi Denki Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200306 ;
Abstract
A small-sized relay and a method for fabricating the same are disclosed. The relay comprises a prefabricated relay mechanism and an insulating cover covering the relay mechanism. Prior to assembling the relay mechanism and cover, a laser machining device is utilized to form, in the cover, holes of very small diameter which permit flow of gas molecules therethrough but do not permit the flow of dust particles or liquid molecules therethrough. The prefabricated relay mechanism is covered with the cover formed with such holes, and the opening of the cover except the portion including the holes is closed to hermetically seal the relay mechanism.