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:
Aug. 30, 1983
Filed:
Oct. 05, 1981
Applicant:
Inventor:
Robert M Hruda, Horseheads, NY (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
2001 / ; 313552 ;
Abstract
A hermetically sealed, partially evacuated switch is maintained at a non-oxidizing residual pressure of from about 10.sup.-1 to 10.sup.2 Torr by inclusion of selected hydrogen gettering metal hydride within the sealed switch envelope. The metal hydride is selected with a hydrogen equilibrium pressure at the switch operating temperature such that the pressure within the switch envelope is maintained in the desired range.