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. 21, 1976
Filed:
Sep. 25, 1975
George J Panek, Phoenix, AZ (US);
International Telephone and Telegraph Corporation, New York, NY (US);
Abstract
A hermetic electrical penetrator comprising a shell mounted in a single penetrator plate. A pair of axially spaced sealing members are sealed inside the shell defining a leak sensing chamber therebetween. One or more electrical contacts extend longitudinally through the sealing members in the shell. A sensing port in the wall of the shell communicates with the sensing chamber so that any leakage of gas through the shell can be detected by measuring the pressure differential between the inside and the outside of the shell. Preferably the sealing members are glass beads, and a porous ceramic spacer extends between the beads substantially filling the leak sensing chamber so that pressure differentials may be more easily detected.