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:
Jun. 16, 1998
Filed:
Jul. 26, 1995
Applicant:
Inventor:
Peter Heimlicher, Freiburg, CH;
Assignee:
Optosys AG, Villars-sur-Glane, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
174 5061 ; 29447 ; 174D / ;
Abstract
A ceramic portion is inserted in the front side of the housing envelope by shrinking. At the the junction of these parts, a sealing layer, preferably a galvanized copper layer, is applied plied which ensures a connection which under the resulting pressure is impermeable to gases and humidity. The ceramic portion is exposed to a strong radial pressure prestress with the result that the tensile stress of the ceramic portion is reduced and thus the pressure resistance thereof is increased under the effect of an axially acting external pressure.