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:
Apr. 27, 1976
Filed:
Nov. 01, 1974
Applicant:
Inventors:
Gijsbert Kuus, Eindhoven, NL;
Piet Wiedijk, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ; H01J / ;
U.S. Cl.
CPC ...
313174 ; 313178 ; 313184 ; 417 48 ;
Abstract
A high-pressure gas discharge lamp having a discharge vessel provided with an aggressive gas filling, and electrodes between which the discharge takes place during operation. A hydrogen getter is placed within the discharge vessel and it consists of a getter material surrounded by a hydrogen-permeable wall. The getter material comprises at least a material of the group yttrium, lanthanum, the lanthanides and alloys of the said elements. The hydrogen permeable wall comprises at least one of the elements chromium, molybdenum, tungsten, tantalum, nickel and iron.