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:
Nov. 12, 2002
Filed:
Jun. 04, 1996
Gerhard George Lange, Apalachin, NY (US);
Robert Joseph Komar, Owego, NY (US);
David Luverne Vos, Apalachin, NY (US);
Lockheed Martin Corporation, Rockville, MD (US);
Abstract
An extended temperature operating range low pressure discharge lamp ( ) including: an envelope ( ) containing an ionizable medium ( ) at a selected pressure; an electrode ( ) sealed at each end of the envelope ( ) for sustaining an electric discharge through the ionizable medium; and a volume variation control for varying the volume of the ionizable medium ( ) in response in variations in temperature within the envelope, wherein the volume variation control includes at least one control volume (of gaseous pressure ) containing a specified volume of the ionizable medium and an aperture ( ) communicating between the envelope ( ) and the at least one control volume, wherein the at least one control volume includes a sliding piston ( ) for varying the volume of the ionizable medium ( ) within the envelope ( ).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile