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.

Date of Patent:
Mar. 06, 1990

Filed:

Jul. 03, 1989
Applicant:
Inventors:

Hugh Menown, Writtle, GB;

Arthur Maitland, St. Andrews, GB;

Graeme L Clark, Chelmsford, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 95 ; 372 33 ;
Abstract

Laser apparatus includes hydrogen or deuterium buffer gas and dispenser reservoirs which contain a hydride or deuteride as appropriate. As gas molecules from the buffer gas are lost within the discharge tube due to trapping and sputtering processes, hydrogen or deuterium is given off from the surfaces of the reservoirs at a greater rate to maintain the vapor pressure within the discharge tube at a substantially constant level. Thus the laser apparatus may operate in a 'sealed-off' mode, that is without requiring that buffer gas be flowed through it.


Find Patent Forward Citations

Menown, Hugh. (1990). Laser apparatus (U.S. Patent No. 4907243). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4907243

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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