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:
Mar. 01, 1977
Filed:
Oct. 31, 1975
Applicant:
Inventor:
Karl Gerhard Hernqvist, Princeton, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01J / ;
U.S. Cl.
CPC ...
250201 ; 219201 ; 331 / ; 331 / ;
Abstract
A gas laser has a tube for producing a laser beam and a plurality of heaters around the tube. A detector responds to a misalignment of the laser sending a response to control circuits for the heaters. In response to detector's output, the heater control circuits regulate the heaters so as to heat selective portions of the tube. The tube bends due to the heat resulting in a realignment of the laser.