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:
Sep. 19, 1989
Filed:
Aug. 21, 1987
Applicant:
Inventor:
Bernard G Fidric, Woodland Hills, CA (US);
Assignee:
Litton Systems, Inc., Woodland Hills, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C / ;
U.S. Cl.
CPC ...
356350 ; 372 94 ;
Abstract
A ring laser gyro is shown which generates two or more laser beams that travel through a gain medium. The laser produces two bias components, one due to Langmuir flow and the second due to a thermal gradient. The invention uses a symmetrically mounted restriction in the gain portion of the laser passageways to control the flow of the gain medium. The non-gain portion of the passageways is also enlarged to reduce the effects of a thermal gradient on the flow of the medium.