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:
Jul. 11, 1995
Filed:
Mar. 09, 1993
Applicant:
Inventors:
John M Canfield, Woodland Hills, CA (US);
Charles H Volk, Newbury Park, CA (US);
James D Assendrup, Thousand Oaks, CA (US);
Christine E Geosling, Calabasas, CA (US);
Ann T Nicol, Calabasas, CA (US);
Assignee:
Litton Systems, Inc., Beverly Hills, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C / ;
U.S. Cl.
CPC ...
356350 ; 372 94 ;
Abstract
A ring laser gyroscope has an electrically insulating barrier ring placed between the grounded metal mounting device and the frame, which is formed of a lithium aluminosilicate material that contains mobile ions. The barrier ring prevents migration of the ions from the frame material to the mirrors that are used to direct the counterpropagating waves around the closed path in the ring laser gyroscope.