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. 21, 1992
Filed:
Apr. 26, 1990
Robert A Doran, East Setauket, NY (US);
Joseph P Ficalora, Oak Ridge, NJ (US);
Allied-Signal Inc., Morris Township, Morris County, NJ (US);
Abstract
In a ring laser gyroscope a laser beam is directed to travel in a closed path, however, temperature variations can cause a change in the path length which, if not corrected, can result in drift and scale factor errors. The present invention controls the length of this closed path or cavity by applying a force to the gyro normal to the lasing plane. This is accomplished by inserting a bolt through the longitude axis of the gyro and by utilizing the bolt to apply or to relieve force therefore maintaining the cavity length constant over a given temperature range.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile