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:
Nov. 10, 2015
Filed:
Jan. 15, 2014
Honeywell International Inc., Morristown, NJ (US);
Charles D. Chappell, Treasure Island, FL (US);
Kara L. Warrensford, Tampa, FL (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A fiber optic sensing coil apparatus for a fiber optic gyroscope is provided. In at least one embodiment, the fiber optic sensing coil apparatus comprises a housing providing a hermetically sealed chamber and an optical fiber disposed within the hermetically sealed chamber of the housing, wherein the optical fiber is disposed in a coil. A gas including oxygen is disposed in the hermetically sealed chamber between the coil of the optical fiber and the housing. Moreover, an adhesive is amongst the optical fiber, wherein the adhesive holds the optical fiber together in the coil; and, a layer of oxygen blocking material is disposed on an outer surface of the coil of optical fiber, wherein the oxygen blocking material has an oxygen transmission rate less than 15 cc/m/day.