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:
Aug. 23, 2016
Filed:
Mar. 12, 2013
Weatherford/lamb, Inc., Houston, TX (US);
James R. Dunphy, South Glastonbury, CT (US);
John J. Sgambelluri, Meriden, CT (US);
John Grunbeck, Northford, CT (US);
George Talmadge, Clinton, CT (US);
Robert F. Robinson, Middletown, CT (US);
James M. Sullivan, East Hampton, CT (US);
Joseph F. Robbins, Monson, MA (US);
WEATHERFORD TECHNOLOGY HOLDINGS, LLC, Houston, TX (US);
Abstract
An optical waveguide feedthrough assembly passes at least one optical waveguide through a bulk head, a sensor wall, or other feedthrough member. The optical waveguide feedthrough assembly comprises a cane-based optical waveguide that forms a glass plug sealingly disposed in a feedthrough housing. For some embodiments, the optical waveguide includes a tapered surface biased against a seal seat formed in the housing. The feedthrough assembly can include an annular gold gasket member disposed between the tapered surface and the seal seat. The feedthrough assembly can further include a backup seal. The backup seal comprises an elastomeric annular member disposed between the glass plug and the housing. The backup seal may be energized by a fluid pressure in the housing. The feedthrough assembly is operable in high temperature and high pressure environments.