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.

Date of Patent:
Dec. 29, 2015

Filed:

Mar. 08, 2013
Applicant:

Weatherford/lamb, Inc., Houston, TX (US);

Inventors:

James R. Dunphy, South Glastonbury, CT (US);

John J. Grunbeck, Northford, CT (US);

Bryan Boemmels, North Haven, CT (US);

Guy Daigle, Bristol, CT (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/44 (2006.01); G02B 6/42 (2006.01); G01D 5/353 (2006.01); G02B 6/02 (2006.01);
U.S. Cl.
CPC ...
G02B 6/4428 (2013.01); G01D 5/35316 (2013.01); G02B 6/4248 (2013.01); G02B 6/022 (2013.01); G02B 6/02204 (2013.01);
Abstract

An optical transducer is provided. A 'measuring' portion of the transducer may be exposed to a high pressure and fluids when the optical transducer is deployed (e.g., in a wellbore or other industrial setting). The transducer may include an optical waveguide with a first portion that forms a first seal that isolates an 'instrumentation' portion of the transducer from exposure to the high pressure and fluids to which the measuring portion may be exposed. The transducer may also include a second seal with a “stack” of material elements that contact a second portion of the optical waveguide to also isolate the instrumentation portion of the transducer from exposure to the high pressure and fluids to which the measuring portion may be exposed.


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