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:
Mar. 18, 2008

Filed:

Feb. 06, 2003
Applicants:

Philip John Nash, Dorchester, GB;

Jonathan James Westhall, Dorchester, GB;

Geoffrey Alan Cranch, Washington, DC (US);

Michael Steven Henshaw, South Wales, GB;

John Anstiss Churchill, South Wales, GB;

Inventors:

Philip John Nash, Dorchester, GB;

Jonathan James Westhall, Dorchester, GB;

Geoffrey Alan Cranch, Washington, DC (US);

Michael Steven Henshaw, South Wales, GB;

John Anstiss Churchill, South Wales, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 1/20 (2006.01); G01V 1/22 (2006.01); G01H 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An optical sensor assembly including a coupler and an optical fibre coil. The coupler is attached to the central member of the cable at a position where outer layers of the cable been removed. A first terminal of the coupler is connected to an optical fibre traveling along the cable in a fibre conduit external to the central strength member. A second terminal of the coupler is connected to a first end of the coil and a third terminal of the coupler is connected to an optical fibre a mirrored end. The coil is supported about a tubular mandrel, which mandrel fits over the cable. The other end of the coil is attached to the fibre in the cable. The mandrel is located about the cable at a position covering the coupler and the part of the cable where the outer layers are removed.


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