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:
Aug. 21, 1984

Filed:

Nov. 19, 1981
Applicant:
Inventors:

Douglas W Nayler, Houston, TX (US);

Gerald W Gilson, Houston, TX (US);

Fred C Tilker, Houston, TX (US);

James W Albert, Houston, TX (US);

Assignee:

NL Industries, Inc., New York, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166355 ; 175-7 ; 175 27 ; 175 40 ;
Abstract

A motion compensator for disposition between an offshore support structure and an offshore well structure movable with respect thereto comprises a compensator assembly interconnected with the support structure and the well structure such that relative movement between said structures will cause movement within the compensator assembly, and a position indicator including a cam assembly for measuring the relative movement within the compensator assembly, and a transducer operatively associated with the cam assembly for translating its measurements into a signal.


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