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:
May. 22, 1984

Filed:

Feb. 12, 1981
Applicant:
Inventor:

Douglas W Nayler, Kingwood, TX (US);

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02D / ; E21B / ; E21B / ; F16F / ;
U.S. Cl.
CPC ...
405195 ; 175-7 ; 166355 ; 267124 ; 114264 ;
Abstract

The invention pertains to motion compensators and compensator systems, particularly adapted for disposition between an offshore platform and a riser or conductor pipe. Each compensator includes a cylinder with a piston reciprocably mounted therein, the piston rod protruding from one end of the cylinder. That one end of the cylinder is directed toward and connected to either the platform or the riser pipe, with its other end being directed toward the other of those two bodies. Link rods are independently connected to the protruding part of the piston rod and extend longitudinally toward said other end of the cylinder for connection to said other of the two bodies. A compressible fluid is disposed between the piston and said other end of the cylinder to resist movement of the piston toward said other end and thereby resist movement of the platform and the riser pipe away from each other.


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