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:
May. 16, 2006
Filed:
May. 03, 2002
Applicants:
Guy Harvey Mason, Hampshire, GB;
William Peter Stuart-bruges, Hampshire, GB;
Thomas Lempriere Searight, London, GB;
Ian Hitchcock, Berkshire, GB;
Inventors:
Guy Harvey Mason, Hampshire, GB;
William Peter Stuart-Bruges, Hampshire, GB;
Thomas Lempriere Searight, London, GB;
Ian Hitchcock, Berkshire, GB;
Assignee:
Sondex Limited, Hampshire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 17/07 (2006.01); F16F 7/116 (2006.01);
U.S. Cl.
CPC ...
Abstract
A shock absorbing tool for use in pipelines and oil wells, particularly in combination with perforation guns comprises a central mass supported on two springs between the end terminal members. The shock wave is absorbed in the free oscillation of the mass. The mass is constituted by a piston assembly. A steel rope permits the shock absorbing tool to be maneuvered within the bore hole without damage to the springs.