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. 25, 1982
Filed:
Jul. 01, 1980
Applicant:
Inventor:
Thomas R Bishop, Houston, TX (US);
Assignee:
Bowen Tools, Inc., Houston, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
F16D / ; E21B / ;
U.S. Cl.
CPC ...
464 18 ; 175321 ; 267125 ; 464 24 ;
Abstract
A shock absorber assembly for absorbing shocks encountered by a drill string having a working fluid flowing therethrough wherein the shock absorber assembly includes a housing affixed to the drill string, a mandrel mounted for reciprocal longitudinal movement with respect to the housing, and a fluid dampening member replaceably sandwiched between the mandrel and housing for absorbing shocks transmitted between the mandrel and the housing during drilling operations.