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:
Nov. 12, 1996
Filed:
May. 24, 1995
Applicant:
Inventor:
Jack C Hisaw, Carencro, LA (US);
Assignee:
Specialty Machine & Supply, Inc., Scott, LA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
16625007 ; 166385 ; 166125 ;
Abstract
An apparatus for use in an oil and gas well bore is disclosed. Generally, the apparatus comprises of a mandrel and a housing slidable on the mandrel. The apparatus will also include an engaging member for engaging the walls of the well bore. A spring disposed about the mandrel urges the mandrel into contact with the engaging member.