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:
Oct. 10, 1978
Filed:
Oct. 20, 1976
Applicant:
Inventors:
Henry P Arendt, Dallas, TX (US);
Russell A Johnston, Dallas, TX (US);
Assignee:
Otis Engineering Corporation, Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166155 ; 166315 ; 166322 ;
Abstract
Disclosed is a pumpdown, retrievable, subsurface, safety valve for use in a well. The valve comprises a valve section including a valve member to control flow through the well tubing and one or more force exerting sections urging the valve member to a position blocking flow. The valve section and force exerting sections are interconnected. This abstract is neither intended to define the invention of the application which, of course, is measured by the claims, nor is it intended to be limiting as to the scope of the invention in any way.