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:
Dec. 13, 1983
Filed:
Aug. 19, 1982
Applicant:
Inventors:
William H Pullin, Dallas, TX (US);
Olen R Long, Celina, TX (US);
Assignee:
Otis Engineering Corporation, Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21B / ;
U.S. Cl.
CPC ...
166322 ; 166189 ; 166323 ; 137 / ; 137 71 ; 251 635 ; 251 73 ; 251 92 ; 251230 ;
Abstract
A control valve for a passageway in which the valve is reciprocated toward and away from its seat by pressure within a pressure dome and pressure exteriorly of the valve housing and in which reciprocation is controlled by a J-slot capable of latching the valve in open position while being run and releasing the valve for reciprocation after being landed in the well together with a frangible disc which may be ruptured to permit flow past the valve member; said valve being used to control flow through a H mandrel in a pumpdown system.