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:
Jan. 05, 1993
Filed:
Dec. 27, 1989
Applicant:
Inventor:
William G Boyle, Dallas, TX (US);
Assignee:
Otis Engineering Corporation, Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04F / ; F16K / ;
U.S. Cl.
CPC ...
137155 ; 1374875 ; 25112904 ; 25112919 ; 2511292 ;
Abstract
A flow control valve system for production of wells such as by gas lift including a downhole valve electrically or pressure pulse controlled from the surface including a valve having apparatus for controlling the flow rate through the valve by varying the valve orifice size over a continuous range and maintaining the orifice size constant when desired. Both rotary and poppet type valves are disclosed. Valve orifice size and well conditions are monitored downhole and transmitted to the surface for control of the valve.