Method and apparatus for producing wells
Patent
·
OSTI ID:5678606
This patent describes a valve. It comprises a body having a flowway therethrough, ports through the side wall of the body, a slide valve member and seat controlling flow through the ports, a reciprocal actuator for shifting the slide valve member between open and closed position, a piston on the actuator exposed to a chamber for receiving pressure fluid from exterior of the body and urging the actuator toward slide valve member open position, resilient means for urging the actuator toward slide valve member closed position, a second valve seat in the body and around the flowway, and a second valve member cooperable with the second valve seat and in the path of the slide valve member and moved to the open position by the slide valve member when the actuator is in the slide valve open position.
- Assignee:
- Otis Engineering Corp., Dallas, TX (United States)
- Patent Number(s):
- A; US 5044443
- Application Number:
- PPN: US 7-569073
- OSTI ID:
- 5678606
- Country of Publication:
- United States
- Language:
- English
Similar Records
Submersible pump safety systems
Double gated valve
Fail safe gate valves and actuators therefor
Patent
·
Mon Dec 29 23:00:00 EST 1986
·
OSTI ID:7001413
Double gated valve
Patent
·
Mon Mar 09 23:00:00 EST 1992
·
OSTI ID:5355084
Fail safe gate valves and actuators therefor
Patent
·
Tue Sep 08 00:00:00 EDT 1987
·
OSTI ID:5826253