Valves

Details Valves Valves

E - Fixed Constructions

21

B

166/41

E21B 34/12 (2006.01)

Patent

CA 1238573

ABSTRACT OF THE DISCLOSURE There is disclosed a valve for closing a well bore to flow therethrough automatically in response to the loss of a controlled condition. The valve has springs in which energy may be generated, in response to bleeding off of pressure above the closed valve. So long as the controlled condition is maintained, the return of a pressure balance across the closed valve will permit the release energy generated in one of the springs to open the valve. The loss of the controlled condition releases further energy generated in the other spring to close the valve.

490938

Affiliated with

Also associated with

Rating

Valves does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Valves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valves will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1205852