Self-operated protection device for pipeline

Details Self-operated protection device for pipeline Self-operated protection device for pipeline

2005-05-24

2005-05-24

Hepperle, Stephen M. (Department: 3753)

Fluid handling

Line condition change responsive valves

Safety cut-off requiring reset

C137S486000, C137S489500

Reexamination Certificate

active

06895994

ABSTRACT:
A protection device which is capable of cutting off a pipeline when the pipeline leaks due to the rupture of the pipe self-operatedly closes the pipeline using fluid kinetic energy. A control rod converts linear movement of a piston into the opening and closing movement of a main valve core. The piston separates a hydraulic cylinder chamber into a first chamber and a second chamber. A restoring spring in the first chamber restores a control piston to an initial position. A control valve in the second chamber controls discharge of fluid from the second chamber. A flow state-sensing device introduces fluid in the fluid pipe to the second chamber when the fluid pipe ruptures and leaks.

REFERENCES:
patent: 2266533 (1941-12-01), Brisbane et al.
patent: 3489165 (1970-01-01), Salerno
patent: 4004607 (1977-01-01), Freese
patent: 4442680 (1984-04-01), Barbier et al.
patent: 2689607 (1993-10-01), None
patent: 2716950 (1995-09-01), None
patent: 2741137 (1997-05-01), None

Affiliated with

Also associated with

Rating

Self-operated protection device for pipeline does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-operated protection device for pipeline, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-operated protection device for pipeline will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3399482