Shutting-off device

Details Shutting-off device Shutting-off device

1978-06-13

1980-03-11

Leppink, James A.

Wells

Automatic

166 87, 166 95, 251 1R, E21B 3500

Patent

active

041923766

ABSTRACT:
The present invention relates to a device adapted to be fitted on a pipe end as an emergency device for shutting off fluid flowing out through the pipe under pressure, and is especially intended for use in drilling or extraction plants for oil. This device comprises two interconnected units provided with a throughpassage and includes means for guiding the device into position over the effluent fluid jet to permit pulling the device onto the pipe end, a means which senses the device as it achieves engagement with the pipe end and is adapted to branch off fluid from the jet at this moment, and cylinder-piston means or the like adapted to be actuated by such branched-off pressure fluid and arranged to act, on one hand, on clamping means for retaining the device to the pipe end and, on the other hand, on valve means for closing the throughpassage.

REFERENCES:
patent: 1455731 (1923-05-01), Kelly
patent: 1543637 (1925-06-01), Woll
patent: 1899922 (1933-03-01), Black
patent: 1968297 (1934-07-01), Hild
patent: 3241864 (1966-03-01), Shaffer

Affiliated with

Also associated with

Rating

Shutting-off device does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1997240