Sliding gate line blind

Details Sliding gate line blind Sliding gate line blind

1993-01-06

1993-08-03

Walton, George L.

Valves and valve actuation

With means to increase head and seat contact pressure

Gate valve

138 943, 251272, 251327, 251328, 251900, F16K 302, F16K 3312

Patent

active

052321991

ABSTRACT:
A sliding gate line blind for preventing fluids from traveling downstream from the blind including a body for connection to a pipeline, the body being open to the atmosphere and having an inner portion and an outer portion, the body having an entrance passage and an exit passage, an axially expanding gate assembly slidably received in the body for selectively sealing and opening the pipeline, the expanding gate assembly including two planar surfaces having openings therein for alignment with the entrance passage and the exit passage to permit flow through the pipeline and sealing surfaces for alignment with the entrance passage and exit passage to stop flow through downstream from the sliding gate line blind, and an actuator for moving the expanding gate assembly within the body to selectively seal and open the pipeline.

REFERENCES:
patent: Re20101 (1936-09-01), Laurent
patent: 2002647 (1935-05-01), Sorensen
patent: 2148628 (1939-02-01), Laurent
patent: 2385463 (1945-09-01), Penick
patent: 2954960 (1960-10-01), Dunbar et al.
patent: 3929316 (1975-12-01), Guthrie
patent: 4116419 (1978-09-01), Diehl et al.
patent: 4188016 (1980-02-01), Whaley
patent: 4246928 (1981-01-01), Burns et al.
patent: 4515174 (1985-05-01), Hollister et al.

Affiliated with

Also associated with

Rating

Sliding gate line blind does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2265225