Flow controller

Details Flow controller Flow controller

1991-03-13

1991-12-10

Cohan, Alan

Fluid handling

Processes

Involving pressure control

13762411, G05D 1600

Patent

active

050708970

ABSTRACT:
In a flow controller, a housing structure connectable in a process line is adapted to receive a process fluid from an upstream pump and to discharge the process fluid to a downstream device. A flow restrictor mounted in the housing structure is movable between an operative position wherein the flow restrictor coacts with the housing structure to define a restricted orifice and an inoperative position. A piston movable within a hydraulic cylinder is connected, via a shaft, to the flow restrictor. A valve controlled by a timer admits a hydraulic fluid, preferably water, into the hydraulic cylinder to move the piston, so as to move the flow restrictor to the operative position and hold it, and permits the hydraulic fluid to drain after a timed interval sufficient to permit the process fluid to fill the process line between the flow controller and the downstream device.

REFERENCES:
patent: 3400734 (1968-09-01), Rosenberg
patent: 3943972 (1976-03-01), Bitonti
patent: 4478245 (1984-10-01), Bender
patent: 4535812 (1985-08-01), Miller
patent: 4673162 (1987-06-01), Lachmann

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1033789