Intermittent vacuum filter apparatus incorporating a double valv

Details Intermittent vacuum filter apparatus incorporating a double valv Intermittent vacuum filter apparatus incorporating a double valv

1988-04-13

1989-08-15

Fisher, Richard V.

Liquid purification or separation

Filter

Vacuumized filtrate receiver

210400, 2104161, B01D 2902, B01D 3304

Patent

active

048571946

ABSTRACT:
A double valve arrangement is installed in intermittently operating vacuum filter apparatus in a pipeline connecting the filter means to a vacuum source to vent the line to atmosphere whenever the vacuum is shut off. This valve arrangement comprises a pipe section provided with a lateral opening, connected to the filter means, and with internal mutually facing annular shoulders disposed at respective sides of the lateral opening, and a piston-mounted sealing disc which is of smaller diameter than the pipe section and is reciprocable inside same to abut sealingly the one or the other of the shoulders and thereby bring the lateral opening into communication with the respective opposing end of the pipe section, which is connected, respectively, either to the vacuum source or to atmosphere. An annular gap is always present between the peripherly of the disc and the internal surface of the pipe section so that movement of the disc, e.g. at a frequency of 5 to 20 cycles per minute, is not impeded by rubbing.

REFERENCES:
patent: 2779477 (1957-01-01), Swensen
patent: 3870641 (1975-03-01), Pierson
patent: 4123360 (1978-10-01), Havalda
patent: 4186090 (1980-01-01), van Oosten
patent: 4495070 (1985-01-01), Pierson
patent: 4761226 (1988-08-01), Creps

Affiliated with

Also associated with

Rating

Intermittent vacuum filter apparatus incorporating a double valv does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Intermittent vacuum filter apparatus incorporating a double valv, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intermittent vacuum filter apparatus incorporating a double valv will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-119543