Fluid handling – With cleaner – lubrication added to fluid or liquid sealing... – Cleaning or steam sterilizing
Patent
1987-04-13
1988-10-18
Rosenthal, Arnold
Fluid handling
With cleaner, lubrication added to fluid or liquid sealing...
Cleaning or steam sterilizing
251 44, 137244, F16K 31383, F16K 5100
Patent
active
047779756
ABSTRACT:
A self-closing valve is provided at a zone of a circumferential wall section of its housing that bounds a relief chamber with a stripping and holding-back arrangement which includes a saw-tooth formation constituted by a plurality of teeth and is situated at an end portion of the wall section that is close to the inlet of the valve housing. The teeth of the formation have respective substantially radially extending flanks and steep inclined flanks which are operative for stripping off contaminant particles which are entrained for joint movement by a sealing lip of a piston seal that is mounted for joint movement on a valve piston received in the wall section from the sealing lip during the movement of the valve toward its closing position, and for holding such contaminant particles back during the movement of the valve piston towards its open position. The zone provided with the formation is exposed to the action of the fluid medium flowing between the inlet and the outlet of the valve housing when the valve piston is out of its closing position, so that the contaminant particles are flushed by the flow of the fluid medium away from the zone containing the saw-tooth formation.
REFERENCES:
patent: 1571396 (1926-02-01), Darraw
patent: 2329001 (1943-09-01), Robinson
patent: 3036587 (1962-05-01), Silver
patent: 3131716 (1964-05-01), Griswold et al.
patent: 3315696 (1967-04-01), Hunter
LandOfFree
Self-closing valve 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-closing valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-closing valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1189191