Fluid handling – Diverse fluid containing pressure systems – Fluid separating traps or vents
Patent
1978-01-30
1980-08-12
Cohan, Alan
Fluid handling
Diverse fluid containing pressure systems
Fluid separating traps or vents
137613, F16K 1700
Patent
active
042167914
ABSTRACT:
A check valve is inserted in a tubing such as a catheter for transmission of dry gas such as to the bladder of a person. It prevents the flow of liquid such as urine through it by means of a plug of a foam material which permits the flow of dry gas through it and past end discs of a material which expands in the presence of liquid to plug up the passageway of the valve thereby preventing liquid from flowing through it.
REFERENCES:
patent: 2601216 (1952-06-01), White
patent: 2713871 (1955-07-01), Kroder
patent: 2734521 (1956-02-01), Hencken
Cohan Alan
Mon Donald D.
LandOfFree
Reflux check 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 Reflux check valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reflux check valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2178850