Fluid handling – Back flow prevention by vacuum breaking – Air vent in liquid flow line
Patent
1994-05-23
1995-10-03
Michalsky, Gerald A.
Fluid handling
Back flow prevention by vacuum breaking
Air vent in liquid flow line
137801, E03C 110, F16K 2402
Patent
active
054543967
ABSTRACT:
In a valve space surrounded by a housing is arranged a sleeve-shaped valve body made of elastomeric material. The valve body is fastened with a fastening end thereof to the housing, and a flow channel thereof is flow-connected to an inlet orifice. The valve body bears, with a middle portion of the valve body spanning a ventilation orifice, on a ventilation-valve seat formed on the housing. There adjoins the middle portion a bead which the end portion, bearing under prestressing on the valve-seat element, adjoins on the other hand. With water flowing in the direction of flow and also with an equal pressure prevailing on the inlet side and outlet side, the valve body bearing on the ventilation-valve seat prevents the outflow of water through the ventilation orifice. With a negative pressure prevailing on the feed side, the middle portion lifts off from the ventilation-valve seat, in order to ventilate the outlet orifice.
REFERENCES:
patent: 2270737 (1942-01-01), Langdon
patent: 2382427 (1945-08-01), Langdon
patent: 2675823 (1954-04-01), Langdon
patent: 2938532 (1960-05-01), Fraser
KWC AG
Michalsky Gerald A.
LandOfFree
Sanitary safety device for preventing the backflow of water does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sanitary safety device for preventing the backflow of water, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sanitary safety device for preventing the backflow of water will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1072470