Fluid handling – Line condition change responsive valves – Direct response valves
Patent
1976-02-24
1980-02-19
Nilson, Robert G.
Fluid handling
Line condition change responsive valves
Direct response valves
F16K 1514
Patent
active
041889789
ABSTRACT:
This invention relates to a valve mechanism of a variety of uses. In one use the valve positively seals a line through which fluid flows against reverse or backflow of the fluids in any position in which the valve is disposed. In another use the valve mechanism functions as a vacuum breaker. In still another use it functions as a foot valve. The same valve structure is utilized in all of the aforesaid functions. Generally, the valve structure has a housing comprising an inlet member and an outlet member which are joined together. A flexible diaphragm is secured between the inlet and outlet members. One end of the inlet member is provided with a shoulder or flange adjacent the flexible diaphragm. One end of the outlet member is provided with a valve support seat adjacent the flexible diaphragm. The flexible diaphragm has apertures or orifices interiorly of its perimeter and a solid central portion. Under pressures exerted from the inlet side or the outlet side the diaphragm flexes from a position wherein its central portion abuts the valve support seat and the orifices are exposed for the flow of liquids to the outlet side to a position wherein the orifices are in proximity to the shoulder or flange and the central portion of the diaphragm seals the passage from the inlet member.
REFERENCES:
patent: 2462189 (1949-02-01), Hess
patent: 2497906 (1950-02-01), Peters et al.
patent: 2854996 (1958-10-01), Hughes
patent: 3601155 (1971-08-01), Brown
Nilson Robert G.
Plast-o-Matic Valves, Inc.
LandOfFree
Valve mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Valve mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve mechanism will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-649359