Fluid handling – Line condition change responsive valves – Direct response valves
Patent
1980-09-18
1981-12-08
Cline, William R.
Fluid handling
Line condition change responsive valves
Direct response valves
F16K 1516
Patent
active
043042651
ABSTRACT:
This present invention pertains to a flap valve particularly used with and in chemical pumps. This valve is spring-biased to and toward a port formed in a wall of the pump. The valve includes a laminate structure at the hinge area which provides alternate Teflon and corrosion resistant, bright sheet stainless steel riveted together with front and back facing portions also of Telfon. The laminated portion has extending portions of each laminate member and in each of these portions are formed elongated apertures that are aligned to provide vertically elongated slotted holes sized to slide on the shanks of studs mounted in the wall of the pump. The extending portion of the laminate is mounted with front and back spacer members so that the laminate portion is spaced from the wall about the extent of the front facing portion. The laminated extending portion with the elongated apertures, when mounted on the studs, allows a sliding association of one member to an adjacent member so that as the valve is swung inwardly from the wall to permit fluid flow the metal members, although slightly displaced, urge the flap valve assembly toward and to a closing condition when the fluid pressure is reduced or absent.
REFERENCES:
patent: 2434734 (1948-01-01), Buschmann
patent: 3664775 (1972-05-01), Stiberg
patent: 3939867 (1976-02-01), Lundvik et al.
patent: 3994319 (1976-11-01), Airhart
patent: 4257457 (1981-03-01), Namura et al.
patent: 4257458 (1981-03-01), Kondo et al.
Cline William R.
Roberts Ralph R.
LandOfFree
Spring-biased flap valve for chemical pump and the like does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Spring-biased flap valve for chemical pump and the like, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spring-biased flap valve for chemical pump and the like will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-563822