Fluid handling – Line condition change responsive valves – Direct response valves
Patent
1975-05-28
1977-04-26
Cline, William R.
Fluid handling
Line condition change responsive valves
Direct response valves
F16K 1502
Patent
active
040195325
ABSTRACT:
A flap valve, in particular a return flap valve, having a flat disc valve housing with an associated valve seat and a locking member which is actuated in a stroke and pivot movement by two control levers of different lengths, the control levers being pivotably mounted with one of their free ends on the valve housing and with the other free ends on the locking member, and the pivot axes of both control levers being arranged parallel with respect to each other. The two control levers are articulated with one of their ends at the front face of the surface side pointing to the valve seat and with their other ends within the cross section of the valve flowthrough channel at the inlet side in front of the valve seat on the valve housing.
REFERENCES:
patent: 2827921 (1958-03-01), Sherman et al.
patent: 3023774 (1962-03-01), Schuller
patent: 3658293 (1972-04-01), Gaebel
patent: 3804124 (1974-04-01), Finke et al.
patent: 3847373 (1974-11-01), Hagar
Cline William R.
Collard Allison C.
Gustav F. Gerdts KG
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