Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1974-06-17
1976-06-29
Weakley, Harold W.
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
13750518, 137599, F16K 3112
Patent
active
039659291
ABSTRACT:
Three elongated tubular members are disposed within one another, the second member being spaced inwardly of the first member to form a fluid channel therewith and sealed and extending through a transverse wall dividing the first member into two chambers, the third member being in sliding engagement within a passageway in the second member communicating with ports through the second member on opposite sides of the transverse wall in communication with the channel. The third member is provided with a recess communicating with the ports. The first member has two open ends, the second member has an open downstream end and closed upstream end and both opposite ends of the third member are closed. Biasing means are provided in the upstream end of the second member in connection with the adjacent end of the third member to control the third member into a channel closing position when fluid back pressure builds up in the valve or drops to zero and into a fluid channel opening position when the back pressure is relieved to normal flow levels.
REFERENCES:
patent: 942042 (1909-11-01), Petley
patent: 1044053 (1912-11-01), Huxford
patent: 1050763 (1913-01-01), Cooper
patent: 2633147 (1953-03-01), Badami
patent: 2805680 (1957-09-01), Longbottom
patent: 3374803 (1968-03-01), Leveque
Bissell Henry M.
Weakley Harold W.
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