Dispensing – Supply containers with traps – With trap chamber cutoffs
Patent
1992-04-06
1993-05-25
Shaver, Kevin F.
Dispensing
Supply containers with traps
With trap chamber cutoffs
137613, 222542, 222434, 251301, 2513351, 277 9, G01F 1128, B67D 300
Patent
active
052132374
ABSTRACT:
A low profile, lock-gate type of valve for handling dry particulate material forms a conduit therethrough, and a pair of curved flow control blades are mounted on arms and are pivoted with respect to the conduit, to define therebetween a flow measuring chamber, in which the blades are supplied with the convex surface facing the direction of flow in the conduit. The conduit is dog-legged within the valve to provide a low valve profile, and the blades are fully enclosed within the blade housing. A part of the enclosure walls form surfaces on which air cylinders are mounted for controlling the movement of the valve blades. The valve blade seals are accessible from an exterior wall of the valve and are replaceable by extraction through wall openings, and the valve seals are mounted on external brackets on the valve side walls so that they may be easily withdrawn and replaced.
REFERENCES:
patent: 2806489 (1957-09-01), Armstrong
patent: 2949275 (1960-08-01), Pro
patent: 3090593 (1963-05-01), Pro
patent: 3380475 (1968-04-01), Armstrong
patent: 3556358 (1971-01-01), Armstrong
patent: 3799187 (1974-03-01), Armstrong
patent: 3813015 (1974-05-01), Armstrong
patent: 3907178 (1975-09-01), Armstrong
patent: 3916949 (1975-11-01), Armstrong
patent: 5139048 (1992-08-01), Armstrong
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