Dispensing – With conveying conduit jacket and/or inert atmosphere...
Patent
1979-09-27
1981-11-10
Rolla, Joseph J.
Dispensing
With conveying conduit jacket and/or inert atmosphere...
222461, 222505, 222545, 222558, 137613, F16K 31524
Patent
active
042993385
ABSTRACT:
Valve system having a primary valve for excluding air, mounted in series with a secondary valve for controlling the flow of powder.
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patent: 3622045 (1971-11-01), Delaney et al.
patent: 4108337 (1978-08-01), Iijima
Forkey Paul W.
Jain Sulekh C.
Blodgett Gerry A.
Blodgett Norman S.
Handren Frederick R.
Rolla Joseph J.
Wyman-Gordon Company
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