Cutlery
Patent
1976-11-05
1978-01-10
Stoner, Jr., Bruce H.
Cutlery
B65G 5316
Patent
active
040676226
ABSTRACT:
Conveyor gas is passed through a conveyor conduit to convey bulk material therethrough, while clean gas is passed through a by-pass conduit connected to the conveyor conduit at positions spaced along the length of the conduits. The by-pass conduit can be divided into a plurality of sections by shut-off valves which close in response to a predetermined pressure difference between the two conduits, with a reduced pressure in the conveyor conduit due to a blockage of material therein. Due to the pressure difference, clean gas is transferred from the by-pass to the conveyor conduit at a plurality of said connections between the two conduits, only in the respective section in which there is the pressure difference.
REFERENCES:
patent: 2897005 (1959-07-01), Wiltse
patent: 3929379 (1975-12-01), Krambrock
Eberhard Norbert
Heep Dieter
Krambrock Wolfgang
Jeffery Donald D.
Nase Jeffrey V.
Stoner Jr. Bruce H.
Waeschle Maschinenfabrik GmbH
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