Cutlery
Patent
1977-07-05
1979-02-06
Saifer, Robert W.
Cutlery
B65G 5348
Patent
active
041381629
ABSTRACT:
An apparatus for piped conveyance of material. The material to be conveyed is introduced into a conveyor pipe where it is caused to pass through a blocking section located upstream of a location where compressed air is introduced into the conveyor pipe. In the blocking section, which has an increasing through-flow area in the conveying direction, a material plug is formed by the action of compressed air introduced at the downstream end thereof. The plug seals in a direction upstream and is at its downstream end continuously broken up and blown downstream by means of compressed air.
REFERENCES:
patent: 2127693 (1938-08-01), McCanless et al.
Rowland James L.
Saifer Robert W.
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