Metering device for a powdery material

Details Metering device for a powdery material Metering device for a powdery material

1975-11-07

1977-11-01

Reeves, Robert B.

Fluent material handling, with receiver or receiver coacting mea

Miscellaneous

340239R, 366191, B65B 106

Patent

active

040562344

ABSTRACT:
At the outlet of the duct for the powdery material is provided a movable diaphragm where orifice is adapted to engage a clearing fixed pin when the flow rate of said material reaches a predetermined low threshold. Said diaphragm is controlled by clearance actuating means comprising a pneumatic jack adapted to be supplied with compressed air through an electro-valve whose control input is connected to the output of a flow detector.

REFERENCES:
patent: 707544 (1902-08-01), Bates
patent: 964433 (1910-07-01), Kinsley
patent: 1213634 (1917-01-01), Havassy
patent: 2561763 (1951-07-01), Waters et al.
patent: 2955466 (1960-10-01), Coles
patent: 3276248 (1966-10-01), Cyr
patent: 3284788 (1966-11-01), Hudson
patent: 3387489 (1968-06-01), Young
patent: 3446979 (1969-05-01), Ricciardi
patent: 3840155 (1974-10-01), Frye et al.

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