Filtering screen for use in apparatus for the dosing of powdered

Details Filtering screen for use in apparatus for the dosing of powdered Filtering screen for use in apparatus for the dosing of powdered

1980-10-31

1983-02-01

Skaggs, H. Grant

Dispensing

Fluid flow discharge

From movable trap chamber

222189, 222199, 222335, 406 63, G01F 1110

Patent

active

043711014

ABSTRACT:
An apparatus for the dosing of finely powdered material employs a volumetric chamber adapted to receive an amount predetermined by volume of the powdered material, and presenting a filtering screen through which pneumatic suction is applied for the taking up and compacting of the powdered material, and pneumatic pressure is applied for the discharge of the said powdered material.
The said filtering screen is made of a fabric of mono-filament synthetic material, and preferably of mono-filaments of a polytetrafluoroethylene resin, said mono-filaments constituting both the warp and the weft of the fabric.

REFERENCES:
patent: 3285296 (1966-11-01), Ishimaru et al.
patent: 3362640 (1968-01-01), Fainman
patent: 3430497 (1969-05-01), Tenczar
patent: 3645583 (1972-02-01), Heath
patent: 3748905 (1973-07-01), Fletcher et al.
patent: 4035303 (1977-07-01), Ufferfilge

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