Dispensing – Resilient wall – Supply container delivering to receiving chamber
Patent
1982-09-02
1985-07-16
Rolla, Joseph J.
Dispensing
Resilient wall
Supply container delivering to receiving chamber
222214, 417475, 417477, 417510, 406119, F04B 1912, B67D 508
Patent
active
045291063
ABSTRACT:
A metering and/or feeding unit for fluid materials, particularly dry particulate materials and semifluid materials, is disclosed. An elastic-walled tube having an open feed end and an open discharge end is vertically oriented. A power-driven assembly, including tube rollers, are adapted to constrict the elastic tube, beginning at its upper end and progressively moving down the length of the tube. The material being metered or fed is introduced into the elastic tube at its upper end and is progressively moved down the length of the tube as the tube roller of the power-driven assembly moves down the length of the tube. A valve is provided to prevent entry of material into the feed end of the tube at periodic intervals and in coordination with constriction of the tube so that when a tube roller initially engages the tube near the feed end of the tube, that portion of the tube is substantially free of material. The material being fed may be discharged into a plenum through which a stream of pressurized gas is discharged to convey the material to a work location.
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Broadfoot John T.
Broadfoot, Jr. John T.
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