Article dispensing – With discharge assistant – Fluid pressure
Patent
1990-05-03
1992-01-21
Skaggs, H. Grant
Article dispensing
With discharge assistant
Fluid pressure
221203, 221211, 221277, 432105, B65G 5900
Patent
active
050821415
ABSTRACT:
A feeding device singulates, orients, and delivers seeds and other comparatively smooth-surfaced particulate material to a desired destination. The device comprises a horizontal rotating drum having an inner surface cut with a spiral groove for orienting ellipsoid-shaped particles and advancing them to the location of pickup orifices within the drum. A vacuum valve alternately subjects the orifices to vacuum and ambient pressure for picking up the individual particles and releasing them to the desired point of delivery.
REFERENCES:
patent: 3245154 (1966-04-01), Bojner et al.
patent: 3741717 (1973-06-01), Triplett
patent: 3860146 (1975-01-01), Bauman et al.
patent: 3900131 (1975-08-01), Ehrlich
patent: 4148414 (1979-04-01), Parks, Jr.
patent: 4516690 (1985-05-01), Andersson
patent: 4898564 (1990-02-01), Gunn et al.
Y. Pomeranz et al., "Wheat Hardness Determined by a Single Kernel Compression Instrument with Semiautomated Feeder," Cereal Chem. 65(2): 86-94 (1988).
Brabec Daniel L.
Martin Charles R.
Rousser Robert
Fado John D.
Nguyen Tuan N.
Ribando Curtis P.
Silverstein M. Howard
Skaggs H. Grant
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