Seed drill

Details Seed drill Seed drill

1975-11-17

1977-05-31

Hoffman, Drayton E.

Article dispensing

With discharge assistant

Article adhering or gripping type

111 77, 302 25, B65H 308

Patent

active

040264378

ABSTRACT:
An apparatus for metering and transporting particulate material, particularly seeds, in which suction is continuously applied to holes in a surface of a drum to enable the particles to be picked up by the drum, an air pressure device being provided to produce an air stream for entraining and accelerating the particles along a transport passage away from the drum surface.

REFERENCES:
patent: 1637834 (1927-08-01), Oliver
patent: 2183606 (1939-12-01), Day
patent: 3156201 (1964-11-01), Tweedale
patent: 3387746 (1968-06-01), Whipper
patent: 3482735 (1969-12-01), Goulter

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