Metering apparatus for a seed planter

Details Metering apparatus for a seed planter Metering apparatus for a seed planter

1975-09-17

1976-12-28

Knowles, Allen N.

Dispensing

Jarring and/or vibrating

Hand manipulable shaker type

221211, 222410, B67D 554, G01F 1120

Patent

active

039996905

ABSTRACT:
An improved seed metering apparatus for use in a seed planter of the type having a seed storage hopper and a drop chute for depositing seeds into an underlying furrow comprises a rotatably driven seed metering disc having a plurality of seed receiving pockets about its periphery. As the planter is pulled forward the metering disc rotates and each pocket is caused to pass through a pressurized chamber wherein a predetermined number of seeds are picked up, and then to pass through a compartment of reduced pressure wherein the seeds are released into the drop chute. A pressure-sealed wear-resistant engagement is obtained between the seed metering disc and the chamber walls by means of replaceable wear plates mounted on the wall edges and a coil spring carried on the disc mounting shaft which causes the metering disc to bear against the wear plates during operation.

REFERENCES:
patent: 2314031 (1943-03-01), Colburn
patent: 3412908 (1968-11-01), Ferrault
patent: 3693833 (1972-09-01), Weitz

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