Device for sealing the seed meter of a vertically folded plantin

Details Device for sealing the seed meter of a vertically folded plantin Device for sealing the seed meter of a vertically folded plantin

1992-09-29

1994-07-05

Crowder, Clifford D.

Planting

Drilling

Having depositor feature

221211, A01C 700

Patent

active

053258002

ABSTRACT:
A device for sealing the seed meter from the seed hopper of the agricultural planting unit when the unit is pivoted form its vertical planting configuration to its horizontal transport configuration. The device comprises a resilient and elastic sealing diaphragm that is located in the seed meter across from the seed meter disc. A pivotable frame is located in the other side of the diaphragm away from the seed meter disc and is used to expand the diaphragm so that it contacts the seed meter disc and seals the seed meter form the seed hopper. A counterweight is mounted to the pivotable frame for automatically pivoting the frame and sealing the seed meter when the planting unit is moved from its vertical planting configuration to its horizontal transport configuration.

REFERENCES:
patent: 4162744 (1979-07-01), Barker et al.
patent: 4515291 (1985-05-01), Holmes
patent: 4591167 (1986-05-01), Vossieck et al.
patent: 4664290 (1987-05-01), Martin et al.
patent: 4836412 (1989-06-01), Webber et al.
patent: 4896616 (1990-01-01), Wintersteiger et al.
patent: 4898108 (1990-02-01), McDermott
patent: 5058766 (1991-10-01), Deckler
patent: 5082126 (1992-01-01), Ribouleau
patent: 5170909 (1992-12-01), Lundie et al.
John Deere Advertising Brochure entitled "Accuracy Experts", cover and p. 20, published in USA, Aug. 1990.
John Deere Operator's Manual OM-H138100 Issue F8 entitled "7300 Vertical-Fold MaxEmerge 2 Planters", cover and pp. 35-37, published in USA, 1988.

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