Nursery stocks digging machine

Details Nursery stocks digging machine Nursery stocks digging machine

1974-12-16

1976-08-31

Pellegrino, Stephen C.

Excavating

Peat excavators

A01G 2304

Patent

active

039770990

ABSTRACT:
The digging machine according to the present invention includes pairs of spherical blades which are rotated beneath a plant for forming a root ball and removing the plant. By operation of a pair of parallelogram linkages, the spherical blades are rotated beneath the surface of the ground, and spherical blade covers are moved downwardly to encompass the upper part of a root ball for convenient removal thereof.

REFERENCES:
patent: 2549476 (1951-04-01), Johnson
patent: 2990630 (1961-07-01), Granford
patent: 3045368 (1962-07-01), Whitcomb
patent: 3078602 (1963-02-01), Holopainen
patent: 3163944 (1965-01-01), Whitcomb
patent: 3713234 (1973-01-01), Grover et al.
patent: 3739823 (1973-06-01), Bartell

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