Boring or penetrating the earth – Bit or bit element – With helical-conveying portion
Reexamination Certificate
2007-08-21
2007-08-21
Thompson, Kenneth (Department: 3672)
Boring or penetrating the earth
Bit or bit element
With helical-conveying portion
C175S323000, C111S116000, C172S532000, C172S111000, C172S025000
Reexamination Certificate
active
11269110
ABSTRACT:
An auger planter for forming small holes in the earth for the planting of flower bulbs, plant seedlings and plants, and for the insertion of termite monitors and baits. The auger includes a central shaft and a single helical flighting having its leading edge configured to have a sickle blade shape with a cutting edge. The opposite end of the flighting has a portion which is directed in an essentially vertical orientation proximating an alignment parallelling the axis of shaft.
REFERENCES:
patent: 3175630 (1965-03-01), Hein et al.
patent: 3444940 (1969-05-01), Thomas et al.
patent: 4807710 (1989-02-01), Greeley
patent: 5067571 (1991-11-01), Niewold et al.
patent: 6161625 (2000-12-01), Mati
Bomar Shane
Gordon Laboratories, Inc.
LaPointe Dennis G.
Thompson Kenneth
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