Note: Claims are shown in the official language in which they were submitted.
The embodiments of the invention in which an
exclusive property or privilege is claimed are defined
as follows:
1. An auger planter for the forming of small diameter
holes in the soil of a depth suitable for the planting
of flower bulbs and the like, comprising a helical
flighting for advancing into the soil and a central
shaft extending substantially axially through said
helical flighting, said central shaft terminating at one
end in a leading end of said shaft, said helical
flighting terminating in a leading edge proximate to
said leading end of said shaft, said helical flighting
having an outer helically extending edge, said leading
edge being defined by a chord portion extending
chordally substantially across the flighting on one side
of said shaft to a point of intersection with said
helically extending edge and away from the direction of
advance of said flighting into the soil, said helical
flight having a diameter and distance between adjacent
flights which are approximately equal to each other,
said helical flighting extending more than one
revolution about said shaft and along said shaft for a
distance greater than the depth of the hole to readily
lift the soil from the hole as the flighting is advanced
into the hole, and said leading edge further including a
radial portion extending outwardly from said central
shaft to a point of intersection with said chord
portion.
2. The auger of claim 1 wherein said leading end of
said shaft is tapered.
3. The auger of claim 2 wherein said taper is
approximately 30°.
4. The auger of claim 1 wherein the other end of said
central shaft has an end portion adapted to be mounted
in a hand held drill.
5. The auger of claim 4 wherein the outer diameter of
said central shaft is greater than the outer diameter of
said end portion adapted to be mounted in the drill.
6. The auger of claim 1 wherein said radial portion
and said chord portion intersect each other at an obtuse
angle.
7. The auger of claim 1 wherein the other end of said
helical flighting opposite said leading edge terminates
in a trailing edge, said trailing edge having a chord
portion extending chordally substantially across the
flighting from adjacent one side of said shaft to a
point of intersection with said helically extending edge
and toward the direction of advance of the flighting
into the soil.
8. The auger of claim 7 wherein said trailing edge
further includes a radial portion extending outwardly
from said central shaft to a point of intersection with
said trailing edge chord portion.
9. The auger of claim 7 wherein said leading edge
chord portion and said trailing edge chord portion are
substantially planar to each other in a plane extending
substantially parallel to the axis of said central
shaft.
10. The auger of claim 8 wherein at least one of said
leading and trailing edges are blunt.
11. An auger planter for the forming of small diameter
holes in the soil of a depth suitable for the planting
of flowers bulbs and the like, comprising an auger
having a central shaft and helical flighting for
advancing into the soil, said central shaft terminating
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at one end in a tapered leading end, the other end of
said central shaft terminating in a trailing end adapted
to be mounted in a hand help power drill, said flighting
terminating in a leading edge proximate to said shaft
leading end, said leading edge being blunt and having a
chord portion extending chordally substantially across
said flighting, said chord portion being angularly
disposed to said central shaft such that the line of
sight along said chord portion does not intersect the
center of said central shaft and away from the direction
of advance of said flighting into the soil, said helical
flighting having a diameter and distance between
adjacent flights which are approximately equal to each
other, said helical flighting extending more than one
revolution about said shaft along said shaft for a
distance greater than the depth of the hole to readily
lift soil from the hole as the flighting is advanced
into the hole.
12. The auger of claim 11 wherein the end of said
helical flighting opposite said leading edge terminates
in a trailing edge, said trailing edge having a chord
portion extending on one side of said shaft, said
trailing edge chord portion being angularly disposed to
said central shaft such that the line of sight along
said chord portion does not intersect the center of said
central shaft.
13. The auger of claim 12 wherein said leading edge
chord portion and said trailing edge chord portion are
substantially planar to each other in a plane extending
substantially parallel to the axis of said central
shaft.
14. The auger of claim 13 wherein said leading edge
further includes a radial portion extending outwardly
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from said central shaft to a point of intersection with
the radially inner portion of said leading edge chord
portion, said trailing edge also including a radial
portion extending outwardly from said central shaft to a
point of intersection with said trailing edge chord
portion, said leading edge radial portion and leading
edge chord portion intersecting each other at an obtuse
angle, and said trailing edge radial portion and said
trailing edge chord portion intersect at an obtuse
angle.
15. The auger of claim 12, wherein said leading edge
and trailing edge chord portions extend respectively
away from and toward the direction of advance of the
flighting into the soil.
16. An auger planter for the forming of small diameter
holes in the soil for the planing of flower bulbs and
the like, comprising a helical flighting for advancing
into the soil and a central shaft extending
substantially axially through said helical flighting,
said central shaft terminating at one end in a leading
end of said shaft, said helical flighting terminating in
a leading edge proximate to said leading end of said
shaft, said helical flighting having an outer helically
extending edge, said leading edge being defined by a
chord portion extending chordally substantially across
the flighting on one side of said shaft to a point of
intersection with said helically extending edge and away
from the direction of advance of said flighting into the
soil, the other end of said helical flighting opposite
said leading edge terminating in a trailing edge, said
trailing edge having a chord portion extending chordally
substantially across the flighting from adjacent one
side of said shaft to a point of intersection with said
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helically extending edge and toward the direction of
advance of the flighting into the soil, and said helical
flighting having a diameter and distance between
adjacent flights to readily lift the soil from the hole
as the flighting is advanced into the hole.
17. The auger of claim 16 wherein said trailing edge
further includes a radial portion extending outwardly
from said central shaft to a point of intersection with
said trailing edge chord portion.
18. The auger of claim 16 wherein said leading edge
chord portion and said trailing edge portion are
substantially planar to each other in a plane extending
substantially parallel to the axis of said central
shaft.
19. The auger of claim 16 wherein said trailing edge
chord portion extends entirely across said flighting on
one side of the shaft.
20. The auger of claim 16 wherein said leading edge
chord portion extends entirely chordally across said
flighting on one side of said shaft, said trailing edge
chord portion extends entirely chordally across said
flighting on one side of said shaft, and said leading
edge chord portion and said trailing edge chord portion
are substantially planar to each other in a plane
extending substantially parallel to the axis of said
central shaft.
21. An auger planter for the forming of small diameter
holes in the soil for the planting of flower bulbs and
the like, comprising an auger having a central shaft and
helical flighting for advancing into the soil, said
central shaft terminating at one end in a tapered
leading end, the other end of said central shaft
terminating in a trailing end adapted to be mounted in a
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hand held power drill, said flighting terminating in a
leading edge proximate to said shaft leading end, said
leading edge having a chord portion extending chordally
substantially across said flighting, said chord portion
being angularly disposed to said central shaft such that
the line of sight along said chord portion does not
intersect the center of said central shaft and away
from the direction of advance of said flighting into the
soil, the end of said helical flighting opposite said
leading edge terminating in a trailing edge, said
trailing edge having a chord portion extending chordally
substantially across said flighting on one side of said
shaft, said trailing edge chord portion being angularly
disposed to said central shaft such that the line of
sight along said chord portion does not intersect the
center of said central shaft, said leading edge and
trailing edge chord portions extending respectively away
from and toward the direction of advance of the
flighting into the soil, and said helical flighting
having a diameter and distance between adjacent flights
to readily lift soil from the hole as the flighting is
advanced into the hole.
22. An auger planter for the forming of small diameter
holes in the soil of a depth suitable for the planting
of flower bulbs and the like, comprising a helical
flighting for advancing into the soil and a central
shaft extending substantially axially through said
helical flighting, said central shaft terminating at one
end in a leading edge proximate to said leading end of
said shaft, said helical flighting having an outer
helically extending edge, said leading edge being
defined by a chord portion extending chordally
substantially across the flighting on one side of said
shaft to a point of intersection with said helically
extending edge and away from the direction of advance of
said flighting into the soil, said helical flighting
having a diameter and distance between adjacent flights
which are approximately equal to each other, said
helical flighting extending more than one revolution
about said shaft and along said shaft for a distance
greater than the depth of the hole to readily lift the
soil from the hole as the flighting is advanced into the
hole, and wherein the other end of said helical
flighting opposite said leading edge terminates in a
trailing edge, said trailing edge having a chord portion
extending chordally substantially across the flighting
from adjacent one side of said shaft to a point of
intersection with said helically extending edge and
toward the direction of advance of the flighting into
the soil.
23. The auger of claim 22 wherein said trailing edge
further includes a radial portion extending outwardly
from said central shaft to a point of intersection with
said trailing edge chord portion.
24. The auger of claim 22 wherein said leading edge
chord portion and said trailing edge chord portion are
substantially planar to each other in a plane extending
substantially parallel to the axis of said central
shaft.
25. The auger of claim 22 wherein said trailing edge
chord portion extends entirely across said flighting on
one side of the shaft.
26. The auger of claim 22 wherein said leading edge
chord portion extends entirely chordally across said
flighting on one side of said shaft, said trailing edge
chord portion extends entirely chordally across said
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flighting on one side of said shaft, and said leading
edge chord portion and said trailing edge chord portion
are substantially planar to each other in a plane extend-
ing substantially parallel to the axis of said central
shaft.
27. The auger of claim 22 wherein at least one of said
leading and trailing edges are blunt.
28. An auger planter for the forming of smaller diam-
eter holes in the soil of a depth suitable for the plant-
ing of flower bulbs and the like, comprising a helical
flighting for advancing into the soil and a central
shaft extending substantially axially through said heli-
cal flighting, said central shaft terminating at one end
in a leading end of said shaft, said helical flighting
terminating in a leading edge proximate to said leading
end of said shaft, said helical flighting having an
outer helically extending edge, said leading edge being
defined by a chord portion extending chordally entirely
across the flighting on one side of said shaft to a
point of intersection with said helically extending
edge and away from the direction of advance of said
flighting into the soil, said helical flighting having a
diameter and distance between adjacent flights which are
approximately equal to each other, and said helical
flighting extending more than one revolution about said
shaft and along said shaft for a distance greater than
the depth of the hole to readily lift the soil from the
hole as the flighting is advanced into the hole.
29. An auger planter for the forming of small diameter
holes in the soil of a depth suitable for the planting
of flower bulbs and the like, comprising an auger having
a central shaft and helical flighting for advancing into
the soil, said central shaft terminating at one end in a
tapered leading end, the other end of said central shaft
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terminating in a trailing end adapted to be mounted in a
hand held power drill, said flighting terminating in a
leading edge proximate to said shaft leading end, said
leading edge having a chord portion extending chordally
substantially across said flighting, said chord portion
being angularly disposed to said central shaft such that
the line of sight along said chord portion does not
intersect the center of said central shaft and away from
the direction of advance of said flighting into the
soil, said helical flighting having a diameter and
distance between adjacent flights which are
approximately equal to each other, said helical
flighting extending more than one revolution about said
shaft and along said shaft for a distance greater than
the depth of the hole to readily lift soil from the hole
as the flighting is advanced into the hole, said leading
edge chord portion and said trailing edge chord portion
are substantially planar to each other in a plane
extending substantially parallel to the axis of said
central shaft, and wherein said leading edge further
includes a radial portion extending outwardly from said
central shaft to a point of intersection with the
radially inner portion of said leading edge chord
portion, said trailing edge also including a radial
portion extending outwardly from said central shaft to a
point of intersection with said trailing edge chord
portion,said leading edge radial portion and leading
edge chord portion intersecting each other at an obtuse
angle, and said trailing edge radial portion and said
trailing edge chord portion intersect at an obtuse
angle.
30. An auger planter for the forming of small diameter
holes in the soil of a depth suitable for the planting
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of flower bulbs and the like, comprising the auger
having a central shaft and helical flighting for
advancing into a soil, said central shaft terminating at
one end in a tapered leading end, the other end of said
central shaft terminating in a trailing end adapted to
be mounted in a hand held power drill, said flighting
terminating in a leading edge proximate to said shaft
leading end, said leading edge having a chord portion
extending chordally substantially across said flighting,
said chord portion being angularly disposed to said
central shaft such that the line of sight along said
chord portion does not intersect the center of said
central shaft and away from the direction of advance of
said flighting into the soil, said helical flighting
having a diameter and distance between adjacent flights
which are approximately equal to each other, said
helical flighting extending more than one revolution
about said shaft and along said shaft for a distance
greater than the depth of the hole to readily lift soil
from the hole as the flighting is advanced into the
hole, the end of said helical flighting opposite said
leading edge terminating in a trailing edge, said
trailing edge having a chord portion extending cordally
substantially across said flighting on one side of said
shaft, said trailing edge chord portion being angularly
disposed to said central shaft such that the line of
sight along said chord portion does not intersect the
center of said central shaft, and wherein said leading
edge and trailing edge chord portions extend
respectively away from and toward the direction of
advance of the flighting into the soil.