US20150345090A1 - Granular spreader assembly - Google Patents
Granular spreader assembly Download PDFInfo
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- US20150345090A1 US20150345090A1 US14/822,255 US201514822255A US2015345090A1 US 20150345090 A1 US20150345090 A1 US 20150345090A1 US 201514822255 A US201514822255 A US 201514822255A US 2015345090 A1 US2015345090 A1 US 2015345090A1
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- 239000000463 material Substances 0.000 claims abstract description 55
- 239000008187 granular material Substances 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims description 11
- 230000001154 acute effect Effects 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 description 5
- 239000004576 sand Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 230000002363 herbicidal effect Effects 0.000 description 1
- 239000004009 herbicide Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H10/00—Improving gripping of ice-bound or other slippery traffic surfaces, e.g. using gritting or thawing materials ; Roadside storage of gritting or solid thawing materials; Permanently installed devices for applying gritting or thawing materials; Mobile apparatus specially adapted for treating wintry roads by applying liquid, semi-liquid or granular materials
- E01H10/007—Mobile apparatus specially adapted for preparing or applying liquid or semi-liquid thawing material or spreading granular material on wintry roads
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
- E01C19/201—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels
- E01C19/202—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels solely rotating, e.g. discharging and spreading drums
- E01C19/203—Centrifugal spreaders with substantially vertical axis
Definitions
- This invention pertains to the art of methods and devices used to spread granular material on ground surfaces, and more specifically to a granular spreader assembly using an auger that prevents granular material flow when the auger is not rotating.
- Granular spreader assemblies that spread granular material on ground surfaces are well known.
- One example is provided in U.S. Pat. No. 6,715,703 titled Spreader (“the '703 patent”) which is incorporated herein by reference.
- the '703 patent discloses a granular spreader assembly that has a storage container (hopper) that holds granular material, such as salt. The storage container is supported to a vehicle.
- FIG. 12 shows the storage container 1 having an opening 2 through which the granular material flows when exiting the storage container 1 .
- a tube 3 has an inner surface defining an opening 4 that communicates with the opening 2 in the storage container 1 .
- An auger 5 is positioned within the tube 3 and has a spiral blade 6 .
- Motor 7 is used to rotate the auger 5 and a spreader plate 8 .
- the auger 5 moves or flows the granular material from the storage container 1 , along the spiral blade 6 , through the opening 4 in the tube 3 , and onto the spreader plate 8 . If the spreader plate 8 is rotated, the granular material contacts the spreader plate 8 and is then spread onto the ground surface.
- the granular spreader assembly shown in FIG. 12 and others like it, generally work well for their intended purposes. They have a problem, however, that commonly occurs when the vehicle transporting the granular spreader assembly comes to a stop, such as at a stop sign or traffic light. When the vehicle stops, the continued spreading of the granular material at that location must also stop or that location will be over covered with granular material. Such over covering is a waste of granular material and may be detrimental to the ground surface at that location.
- the granular material continues to flow because there is a gap between the radial outer edge of the spiral blade 6 and the tube surface defining the tube opening 4 that permits the granular material to flow therethrough. This gap is visible in FIG. 12 .
- the granular material also continues to flow because the surface of the spiral blade 6 is smooth (typically made of a smooth metal) permitting the granular material to flow on the smooth surface of the spiral blade 6 through the opening 4 in the tube 3 .
- One potential solution is to reduce the gap (or clearance) between the radial outer edge of the spiral blade and the tube surface defining the tube opening. While this “solution” may have merit in a workshop setting where working conditions are ideal (a warm environment, clean working conditions, etc.) it has little or no merit in actual use where the working conditions are not ideal (very cold in winter, dirty, etc.). In actual “real world” use such a small clearance could not be maintained and soon the spiral blade would contact the tube which would wear if not damage the auger and/or the tube. Such contact would also require additional power to rotate the auger against the resultant excessive friction.
- a granular spreader assembly may comprise: a storage container that: (1) is supportable to an associated vehicle positioned on an associated ground surface; (2) is suitable to contain associated granular material; and, (3) comprises an opening through which the associated granular material flows when exiting the storage container; a tube having an inner surface defining an opening that communicates with the opening in the storage container; and, an auger that: (1) comprises a shaft having an axial centerline; (2) comprises a spiral blade that: (a) extends radially outwardly from the shaft; (b) has a radial outer edge; (c) wraps around the shaft at least 360 degrees in a spiral manner; and, (d) comprises resiliently-deformable material that extends at least 360 degrees along the radial outer edge; and, (3) is positioned within the opening in the tube such that the resiliently-deformable material physically contacts the inner surface of the tube defining the opening in the tube.
- the auger can be adjusted between: (1) a first condition where the shaft is rotated about its axial centerline to flow the associated granular material from the storage container, along the spiral blade, through the opening in the tube, and onto the associated ground surface; and, (2) a second condition where the shaft is not rotated about its axial centerline and the spiral blade prevents the associated granular material from flowing between the radial outer edge of the spiral blade and the inner surface of the tube.
- a method of using a granular spreader assembly may comprise the steps of: (A) providing a granular spreader assembly comprising: a storage container that: (1) is supportable to an associated vehicle positioned on an associated ground surface; (2) is suitable to contain associated granular material; and, (3) comprises an opening through which the associated granular material flows when exiting the storage container; a tube having an inner surface defining an opening that communicates with the opening in the storage container; and, an auger that: (1) comprises a shaft having an axial centerline; and, (2) comprises a spiral blade that: (a) extends radially outwardly from the shaft; (b) has a radial outer edge; and, (c) wraps around the shaft at least 360 degrees along the radial outer edge; (B) providing a resiliently-deformable material that extends at least 360 degrees along the radial outer edge; (C) positioning the auger within the opening in the tube such that the resiliently-deformable material physically contacts the inner surface of
- FIG. 1 is a back perspective view of a pickup truck which uses an auger according to embodiments of this invention.
- FIG. 2 is a side view of a dump truck which uses an auger according to embodiments of this invention.
- FIG. 3 is a front perspective view of a manually movable walk behind unit which uses an auger according to embodiments of this invention.
- FIG. 4 is a a back perspective view of the granular spreader assembly of FIG. 1 .
- FIG. 5 is a partial sectional view of a portion of a granular spreader assembly showing an auger within a tube according to some embodiments of this invention.
- FIG. 6 is a side view of an auger according to some embodiments of this invention.
- FIG. 7 is a close-up view of an auger according to some embodiments of this invention showing the overlap portions of spiral blade sections.
- FIG. 8 is a top perspective view of an auger according to some embodiments of this invention.
- FIG. 9 is a top view illustrating the interference amount when the outside diameter of the auger is greater than the inside diameter of the opening in the tube.
- FIG. 10 is a side close-up view showing the deformation of the resiliently-deformable material at the radial outer edge of the auger blade against the inner surface of the tube.
- FIG. 11 is a side view of an auger according to some embodiments of this invention.
- FIG. 12 is a partial sectional view of a portion of a granular spreader assembly showing an auger within a tube according to the prior art.
- FIG. 1 shows a vehicle 12 having wheels 16 positioned on ground surface 18 .
- Attached to the vehicle 12 is a granular spreader assembly 30 using an auger 50 according to some embodiments of this invention.
- the granular spreader assembly 30 spreads or applies granular material, such as salt or sand, onto the ground surface 18 in a known manner. While the vehicle shown is a pick-up truck it should be understood that the granular spreader assembly 30 and/or auger 50 of this invention can be used with any type of vehicle chosen with the sound judgment of a person of skill in the art.
- FIG. 2 shows a granular spreader assembly 30 a using an auger according to this invention supported to a dump truck 12 a having wheels 16 a positioned on ground surface 18 a.
- the granular spreader assembly 30 a spreads or applies granular material, such as salt or sand, onto the ground surface 18 a in a known manner and also has a snow plow system 14 used to plow snow on the ground surface 18 a.
- FIG. 3 shows another application where a granular spreader assembly 30 b using an auger according to this invention is supported to a manually movable “walk behind” unit 12 b having wheels 16 b positioned on ground surface 18 b.
- the granular spreader assembly 30 b spreads or applies granular material onto the ground surface 18 b in a known manner.
- the granular material being spread with the granular spreader assembly and/or auger can be any chosen with the sound judgment of a person of skill in the art. Non-limiting examples include salt, sand, seeds, fertilizer, pesticide, herbicide, fungicide, nuts, coal, rice, and beans.
- the granular spreader assembly and/or auger of this invention may have non-vehicle applications as well.
- FIG. 4 shows the granular spreader assembly 30 of FIG. 1 detached from any vehicle.
- the granular spreader assembly 30 may include a storage container 32 , sometimes referred to as a hopper, which holds the granular material that is to be spread or dispersed onto a ground surface.
- the granular spreader assembly 30 may also include support structure 34 that supports or attaches the storage container 32 to a vehicle.
- the particular support structure used can be any chosen with the sound judgment of a person of skill in the art that is appropriate for the particular vehicle to which the granular spreader assembly 30 will be supported.
- the storage container 32 may have an opening 36 through which the granular material flows when exiting the storage container 32 .
- a tube 38 having an inner surface 40 defines an opening 42 that communicates with the opening 36 in the storage container 32 .
- the tube 38 may be positioned just below the storage container 32 , as shown.
- a spreader plate 44 that may be rotated by motor 46 may be positioned and used, as is well known by those of skill in the art, to spread or disperse the granular material as it exits the opening 36 of the tube 38 onto the ground surface.
- the motor 46 also rotates the auger 50 .
- a different power source such as a different motor, is used to rotate the auger 50 .
- the auger 50 may include a shaft 52 , having an axial centerline 54 , and a spiral blade 56 .
- auger it is meant any shaft having a blade on its outer surface that conveys (or moves or flows) material in contact with the blade when the shaft is rotated.
- the shaft 52 can be of any type, shape and material chosen with the sound judgment of a person of skill in the art.
- the spiral blade 56 may extend radially outwardly from the shaft 52 and may wrap around the shaft 52 at least 360 degrees in a spiral manner. In one embodiment, shown, the spiral blade 56 has first and second sections, 58 , 60 that each wrap around the shaft 52 at least 360 degrees in a spiral manner.
- the first section 58 is positioned axially above the second section 60 in the embodiment shown in FIG. 7 .
- the first and second sections, 58 , 60 are non-continuous.
- non-continuous it is meant that there is a break (or space or gap) between the nearest ends of the first and second sections 58 , 60 making the spiral wrap that they form incomplete.
- the first section 58 may have first and second ends 62 , 64 and the second section 60 may have first and second ends 66 , 68 , as shown.
- the nearest ends of the first and second sections 58 , 60 are the second end 64 of the first section 58 and the first end 66 of the second section 60 .
- spiral blade 56 there is a space between the juxtaposed ends 64 , 66 making the first and second sections 58 , 60 non-continuous. While the spiral blade 56 shown has two sections 58 , 60 , in other embodiments the spiral blade 56 may have three, four or more non-continuous sections, as chosen by a person of skill in the art.
- At least one of the first and second sections 58 , 60 wrap around the shaft 52 more than 360 degrees.
- both of the first and second sections 58 , 60 wrap around the shaft 52 more than 360 degrees.
- an axial overlap portion is formed.
- an “axial overlap portion” it is meant the portion of the spiral blade 56 , or any section 58 , 60 thereof, which wraps more 360 degrees around the shaft 52 .
- the first section 58 has an axial overlap portion 70 and the second portion has an axial overlap portion 72 .
- the amount of overlap when used, can be any chosen with the sound judgment of a person of skill in the art.
- the axial overlap portions 70 , 72 have different arc lengths.
- the axial overlap portions 70 , 72 have substantially the same arc lengths.
- the axial overlap portions 70 , 72 have an arc length of between 1 and 90 degrees (meaning the spiral blade or blade section wraps around the shaft between 366 and 450 degrees).
- the axial overlap portions 70 , 72 have an arc length of between 5 and 85 degrees (meaning the spiral blade or blade section wraps around the shaft between 370 and 445 degrees).
- the axial overlap portions 70 , 72 have an arc length of between 10 and 80 degrees (meaning the spiral blade or blade section wraps around the shaft between 370 and 440 degrees). In a more specific embodiment, the axial overlap portions 70 , 72 have an arc length of between 20 and 70 degrees (meaning the spiral blade or blade section wraps around the shaft between 380 and 430 degrees). In a yet more specific embodiment, the axial overlap portions 70 , 72 have an arc length of between 30 and 60 degrees (meaning the spiral blade or blade section wraps around the shaft between 390 and 420 degrees).
- the axial overlap portions 70 , 72 have an arc length of between 40 and 50 degrees (meaning the spiral blade or blade section wraps around the shaft between 400 and 410 degrees). In one embodiment, the axial overlap portions 70 , 72 are not axially aligned. In another embodiment, shown, the axial overlap portions 70 , 72 , are substantially axially aligned. The size and alignment of the axial overlap portions 70 , 72 may be determined by the designer to meet the specific application based on factors such as the type of granular material to be spread, the material that the spiral blade 56 is made of, and the spiral angle 96 (seen best in FIG. 10 ). If the axial overlap portions 70 , 72 have arc lengths that are more than necessary, the excess spiral blade is a waste of material.
- the spiral blade 56 of the auger 50 may comprise a resiliently-deformable material at the radial outer edge 74 , as shown.
- resiliently-deformable it is meant that the material is easily deformed (only a relatively small force is required to deform it) but that when the force is removed, it substantially returns to its original shape.
- the spiral blade 56 may have a radial width 76 , as shown. In one embodiment, the entire radial width 76 is formed of resiliently-deformable material.
- the spiral blade 56 comprises a radially inward portion 78 , which may be formed of any material chosen with the sound judgment of a person of skill in the art, and a radially outward portion 80 formed of the resiliently-deformable material.
- the radially inward portion 78 may have a radial width 82 and the radially outward portion 80 may have a radial width 80 .
- the particular dimensions of the radial widths 82 , 84 may be determined by the designer to meet the specific application based on factors such as the type of granular material to be spread, the materials of which the radially inward and outward portions 78 , 80 , are formed, and the spiral angle 96 (labeled in FIG. 10 ).
- the radial widths 82 , 84 are substantially the same (thus each is about 50% of the radial width 76 ). In another embodiment, the radial width 82 is about 90% of radial width 76 and the radial width 84 is about 10% of radial width 76 . In another embodiment, the radial width 82 is about 80% of radial width 76 and the radial width 84 is about 20% of radial width 76 . In another embodiment, the radial width 82 is about 70% of radial width 76 and the radial width 84 is about 30% of radial width 76 .
- the radial width 82 is about 60% of radial width 76 and the radial width 84 is about 40% of radial width 76 . In another embodiment, the radial width 82 is about 40% of radial width 76 and the radial width 84 is about 60% of radial width 76 . In another embodiment, the radial width 82 is about 60% of radial width 76 and the radial width 84 is about 40% of radial width 76 . In another embodiment, the radial width 82 is about 30% of radial width 76 and the radial width 84 is about 70% of radial width 76 .
- the radial width 82 is about 20% of radial width 76 and the radial width 84 is about 80% of radial width 76 . In another embodiment, the radial width 82 is about 10% of radial width 76 and the radial width 84 is about 90% of radial width 76 .
- the specific resiliently-deformable material used with the auger 50 can be any chosen with the sound judgment of a person of skill in the art.
- the resiliently-deformable material is rubber.
- the resiliently-deformable material is a polymer.
- the resiliently-deformable material is a collection of bristles, similar to that used in a brush.
- the radially inward portion 78 is formed of a metal having its radially inward edge welded to the outer surface of the shaft 52 and its radially outward edge defines a pair of arms between which the bristles are inserted.
- the arms can then be compressed toward each other to secure the bristles to the shaft 52 .
- the resiliently-deformable material is a collection of bristles
- the bristles can be arranged in any manner chosen with the sound judgment of a person of skill in the art.
- the auger 50 may be positioned within the opening 42 in the tube 38 similar to the way in which the auger 5 is positioned within the tube 3 shown in FIG. 12 , except that with this invention the resiliently-deformable material of the spiral blade 56 physically contacts the inner surface 40 of the tube 38 that defines the opening 42 .
- the outside diameter 86 of the auger 50 is equal to, or greater than, the inside diameter of the opening 42 . In this way the gap or clearance between the radial outer edge of the spiral blade and the tube surface defining the tube opening is removed but without concern for damage to components. There is no gap or clearance for the granular material to flow through, as is known in the prior art.
- the resiliently-deformable material that contacts the tube 38 has a long wear life. If necessary, the resiliently-deformable material can be replaced. Alternatively, an auger having resiliently-deformable material can be replaced with a newer/unworn auger.
- the resiliently-deformable material may also form a rough (non-smooth) upper surface for the blade, thus minimizing or eliminating the flow of granular material along the surface of the blade.
- the interference amount 90 is at least 1/16 of an inch. In another embodiment, the interference amount 90 is at least 1 ⁇ 8 of an inch. In yet another embodiment, the interference amount 90 is at least 1 ⁇ 4 of an inch.
- the interference amount 90 may be made up entirely of the resiliently-deformable material.
- the auger 50 and the opening 42 as being circles with the resultant interference amount 90 being the same along 360 degrees of the auger/blade.
- the spiral blade 56 and/or its sections 58 , 60 may have overlap portions, as discussed above, the wrap around the shaft may be more than 360 degrees and thus the interference amount 90 may occur for more than 360 degrees of the auger/blade. It is also contemplated to form the spiral blade 56 to not have a consistent radial width 76 . In this case, the resultant interference amount 90 may occur over less than 360 degrees of the auger/blade. In one specific embodiment, the interference amount 90 is over 180 degrees of the auger/blade.
- the interference amount 90 is deformed (or bent or crushed) against the inner surface 40 of the tube 38 that defines the opening 42 .
- This deformation 92 is shown in FIG. 10 .
- the type and amount of deformation 92 will depend on the resiliently-deformable material used and on the interference amount 90 .
- the radially outward portion of the blade may have an axial thickness 94 of any amount chosen with the sound judgment of a person of skill in the art.
- the axial thickness 94 is at least 1/16 of an inch.
- the axial thickness 94 is at least 1 ⁇ 8 of an inch.
- the axial thickness 94 is at least 1 ⁇ 4 of an inch.
- the spiral blade 56 may form a spiral angle 96 with respect to the axial centerline 54 of the shaft 52 .
- the spiral angle 96 can be any chosen with the sound judgment of a person of skill in the art.
- the spiral angle 96 is consistent over the length of the blade 56 .
- the spiral angle 96 varies over the length of the blade 56 .
- the auger 50 may be attached to the granular spreader 30 in any manner chosen with the sound judgment of a person of skill in the art.
- a flange 98 is attached to the shaft 52 and has openings 100 that receive fasteners that fasten the auger 50 to the spreader plate 44 .
- the top of the shaft 52 may have an agitator 102 that extends into the storage container 32 to loosen the granular material so that the granular material flows toward the opening 36 .
- the top of the shaft 52 may have threads 104 to which the agitator 102 is attached.
- the top of the shaft 52 has another blade 106 which may have resiliently-deformable material, as shown, similar to the blade 56 .
- the blade 106 causes the granular material to flow from within the storage container 32 down to the opening 36 .
- the auger 50 and the tube 38 may be oriented in any manner chosen with the sound judgment of a person of skill in the art.
- augers used in the sand and salt spreading industry are oriented or positioned with the axial centerline 54 of the shaft 52 at an angle 108 that is perpendicular, 90 degrees, with respect to the ground surface.
- the auger 50 of this invention will work well when the angle 108 is 90 degrees. In another embodiment, it will also work well when the angle 108 is an acute angle of at least 30 degrees. In yet another embodiment, the auger 50 of this invention will work well when the angle 108 is an acute angle of at least 45 degrees.
- the auger 50 can be adjusted between: (1) a first condition where the shaft 52 is rotated, for example by motor 42 , about its axial centerline 54 to flow the associated granular material from the storage container 32 , along the spiral blade 56 , through the opening 42 in the tube 38 , and onto the ground surface 18 ; and, (2) a second condition where the shaft 52 is not rotated about its axial centerline 54 and the spiral blade 56 prevents the granular material from flowing through the opening 42 in the tube 38 (primarily because the resiliently-deformable material at the radial outer edge 74 of the spiral blade 56 is positioned within the opening 42 in the tube 38 such that the resiliently-deformable material physically contacts the inner surface 40 of the tube 38 ).
- an auger kit comprises an auger like auger 50 described above.
- the auger kit may be used when it is desired to replace and existing auger.
- the existing auger is not made according to the various embodiments of auger 50 . It may, for example, be similar to the auger 5 described in the Description of the Related Art above.
- the existing auger is made according to any of the various embodiments of auger 50 .
- the existing auger is removed and replaced with an auger 50 . The replacement auger 50 can then be used as described above.
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Abstract
An auger may have a spiral blade that extends radially outwardly from a shaft and that has resiliently-deformable material at the radial outer edge that physically contacts the inner surface of the tube in which the auger is positioned. When the auger is not rotated, the physical contact of the resiliently-deformable material on the inner surface of the tube may prevent granular material from flowing through the opening in the tube.
Description
- This patent application is a continuation application of U.S. patent application Ser. No. 13/826,861 filed on Mar. 14, 2013, entitled GRANULAR SPREADER ASSEMBLY, which is incorporated herein by reference in its entirety.
- A. Field of Invention
- This invention pertains to the art of methods and devices used to spread granular material on ground surfaces, and more specifically to a granular spreader assembly using an auger that prevents granular material flow when the auger is not rotating.
- B. Description of the Related Art
- Granular spreader assemblies that spread granular material on ground surfaces are well known. One example is provided in U.S. Pat. No. 6,715,703 titled Spreader (“the '703 patent”) which is incorporated herein by reference. The '703 patent discloses a granular spreader assembly that has a storage container (hopper) that holds granular material, such as salt. The storage container is supported to a vehicle. A portion of FIG. 7 from the '703 patent is shown in
FIG. 12 which shows thestorage container 1 having anopening 2 through which the granular material flows when exiting thestorage container 1. Atube 3 has an inner surface defining anopening 4 that communicates with theopening 2 in thestorage container 1. Anauger 5 is positioned within thetube 3 and has aspiral blade 6. Motor 7 is used to rotate theauger 5 and aspreader plate 8. When rotated, theauger 5 moves or flows the granular material from thestorage container 1, along thespiral blade 6, through theopening 4 in thetube 3, and onto thespreader plate 8. If thespreader plate 8 is rotated, the granular material contacts thespreader plate 8 and is then spread onto the ground surface. - The granular spreader assembly shown in
FIG. 12 , and others like it, generally work well for their intended purposes. They have a problem, however, that commonly occurs when the vehicle transporting the granular spreader assembly comes to a stop, such as at a stop sign or traffic light. When the vehicle stops, the continued spreading of the granular material at that location must also stop or that location will be over covered with granular material. Such over covering is a waste of granular material and may be detrimental to the ground surface at that location. - To address this problem it is known to stop the rotation of the auger and the spreader plate when the vehicle comes to a stop. While this action stops the wide disbursement of the granular material, it does not stop the flow of the granular material onto the ground surface. With reference again to
FIG. 12 , the granular material continues to flow because there is a gap between the radial outer edge of thespiral blade 6 and the tube surface defining thetube opening 4 that permits the granular material to flow therethrough. This gap is visible inFIG. 12 . The granular material also continues to flow because the surface of thespiral blade 6 is smooth (typically made of a smooth metal) permitting the granular material to flow on the smooth surface of thespiral blade 6 through theopening 4 in thetube 3. - One potential solution is to reduce the gap (or clearance) between the radial outer edge of the spiral blade and the tube surface defining the tube opening. While this “solution” may have merit in a workshop setting where working conditions are ideal (a warm environment, clean working conditions, etc.) it has little or no merit in actual use where the working conditions are not ideal (very cold in winter, dirty, etc.). In actual “real world” use such a small clearance could not be maintained and soon the spiral blade would contact the tube which would wear if not damage the auger and/or the tube. Such contact would also require additional power to rotate the auger against the resultant excessive friction.
- What is needed, then, is a granular spreader assembly that stops the flow of granular material when the rotation of the auger is stopped and that is useful in “real world” working conditions.
- According to some embodiments of this invention, a granular spreader assembly may comprise: a storage container that: (1) is supportable to an associated vehicle positioned on an associated ground surface; (2) is suitable to contain associated granular material; and, (3) comprises an opening through which the associated granular material flows when exiting the storage container; a tube having an inner surface defining an opening that communicates with the opening in the storage container; and, an auger that: (1) comprises a shaft having an axial centerline; (2) comprises a spiral blade that: (a) extends radially outwardly from the shaft; (b) has a radial outer edge; (c) wraps around the shaft at least 360 degrees in a spiral manner; and, (d) comprises resiliently-deformable material that extends at least 360 degrees along the radial outer edge; and, (3) is positioned within the opening in the tube such that the resiliently-deformable material physically contacts the inner surface of the tube defining the opening in the tube. The auger can be adjusted between: (1) a first condition where the shaft is rotated about its axial centerline to flow the associated granular material from the storage container, along the spiral blade, through the opening in the tube, and onto the associated ground surface; and, (2) a second condition where the shaft is not rotated about its axial centerline and the spiral blade prevents the associated granular material from flowing between the radial outer edge of the spiral blade and the inner surface of the tube.
- According to other embodiments of this invention, a method of using a granular spreader assembly may comprise the steps of: (A) providing a granular spreader assembly comprising: a storage container that: (1) is supportable to an associated vehicle positioned on an associated ground surface; (2) is suitable to contain associated granular material; and, (3) comprises an opening through which the associated granular material flows when exiting the storage container; a tube having an inner surface defining an opening that communicates with the opening in the storage container; and, an auger that: (1) comprises a shaft having an axial centerline; and, (2) comprises a spiral blade that: (a) extends radially outwardly from the shaft; (b) has a radial outer edge; and, (c) wraps around the shaft at least 360 degrees along the radial outer edge; (B) providing a resiliently-deformable material that extends at least 360 degrees along the radial outer edge; (C) positioning the auger within the opening in the tube such that the resiliently-deformable material physically contacts the inner surface of the tube defining the opening in the tube; and, (D) adjusting the auger between: (1) a first condition where the shaft is rotated about its axial centerline to flow the associated granular material from the storage container, along the spiral blade, through the opening in the tube, and onto the associated ground surface; and, (2) a second condition where the shaft is not rotated about its axial centerline and the spiral blade prevents the associated granular material from flowing between the radial outer edge of the spiral blade and the inner surface of the tube.
- Numerous benefits and advantages of the invention will become apparent to those skilled in the art to which it pertains upon a reading and understanding of the following detailed specification.
- The invention may take physical form in certain parts and arrangement of parts, embodiments of which will be described in detail in this specification and illustrated in the accompanying drawings which form a part hereof and wherein:
-
FIG. 1 is a back perspective view of a pickup truck which uses an auger according to embodiments of this invention. -
FIG. 2 is a side view of a dump truck which uses an auger according to embodiments of this invention. -
FIG. 3 is a front perspective view of a manually movable walk behind unit which uses an auger according to embodiments of this invention. -
FIG. 4 is a a back perspective view of the granular spreader assembly ofFIG. 1 . -
FIG. 5 is a partial sectional view of a portion of a granular spreader assembly showing an auger within a tube according to some embodiments of this invention. -
FIG. 6 is a side view of an auger according to some embodiments of this invention. -
FIG. 7 is a close-up view of an auger according to some embodiments of this invention showing the overlap portions of spiral blade sections. -
FIG. 8 is a top perspective view of an auger according to some embodiments of this invention. -
FIG. 9 is a top view illustrating the interference amount when the outside diameter of the auger is greater than the inside diameter of the opening in the tube. -
FIG. 10 is a side close-up view showing the deformation of the resiliently-deformable material at the radial outer edge of the auger blade against the inner surface of the tube. -
FIG. 11 is a side view of an auger according to some embodiments of this invention. -
FIG. 12 is a partial sectional view of a portion of a granular spreader assembly showing an auger within a tube according to the prior art. - Referring now to the drawings wherein the showings are for purposes of illustrating embodiments of the invention only and not for purposes of limiting the same, and wherein like reference numerals are understood to refer to like components,
FIG. 1 shows avehicle 12 havingwheels 16 positioned onground surface 18. Attached to thevehicle 12 is agranular spreader assembly 30 using anauger 50 according to some embodiments of this invention. Thegranular spreader assembly 30 spreads or applies granular material, such as salt or sand, onto theground surface 18 in a known manner. While the vehicle shown is a pick-up truck it should be understood that thegranular spreader assembly 30 and/orauger 50 of this invention can be used with any type of vehicle chosen with the sound judgment of a person of skill in the art.FIG. 2 , for example, shows agranular spreader assembly 30 a using an auger according to this invention supported to adump truck 12 a havingwheels 16 a positioned onground surface 18 a. Thegranular spreader assembly 30 a spreads or applies granular material, such as salt or sand, onto theground surface 18 a in a known manner and also has asnow plow system 14 used to plow snow on theground surface 18 a.FIG. 3 shows another application where agranular spreader assembly 30 b using an auger according to this invention is supported to a manually movable “walk behind” unit 12b having wheels 16 b positioned onground surface 18 b. Thegranular spreader assembly 30 b spreads or applies granular material onto theground surface 18 b in a known manner. It should be noted that the granular material being spread with the granular spreader assembly and/or auger can be any chosen with the sound judgment of a person of skill in the art. Non-limiting examples include salt, sand, seeds, fertilizer, pesticide, herbicide, fungicide, nuts, coal, rice, and beans. The granular spreader assembly and/or auger of this invention may have non-vehicle applications as well. -
FIG. 4 shows thegranular spreader assembly 30 ofFIG. 1 detached from any vehicle. Thegranular spreader assembly 30 may include astorage container 32, sometimes referred to as a hopper, which holds the granular material that is to be spread or dispersed onto a ground surface. Thegranular spreader assembly 30 may also includesupport structure 34 that supports or attaches thestorage container 32 to a vehicle. The particular support structure used can be any chosen with the sound judgment of a person of skill in the art that is appropriate for the particular vehicle to which thegranular spreader assembly 30 will be supported. - With reference now to
FIGS. 4 and 5 , thestorage container 32 may have anopening 36 through which the granular material flows when exiting thestorage container 32. Atube 38 having aninner surface 40 defines anopening 42 that communicates with theopening 36 in thestorage container 32. Thetube 38 may be positioned just below thestorage container 32, as shown. Below thetube 38, aspreader plate 44 that may be rotated by motor 46 may be positioned and used, as is well known by those of skill in the art, to spread or disperse the granular material as it exits theopening 36 of thetube 38 onto the ground surface. In one embodiment, the motor 46 also rotates theauger 50. In another embodiment, a different power source, such as a different motor, is used to rotate theauger 50. - With reference now to
FIGS. 5-7 , theauger 50 may include ashaft 52, having anaxial centerline 54, and aspiral blade 56. By “auger” it is meant any shaft having a blade on its outer surface that conveys (or moves or flows) material in contact with the blade when the shaft is rotated. Theshaft 52 can be of any type, shape and material chosen with the sound judgment of a person of skill in the art. Thespiral blade 56 may extend radially outwardly from theshaft 52 and may wrap around theshaft 52 at least 360 degrees in a spiral manner. In one embodiment, shown, thespiral blade 56 has first and second sections, 58, 60 that each wrap around theshaft 52 at least 360 degrees in a spiral manner. Thefirst section 58 is positioned axially above thesecond section 60 in the embodiment shown inFIG. 7 . In another embodiment, also shown, the first and second sections, 58, 60 are non-continuous. By “non-continuous” it is meant that there is a break (or space or gap) between the nearest ends of the first andsecond sections first section 58 may have first and second ends 62, 64 and thesecond section 60 may have first and second ends 66, 68, as shown. The nearest ends of the first andsecond sections second end 64 of thefirst section 58 and thefirst end 66 of thesecond section 60. There is a space between the juxtaposed ends 64, 66 making the first andsecond sections spiral blade 56 shown has twosections spiral blade 56 may have three, four or more non-continuous sections, as chosen by a person of skill in the art. - With reference now to
FIGS. 6-7 , in one embodiment, at least one of the first andsecond sections shaft 52 more than 360 degrees. For the embodiment shown, both of the first andsecond sections shaft 52 more than 360 degrees. When thespiral blade 56, or anysection shaft 52 more than 360 degrees, an axial overlap portion is formed. By an “axial overlap portion” it is meant the portion of thespiral blade 56, or anysection shaft 52. For the embodiment shown inFIGS. 6-7 , thefirst section 58 has anaxial overlap portion 70 and the second portion has anaxial overlap portion 72. The amount of overlap, when used, can be any chosen with the sound judgment of a person of skill in the art. In one embodiment, theaxial overlap portions axial overlap portions axial overlap portions axial overlap portions axial overlap portions axial overlap portions axial overlap portions axial overlap portions axial overlap portions axial overlap portions axial overlap portions spiral blade 56 is made of, and the spiral angle 96 (seen best inFIG. 10 ). If theaxial overlap portions - With reference now to
FIGS. 6-8 , thespiral blade 56 of theauger 50 may comprise a resiliently-deformable material at the radialouter edge 74, as shown. By “resiliently-deformable” it is meant that the material is easily deformed (only a relatively small force is required to deform it) but that when the force is removed, it substantially returns to its original shape. Thespiral blade 56 may have aradial width 76, as shown. In one embodiment, theentire radial width 76 is formed of resiliently-deformable material. In another embodiment, shown, thespiral blade 56 comprises a radiallyinward portion 78, which may be formed of any material chosen with the sound judgment of a person of skill in the art, and a radiallyoutward portion 80 formed of the resiliently-deformable material. The radiallyinward portion 78 may have aradial width 82 and the radiallyoutward portion 80 may have aradial width 80. The particular dimensions of theradial widths outward portions FIG. 10 ). In one embodiment, theradial widths radial width 82 is about 90% ofradial width 76 and theradial width 84 is about 10% ofradial width 76. In another embodiment, theradial width 82 is about 80% ofradial width 76 and theradial width 84 is about 20% ofradial width 76. In another embodiment, theradial width 82 is about 70% ofradial width 76 and theradial width 84 is about 30% ofradial width 76. In another embodiment, theradial width 82 is about 60% ofradial width 76 and theradial width 84 is about 40% ofradial width 76. In another embodiment, theradial width 82 is about 40% ofradial width 76 and theradial width 84 is about 60% ofradial width 76. In another embodiment, theradial width 82 is about 60% ofradial width 76 and theradial width 84 is about 40% ofradial width 76. In another embodiment, theradial width 82 is about 30% ofradial width 76 and theradial width 84 is about 70% ofradial width 76. In another embodiment, shown, theradial width 82 is about 20% ofradial width 76 and theradial width 84 is about 80% ofradial width 76. In another embodiment, theradial width 82 is about 10% ofradial width 76 and theradial width 84 is about 90% ofradial width 76. - With continuing reference to
FIGS. 6-8 , the specific resiliently-deformable material used with theauger 50 can be any chosen with the sound judgment of a person of skill in the art. In one embodiment, the resiliently-deformable material is rubber. In another embodiment, the resiliently-deformable material is a polymer. In yet another embodiment, shown, the resiliently-deformable material is a collection of bristles, similar to that used in a brush. In one specific embodiment, shown, the radiallyinward portion 78 is formed of a metal having its radially inward edge welded to the outer surface of theshaft 52 and its radially outward edge defines a pair of arms between which the bristles are inserted. The arms can then be compressed toward each other to secure the bristles to theshaft 52. When the resiliently-deformable material is a collection of bristles, the bristles can be arranged in any manner chosen with the sound judgment of a person of skill in the art. - With reference now to
FIGS. 5 and 10 , theauger 50 may be positioned within theopening 42 in thetube 38 similar to the way in which theauger 5 is positioned within thetube 3 shown inFIG. 12 , except that with this invention the resiliently-deformable material of thespiral blade 56 physically contacts theinner surface 40 of thetube 38 that defines theopening 42. In other words, theoutside diameter 86 of theauger 50 is equal to, or greater than, the inside diameter of theopening 42. In this way the gap or clearance between the radial outer edge of the spiral blade and the tube surface defining the tube opening is removed but without concern for damage to components. There is no gap or clearance for the granular material to flow through, as is known in the prior art. The resiliently-deformable material that contacts thetube 38 has a long wear life. If necessary, the resiliently-deformable material can be replaced. Alternatively, an auger having resiliently-deformable material can be replaced with a newer/unworn auger. The resiliently-deformable material may also form a rough (non-smooth) upper surface for the blade, thus minimizing or eliminating the flow of granular material along the surface of the blade. - With reference now to
FIGS. 8-10 , when theoutside diameter 86 of theauger 50 is greater than the inside diameter of theopening 42, the amount that is greater defines an interference amount. This is illustrated inFIG. 9 which shows outsidediameter 86 of theauger 50, theinside diameter 88 of theopening 42 in thetube 38, and theresultant interference amount 90. In one embodiment, theinterference amount 90 is at least 1/16 of an inch. In another embodiment, theinterference amount 90 is at least ⅛ of an inch. In yet another embodiment, theinterference amount 90 is at least ¼ of an inch. Theinterference amount 90 may be made up entirely of the resiliently-deformable material.FIG. 9 shows theauger 50 and theopening 42 as being circles with theresultant interference amount 90 being the same along 360 degrees of the auger/blade. Because thespiral blade 56 and/or itssections interference amount 90 may occur for more than 360 degrees of the auger/blade. It is also contemplated to form thespiral blade 56 to not have aconsistent radial width 76. In this case, theresultant interference amount 90 may occur over less than 360 degrees of the auger/blade. In one specific embodiment, theinterference amount 90 is over 180 degrees of the auger/blade. When thespiral blade 56 of theauger 50 has a resiliently-deformable material at the radialouter edge 74, theinterference amount 90 is deformed (or bent or crushed) against theinner surface 40 of thetube 38 that defines theopening 42. Thisdeformation 92 is shown inFIG. 10 . The type and amount ofdeformation 92 will depend on the resiliently-deformable material used and on theinterference amount 90. - With reference now to
FIGS. 6 and 10 , the radially outward portion of the blade may have anaxial thickness 94 of any amount chosen with the sound judgment of a person of skill in the art. In one embodiment, theaxial thickness 94 is at least 1/16 of an inch. In another embodiment, theaxial thickness 94 is at least ⅛ of an inch. In yet another embodiment, theaxial thickness 94 is at least ¼ of an inch. Thespiral blade 56 may form aspiral angle 96 with respect to theaxial centerline 54 of theshaft 52. Thespiral angle 96 can be any chosen with the sound judgment of a person of skill in the art. In one embodiment, thespiral angle 96 is consistent over the length of theblade 56. In another embodiment, thespiral angle 96 varies over the length of theblade 56. - With reference now to
FIGS. 6 and 8 , theauger 50 may be attached to thegranular spreader 30 in any manner chosen with the sound judgment of a person of skill in the art. In one embodiment, shown, aflange 98 is attached to theshaft 52 and hasopenings 100 that receive fasteners that fasten theauger 50 to thespreader plate 44. The top of theshaft 52 may have anagitator 102 that extends into thestorage container 32 to loosen the granular material so that the granular material flows toward theopening 36. The top of theshaft 52 may havethreads 104 to which theagitator 102 is attached. In another embodiment, shown inFIG. 11 , the top of theshaft 52 has anotherblade 106 which may have resiliently-deformable material, as shown, similar to theblade 56. In this way, theblade 106 causes the granular material to flow from within thestorage container 32 down to theopening 36. - With reference now to
FIGS. 5-6 , theauger 50 and thetube 38 may be oriented in any manner chosen with the sound judgment of a person of skill in the art. Typically, augers used in the sand and salt spreading industry, as with the embodiments shown, are oriented or positioned with theaxial centerline 54 of theshaft 52 at anangle 108 that is perpendicular, 90 degrees, with respect to the ground surface. Theauger 50 of this invention will work well when theangle 108 is 90 degrees. In another embodiment, it will also work well when theangle 108 is an acute angle of at least 30 degrees. In yet another embodiment, theauger 50 of this invention will work well when theangle 108 is an acute angle of at least 45 degrees. - With reference now to all the FIGURES, in operation the
auger 50 can be adjusted between: (1) a first condition where theshaft 52 is rotated, for example bymotor 42, about itsaxial centerline 54 to flow the associated granular material from thestorage container 32, along thespiral blade 56, through theopening 42 in thetube 38, and onto theground surface 18; and, (2) a second condition where theshaft 52 is not rotated about itsaxial centerline 54 and thespiral blade 56 prevents the granular material from flowing through theopening 42 in the tube 38 (primarily because the resiliently-deformable material at the radialouter edge 74 of thespiral blade 56 is positioned within theopening 42 in thetube 38 such that the resiliently-deformable material physically contacts theinner surface 40 of the tube 38). - In another embodiment of this invention, an auger kit comprises an auger like
auger 50 described above. The auger kit may be used when it is desired to replace and existing auger. In one embodiment, the existing auger is not made according to the various embodiments ofauger 50. It may, for example, be similar to theauger 5 described in the Description of the Related Art above. In another embodiment, the existing auger is made according to any of the various embodiments ofauger 50. In any case, to use the auger kit, the existing auger is removed and replaced with anauger 50. Thereplacement auger 50 can then be used as described above. - Numerous embodiments have been described, hereinabove. It will be apparent to those skilled in the art that the above methods and apparatuses may incorporate changes and modifications without departing from the general scope of this invention. It is intended to include all such modifications and alterations in so far as they come within the scope of the appended claims or the equivalents thereof.
- Having thus described the invention, it is now claimed:
Claims (20)
1. A granular spreader assembly comprising:
a storage container that: (1) is supportable to an associated vehicle positioned on an associated ground surface; (2) is suitable to contain associated granular material; and, (3) comprises an opening through which the associated granular material flows when exiting the storage container;
a tube having an inner surface defining an opening that communicates with the opening in the storage container;
an auger that: (1) comprises a shaft having an axial centerline; (2) comprises a spiral blade that: (a) extends radially outwardly from the shaft; (b) has a radial outer edge; (c) wraps around the shaft at least 360 degrees in a spiral manner; and, (d) comprises resiliently-deformable material that extends at least 360 degrees along the radial outer edge; and, (3) is positioned within the opening in the tube such that the resiliently-deformable material physically contacts the inner surface of the tube defining the opening in the tube; and,
wherein the auger can be adjusted between: (1) a first condition where the shaft is rotated about its axial centerline to flow the associated granular material from the storage container, along the spiral blade, through the opening in the tube, and onto the associated ground surface; and, (2) a second condition where the shaft is not rotated about its axial centerline and the spiral blade prevents the associated granular material from flowing between the radial outer edge of the spiral blade and the inner surface of the tube.
2. The granular spreader assembly of claim 1 wherein:
the auger is non-segmented;
the spiral blade comprises a first section and a second section that is non-continuous with the first section;
the first section wraps around the shaft at least 360 degrees in a spiral manner;
the second section wraps around the shaft at least 360 degrees in a spiral manner;
the resiliently-deformable material extends at least 360 degrees along the radial outer edge of the first section; and, the resiliently-deformable material extends at least 360 degrees along the radial outer edge of the second section.
3. The granular spreader assembly of claim 2 wherein:
the first section wraps around the shaft more than 360 degrees;
the second section wraps around the shaft more than 360 degrees;
the resiliently-deformable material that extends along the radial outer edge of the first section extends more than 360 degrees; and,
the resiliently-deformable material that extends along the radial outer edge of the second section extends more than 360 degrees.
4. The granular spreader assembly of claim 1 wherein the auger is positioned with the axial centerline at an angle that is one of: (a) perpendicular with respect to the associated ground surface; and, (b) an acute angle of at least 45 degrees with respect to the associated ground surface
5. The granular spreader assembly of claim 1 wherein the resiliently-deformable material physically contacts the inner surface of the tube defining the opening in the tube with an interference of at least 1/16 of an inch along at least 180 degrees of the spiral blade wrap.
6. The granular spreader assembly of claim 5 wherein the interference of at least 1/16 of an inch is along at least 360 degrees of the spiral blade wrap.
7. The granular spreader assembly of claim 5 wherein the interference is at least ⅛ of an inch along the least 180 degrees of the spiral blade wrap.
8. The granular spreader assembly of claim 1 wherein the resiliently-deformable material is one of brush bristles, rubber, and polymer.
9. The granular spreader assembly of claim 1 wherein the spiral blade has a radial width and the resiliently-deformable material comprises at least 50% of the radial width.
10. The granular spreader assembly of claim 9 wherein the resiliently-deformable material comprises at least 70% of the radial width.
11. The granular spreader assembly of claim 10 wherein the resiliently-deformable material comprises at least 90% of the radial width.
12. The granular spreader assembly of claim 1 wherein the resiliently-deformable material comprises an axial thickness of at least 1/16 of an inch.
13. A method of using a granular spreader assembly comprising the steps of:
(A) providing a granular spreader assembly comprising:
a storage container that: (1) is supportable to an associated vehicle positioned on an associated ground surface; (2) is suitable to contain associated granular material; and, (3) comprises an opening through which the associated granular material flows when exiting the storage container;
a tube having an inner surface defining an opening that communicates with the opening in the storage container; and,
an auger that: (1) comprises a shaft having an axial centerline; and, (2) comprises a spiral blade that: (a) extends radially outwardly from the shaft; (b) has a radial outer edge; and, (c) wraps around the shaft at least 360 degrees along the radial outer edge;
(B) providing a resiliently-deformable material that extends at least 360 degrees along the radial outer edge;
(C) positioning the auger within the opening in the tube such that the resiliently-deformable material physically contacts the inner surface of the tube defining the opening in the tube; and,
(D) adjusting the auger between: (1) a first condition where the shaft is rotated about its axial centerline to flow the associated granular material from the storage container, along the spiral blade, through the opening in the tube, and onto the associated ground surface; and, (2) a second condition where the shaft is not rotated about its axial centerline and the spiral blade prevents the associated granular material from flowing between the radial outer edge of the spiral blade and the inner surface of the tube.
14. The method of claim 13 wherein:
step (A) comprises the steps of: providing the auger to be non-segmented; providing the spiral blade to comprise a first section and a second section that is non-continuous with the first section; wrapping the first section around the shaft at least 360 degrees in a spiral manner; and, wrapping the second section around the shaft at least 360 degrees in a spiral manner; and,
step (B) comprises the steps of: extending the resiliently-deformable material at least 360 degrees along the radial outer edge of the first section; and, extending the resiliently-deformable material at least 360 degrees along the radial outer edge of the second section.
15. The method of claim 14 wherein:
step (A) comprises the steps of: wrapping the first section around the shaft more than 360 degrees in a spiral manner; and, wrapping the second section around the shaft more than 360 degrees in a spiral manner; and,
step (B) comprises the steps of: extending the resiliently-deformable material more than 360 degrees along the radial outer edge of the first section; and, extending the resiliently-deformable material more than 360 degrees along the radial outer edge of the second section.
16. The method of claim 13 wherein step (C) comprises the step of:
positioning the auger with the axial centerline at an angle that is one of: (a) perpendicular with respect to the associated ground surface; and, (b) an acute angle of at least 45 degrees with respect to the associated ground surface.
17. The method of claim 13 wherein step (C) comprises the step of:
contacting the inner surface of the tube with the resiliently-deformable material with an interference of at least 1/16 of an inch along at least 180 degrees of the spiral blade wrap.
18. The method of claim 13 wherein step (B) comprises the step of:
providing the resiliently-deformable material to be one of brush bristles, rubber, and polymer.
19. The method of claim 13 further comprising the steps of:
providing the spiral blade with a radial width; and,
providing the resiliently-deformable material to comprise at least 50% of the radial width.
20. The method of claim 13 wherein step (B) comprises the step of:
providing the resiliently-deformable material to comprise an axial thickness of at least 1/16 of an inch.
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Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2733576C (en) * | 2010-03-09 | 2018-06-19 | Philip Sandler | Truck-mounted material spreader |
CA2975253A1 (en) * | 2014-01-27 | 2015-07-30 | Brush Solutions, LLC | Scrubber system |
US9458585B2 (en) | 2014-04-04 | 2016-10-04 | The Toro Company | Leakproof spreader device |
US11066167B2 (en) * | 2016-02-02 | 2021-07-20 | Chandler Bennett | Method and apparatus used for biological control of agricultural pests |
GB201816331D0 (en) * | 2018-10-06 | 2018-11-28 | Bastien Tommy Lee | Integrated abrasive dispensing system for a wheeled vehicle |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080149215A1 (en) * | 2004-08-13 | 2008-06-26 | Total France | Device for Loading a Vessel with Solid Particles and Method Using Said Device |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3684082A (en) | 1971-02-19 | 1972-08-15 | Gaston County Dyeing Mach | Apparatus for uniformly feeding non-liquid material |
US4157150A (en) | 1977-11-29 | 1979-06-05 | Meyer Products, Inc. | Hopper device for material spreader having a multipositionable cover |
US4166581A (en) | 1978-02-03 | 1979-09-04 | Meyer Products, Inc. | Spreader for particulate material |
US4192418A (en) | 1978-05-04 | 1980-03-11 | Montgomery Max L | Auger conveyer |
US4621968A (en) * | 1984-01-03 | 1986-11-11 | Tiger Industries, Inc. | Segmented auger conveyor |
US5085313A (en) * | 1990-11-07 | 1992-02-04 | United Technologies Corporation | Seal assembly |
US5407123A (en) | 1994-02-22 | 1995-04-18 | Gasdorf Tool & Machine Co., Inc. | Brush auger machine |
US5802994A (en) | 1996-07-03 | 1998-09-08 | Turfco Manufacturing Incorporated | Seeder apparatus for dispensing seed with or without top dressing |
CA2238242A1 (en) * | 1997-05-22 | 1998-11-22 | Timothy William Hewitt | Spreader assembly |
US6446879B1 (en) | 1998-02-04 | 2002-09-10 | H.Y.O., Inc. | Method and apparatus for depositing snow-ice treatment material on pavement |
US7540436B2 (en) | 1999-03-09 | 2009-06-02 | Charles J Truan | Truck bed mounted spreader |
US6715703B2 (en) | 2002-03-05 | 2004-04-06 | The Louis Berkman Company | Spreader |
US6722590B2 (en) | 2002-03-05 | 2004-04-20 | The Louis Berkman Company | Sand/salt spreader |
US6702208B1 (en) | 2002-07-10 | 2004-03-09 | Sno-Way International, Inc. | Hopper spreader apparatus for dry, free flow materials |
CA2549311A1 (en) | 2005-05-31 | 2006-11-30 | Sno-Way International, Inc. | Hopper spreader/sprayer apparatus |
US7380733B2 (en) | 2005-07-21 | 2008-06-03 | Barron & Brothers International | Plural bin metering system |
ITMO20060207A1 (en) * | 2006-06-27 | 2007-12-28 | Wam Spa | AUGER TO BE USED FOR CONVEYORS, COMPACTORS AND THE LIKE. |
WO2010091285A1 (en) * | 2009-02-06 | 2010-08-12 | Brinly-Hardy Company | Broadcast spreader |
US8657208B2 (en) | 2010-04-26 | 2014-02-25 | Meyer Products, Llc | Split flow gate for spreader |
-
2013
- 2013-03-14 US US13/826,861 patent/US9127425B2/en not_active Expired - Fee Related
-
2015
- 2015-08-10 US US14/822,255 patent/US20150345090A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080149215A1 (en) * | 2004-08-13 | 2008-06-26 | Total France | Device for Loading a Vessel with Solid Particles and Method Using Said Device |
Also Published As
Publication number | Publication date |
---|---|
US9127425B2 (en) | 2015-09-08 |
US20140263764A1 (en) | 2014-09-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MEYER PRODUCTS, LLC, OHIO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OUTCALT, ANDREW;WARCHOLA, MARTIN;REEL/FRAME:039987/0316 Effective date: 20130627 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |