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US 4,899,828 AGranted
Ground aeration device
OwnerClark R. Harrisinventor
Life of this patent
Estimating the term…
Abstract
There is disclosed a ground aeration device which forces aeration spikes into the soil without requiring ballast weight. The aeration device is comprised of a cylindrical roller having a plurality of spikes projecting therefrom, the spikes being aligned in a helical row which extends once around the circumference of the roller; support arms having the roller rotatably secured to one end; and mounting brackets which are adapted to mount the opposed ends of the support arms to the front of a lawn mower, the support arms being oriented toward the ground at an angle of between 30 and 60 degrees in relation to the horizon such that the spikes of the roller penetrate the underlying groundsurface.
Claims19
A ground aeration device, comprising:
- a. a cylindrical roller having a plurality of spikes projecting therefrom, said spikes being aligned in a helical row which extends substantially once around the circumference of said roller;
- b. support arms having said roller rotatably secured to one end;
- c. mounting brackets which are adapted to pivotally mounted the opposed ends of said support arms to the front of a wheeled trolley such that the forward motion of the trolley forces said spikes of said roller to penetrate the underlying ground surface, said support arms being oriented toward the ground at an angle of between 30 and 60 degrees in relation to the horizon, (such that said spikes of said roller penetrate the underlying ground surface).
A ground aeration device, comprising:
- a. a cylindrical roller having a plurality of spikes projecting therefrom, said spikes being aligned in a helical row which extends substantially once around the circumference of said roller;
- b. support arms having said roller rotatably secured to one end, said support arms having a protective guard attached thereto extending over said roller;
- and
- c. mounting brackets which are adapted to mount the opposed ends of said support arms to the front of a lawn mower, said mounting brackets having at least two "C" clamps with upper and lower contact members to permit attachment of said mounting bracket to said lawn mower, said mounting brackets having stop means to maintain said support arms oriented toward the ground at an angle of 60 degrees in relation to the horizon such that said spikes of said roller penetrate the underlying groundsurface, said support arms being pivotally attached to said mounting bracket such that said roller may be moved from an operative position wherein said spikes engage a groundsurface to a transport position wherein said spikes are removed from said groundsurface.
1 more element
A ground aeration device, comprising:
- a. a cylindrical roller having a plurality of spikes projecting therefrom, said spikes being aligned in a helical row which extends once around the circumference of said roller;
- b. support means having said roller rotatably secured to one end, said support arm having a protective guard attached thereto extending over said roller;
- and
- c. mounting brackets which are adapted to mount the opposed ends of said support arms to the front of a lawn mower, said mounting brackets having at least two "C" clamps with upper and lower contact members to permit attachment of said mounting bracket to said lawn mower and means for adjusting the relative distance between said upper and lower contact members, said upper contact members being pivotally adjustable to engage and conform to the slope of the exterior surface of said lawn mower, said mounting brackets having means for lateral adjustment of the relative distance between said "C" clamps, said mounting brackets having stop means to maintain said support arms oriented toward the ground at an angle of 60 degrees in relation to the horizon such that said spikes of said roller penetrate the underlying groundsurface, said support arms being pivotally attached to said mounting bracket such that said roller may be moved from an operative position wherein said spikes engage a groundsurface to a transport position wherein said spikes are removed from said groundsurface.
1 more element
A ground aeration device, comprising:
- a. a cylindrical roller having a plurality of spikes projecting therefrom, said spikes being aligned in a helical row which extends substantially once around the circumference of said roller;
- b. support arms having said roller rotatably secured to one end, said support arms having a protective guard attached thereto extending over said roller;
- c. a first mounting member adapted to be secured to the front of a lawn mower, said first mounting member having at least two "C" clamps with upper and lower contact members to permit attachment to said lawn mower and means for adjusting the relative distance between said upper and lower contact members, said upper contact members being pivotally adjustable to engage and conform to the slope of the exterior surface of said lawn mower, said first mounting member having means for lateral adjustment of the relative distance between said "C" clamps, said first mounting member having at least two vertically extending female couplings;
- and
- d. a second mounting member having at least two male couplings which are adapted to be received in said female couplings of said first mounting member, said second mounting member being secured to the opposed ends of said support arms, said second mounting member having stop means to maintain said support arms oriented toward the ground at an angle of 60 degrees in relation to the horizon such that said spikes of said roller penetrate the underlying groundsurface, said support arms being pivotally attached to said second mounting member such that said roller may be moved from an operative position wherein said spikes engage a groundsurface to a transport position wherein said spikes are removed from said groundsurface.
2 more elements
Dependencies are inferred from the claim text.