SOIL AERATOR

• US 3,794,121 A
• Filed: 08/04/1972
• Issued: 02/26/1974
• Est. Priority Date: 08/04/1972
• Status: Expired due to Term

• Current Assignee: David A. Drozak
• Original Assignee: David A. Drozak
• Inventors: Drozak, David A.
• Primary Examiner(s): Pellegrino, Stephen C.
• Application Number:
  US05/278,029
• Time in Patent Office: 571 Days
• Field of Search: 172/21,22,554,540,122,713 111/91
• US Class Current: 172/21
• CPC Class Codes: A01B 45/02 for aerating

Abstract

A soil aerator wherein a cylindrical drum is mounted on a framework to be carried by a tractor. A plurality of tubular soil penetrating spikes are connected to protrusions extending from the external surface of the cylindrical drum by inserting the openings of the tubular spikes over the protrusions and into abutment with the drum.

Claims

1. A soil aerating apparatus comprising a framework, a cylindrical drum member mounted on said framework and rotatable with respect to said framework about the longitudinal axis of said cylindrical drum member, a plurality of protrusions extending from the exterior surface of said drum member, said protrusions each being rectilinear with annular outside surfaces and of constant diameter along their lengths, said protrusions being oriented with their longitudinal axes extending radially outwardly from the longitudinal axis of said cylindrical drum member, a plurality of rectilinear open end tubular spike members each defining a circular opening extending centrally along its length and mounted on a protrusion and each having its opening at one end inserted over a protrusion and its said one end juxtaposed the external surface of said cylindrical drum member for abutment with said cylindrical drum member, the opposite end of each of said spike members being truncated at an angle and elliptically shaped, the diameter of the opening at the said one end of each of said spike members being sized to fit snugly about said protrusions, aligned openings extending through said protrusions and the spikes mounted on the protrusions, and a pin member extending through said aligned openings of said protrusions and spikes mounted on said protrusions for holding the spikes on the protrusions and preventing the spikes from rotating on the protrusions.

2. A soil aerating apparatus comprising a rotatable support member rotatable in a predetermined direction, a plurality of rectilinear support protrusions of circular cross section connected to said rotatable support member and extending radially outwardly from the axis of rotation of said rotatable support member, a plurality of rectilinear spike members, each of said tubular spike members having a circular opening in one of its ends of a size to fit snugly about one of said protrusions, said one end of the spike members inserted over a support protrusion and juxtaposed said rotatable support member, means for securing said one end of each of said tubular spike members on said support protrusions for abutment with said rotatable support member, each of said support protrusions and said tubular spike members inserted on a support protrusion extending radially outwardly from the axis of rotation of said rotatable support member and having its outer end truncated at an angle which forms a surface facing the direction of rotation of said rotatable support member.

3. The soil aerating apparatus of claim 2 and wherEin said rotatable support member comprises a cylindrical drum rotatable about its longitudinal centerline.

4. The soil aerating apparatus of claim 2 and wherein each of said tubular spike members defines a circular inner opening extending longitudinally therethrough, and the truncated outer end thereof is elliptically formed.

5. The soil aerating apparatus of claim 2 and wherein said means for securing each of said spike members on said support protrusions comprises aligned openings defined in said each spike member and its support protrusion, and a connecting pin inserted through the aligned openings of each spike member and its support protrusion.

6. The soil aerating apparatus of claim 2 and wherein said plurality of support protrusions are arranged in a plurality of aligned rows about said rotatable support member, each row of said support protrusions being parallel to the axis of rotation of said rotatable support member, with the support protrusions of alternate rows of support protrusions being offset along the axis of rotation of said rotatable support member from the support protrusions in the next adjacent row of support protrusions.

7. The soil aerating apparatus of claim 2 and further including a framework connected to and rotatably supporting said rotatable support member for mounting said rotatable support member on the hydraulic lift assembly of a tractor.