# US 5,699,863 A · Apparatus for grooming fields > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,699,863 A - Document ID: US5699863A - Status: Granted - Kind: A - Application number: 08/191,945 - Filed: 1994-02-03 - Granted: 1997-12-23 - Earliest claimed: 1994-02-03 - Assignees: Applied Design Technology, Ltd. - Inventors: William L. Figura - Web page: https://patentgrep.com/patent/US5699863A ## CPC - A01B 49/02: with two or more soil-working tools of different kind - A01B 31/00: Drags - A01B: SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL (making or covering furrows or holes for sowing, planting or manuring A01C5/00; mowers convertible to soil working apparatus or capable of soil working A01D42/04; mowers combined with soil working implements A01D43/12; soil working for engineering purposes E01, E02, E21) ## Abstract The invention discloses apparatus for grooming, leveling and conditioning athletic fields comprised of a leveling trowel having beveled ends. Soil is worked using elastomeric flails disposed into contact with the surface by a rigid weight bar pivotally mounted on the upper surface of the independently pivotable flails. The grooming apparatus may be mounted with a two or three-point hitch assembly or towed by a drawbar from any utility tractor or other landscape vehicle. ## Claims ### Claim 1 Apparatus for grooming fields comprising: an elongated tool bar having a forward portion, a bottom portion, a top portion, a first end, a second end, and a rearward portion; means for attaching said tool bar to a motor vehicle so that said forward portion is proximate to said motor vehicle and the tool bar is oriented generally perpendicular to the ordinary direction of travel of said motor vehicle; a leveling trowel affixed to and dependent from said tool bar so that said leveling trowel comes into contact with the field to be groomed; means for attaching a pivot rod to said tool bar; a multiplicity of elongated parallel-aligned flails pivotally disposed upon said pivot rod and extending rearward from said pivot rod, said flails each being comprised of: means for pivotal attachment to said pivot rod, an upper portion, a flattened, soil-contacting lower portion, and a multiplicity of soil-working protrusions dependent from said soil-contacting lower portion; and biasing means for biasing said flails against the soil. ### Claim 2 (depends on 1) The apparatus defined in claim 1 further comprising: a weight bar for biasing said flails against the soil, said weight bar being oriented generally parallel to said tool bar and disposed across said upper portions of said flails generally above said soil-working protrusions; and pivotal links connecting said weight bar to said pivot rod. ### Claim 3 (depends on 2) The apparatus defined in claim 2 wherein said leveling trowel is further comprised of: an elongated soil-working portion having a central leveling segment and two end leveling segments; said soil-working portion is angled at an acute angle with respect to soil present in the direction of apparatus travel; said central leveling segment of said soil-working portion is straight and generally horizontal; and said end leveling segments are gently beveled upward away from the soil. ### Claim 4 (depends on 3) The apparatus of claim 3 further comprising means for scarifying said fields attached to said motor vehicle forward of said leveling trowel. ### Claim 5 (depends on 4) The apparatus of claim 4 wherein said means for scarifying is comprised of: a frame; means for attaching said frame to a motor vehicle; and means for attaching chisels to said frame. ### Claim 6 (depends on 5) The apparatus of claim 5 wherein said means for scarifying is further comprised of: rectangular, horizontally disposed, planar chisel elements connected to said frame by means of flattened chisel shanks dependent from said frame. ### Claim 7 (depends on 2) The apparatus of claim 2 further comprising means for scarifying said fields attached to said motor vehicle forward of said leveling trowel. ### Claim 8 (depends on 7) The apparatus of claim 7 wherein said means for scarifying is comprised of: a frame; means for attaching said frame to a motor vehicle; and means for attaching chisels to said frame. ### Claim 9 (depends on 8) The apparatus of claim 8 wherein said means for scarifying is further comprised of: rectangular, horizontally disposed, planar chisel elements connected to said frame by means of flattened chisel shanks dependent from said frame. ### Claim 10 (depends on 1) The apparatus of claim 1 further comprising means for scarifying said fields attached to said motor vehicle forward of said leveling trowel. ### Claim 11 (depends on 10) The apparatus of claim 10 wherein said means for scarifying is comprised of: a frame; means for attaching said frame to a motor vehicle; and means for attaching chisels to said frame. ### Claim 12 (depends on 11) The apparatus of claim 11 wherein said means for scarifying is further comprised of: rectangular, horizontally disposed, planar chisel elements connected to said frame by means of flattened chisel shanks dependent from said frame. ### Claim 13 A method for grooming an athletic field comprising the steps of: mounting a leveling trowel having beveled ends onto a self-propelled motor vehicle adapted for movement across said athletic field engaging said leveling trowel with the soil of said athletic field at an acute angle with respect to the direction of trowel movement across said athletic field; moving said leveling trowel across said athletic field by means of said self-propelled motor vehicle, and; working the soil with parallel aligned, pivotally mounted, downwardly biased, elastomeric flails having protrusions on their soil-contacting portions. ### Claim 14 (depends on 13) The method of claim 13 further comprising the steps of: disposing a weight bar oriented parallel to the surface of said field and perpendicular to the direction of travel of said self-propelled motor vehicle upon said elastomeric flails oppositely from said soil-contacting portions of said elastomeric flails; urging said flail soil-contacting portions downwardly into contact with the soil of said field; breaking up said soil to form a surface suitable for athletic activities with the movement of said flail soil-contacting portions across said field; permitting said elastomeric flails to yield upwardly in response to irregularities in said field only if said weight bar is also deflected upwardly; thereby smoothing the soil. ### Claim 15 (depends on 14) The method of claim 14 further comprising the steps of: mounting a scarifier engagable with the soil of said field onto said self-propel led motor vehicle forward of said leveling trowel; scarifying said soil by engaging said scarifier with said soil while said motor vehicle moves across said field, and; leveling said soil with said leveling trowel, elastomeric flails and weight bar. ### Claim 16 Apparatus for grooming fields comprising: an elongated tool bar having a forward portion, a bottom portion, a top portion, a first end, a second end, and a rearward portion; means for attaching said tool bar to a motor vehicle so that said forward portion is proximate to said motor vehicle and the tool bar is oriented generally perpendicular to the ordinary direction of travel of said motor vehicle; a leveling trowel affixed to and dependent from said tool bar so that said leveling trowel comes into contact with the field to be groomed; means for attaching a pivot rod to said tool bar; a multiplicity of elongated parallel-aligned flails pivotally disposed upon said pivot rod and extending rearward from said pivot rod, said flails each being comprised of: means for pivotal attachment to said pivot rod, an upper portion, a flattened, soil-contacting lower portion, and a multiplicity of soil-working protrusions dependent from said soil-contacting lower portion; and a weight bar for biasing said flails against the soil, said weight bar being oriented generally parallel to said tool bar and disposed across said upper portions of said flails generally above said soil-working protrusions; and pivotal links connecting said weight bar to said pivot rod.