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| Number | Title | Issue Date |
| 7293612 | Walk aerator with ground following coring head A walk aerator comprises a frame supported by a plurality of ground engaging wheels, the frame carrying a coring head having a plurality of side-by-side tine assemblies. The wheels define a wheelbase which is substantially equal to or less than the width of a coring... | 11/13/2007 |
| 7096969 | Walk aerator with inboard wheels A walk aerator comprises a frame supported by a plurality of ground engaging wheels, the frame carrying a coring head having a plurality of side-by-side tine assemblies. The wheels define a wheelbase which is substantially equal to or less than the width of a coring... | 08/29/2006 |
| 6561282 | Aeration machine An aeration machine 10 comprising a drive mechanism 16 connected to sets of tines 18 by a vibration absorbing linkage arrangement 34. The arrangement 34 enables the tines 18 to remain vertical when extending into the ground thereby avoiding elongation of ... | 05/13/2003 |
| 6166331 | Device and method relating to cable branching The present invention relates to the field of arrangements at cable branchings and methods for manufacturing cable branches. One or more main conductors in the main cable are cut and released from the main cable. The cut and released main conductors are s... | 12/26/2000 |
| 6041869 | Turf aerator with constantly vertical tines Turf aerator having a crank and crank arms which present a parallelogram for supporting the aerator assembly, including the aerating tines.... | 03/28/2000 |
| 6003613 | Apparatus for aerating a ground layer The invention relates to an apparatus for aerating a ground layer including a frame movable along a ground surface and a number of substantially vertically placed aerating pins movable in and out of the ground layer. Each pin is engaged by a pivot arm mou... | 12/21/1999 |
| 5988290 | Bi-directionally biased vertical cultivating machine A cultivating machine has a structure arranged to be mounted on ground engaging wheels for movement in a line of travel. At least one tool support is mounted on the structure so as to be moveable with respect thereto, and a drive is also mounted on the st... | 11/23/1999 |
| 5794708 | Triangular cross section trenching apparatus for edging A sod cutting machine in combination with turf cutting mechanism for cutting a longitudinally elongated trench in turf that has a trench bottom transversely inclined relative to the slope of the soil transverse to the direction of the trench elongation. T... | 08/18/1998 |
| 5730225 | Power cultivating device with blades actuated with mirrored acuator motion A power cultivator including a power source, a shaft and a cultivating head having a pair of cultivating blades is described. The cultivating head includes an assembly that opens and closes the blades using a mirrored arcuate motion. The cultivating head ... | 03/24/1998 |
| 5697453 | Subsurface cutting tool A subsurface weed tool which makes use of a variety of different detachable blade attachments to cut the roots of and other plants. The tool can be provided with a variety of different attachments, permitting it to be used for other purposes such as aerat... | 12/16/1997 |
| 5398767 | Ground treatment apparatus A lawn treatment apparatus includes an open-bottomed support body having three treatment implements in the form of spiking devices or brushing/sweeping devices adapted to move through the open bottom. The support body carries a driving mechanism to drive ... | 03/21/1995 |
| 5048617 | Hand-held tiller machine A hand-held tiller is adapted for use in loosening and breaking up the soil and is made up of a skid, an elongated handle extending forwardly of the skid with a drill motor at one end of the handle which is drivingly connected into a power transmission dr... | 09/17/1991 |
| 4941416 | Actuating mechanism for a ground-engaging tool An actuating mechanism (20) for a ground-engaging tool is arranged as a swinging parallelogram such that the tool has varying components of velocity in the horizontal and vertical directions. The mechanism is synchronized such that the tool has a rearward... | 07/17/1990 |
| 4921051 | Green refresher A soil tiller or cultivator adapted to till the surface soil covered with a lawn by plural cutters to cure the compaction of the soil below the lawn surface. The till is provided with a motion transmission unit for transmitting the motive power of a drivi... | 05/01/1990 |
| 4901655 | Cultivator A special cultivating machine, lawn care apparatus and process are provided to properly prepare, efficiently condition, and gently cultivate the soil, turf and lawn in a uniform manner without uprooting, ruining, or damaging existing healthy plants and gr... | 02/20/1990 |
| 4896730 | Apparatus for cultivating rice and other crops An apparatus which can cultivate rice and other crops, comprising a frame having a plurality of transversely extending spaced cultivator bars, each of the bars having a plurality of spaced elongated soil working members extending generally vertically down... | 01/30/1990 |
| 4658909 | Vehicle mounted aerating machine A turf aerating machine including a plurality of tyne arms, having tynes attached to their lower ends, and extending substantially vertically downwardly from the cranks of a crankshaft located transversely of the direction of travel of the aerator. A driv... | 04/21/1987 |
| 4632189 | Soil aerating machine A self-propelled lawn aerating machine includes a plurality of generally vertically reciprocally movable tines operated by a cam shaft for removing plugs of soil from a lawn. The tines are spring biased upwardly and in forward direction toward a bumper bo... | 12/30/1986 |
| 4365673 | Tiller head with shiftable blades A tiller head for a soil tilling device including a shaft which carries a number of blades which rotate with the shaft, and a drive for causing rotation of the shaft. A housing surrounds the drive. At least one of the blades is mounted for oscillatory mov... | 12/28/1982 |
