In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 7240627 | Crop debris clearing device A residue coulter apparatus that cleanly severs and clears crop debris from a planting row, causing minimal disturbance to the soil. The residue coulter apparatus comprises a pair of flat discs each having a plurality of back swept shark type teeth extending about t... | 07/10/2007 |
| 7222575 | Apparatus for preparing soil for the placement of seed and additive An apparatus for preparing soil for the placement therein of at least one of seed and fertilizer. A frame is provided with there being first structure on the frame for penetrating the soil to create an opening for at least one of seed and fertilizer as the frame is ... | 05/29/2007 |
| 7065947 | Powered ZRT sand grooming vehicle and grooming brush rake A sand grooming vehicle comprises a vehicle having zero radius turn capability. The vehicle includes a front caster wheel, two independently driven rear wheels, and twin control sticks for allowing spin turning of the vehicle by driving the outboard drive wheel and ... | 06/27/2006 |
| 7024845 | Grass striping apparatus for use with lawn vehicle A grass striping apparatus for use with a lawn vehicle, e.g., a lawn mower. The striping apparatus may include a frame assembly operatively coupled to the vehicle, e.g., to a cutting deck of the vehicle, and a wiper member extending along a rear side of the cutting ... | 04/11/2006 |
| 6923267 | Linear turf aeration apparatus A linear aeration apparatus is operable to form parallel linear aeration trenches into the surface of the ground. Aeration of highly compacted turf areas can be accomplished by first spreading a top dressing material over the surface of the field and then forming li... | 08/02/2005 |
| 6454018 | Ground surface debris collection mat A mat for sweeping a surface, formed of grid-like, semi-flexible material. The mat is pulled over the surface to effect the sweeping. The material has open slots (112a,112b) therethrough. The slots have a leading edge and a trailing edge disposed transver... | 09/24/2002 |
| 6257345 | Device for collection of debris A device (300) for collecting debris from a surface. The device has a generally planar matting material (15) the undersurface of which is formed with depending bristles (14). The device (300) has an opening (16) therethrough which when the device is moved... | 07/10/2001 |
| 6079503 | Device for collection of debris A device for collecting debris from a surface. The device has a generally planar matting material the undersurface of which is formed with depending bristles. The device has an opening therethrough whereby when the device is moved over a ground surface wi... | 06/27/2000 |
| 5918684 | Device for collection of debris A device for collecting debris from a surface. The device has a generally planar matting material the undersurface of which is formed with depending bristles. The device has an opening therethrough whereby when the device is moved over a ground surface wi... | 07/06/1999 |
| 5704430 | Ground driven row cleaning apparatus An improved row cleaning apparatus to selectively clean away residue from conservation tilled fields without cultivation of the soil. When mounted on tractor-drawn implements, including planters, the cleaning action of the present invention improves depth... | 01/06/1998 |
| 5535831 | Sand distributor and spreader A sand distributor and spreader for filling sand into aerated holes in golf greens wherein a frame has slidably mounted thereon a plurality of brushes. A gear box, or other source of mechanical energy, is interconnected to the frame such that an output of... | 07/16/1996 |
| 5477927 | Turf maintenance and brushing machine A powered brushing system can be mounted on triplex mowers, front mowers, utility tractors and other motor vehicles for use in conjunction with the aeration and maintenance of golf courses, particularly tee areas and greens. The holes left by core or spik... | 12/26/1995 |
| 5413056 | Method and apparatus for no-till planting A no-till planting apparatus and method is disclosed for use with a planter unit which plants seeds as the planter unit is pulled along a predetermined path. The planter unit includes a double disk opener for cutting a furrow at a predetermined depth and ... | 05/09/1995 |
| 5284211 | Ground surface debris collection mat A mat for sweeping a surface is provided with an elongated slot therethrough which extends transverse to the intended direction of movement of the mat over a surface whereby debris on the surface will pass upwardly through the slot for collection on the u... | 02/08/1994 |
| 5076180 | Trash clearing brush unit for a planter unit A trash clearing brush unit for use ahead of a planter unit including a pair of circular brushes rotatably mounted to a vertical support bar and angularly inclined toward one another. The support bar is attachable to a planter unit and vertically adjustab... | 12/31/1991 |
| 4785890 | Ground-driven rotary row cleaner The specification discloses an improved row cleaning apparatus to selectively clean away mulch from conservation tilled fields without cultivation of the soil. When mounted on a tractor-drawn planter unit, the cleaning action of the present invention impr... | 11/22/1988 |
| 4452315 | Straw and debris deflector for soil opening apparatus Disclosed is an apparatus for deflecting straw and other debris from in front of a soil opening implement used in farming. The straw and debris deflector is particularly useful where the soil is generally not tilled. The straw and debris deflector include... | 06/05/1984 |
| 4109729 | Device and method for diverting rolls of sod delivered from conventional sod cutting apparatus The device is pulled behind conventional sod cutting apparatus and includes an angled roller that diverts the various sod rolls sequentially discharged from the apparatus, doing so to one side of the path traversed by the apparatus. The device also includ... | 08/29/1978 |