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 |
| 7258178 | Auger planter An auger planter for forming small holes in the earth for the planting of flower bulbs, plant seedlings and plants, and for the insertion of termite monitors and baits. The auger includes a central shaft and a single helical flighting having its leading edge configu... | 08/21/2007 |
| 7257898 | Cutting head for string trimmer A cutting head for a string trimmer is provided which accommodates any string gauge thickness and may be easily and quickly re-threaded upon failure of a string previously disposed therein. The cutting head has spring-biased clamping members which are each mounted w... | 08/21/2007 |
| 7234535 | Apparatus for turf aerification A novel drill for the aerification of turf grasses is disclosed. The drill comprises a chuck and a fluted turf drill bit held by the chuck. The chuck includes a locking mechanism which permits the chuck to rotate freely about its longitudinal axis when loaded in com... | 06/26/2007 |
| 7177725 | System for the monitor and control of rest rooms The present invention is directed to a rest room control system including one or more sensors configured to monitor or control a function associated with the rest room. The system also includes a controller operably coupled to the one or more sensors, and configured... | 02/13/2007 |
| 7171798 | Rotary shredding blade A brush cutter blade for shredding of grasses, weeds, vines and brush and also for saw cutting of saplings and tree branches, comprising a circular saw blade member with auxiliary cutting elements projecting from the underside of the blade. Several preferred embodim... | 02/06/2007 |
| 7163067 | Ground maintenance apparatus A ground maintenance apparatus which may be used for slicing, scarifying, dethatching and mowing of grass or turf is disclosed. The apparatus may also be used for sweeping and vacuuming of turf, and is particularly directed at ground or turf aeration apparatus. ... | 01/16/2007 |
| 7131500 | Sports surface reconditioner A device for reconditioning a damaged sports surface. The device includes at least one rotatably driven shaft with two ends, one of which is connected to a frame, the other end being disposed towards the surface. The driven shaft is disposed orthogonal relative to t... | 11/07/2006 |
| 6955227 | Auger for mixing and burrowing An auger to assist in ground-burrowing or mixing paint or concrete, is used by attaching it to an electric or cordless power source. The major advantages over previous augers are: a hex head design prevents slipping in the drill chuck, an offset boring tip provides ... | 10/18/2005 |
| 6938365 | Dampening apparatus A dampening means for a tool, the dampening means controlling pivoting of the tool with respect to a support means of a support structure. ... | 09/06/2005 |
| 6904976 | Powered soil tillage device A powered, lightweight soil tillage device, including an elongated hollow support member having a motor and handle at the upper end thereof, and the tillage assembly mounted at the lower end thereof. The tillage assembly comprises a pair of beams which are mounted o... | 06/14/2005 |
| 6902010 | Foldable implement frame and hitch A foldable implement frame and hitch having a front end for attachment to a draft vehicle having dedicated transport wheels movable between a stored position wherein the transport wheels are out of contact with the ground and a transport position wherein the dedicat... | 06/07/2005 |
| 6843324 | Gardening implement A manual gardening implement having two tools, for example ground-working tools having tines for breaking up soil. At least one of the tools has two positions, a working position in which it is located at the working end of a shaft of the implement, and a non-workin... | 01/18/2005 |
| 6763895 | Cultivating apparatus Soil cultivating apparatus which includes at least one rotary cutting assembly having a plurality of earth working implements (25, 26) spaced around a peripheral region of a rotary support member (18) mounted for rotation about a central upright axis o... | 07/20/2004 |
| 6736217 | Weed, weed root and root vine removing, cultivating tool What I claim is new about my invention is that the double-edged plows on the ends of the plurel to tines (eight as shown) can cultivate and entangle weeds, weed roots and root vines in forward or reverse, will entangle the plural (eight as shown) of tines and double... | 05/18/2004 |
| 6722444 | Rotary hand-held tilling and weed removing device A rotary hand-held tilling and weed removing device comprises a shaft; a âTâ shaped handle and two lock collars and is attachable to the chuck of a power drill. The shaft is provided with rotary arms which allow tilling and weed removal in very confined areas an... | 04/20/2004 |
| 6681865 | Rotary cutting device with quick-release blades A rotary cutting device or element (20) includes a base or support housing (30) with a centrally arranged fastening region (32) adapted to operatively connect with an associated drive (24) that rotates the element (20) about a first rotational axis (44). ... | 01/27/2004 |
| 6651753 | Earth leveling excavator An excavating apparatus having a rotating cutting head for precision removal of soil, for site preparation prior to construction projects where level grade is required. The powered cutting head is mounted on a longitudinal frame, with travel of the cuttin... | 11/25/2003 |
| 6595298 | Multi-purpose weeder with auger A multi-purpose weeder attachable to a hand-held rotary power implement is designed to weed, aerate and till soil. A vertical shaft is removably attached to the implement to permit erect operation of the weeder. A pair of substantially spiral-shaped blade... | 07/22/2003 |
| 6349775 | Means for controlling a driven soil working machine on the basis of information derived from a map A method and apparatus for obtaining optimal cultivation of a parcel of land. A soil working machine with drivable working members, such as a rotary harrow, is provided with soil working members which rotate about approximately vertically orientated axes,... | 02/26/2002 |
| 6227317 | Garden auger having wings and cutters A garden auger having an auger blade with a substantially rectangular body section for use with a drill motor. The preferred auger body including toed-in wings for rapidly clearing earth from the created hole and cutters formed at one end of the auger bla... | 05/08/2001 |
| 6161625 | Equipment for digging ground without destructive excavation work Equipment for digging ground in urban areas includes a hinged support and maneuvering arm (3), an omnidirectional damping device (36), a vibration or oscillation generator (38), a motor (40) and a tool (28) which is made to rotate by the motor and provide... | 12/19/2000 |
| 6125776 | Device for digging planting holes for bedding plants and the like A device for digging holes for setting out bedding plants, including a rotary tool for digging a hole, the tool having a shank adapted to be chucked to a power drill and passing through an inverted bowl shaped transparent plastic cover to contain excavate... | 10/03/2000 |
| 6102130 | Soil preparation for planting tool and method A soil preparation-for-planting tool which has a drive motor with a rotatable portion including a central shaft with a distal cutting end, with the central shaft further having secured therewith an outwardly extending support to which is affixed one blade... | 08/15/2000 |
| 6056067 | Apparatus for clearing debris A method and apparatus for clearing debris is disclosed. More particularly, a method and apparatus for clearing manure and other material from under a feedlot fence row is disclosed. The apparatus is preferably mounted to a vehicle such as a skid loader. ... | 05/02/2000 |
| 5944115 | Cultivator A cultivator for the selective cultivation of limited ground areas, which includes a body adapted to be mounted on a prime mover, so that the body is able to be selectively brought into contact with the ground surface to be cultivated. A rotatable shaft e... | 08/31/1999 |
| 5909778 | Hand-held soil tilling system A hand-held soil tilling system including four tiller components. Each tiller component includes an elongated central extent that is formed with a point at its end. Each tiller component also includes an upper extent in a curved configuration terminating ... | 06/08/1999 |
| 5862658 | Grass remover for termite bait station This is a grass remover to remove grass from the surface of an area in a circular path about the top of a guide hole in which a termite bait station may be inserted. This includes a circular skirt with a hub in the middle and a plurality of cutting blades... | 01/26/1999 |
| 5810093 | Multi-purpose landscaping device for use with a hand-held rotary power tool A multi-purpose landscaping device for use with as hand-held rotary power tool such as an electric drill includes a shaft adaptable at one end for removable and operative connection to such a power tool, and a rotatable implement removably attached to the... | 09/22/1998 |
| 5667019 | Soil treating device The invention relates to a soil treating device comprising at least one working element rotatably driven by a rotation shaft and a frame accommodating the working element and displaceable practically parallel to the ground, characterized in that the rotat... | 09/16/1997 |
| 5632344 | Cultivator A cultivator which may be attached to a tractor or similar vehicle for use in cultivating rows of plants, includes a rotary tine assembly having a plurality of vertically-oriented, rotary tines for cultivating soil on each side of a row of plants; shields... | 05/27/1997 |
| 5564353 | Method for forming a planting hole in soil while leaving a substantial portion of pulverized soil in the hole A planting hole forming apparatus includes a central shaft having a longitudinal axis, a bottom leading end and an upper trailing end, and a discontinuous flighting comprising a plurality of flighting sections spiraling around the central shaft at spaced ... | 10/15/1996 |
| 5540287 | Ground working device for powered hand-held rotary devices A ground working device for powered hand-held rotary devices includes four resilient ground working members mounted upon and extending downwardly from a mount and includes a weighted hub which along with the mount is detachably attached to the bottom of a... | 07/30/1996 |
| 5491963 | Garden cleaning implement for cutting/macerating weeds above and below ground A garden cleaning implement (10) for weeds and the like comprising a cutting mechanism (14) and a retractable guard mechanism (28), generally free to "float" up and down about the cutter mechanism, carried on, for example, an extended pole handle (22). Th... | 02/20/1996 |
| 5287932 | Soil tilling device A soil tilling device that is pulled by a tractor vehicle comprises at least one tool holder that is supported at a supporting element and is rotatably drivable. At least two circular disk-shaped soil tilling tools are connected to a respective one of the... | 02/22/1994 |
| 5228521 | Plant removing, mowing and trimming apparatus A helical coil assembly, consisting of spaced coil turns mounted on a shaft at right angles to the coil, is rotated by any suitable power source. Any plant growth stalks in the path of this rotating coil enter and are caught in the channel between the spa... | 07/20/1993 |
| 5222563 | Mulching apparatus Mulching apparatus having a tapered tooth structure which prepares a planting spot such that, when the apparatus is withdrawn from the ground, mulched residue remains within or adjacent to the planting spot. The apparatus may be removably attached to the ... | 06/29/1993 |
| 5133269 | Plant hole digger with cylindrical cutter This invention is comprised of an auger with fixed or replaceable tips designed to cut openings through sheet plastic or fiberglass ground coverings and drill, in a continuous operation, an appropriate diameter hole for planting seedlings or seeds as may ... | 07/28/1992 |
| 5056605 | Multipurpose cutting means A multipurpose cutting device for use with power drives is disclosed. Specific and different blade configurations are provided on opposite sides of an elongated bar or a disk type support for performing different cutting functions. By securing one side of... | 10/15/1991 |
| 5054559 | Soil-working machine for plants grown in rows A cultivator for such crops as beets, maize, potatoes, etc., planted in rows. A machine frame can be mounted on the three-point hitch of a tractor. Several chopping tools mounted on it, can be detached from tool holders, and are rotated on vertical shafts... | 10/08/1991 |
| 5005653 | Hoe attachment for a line trimmer A hoe attachment for a conventional rotary line trimmer designed to cultivate soil when rotated and which is particularly useful for cultivating small areas of soil. The attachment comprises a plurality of downwardly extending arms each having a blade pro... | 04/09/1991 |