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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7273111 | Grading implement A grading implement including main body having a left end, a right end and a length that extends between the left and right ends. The main body also includes a front side and a back side. A claw-blade is positioned at the front side of the main body. Side blades are... | 09/25/2007 |
| 7117953 | Scraping device and a system and a method for collecting materials A scraping device, a system and a method for collecting a material are provided. The scraping device may have a bowl having a first end and a second end. A lip may be positioned at the first end and may cover an opening at the first end. In an embodiment, direct mou... | 10/10/2006 |
| 7077215 | Trap rake steering travel limiter A sand trap rake having a frame, a pair of rear wheels supporting the frame, a single front wheel supporting the frame, and a steering system operably interconnecting the steering wheel to the single front wheel. A grading device is coupled to the frame and is raise... | 07/18/2006 |
| 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 |
| 7063166 | Earth grooming device An earth grooming device for attachment to a vehicle includes a rectangular frame having a plurality of teeth secured to the front thereof to form a rake and a scraper blade secured to the rear of the frame. A side rail is attached to each side of the frame with eac... | 06/20/2006 |
| 7048069 | Agricultural disc harrow and method An agricultural implement consisting primarily of a towed frame supported on retractable wheels, the frame having a plurality of independently adjustable spindles for setting height and angle of attack for various size rotatable discs. Each disc is staggered to redu... | 05/23/2006 |
| 6913086 | Skimmer Apparatus and method for shearing a soil layer and removing it is provided. An apparatus in accord with the present invention has a frame mounting a shearing blade reciprocally movable substantially vertically into an operational position where the shearing blade wi... | 07/05/2005 |
| 6840332 | Road scraper A road scraper includes a frame having forwardly positioned blades extending rearwardly and laterally for directing loose material against a rear blade extending angularly in the opposite direction between rearwardly extending side frame members thereby causing loos... | 01/11/2005 |
| 6347670 | Earth moving scraper An apparatus for modifying the earth's surface by removing soil from the surface, moving the soil to a new location and filling low areas. It comprises a frame carried by at least two wheels, a tongue mounted to the frame for attachment to a tractor, a cu... | 02/19/2002 |
| 6328115 | Stabilizer for dirt scraper A wheeled dirt scraper having a pair of stabilizer rails pivotally mounted onto each of the side wings of the box, the rails being provided with damping devices to reduce, absorb and eliminate shock effects. The rails have a relatively large surface conta... | 12/11/2001 |
| 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 |
| 6119792 | Land smoother and packer system A land smoother and packer system for smoothing and packing irregularities in a ground surface. The inventive device includes a frame, a plurality of wheels, a right blade pivotally attached to the frame, a center blade attached to the frame, a left blade... | 09/19/2000 |
| 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 |
| 6079969 | Compactor The invention relates to a compactor apparatus for compacting granular material, such as granulated activated carbon, when it is laid in a slow sand filter, comprising a plough, a compacting device and a mechanism to provide swivelling of the apparatus in... | 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 |
| 5873417 | Cultivator attachment for a skid steer tractor unit A cultivator attachment is mounted on a skid steer tractor and includes a main frame, a vertical receptacle attached to the frame to receive and attach to the mounting plate member of the skid steer tractor and a plurality of cultivator discs carried on t... | 02/23/1999 |
| 5833012 | Scraper and drag attachment The invention comprises a scraper and drag attachment for a tractor. The attachment has a main frame with a hitch at it forward end for attachment to a tractor. A scraper is fixed to the main frame behind the hitch and a first pivotal frame is pivotally m... | 11/10/1998 |
| 5769171 | Dirt scraper having a hinged floor A dirt scraping implement is provided including an external box-type body frame, a scraping blade, a hinged floor, and an activator for the hinged floor wherein packed dirt may be scraped and transported by relatively small farm machinery.... | 06/23/1998 |
| 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 |
| 5265681 | Landscape levelling and raking apparatus A landscape leveling and raking apparatus has a frame, a handle protruding upwardly from the frame, a rake pivotally coupled to the frame to protrude downwardly and rearwardly therefrom, a screed fixed to the frame forwardly of the rake, a plurality of ti... | 11/30/1993 |
| 5248000 | Harrowing device A harrowing device for harrowing a ground surface includes a haulable frame. A plurality of blade holders are secured to the frame, and extend downward from the frame. The blade holder has a cavity, a pair of holes, a pair of inclined interior face in the... | 09/28/1993 |
| 4908981 | Devices and methods for selective application of herbicide For the control of weeds in turfgrass, herbicide is selectively applied to the weeds overgrowing the height of the turfgrass after mowing. An applicator pad carrying the herbicide is drawn across the turfgrass as the pad is held parallel to the underlying... | 03/20/1990 |
| 4892155 | Leveling attachment for a skid-steer vehicle An earth working apparatus features a horizontally-oriented rigid support frame across a forward end of which is disposed a generally vertical scraper blade. Mounted forwardly of the frame is a roller. A holding device projects rearwardly from the frame a... | 01/09/1990 |
| 4886124 | Soil grading apparatus with sifting and transporting capability The apparatus includes a rigid frame having two rectangular openings therein that are covered with sections of expanded metal grating material. The frame has front and rear angled or sloping cutting edges that can cause some of the soil being leveled to b... | 12/12/1989 |
| 4838360 | Minimum tillage implement A minimum tillage implement attaches to the tool bar of a planter device to allow topping of the rows, tilling of the rows, planting and chemical application to be accomplished in a single pass over the rows of a field. The minimum tillage implement compr... | 06/13/1989 |
| 4798151 | Furrow opening point A furrow opening point 40 is described for attachment directly to the seed boot of a hoe type seed drill between the split packer wheels. The furrow opening point 40 has an elongated body 50 that extends from an upper fertilizer receiving portion 56 to a ... | 01/17/1989 |
| 4618004 | Method and apparatus for building borders This invention is directed to an improved method and apparatus for building ridges and borders on agricultural fields which are suitable for the containment of irrigation water in such fields. The apparatus comprises means to cultivate at least a pair of ... | 10/21/1986 |
| 4593766 | Strafing pit conditioning apparatus with magnetic sweeper A crawler tractor with a dozer blade and fitted with accessories to loosen the ground in the strafing pit area of an Air Force gunnery range and simultaneously remove from the ground rocks the size of a man's fist and larger and spent projectiles. The tra... | 06/10/1986 |
| 4446925 | Soil cultivating machine An agricultural apparatus and more specifically a cultivator intended to till the soil for the incorporation of chemical solutions and to prepare it for sowing. This cultivator has a double-wheel-mounted frame capable of being hitched to a tractor, at lea... | 05/08/1984 |
| 4391051 | Machine arrangement for forming tracks and/or levelling surfaces related to cross-country ski trails or downhill ski slopes An apparatus for making ski tracks and/or levelling ski slopes is mounted in front of a driving vehicle so as to be freely vertically movable relative to the vehicle to adjust its position to varying snow heights encountered in treating the snow cover. Fr... | 07/05/1983 |
| 4348825 | Tracking or grading unit for ski-trails and paths A tracking or grading unit for ski-trails and paths, comprises a sliding arrangement having at least one sliding or rolling front and rear support and a frame upon which the supports are mounted. The unit includes a cutting device which is adjustable in h... | 09/14/1982 |
| 4323126 | Ridge mulch tillage method and apparatus A method for preparing a field which has crop residue rows for subsequent row crop planting comprises cutting a plurality of furrows between crop residue rows and lifting and turning over the soil from the furrows into ridges, and simultaneously scraping ... | 04/06/1982 |
| 4315547 | Agricultural attachment An attachment for agricultural machines includes a frame having a leading and trailing portion, a first soil-treating unit located at the leading portion of the frame and a second soil-treating unit located at the trailing portion of the frame. Between th... | 02/16/1982 |
| 4271612 | Apparatus for producing ski tracks for a ski trail An apparatus for producing ski tracks for a ski trail, comprising a sliding/planing body with a flat sliding surface which curves upwardly at the forward section of said body, and spaced-apart track-forming members depending downwardly from said sliding s... | 06/09/1981 |
| 4268187 | Drag-type spreading apparatus for road construction mixtures The present spreading apparatus for road construction mixtures, such as bituminous cold mixtures, has at least two V- or U-shaped screeding structures or screeds one leading and the other trailing with respect to the working direction. The leading screed ... | 05/19/1981 |
| 4256182 | Hammer plow A hammer plow is provided with a series of disks spaced along and rotatable with a sleeve that turns about an axle on a number of bearings located therebetween. Each of the disks has a plurality of hammers rotatably attached thereto, which are free to rot... | 03/17/1981 |
| 4127949 | Snowmobile trail groomer An elongated main frame is provided including front and rear end portions. An elongated dual track endless track drive assembly is oscillatably supported from the rear end portion of the frame for angular displacement about a first horizontal transverse a... | 12/05/1978 |
| 4110919 | Ski trail forming and conditioning drag An apparatus and more specifically a drag adapted to form and condition a ski trail, and in particular two generally parallel ski traces as commonly used for cross-country skiing, such that the ski traces are of uniform parallelism and depth and are free ... | 09/05/1978 |
| 4098344 | Earthworking implement The present invention relates to an earthworking implement or attachment adapted to be connected to and powered by a prime mover such as a tractor, front-end loader, or the like. More particularly, the earthworking implement of the present invention is de... | 07/04/1978 |
| 4002413 | Adjustable mounting for auxiliary farm implement An auxiliary implement adapted for use in combination with different makes and models of first implements includes an adjustable mounting for securing the auxiliary implement to different sizes and shapes of frame members in the first implements. The moun... | 01/11/1977 |
