"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 5353881 | Counter-rotating twin shaft system for gardening machines A gardening utility machine having a counter-rotation twin shaft system can perform multiple types of work required for gardening (tilling, soil removal, weeding, raking and shredding of leaves), snow/ice removal and for power de-thatching and mowing of l... | 10/11/1994 |
| 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 |
| 4791996 | Agricultural tractor with lightweight frame and front and rear wheels forming substantially continuous wheel path A tractor having a high power-to-weight ratio (power 100 kw, weight 3500 kg) is obtained by using light-weight components (e.g., made from synthetic resin) for the cab, and by making the wheels smaller than is usual, i.e., with a diameter of 1.3 meters, a... | 12/20/1988 |
| 4694872 | High performance drive tire arrangement for agricultural tractors A lightweight device for obtaining improved performance of rubber tired vehicles. The arrangement has high-strength, thin-gauged traction intensifying means secured to the driving member for a tire, having a smooth or shallow tread, providing improved dra... | 09/22/1987 |
| 4603916 | Lightweight retractable track-wheel for agricultural tractors and the like A lightweight retractable track-wheel for obtaining less soil compaction and improved traction efficiency of rubber tired vehicles. The track-wheel provides high-strength, thin-gauged spade-lugs, rotatably secured to a main frame for providing higher draw... | 08/05/1986 |
| 4450915 | Self-propelled disk harrow A self-propelled disk harrow apparatus having four gangs of disc members attached thereto which are rotated to propel the disk harrow and to thereby till the soil. Wheels are provided for allowing the disk harrow to travel on public roads and to aid in pr... | 05/29/1984 |
| 4369846 | Tilling machine for sandy soil A frame carries two transverse digger shafts each having a plurality of diggers mounted thereon in spaced apart relationship such that the diggers form independent furrows. The frame is supported on wheels on a single axis between the two digger shafts an... | 01/25/1983 |
| 4295531 | Auger-equipped plow A ground working implement is provided wherein a motor driven auger is positioned beneath and partially enclosed by a truncated V-shaped plowshare. The auger contributes to the forward movement of the implement. The space between the auger and the plowsha... | 10/20/1981 |
| 4290488 | Driving machine including speed synchronized earth working traction wheel The invention relates to a public works machine constituted by a frame, by moving members with which the said frame rests on the grounds, by a device for driving the said moving members and, by a wheel provided with teeth for penetration into the ground, ... | 09/22/1981 |
| 4276940 | Garden implement with a drum motor A garden implement utilizing the shell of a drum motor as an essential constituent part of the garden implement. Non-rotating shafts of the drum motor are carried by prongs of a frame. The shell of the drum motor constitutes a roller forming a garden impl... | 07/07/1981 |
| 4236582 | Powered ground aerator A powered machine for moving along the ground surface and producing a succession of holes therein to aerate the soil. The present aerator includes a pair of ground-penetrating members that are moved alternately to engage, penetrate, and disengage the grou... | 12/02/1980 |
| 4214632 | Soil tilling machine having apparatus for automatic negative braking and drive control A self powered, handlebar operated, earth cultivating machine having a worm gear engine drive and a transversely extending, soil engaging rotating tine wheel is provided with a pair of ground engaging traction wheels spaced therebehind and a sprocket and ... | 07/29/1980 |
| 4174756 | Self-propelled disk harrow machine A self propelled disk harrow having four gangs of disc members attached thereto which are rotated to propel the disk harrow and to thereby till the soil. Wheels are provided for allowing the disk harrow to travel on public roads and to aid in propelling t... | 11/20/1979 |
| 4172501 | Self propelled cage wheel tractor Disclosed herein is a self propelled drum wheel tractor for use in puddling rice paddies. A pair of drums having a plurality of knife elements disposed thereon serve to bury or puddle the rice stalk, while the field is still flooded.... | 10/30/1979 |
| 4154305 | Aerator apparatus An apparatus for aerating lawns or the like which features a novel construction wherein the tines include a rotating drilling action with a forward and downward motion to effectively aerate the turf as well as impart a forward walking type action to the a... | 05/15/1979 |
| 4142586 | Tines construction This tines assembly is for attachment to a drive shaft and includes a front shaft portion, a rear shaft portion connected between the front shaft portion and the drive shaft, and front and rear tines mounted in removable relation to the rear shaft portion... | 03/06/1979 |
| 4096915 | Ground working apparatus with tools to draw the apparatus forward A cordless earth tiller has a housing mounted upon wheels and including a handle for guiding and controlling the tiller and tilting the same in a fore-and-aft direction. A power driven crankshaft disposed forwardly of the wheels carries a plurality of arm... | 06/27/1978 |
| 4090570 | Bladed wheel tractor A bladed wheel tractor having wheels with angularly disposed blades. Each wheel has a web, radial to the periphery of which is mounted a plurality of flat plates joined to form a tubular member or rim. Each plate has a diagonally mounted blade element, th... | 05/23/1978 |
| 4077477 | Soil cultivating implements According to this invention there is provided a soil cultivating implement comprising a plurality of downwardly extending tines arranged in a transverse row and rotatable ground engaging members that are located in front of and behind the row of tines wit... | 03/07/1978 |
| 4037544 | Agricultural machine A self-propelled agricultural machine which includes a vehicle capable of automonously advancing when driven, and an assembly of implements capable of processing the soil during advancement of the vehicle. The machine includes a primary source of mechanic... | 07/26/1977 |
| 3958520 | Agricultural machine for tilling the soil A main frame is supported, adjacent its rear end, by a pair of wheels, and the front end of the main frame is arranged for connection to the coupling pin of either a conventional tractor, preferably having a power take-off, or of a separate traction and s... | 05/25/1976 |