Did You Know...
...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 |
| 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 |
| 4520873 | Tractor-driven agricultural apparatus including a plurality of rotary-driven agricultural units Agricultural apparatus to be driven by a tractor comprises a main frame attachable to the rear end of the tractor, a pair of ground-engaging wheels carried on the opposite ends of the main frame, a pair of rotary-driven agricultural units mounted on oppos... | 06/04/1985 |
| 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 |
| 4252199 | Soil working machines A soil working machine has elongated carriers that extend transverse to the direction of travel, one behind the other. Eccentric mechanisms are attached to each carrier to move tools depending from the carriers, back and forth in directions parallel to th... | 02/24/1981 |
| 4189006 | Soil cultivating implements An implement has rows of tines on carrier supports that are elongated and extend transverse to the direction of travel. A transmission shaft with pairs of eccentrics is positioned between the supports and connected to move the tines of the supports to and... | 02/19/1980 |
| 4187914 | Soil cultivating implements An implement has a forward row of soil working members that have flat blades and the blades are periodically raised and lowered to initially coarsely break the soil with pivotal motions induced by respective eccentrics mounted on a horizontal shaft. The m... | 02/12/1980 |
| 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 |
| 4077476 | Soil cultivating implements A cultivating implement has an elongated frame portion and soil working members journalled in the frame portion to rotate about upwardly extending axes. Each soil working member has a single downwardly extending tine that is spaced from a shaft that defin... | 03/07/1978 |
| 4051902 | Soil cultivating implements A cultivating implement has one or more forward cultivating rotors that are driven to work the top soil. During this working, stones and debris are unearthed. At the rear of the cultivating members, one or more rows of soil working members are moved throu... | 10/04/1977 |
| 3941193 | Ground tilling apparatus Disclosed is a tilling apparatus characterized by a regulating drive connection between the towing tractor drive axle and the tiller shaft, the tiller tines having a modified arcuate configuration which provide a pocketed, rather than a furrowed or channe... | 03/02/1976 |
