Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 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 |
| 5441116 | Multiple purpose agricultural power tool A multiple purpose agricultural power tool is provided which consists of a removable cover to fit over an open top of a housing, a wheel assembly which is rotatable and mounted to the housing, so that it can travel along the ground and a pair of legs affi... | 08/15/1995 |
| 5193624 | Device for loosening sub soil The invention concerns a device (1), which is self-powered or can be connected-up to a vehicle, for loosening the sub-soil, the device having an array of piercing tools (13) mounted substantially perpendicular to the direction of travel of the device. Bef... | 03/16/1993 |
| 5172768 | Device for loosening soil The process serves for the loosening of soil in the subsoil and topsoil areas and for introduction of fertilizers as well as subsoil loosening and/or for soil cultivation as well as the introduction of other additives with the use of digging tools 2, 2', ... | 12/22/1992 |
| 4819734 | Lawn aerator with rocker arm tine synchronizing means Rocker arms are mounted for pivoting at their centers about a vertical axis on a chassis with the pivot axis in line with a longitudinal slot through which a crank arm projects. The upper end of the crank arm is pivoted to a crank which upon rotation reci... | 04/11/1989 |
| 4811794 | Garden tiller with reciprocating tines A garden tilling apparatus has a frame with movable arms extending out of the frame and soil-working tines connected to the forward-most portion of the movable arms. Inside the frame, a crankshaft is mounted coupled to the arms and the arms pivotally atta... | 03/14/1989 |
| 4645012 | Turf aerating apparatus A turf aerator includes a wheel-supported frame and drive means for propelling the frame across the ground at a predetermined rate. A pair of substantially vertical tine arms each having a plurality of downwardly directed turf coring tines attached to the... | 02/24/1987 |
| 4353422 | Hand held power machine with oscillating tool A light weight hand-held power actuated tool for aiding an operator do work such as raking, thatching, cultivating, hoeing and sweeping. A main member with handles for operator support has a motor attached. The motor activates a mechanism which holds a working... | 10/12/1982 |
| 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 |
