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 |
| 6024178 | Direct harvester device and method A direct harvester includes a cutting portion, a lifting portion and a feeding portion. The cutting portion typically includes a cutter rod for severing plant roots and a kicker rod for encouraging the plant to the soil surface. The lifting portion typica... | 02/15/2000 |
| 5477926 | Agricultural implement for separating and crushing rocks An agricultural implement which may be pulled by a tractor in an agricultural field for improving soil conditions, provided with the capability to sort rocks according to their sizes whereby rocks of only desired dimension range are crushed, this implemen... | 12/26/1995 |
| 5450907 | Rock collecting implement An implement for gathering objectionable rocks and debris from the ground including a positive stop for limiting the range of displacement of the gathering mechanism relative to the ground. In the embodiment described, the gathering mechanism comprises a ... | 09/19/1995 |
| 5076046 | Harvester for vine crops A harvester is provided for mechanized harvesting of vine crops such as cucumbers. A harvester head is provided with a plurality of rollers, each of which comprises a cage structure rotatable about a central longitudinal axis, a rotatable shaft within the... | 12/31/1991 |
| 4609049 | Rotary wheel type rock picker A wheel mounted pull type chassis includes a side hitch bar for securement to a tractor or the like. A reel assembly is journalled for rotation and is situated transversely at the front of the chassis and picks up rocks, stones, dirt, etc. and deposits sa... | 09/02/1986 |
