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 |
| 5106340 | Portable field thrasher A field thrasher includes a housing assembly and a thrashing assembly. The housing assembly includes an upper thrashing enclosure with a mouth opening and a chaffe discharge opening. A lower, collection enclosure is mounted below the thrashing enclosure a... | 04/21/1992 |
| 5041058 | Portable thrasher A portable thrasher includes a housing with an interior, a mouth for passing crop heads into the interior, a grain discharge opening and a chaffe discharge opening. A thrashing assembly includes a primer mover mounted on the housing, a generally cylindric... | 08/20/1991 |
