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 |
| 7117700 | Wheel-immobilizing device The present invention provides a wheel-immobilizing device that does not require holes or indentations in the wheel in order for the device to be secured around the wheel or caster being immobilized. Additionally, a wheel-immobilizing device according to the inventi... | 10/10/2006 |
| 6227337 | Clutch for pivoting workpiece support A clutch and a workpiece support incorporating the same selectively restrict rotation of a rotatable member through the use of one or more rollers that are pinched between the outer surface of the rotatable member and corresponding convergent surfaces dis... | 05/08/2001 |
| 4936420 | Taxiguard A restraining device for an aircraft with wheels having tires thereon, comprised of a base plate upon which is mounted a restraint members to prevent movement of the tire when it is positioned on the base plate. The restraint members are hinged on one sid... | 06/26/1990 |
