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 |
| 4697360 | Ski boot with self-powered ski boot control devices This invention relates to a ski boot provided with self-powered electric and/or electronic devices. The surface of the boot is covered by a plurality of solar cells, which convert the solar radiation into electric energy which acts to integrate a series o... | 10/06/1987 |
| 4685226 | Ski boot having an opening quarter formed of more interconnected parts The ski boot comprises a quarter formed of two complementary parts which partly overlap each other when closed along two vertically extending lateral centerlines. The rear part of the quarter is pivoted to the boot shell, and the quarter front part may be... | 08/11/1987 |
| 4670999 | Foot securing device, particularly for ski boots The device comprises hollow frusto-conical elements adapted for enveloping a ski boot inner shoe and/or in combination also a ski boot shell. The frusto-conical elements are adapted to be pulled toward the rear portion of a boot. To this end, each frusto-... | 06/09/1987 |
| 4619057 | Tightening and adjusting device particularly for ski boots The device is composed of a vertical axle positioned in a case made rigid with the rear half-shell of the quarter of ski footwear. The axle having at a middle region thereof, an inclined tooth gear which is actuated by a ratchet lever to cause its co-dire... | 10/28/1986 |
| 4592567 | Modifiable stiffness ski The ski comprises a basic self-supporting ski structure, the front and rear portions whereof are provided with mounts made rigid therewith and retaining at least a replaceable small thickness rectangular batten or insert mechanically affecting the flexure... | 06/03/1986 |
