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 |
| 6209535 | Heating apparatus A heating apparatus comprises a combustion chamber, formed of an assembly having a rear wall, two lateral walls, an upper wall and a lower wall. The combustion chamber has at least one outlet for flue gases. The walls forming said combustion chamber are c... | 04/03/2001 |
| 6055977 | Windows or the like of heaters, these windows or the like being equipped with an expansion compensation device, and device for this purpose Disclosed is a window construction for a heater, which generally has a frame and at least one panel fitted on the frame. The frame and the at least one panel are usually made of different materials having different expansion coefficients. An expansion com... | 05/02/2000 |
| 6015287 | Liquid hydrocarbon burner A liquid hydrocarbon burner includes a single-walled pot; and a catalytic element placed centrally in the single-walled pot and comprised of an assembly of blades which are arranged concentrically around a vertical axis, which have in axial cross-section ... | 01/18/2000 |
