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 |
| 6029648 | Outside wood-burning furnace A natural draft furnace has a firebox inside a water box with fire tubes containing water running through the firebox, flues from the firebox running through the water box, a front/fire door of double wall construction to preheat entering air, a damper in... | 02/29/2000 |
| 4479808 | Pokehole system for fixed bed gasifier and pokehole unit A fixed bed gasifier has an annular series of spaced pokehole units thereabout, each unit of which is an outwardly and upwardly extending tapered tube with an end closure having an eccentrically positioned hole through which a poker may be inserted to pas... | 10/30/1984 |
| 4448185 | Air cooled door handle for heaters The door handle of a heating unit is cooled by providing a duct traversing the interior of the handle from exterior of the firebox of the heating unit to the interior of the firebox. The induced flow cools the handle and provides cool air in the firebox t... | 05/15/1984 |
| 4351248 | Heating boiler for the combustion of baled straw A heating boiler for substantially continuous controlled combustion of baled straw. The boiler includes a straw feed channel communicating with a combustion chamber having a combustion zone adjacent the rear wall of the combustion chamber, a flue gas heat... | 09/28/1982 |
| 4350141 | Blow back prevention apparatus for a wood-burning stove A device for preventing blow back through the fuel loading door in stoves or heaters in which the rate of combustion is controlled by restricting the supply of air to the combustion chamber. When the stove is burning during normal operation the fuel loadi... | 09/21/1982 |
| 4329930 | Draft air deflecting device A draft air deflecting device is mountable proximate to a window contained in a firebox and serves as a conduit which directs draft air across the inner surface of the window prior to its supporting combustion of the fuel in the firebox. In this respect, ... | 05/18/1982 |
| 4261267 | Furnace door The improved furnace of this invention may be used to produce heat by the burning of wood or other combustible matter. The furnace has a combustion chamber with a generally vertical axis and a chamber access door for loading combustible matter into the fu... | 04/14/1981 |
| 4201185 | Method and means for heating by wood burning The wood burning heating means of the present invention utilizes a firebox having a grate adjacent the lower end and a flue opening adjacent the upper end thereof. A baffle is positioned immediately below the flue opening in such a manner as to deflect ri... | 05/06/1980 |
| 4016045 | Coke oven door sealing system A sealing arrangement for a door of a coke oven chamber includes a fluid channel around the door carrying gases from a coke oven chamber. Means is provided that subdivides the channel into separate fluid channelways and means is provided for conducting th... | 04/05/1977 |
| 3957591 | Coking oven A coking oven has an upright wall formed with an opening which is normally closed by a door past which noxious gases escape at least at times. Outwardly adjacent the opening and the wall are formed one or more upright channels having open ends located bel... | 05/18/1976 |
