Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7160232 | Coil spring connector for use in an exercise apparatus A spring connecting apparatus is disclosed for use in an exercise apparatus that has one or more springs fastened between a movable member and a stationary member. The connector apparatus is adapted to fasten one end of a spring to one of the members. This apparatus... | 01/09/2007 |
| 7141085 | Refractory protected replaceable insert The refractory protected, replaceable insert for a gasifier includes a replaceable floor edge insert that is formed with a predetermined mating profile that is complementary to a finished mating profile of the gasifier floor. The geometry of the mating profiles of t... | 11/28/2006 |
| 6926747 | Demountable multi-purpose exercise device A demountable multi-purpose exercise device including a pair of elongate plunger members, a central guide member having a pair of oppositely disposed portions for demountable telescopic engagement with the pair of elongate plunger members. Further included is a depr... | 08/09/2005 |
| 6805773 | Method of protecting a surface in a gasifier The method of protecting a surface in a gasifier which is normally an exposed surface in the gasifier. The method includes forming a refractory attachment with a securement surface that confronts the protectable surface in the gasifier and mechanically securing the ... | 10/19/2004 |
| 6228224 | Protective refractory shield for a gasifier The protective refractory shield for a gasifier includes a refractory attachment that is mechanically secured to a protectable surface of the gasifier. The refractory attachment includes a plurality of attachment members of predetermined angular sector. T... | 05/08/2001 |
| 6132560 | Rotary drum cooler having adjustable lifters A rotary drum cooler having a shell for cooling particulate material (e.g. coke particles) wherein the volumetric capacity of the lifters within the shell which lift the material from the bottom of the shell to the exit thereof can be adjusted to thereby ... | 10/17/2000 |
| 5730763 | Heat exchanger and apparatus for gasification and/or reforming The invention relates to a process and an apparatus for gasifying liquid and/or fine-grain solid gasification substances and/or for reforming a gas, using a gasification agent, in a reaction (1). In the process the process heat is supplied by heat carrier... | 03/24/1998 |
| 4202672 | Apparatus for gasification of finely divided fuel A coal gasification reactor is disclosed which includes a gasification chamber surrounded by a pressure shell, a tubular quench section above the gasification chamber and a superposed waste heat boiler. Heat expansive members are provided in the form of b... | 05/13/1980 |
