Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 4018870 | Preparation of synthetic zeolite molecular sieves In the manufacture of synthetic zeolites, the formation of unwanted, contaminating zeolites is inhibited by the addition to the reactant mixture of a basic nitrogen-containing dye, and makes it possible to synthesize new zeolites AG5 and AG6 herein define... | 04/19/1977 |
| 4016245 | Crystalline zeolite and method of preparing same A new crystalline zeolite, designated ZSM-35, a method of making same and the use thereof in catalytic conversion of hydrocarbons is the subject of this application. The new zeolite has a composition, in the anhydrous state, expressed in terms of mole rat... | 04/05/1977 |
| 3996337 | Crystalline beryllo-alumino-silicates and process for their manufacture Alkali metal beryllo-alumino-silicates of the mordenite type form, under hydrothermal conditions (100°-300° C in a Carius tube), from aqueous mixtures containing the structural components SiO2, Al2 O3 and BeO and alkali ... | 12/07/1976 |
| 3972983 | Crystalline zeolite ZSM-20 and method of preparing same A new crystalline zeolite, designated ZSM-20, a method of making same and the use thereof in catalytic conversion of organic compounds, e.g. hydrocarbons, is the subject of this application. The new zeolite has a composition expressed in terms of mole rat... | 08/03/1976 |
| 3950496 | Synthetic zeolite ZSM-18 A new crystalline aluminosilicate zeolite is disclosed which has the following formula in terms of mol ratios of oxides on a water-free basis: wherein M is at least one cation having a valence n and z is at least 10. This zeolite is designated ZSM-18.... | 04/13/1976 |
