Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 4483273 | Shelter pressurization and filter installation A pressurization and filter installation for shelters, notably of the substantially horizontal tubular tunnel type, comprises at least one entry-exit section communicating with a respective entry-exit airlock. This is adapted to be pressurized, in use, to... | 11/20/1984 |
| 4478350 | Spherical container or chamber The invention deals with a spherical or almost spherical chamber or container 1 which can seal in pressure and splinters produced by explosion, deflagration or detonation of explosive substances. The chamber is constructed with an outer structural shell 2... | 10/23/1984 |
| 4389947 | Blast suppressive shielding Manufactures, apparatus and processes for shielding the hazards of exploss, pyrotechnics and propellants during manufacture, demolition, demilitarization storage, transportation and use.... | 06/28/1983 |
| 4370934 | Method for production of a compression-proof shelter and prefabricated means for use in this method In the production of a compression-proof shelter a semi-finished car garage is used consisting of reinforced lightweight thin concrete walls and being open at the front side. It is required that a personal living chamber is partitioned off against a filte... | 02/01/1983 |
| 4357882 | Building for detonating explosives A building structure for recurrent detonation of explosive charges of up to several hundreds of kilos with the aim to obtain effective sound dampening and economical use of materials. The building comprises a tube shaped steel structure (2) with two gable ... | 11/09/1982 |
| 4228788 | Self-contained all-terrain living apparatus A living apparatus comprises a first reservoir within the ground surface of circular form and having a quantity of water therein. A building having a roof and a peripheral side wall of circular form is concentrically nested and spaced within said reservoi... | 10/21/1980 |
| 4129123 | Defined space having sound-insulated and light-impermeable walls, preferably intended to enclose a bed The environment of an enclosed space is controlled to simulate the conditions of an arbitrarily selected geographic site. The sound, temperature and light of the space are raised and lowered in accordance with a predetermined program to coincide with the ... | 12/12/1978 |
