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 |
| 5671991 | Cabinet A temperature-controlled cabinets, particularly, refrigerators, freezers, fridge-freezers and drinks coolers (chillers) which, in order to overcome the problem of inferior insulative properties of alternative polyurethane foams used to reduce the emission... | 09/30/1997 |
| 5532440 | Light transmissive sound absorbing member In the sound absorbing member, partition members each formed of sound absorbing material are disposed between first and second light transmissive sheet members to thereby form a plurality of small spaces, and first and second through holes are formed in t... | 07/02/1996 |
| 5521338 | Method of installing sound absorbing bodies on a sound insulation wall and an installed sound absorbing body assembly First, sound absorbing plates made of a hard material are fixed to both side plates of shaped steel members extending upward from a sound insulation wall at intervals that are equal to arrangement spans of the shaped steel members. Then, sound absorbing m... | 05/28/1996 |
| 5517486 | Information recording medium and method of recording or reproducing optical information employing the same An information recording medium including a disc-shaped substrate and a recording layer for optically recording and reproducing information with a laser beam where the recording layer is disposed on the substrate. The surface of the substrate is provided ... | 05/14/1996 |
| 5514021 | Coin spinner and savings box with same The present invention provides a coin spinner comprising a plate having a coin slit formed therein and in which a coin spinning mechanism consisting of a pair of leaf springs is encased. The plate is used with a savings box body having a coin receiver pro... | 05/07/1996 |
| 5497513 | Remedial support appliance for medical use on a leg or an arm The invention relates to a remedial support appliance for medical use, comprising an elasticated knit main portion for compressing a leg or an arm in order to treat venous or lymphatic insufficiency. According to the invention, the main portion is extende... | 03/12/1996 |
| 5477843 | Model gun with automatic bullet supplying mechanism A model gun with automatic bullet supplying mechanism comprises a slider provided to be movable along a barrel, a movable member provided between a bullet holding chamber provided at the back of the barrel and a pressure chamber with variable capacity pro... | 12/26/1995 |
| 5476087 | Model gun with automatic bullet supplying mechanism A model gun with automatic bullet supplying mechanism comprises a slider provided to be movable along the barrel, a movable member provided to be movable along moving directions of the slider between a bullet holding chamber provided at the back of the ba... | 12/19/1995 |
| 5438222 | Electronic device with plural pad connection of semiconductor chip to leads A miniaturized electronic device and a manufacturing method for the same is disclosed. Solder is provided on pads provided on leads and corresponding pads provided on an electronic part chip of the electronic device are placed on the solder. The solder is... | 08/01/1995 |
| 5432642 | Pseudo-luminous panel, substrate therefor and display element and device using the pseudo-luminous panel A pseudo-luminous panel has a substrate and a thin film optical color filter formed all over the main surface of the substrate with or without a reflecting film interposed therebetween. The main surface of the substrate is formed by obliquely downward and... | 07/11/1995 |
| 5427472 | Underwater truss structure An underwater truss structure is formed by continuously linking a plurality of unit structures. Each of the unit structures is formed by assembling a plurality of shafts and ball members so as to form a triangle with the ball members respectively position... | 06/27/1995 |
| 5422457 | Soldering iron with quick change heater assembly with static dissipative and strain relieving receiver for detachable power cord-heater connections A soldering iron including an insulator, a dissipator, and a hollow, cylindrical handle through which the electrical cable travels, and in which the wires, extending from the electrical cable and connected to the heater unit by individual plug and socket ... | 06/06/1995 |
| 5416637 | Pseudo-luminous panel, substrate therefor, and display element and device using the pseudo-luminous panel A pseudo-luminous panel has a substrate and a thin film optical color filter formed all over the main surface of the substrate with or without a reflecting film interposed therebetween. The main surface of the substrate is formed by obliquely downward and... | 05/16/1995 |
