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 |
| 7371003 | Mixer foot and hand held mixer equipped with the foot A foot component of a hand mixer or blender, the hand mixer or blender having a case that houses a motor and the foot component being constructed to be coupled to the case. The foot component is composed of: a tube having a lower end; a bell made of a first material... | 05/13/2008 |
| 6991264 | Compressor and method of connecting pipe to the same A compressor which has a pipe coupling structure capable of fluid-tightly connecting a refrigerant pipe to a pipe coupling port, without needing any welding process to connect the pipe to the pipe coupling port, and a method of connecting the refrigerant pipe to the... | 01/31/2006 |
| 6467814 | Retaining apparatus for connecting a pipe system to a vessel in a nuclear reactor Apparatus has a vessel fitting (2) and a retainer (10) that connect a core spray pipe system (4) to an opening (14) in a wall (8) in a vessel (9) in a boiling water nuclear reactor. The vessel fitting (2) has a plurality of resilient beams (76a), (766b), ... | 10/22/2002 |
| 6460896 | Sewer pipe coupling A pipe coupling for transverse connection of a drainpipe to a concrete sewer pipe of larger relative diameter. The coupling has a hollow, longitudinally extending cylindrical body with first and second ends and interior and exterior surfaces. The body has... | 10/08/2002 |
| 6129146 | Manifold for a brazed radiator A heat exchanger is disclosed with one piece manifolds formed from a unitary sheet of metal. Each manifold has first and second sidewalls and a third sidewall extending therebetween the a lap joint between the side edges of the metal sheet. The first and ... | 10/10/2000 |
| 5340166 | Conduit collar and method of installing the collar The invention relates to a conduit collar and method for installing the conduit collar in a circular hole through concrete and stone structures used in industrial construction work. The conduit collar includes at least one circumferential rib with an oute... | 08/23/1994 |
| 4750763 | Device for anchoring a flexible tubular system on a rigid shoulder by means of an armature with linked segments Radial device for anchoring a flexible tubular structure in an opening in a rigid wall, characterized by flexible tubular structure having a bead reinforced by an armature with linked segments, embedded in rubber, composed of segments made integral by a n... | 06/14/1988 |
