...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 |
| 7861408 | Heat transfer surface for electronic cooling A cooling surface for cooling an electronic component, the surface having two sets of fins, each set of fins defining a set of channels, and a number of passageways connecting the sets of channels. The cooling surface can be attached to an electronic component, such... | 01/04/2011 |
| 7637012 | Method of forming protrusions on the inner surface of a tube A method of forming a plurality of protrusions on the inner surface of a tube to reduce tube side resistance and improve overall heat transfer performance. The method includes cutting through ridges on the inner surface of the tube to create ridge layers and lifting... | 12/29/2009 |
| 7601413 | Random installation carpet tiles Carpet tiles having patterns and color schemes that obviate the need to orient the tiles relative to each other. The tiles exhibit orthogonal ambiguity, meaning that they may be laid in any side-by-side orientation with respect to adjacent tiles without looking out ... | 10/13/2009 |
| 7509828 | Tool for making enhanced heat transfer surfaces An improved tool assembly for enhancing the surface of a heat transfer tube is provided. The tool assembly includes rods having cutting tips and positioned in rod guides which are slidably positioned in shafts provided in a tool holder. In an equilibrium state, the ... | 03/31/2009 |
| 7350443 | Asymmetrical carpet tile design, manufacture and installation Design and manufacture of floor covering webs for, design, manufacture and installation of, asymmetrical carpet tiles having a prominent design element not intersected by a tile edge. Bands or regions define “frames” around what will become central carpet tile a... | 04/01/2008 |
| 7316366 | Compact creel A highly mobile, compact creel that utilizes frames for holding yarn packages (or bobbins) for feeding yarn to a tufting machine. Each frame includes holders affixed to the frame for holding yarn packages facing front and back, a header attachable to the frame for d... | 01/08/2008 |
| 7311137 | Heat transfer tube including enhanced heat transfer surfaces The invention relates to enhanced heat transfer surfaces and methods and tools for making enhanced heat transfer surface. Certain embodiments include a boiling surface that include a plurality of primary grooves, protrusions and secondary grooves to form boiling cav... | 12/25/2007 |
| 7297385 | Rotationally determinate, positionally ambiguous striped carpet tiles A carpet web and a method of forming a carpet web having a striped pattern and color scheme that permits carpet tiles cut from the web to be installed without regard to relative tile positions and without visibly disrupting the pattern, but rather maintaining the ap... | 11/20/2007 |
| 7284325 | Retractable finning tool and method of using An improved tool and method for enhancing the surface of a heat transfer tube are provided. The tool, which can be easily added to existing manufacturing equipment, includes cutting bits that may be retracted with a housing. The cutting bits include a cutting edge t... | 10/23/2007 |
| D549029 | Face of floorcovering | 08/21/2007 |
| 7254964 | Heat transfer tubes, including methods of fabrication and use thereof An improved heat transfer tube, an improved method of formation and an improved use of such a heat transfer tube is disclosed. The heat transfer tube includes an outer surface with a plurality of radially outwardly extending helical fins, the fins being grooved to d... | 08/14/2007 |
| 7178361 | Heat transfer tubes, including methods of fabrication and use thereof The present invention discloses an improved heat transfer tube, an improved method of formation, and an improved use of such heat transfer tube. The present invention discloses a boiling tube for a refrigerant evaporator that provides at least one dual cavity nuclea... | 02/20/2007 |
| 7128937 | Method of preserving meat of slaughtered poultry or parts thereof In a method of chilling slaughtered poultry or parts thereof, the poultry is conveyed through a chilling room, or at least through a part of said chilling room, and in the process is exposed to a stream of chilling air. During the chilling of the poultry the skin of... | 10/31/2006 |
| 7083841 | Orthogonally ambiguous carpet tiles having curved elements Carpet tiles having patterns and color schemes that obviate the need to orient the tiles in a particular positional or rotational relationship relative to each other. The tiles exhibit orthogonal ambiguity, meaning that they may be laid in any side-by-side orientati... | 08/01/2006 |
| 7059954 | Method and device for processing a poultry leg In a method and device for processing a poultry leg which is hanging from a carrier and comprises at least a drumstick, the operations are carried out: cutting into the drumstick substantially around the drumstick in the vicinity of the tarsal joint by means of at l... | 06/13/2006 |
| 7004415 | Compact creel A highly mobile, compact creel that utilizes frames for holding yarn packages (or bobbins) for feeding yarn to a tufting machine. Each frame includes holders affixed to the frame for holding yarn packages facing front and back, a header attachable to the frame for d... | 02/28/2006 |
| 7004830 | Method and device for processing poultry In a method and device for carrying out at least one processing operation on a slaughtered bird which is hung by its legs, the bird is conveyed on a hook of a conveyor towards and into the processing area of a processing device in order for the at least one processi... | 02/28/2006 |
| 6997797 | Device for processing slaughtered animals or parts thereof A device for processing slaughtered animals or parts thereof, having a first station and a second station, comprises a conveyor which extends between the first station and the second station. The conveyor comprises at least one slot which is designed to carry and su... | 02/14/2006 |
| 6912434 | Method and device for processing slaughter products A processing of a first slaughter product to form a second slaughter product comprises: providing one or more processing stations, a parameter of a processing to be carried out in the processing stations being adjustable; collecting and storing data indicating the a... | 06/28/2005 |
| 6908656 | Orthogonally ambiguous carpet tile Carpet tiles having patterns and color schemes that obviate the need to orient the tiles relative to each other. The tiles exhibit orthogonal ambiguity, meaning that they may be laid in any side-by-side orientation with respect to adjacent tiles without looking out ... | 06/21/2005 |
| 6849317 | Carpet tile with cutout section, method and apparatus for production and method of installation A carpet tile (11) and tile cutting apparatus (20) that produces a carpet tile with a removable cutout section (13) defined by discontinuous slits (19) and held in place by bridges (14). The apparatus includes a perimeter cutting a... | 02/01/2005 |
| 6841216 | Rotationally determinate, positionally ambiguous striped carpet tiles A carpet web and a method of forming a carpet web having a striped pattern and color scheme that permits carpet tiles cut from the web to be installed without regard to relative tile positions and without visibly disrupting the pattern, but rather maintaining the ap... | 01/11/2005 |