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.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7216523 | Pair of pressing jaws for hydraulic or electric pressing tools, and insulating covering for a pressing jaw The invention relates to a pair of pressing jaws for hydraulic or electric pressing tools for pressing fittings onto pipes or for the press connection of electric cables, the two pressing jaws being disposed for rotation about a common axis and each pressing jaw for... | 05/15/2007 |
| 6966104 | Reinforcing bar tool and method A tool for forming a high strength reinforcing bar coupling driving self-locking wedge sleeves over each end of a contractible jaw assembly bridging the abutting ends of the bar to be joined. The sleeves are seated in collars engaged by the distal ends of arms drive... | 11/22/2005 |
| 6845645 | Swaging feedback control method and apparatus A swaging system includes a swaging assembly, a sensor, and a controller. The swaging assembly includes a movable tool, the movable tool operate to exert force on a die. The die is configured to reduce a dimension of a work piece responsive to the exerted force, the... | 01/25/2005 |
| 5865051 | Procedure and apparatus for the optimized manufacture of coil springs on automatic spring winding machines Procedure and apparatus for the optimized manufacture of coil springs on automatic spring winding machines. It is the object of the present invention to offer both a procedure and an apparatus by which even in case of fluctuating values of the wire parame... | 02/02/1999 |
| 4934169 | Method for moving a tool to exact shaping or working engagement with a strip of material having a repeated basic shape Method for moving a tool (8) relative to and into engagement with an incrementally advanced metal strip (10) having a repeated basic shape. Between the advancements, the strip (10) is held stationary, so that the tool can be engaged by a movement merely a... | 06/19/1990 |
| 4220026 | Position control method and apparatus for controlling the position of the wire discharging port of a laying head A position control system for controlling the position of the wire discharging port of a laying head to discharge a wire in a coil fashion through its revolution, compares a position reference signal which is produced depending on the running speed of a w... | 09/02/1980 |
| 4142394 | Apparatus for forming circularly bent articles from a straight profiled strip Apparatus for forming circular rims for bicycle wheels from metal profiled strip material in which first strip pieces are cut to a length corresponding to the circumferential length of the rims, curved end portions are formed on each strip piece, and each... | 03/06/1979 |
