...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 |
| 6923584 | Image forming apparatus A printer includes a front panel having an approximately flat main surface which serves as one of the surfaces of the external housing of the printer, a feed-tray attachment hole for detachably attaching a feed tray which stores a paper sheet to the main body of the... | 08/02/2005 |
| 6726384 | Paper controlled clutch for a paper exit system in a printer A print medium exit system in a printer includes a kicker device ejecting a sheet of print medium out of the printer. A clutch mechanism prevents actuation of the kicker device when the clutch mechanism is engaged by the sheet of print medium. ... | 04/27/2004 |
| 6695503 | Print media feed system for an imaging apparatus A print media feed system for advancing a sheet of print media having a leading edge and a trailing edge in a sheet feed direction through a print zone in an imaging apparatus includes a rotating support positioned downstream of an exit roller in relation... | 02/24/2004 |
| 6626594 | Printing machine with a latch for unlocking the cover The invention concerns a machine (1) for printing a substrate (5) taken from a supply (50), including a frame (2), a cover (3) movable relative to the frame, said frame (2) receiving the supply, and means (4) for printing the substrate (5) including in pa... | 09/30/2003 |
| 6505981 | Printer with label separator Setting plain paper in a printer which can print on plain paper and a label paper is facilitated using a printer capable of printing a recording medium including a base sheet and at least one label sheet detachably adhered thereon. The printer includes a ... | 01/14/2003 |
| 6379063 | Programmable multiple staple positioning in post-processing of sheets from sheet handling equipment A discharge tray for a sheet material handling device such as a printer includes multiple stapler mechanisms. The multiple stapler mechanisms are positioned along an edge of a discharge tray so that, by selectively engaging the stapler mechanisms, a desir... | 04/30/2002 |
| 5435657 | Label printer and tape and ink ribbon cartridge for use therein A thermal printing device comprises a label tape printer and tape and ink ribbon cartridge for horizontal insertion into the printer. The cartridge housing includes an upper cover and a base which are joined by telescoping hubs and posts. The cartridge co... | 07/25/1995 |
| 4723133 | Card ejecting apparatus A card ejecting apparatus for a thermal printer includes a rotatable drum having a clamp which holds a card when the drum is rotated in a first printing direction and releases the card when the drum is rotated in the opposite ejecting direction, a spring ... | 02/02/1988 |
| 4489651 | Mailing machine having an envelope stripping device This invention relates to a stand-alone electronic mailing machine. The entire drive mechanism, setting mechanism, and control devices as well as the postage metering mechanisms are all contained in one housing so that there is no need for a separate base... | 12/25/1984 |
| 4143981 | Unit document feeding mechanism Disclosed is a means for feeding unit documents, such as sheets, envelopes, pages, cards, and the like to an apparatus for processing. Means is provided for feeding the documents to and removing them from the operating apparatus at a relatively high rate ... | 03/13/1979 |
| 4084805 | Sheet handling device particularly useful as ledger feeder and stacker for accounting machines Sheet handling device useful for handling sheets to be processed by data processing apparatus, such as a ledger accounting machine. The device includes a main hopper compartment into which documents to be processed are manually deposited, an auxiliary hop... | 04/18/1978 |