...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 |
| 7604532 | Whip as part of a slaughter line A whip, particularly a double whip (1), as part of a slaughter line includes at least a whip section (A) and a head section (B) which is in contact with a machine shaft. The whip section (A) is made of a soft polymeric material while the head section (B) is m... | 10/20/2009 |
| 7261628 | Dual operation tripe washing and refining machine A tripe washing and refining apparatus (10) includes a base (20), a vessel (14), and a motor (16). The vessel (14) includes a selectively reversible rotatable disc (30) and two baffles (32,34) extending from an annula... | 08/28/2007 |
| 7195553 | Grinding module A grinding module for a rotating grinding brush includes an elongate body part, at least one abrasive cloth extending from the body part, and a plurality of bristles projecting from the body part essentially in the same direction as the abrasive cloth, the abrasive ... | 03/27/2007 |
| 7121941 | Finger plucker lock A resilient rubber finger and a locking mechanism therefore for use in poultry processing plants for the plucking of feathers off poultry is provided. The rubber-plucking finger is comprised of an oversized base without an annular recess, and a tapered furrowed shan... | 10/17/2006 |
| 7051396 | Vehicle cleaning element A vehicle cleaning element of a substantially flat configuration having a first cleaning surface provided by a portion of the flat surface and a second cleaning surface provided by radially projecting prongs or tines for reaching into and pulling out dirt and debris... | 05/30/2006 |
| 5569066 | Device as part of a slaughtering line The invention relates to a device as part of a slaughtering line, especially for slaughtering hogs, consisting of a depilation beater (1) made of elastomaric material and having a baffle stool (3); a screw-on zone made of metal; a stop, against which the ... | 10/29/1996 |
| 5259811 | Poultry-handling assembly A poultry-handling assembly is provided which includes a pair of rotors arranged side-by-side for rotation about a vertical or predominantly vertical axis. Each rotor includes a central core upon which are arranged groups of guide elements spaced apart ar... | 11/09/1993 |
| 4900292 | Rotor assemblies A rotor assembly for use in a poultry harvester, comprising first and second rotors arranged side by side about a center line of the assembly for rotation about vertical or predominantly vertical axes, a third rotor equispaced from the first and second ro... | 02/13/1990 |
| 4873747 | Apparatus and method for mounting a resilient finger to a poultry plucking apparatus or the like A resilient finger for use in connection with a poultry plucking apparatus or the like is provided with a head portion capable of being pushed through an opening provided in a movable memer associated with the apparatus. The head portion is provided with ... | 10/17/1989 |
| 4811458 | Plucking device Plucking device with two elongated, cylindrical, plucking elements positioned at some distance from each other, to be rotated in opposite directions and mounted along a conveyor track for slaughtered poultry said elements being provided with helical tooth... | 03/14/1989 |
| 4799293 | Quick mount resilient finger for poultry plucking apparatus or the like A resilient finger for use in connection with a poultry plucking apparatus or the like is provided with a head portion capable of being pushed through an opening provided in a movable member associated with the apparatus. The head portion is provided with... | 01/24/1989 |
| 4376325 | Surface cleaning device for carcasses A rotatable surface cleaning device is employed for removing undesirable offals from the muscles of carcasses and/or hair and bristles from the rind thereof. The device has scraper means along its periphery, and the outer ends of the scraper means are mov... | 03/15/1983 |
| 4330903 | Feather plucking machine A machine for plucking feathers from game birds, such as ducks, may be made in a home workshop from readily available components. A housing is assembled from pieces of plywood and has a base, sides and a top. A square block is drilled from a shaft which i... | 05/25/1982 |
| 4292709 | Picking element for a poultry picking apparatus A picking element for a poultry picking apparatus comprises a beaker-shaped support whose casing surface carrying picking fingers is a truncated conical surface and whose end face is situated substantially transversely to the axis of rotation, there being... | 10/06/1981 |
| 4282632 | Poultry pinning and de-hairing machine Equipment for pinning and de-hairing poultry by free form inflect engagement therewith of a plurality of flexible fingers; elongated columnar members for supporting the flexible fingers; and a machine for rotatably supporting the elongated columnar member... | 08/11/1981 |
| 4175302 | Sealed feather picking unit A rotary picking unit has its drive shaft journaled by bearings that must be sealed against exposure to moisture and the escape of lubricant. A housing which contains the bearings is fitted at its open end with an annular seal that is disposed outwardly a... | 11/27/1979 |
| 4174551 | Feather plucking device An improved feather plucking device of the type having a plurality of soft rubber projections are arranged about the peripheral surface of a resilient drum. The drum is securely attached to a threaded shaft for rotation therewith by a pair of opposing was... | 11/20/1979 |
| 3943599 | Method and apparatus for seating poultry feather plucking fingers A method is disclosed for mounting a resilient poultry feather plucking finger to a rigid finger support with a peripheral groove in a head portion of the finger seated snugly within an aperture in the finger support and with an elongation portion of the ... | 03/16/1976 |