...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 |
| 8151561 | Multi-cylinder internal combustion engine A multi-cylinder internal combustion engine, wherein exhaust gas outlets of a first portion of the cylinders of the engine communicate with a first exhaust gas manifold section, and the exhaust gas outlets of the remaining cylinders communicate with a second exhaust... | 04/10/2012 |
| 8147119 | Convenience nectar mixing and storage devices The Convenience Nectar Mixing and Storage Device consists of a container that is divided proportionately to allow for the precise measuring of the recommended sugar to water ratios used for nectar type bird and butterfly feeders. The device is adapted for supporting... | 04/03/2012 |
| 8132646 | Exhaust gas muffler An exhaust gas muffler for an internal combustion engine, especially the engine of a manually-guided implement such as a power saw, a cut-off machine, or the like. The muffler has a housing having an inlet for exhaust gases and an outlet out of the housing. The hous... | 03/13/2012 |
| 8122757 | Propellant ignition testing apparatus having a compressively sealable chamber A propellant ignition testing apparatus having a compressively sealable chamber. A fixed end plate assembly is fixedly mounted on a support structure. A test chamber assembly having a combustion chamber for accommodating propellant is provided, and an initiator igni... | 02/28/2012 |
| 8109563 | Safety seat having a vertically acting, impact-dampening suspension A safety seat for land vehicles, aircraft and watercraft, including a sitting portion secured to two vertical support straps attached to a vehicle and disposed in the vicinity of the rear edge of the sitting portion. Each support strap is a strap sling stretched bet... | 02/07/2012 |
| 8105291 | Device for storing and administering active substances A device for storing and administering active substances, including a plurality of reservoirs for respectively accommodating at least one active substance. The reservoirs are disposed in a radial manner with an end face facing the direction of the center of the devi... | 01/31/2012 |
| 8100234 | Manually guided implement and method of producing a brake mechanism of a manually guided implement A manually guided implement having a tool and a brake mechanism for the tool. The brake mechanism includes a brake band that is looped about a brake drum. The brake band and the brake drum form abrasion partners that cooperate with one another during a braking proce... | 01/24/2012 |
| 8079455 | Escalator or moving walkway An escalator or moving walkway having a frame, to which rails for chain rollers and rails for idling rollers are fixedly mounted, in particular with the aid of side panels, the escalator or moving walkway further comprising a turn-around area for the chains thereof ... | 12/20/2011 |
| 8065946 | Composite armor element and effective body element A composite armor element for protection against projectiles. At least one layer of effective bodies is disposed in rows next to one another in the composite armor element, the effective bodies being embedded in a matrix material. The effective bodies of one row are... | 11/29/2011 |
| 8047129 | Apparatus for disinfecting seeds using hot water An apparatus for disinfecting seeds using hot water. The apparatus includes a disinfection container for holding water. A hopper feeds seeds into the disinfection container. A heater heats the water in the disinfection container. A temperature sensor detects a tempe... | 11/01/2011 |
| 8042754 | Laboratory vibration grinding mill having inclined grinding bowls A laboratory vibration grinding mill comprising a circular oscillating drive that operates in at least two dimensions, at least one support, and a respective elongated grinding bowl held in each support. The grinding bowl has a filling of grinding bodies and is prov... | 10/25/2011 |
| 8020491 | Method and apparatus for defending against airborne ammunition A method and apparatus for defending against airborne assault ammunition. The assault ammunition is located with at least one position-locating device. The flight path of the assault ammunition is iteratively calculated using the determined ballistic coefficient of ... | 09/20/2011 |
| 8011325 | Floatable pet toy A floatable pet toy comprising a hollow outer member, a sealed buoyant flotation bladder, and a rope section. The hollow outer member is made of rubber or polymeric material and has an inner cavity. The flotation bladder is disposed in the inner cavity of the outer ... | 09/06/2011 |
| 7984609 | Exhaust gas post treatment system An exhaust gas post treatment system for nitrogen oxide and particle reduction of internal combustion engines operated with excess air. An oxidation catalytic converter is disposed in the exhaust gas stream of the engine for converting at least a portion of the nitr... | 07/26/2011 |
| 7971519 | Apparatus for hydraulically adjusting the blades of an impeller of an axial-flow fan An apparatus for hydraulically adjusting the blades of an impeller of an axial-flow fan, comprising an adjustment cylinder that on both sides of a piston displaceably disposed in the cylinder has a first chamber and a second chamber respectively provided with a conn... | 07/05/2011 |
| 7957794 | System and method for transducing, sensing, or affecting vaginal or body conditions, and/or stimulating perineal musculature and nerves using 2-way wireless communications A system for sensing vaginal conditions or for affecting vaginal or body conditions in a mammal. The system includes a portable probe unit and a separate controller unit, both of which include two-way communication devices to both transmit signals to, and receive si... | 06/07/2011 |
| 7954842 | Airbag restraint device for occupants of a vehicle An airbag restraint device for occupants of a vehicle, and including an airbag system having an airbag module with an inflatable airbag. A cover at least partially covers the airbag and has a tear seam via which the airbag, upon inflation, can expand outwardly. A fo... | 06/07/2011 |
| 7954396 | Rack and pinion steering gear with automatic adjustment of the thrust element A rack and pinion steering gear comprising a thrust element disposed in a housing for pressing a rack and pinion against one another. One side of the thrust element is supported against the rack, and another side is supported against a wedge-like part formed of two ... | 06/07/2011 |
| 7947364 | Energy-attenuation structure An energy-attenuation structure comprising a core layer of cellular material. Substantially most of the cells of the cellular material are open cells, with those cells disposed in the central portion of the core layer being more open than are those cells disposed in... | 05/24/2011 |
| 7938601 | Use of a distributor or diffuser in the form of a thin-walled, air-permeable heat-reactive layer for machining a workpiece In the use of a distributor or diffuser in the form of a thin-walled, completely or partially air-permeable, heat-reactive layer for drilling or milling machining of a workpiece with a tool, a vacuum, surface tension is produced, which is large enough to fix the pos... | 05/10/2011 |
| 7937933 | Exhaust gas post treatment system Exhaust gas post treatment system for nitrogen oxide and particle reduction of an internal combustion engines operated with excess air. An oxidation catalytic converter is disposed in the exhaust gas stream of the engine for converting at least a portion of the nitr... | 05/10/2011 |
| 7930982 | Support for embroidery film A support for a support material that is to be embroidered, comprising a strip-shaped support that in a conveying direction thereof and/or transversely to the conveying direction is provided with a plurality of window-like openings for passage of an embroidery needl... | 04/26/2011 |
| 7922052 | Carrying strap arrangement for supporting stretchers in land vehicles, aircraft and watercraft A carrying strap arrangement for use in supporting stretchers in land vehicles, aircraft, or watercraft. A carrying strap is attached to a vehicle ceiling and floor by fittings disposed at ends of the carrying strap. At least one support strap is disposed on the car... | 04/12/2011 |
| 7900969 | Connector between a reaction pipe and a cooling pipe and method for connecting a reaction pipe to a cooling pipe Connector between a reaction pipe and a cooling pipe and method for connecting a reaction pipe to a cooling pipe. The cooling pipe is a double pipe having an inner pipe, disposed in the extension of the reaction pipe, and an outer pipe that surrounds the inner pipe ... | 03/08/2011 |
| 7896612 | Blower unit and portable blower A blower unit for a portable blower, having a drive shaft that is rotatably driven by a drive motor. Disposed in the blower unit is an axial fan that is provided with at least one fan wheel driven by the drive shaft and at least guide wheel fixedly disposed in the h... | 03/01/2011 |
| 7896441 | Vehicle seat A vehicle seat having a seat frame that in its rear region is adapted to be releasably arrested on structural elements by a left arresting device and a right arresting device, which are releasable separately relative to one another, preferably via different displace... | 03/01/2011 |
| 7878101 | Weapon storage and loading system with rocket launcher and ammunition compartment for storing rocket containers A weapon system, especially for a ship, having a rocket launcher and an ammunition compartment for storing rocket containers designed to each accommodate at least one rocket. Disposed in the ammunition compartment is a guide mechanism on which at least two ammunitio... | 02/01/2011 |
| 7874801 | Device for measuring the displacement travel of a hydraulic displacement mechanism A device for measuring the displacement travel of a hydraulic displacement mechanism for blades of an impeller of an axial-flow fan, wherein the displacement mechanism includes as components a displacement cylinder and a piston rod having a piston, one of the compon... | 01/25/2011 |
| 7856809 | Exhaust gas post treatment system An exhaust gas post treatment system for nitrogen oxide and particle reduction of internal combustion engines operated with excess air, comprising a particle filter disposed in the exhaust gas stream of the internal combustion engine. The particle filter is a surfac... | 12/28/2010 |
| 7850934 | Particle separator and method for removing particles from an exhaust gas stream of an internal combustion engine A particle separator and method for removing particles from an exhaust gas stream of an internal combustion engine. Differing flow regions having different flow conditions are formed in the particle separator. The differing flow regions are configured such that esse... | 12/14/2010 |
| 7849882 | Double plug head for plugging pipe A double plug head for plugging a pipe. The double plug head includes a primary rubber packing, a roller support, a tube support and a rubber tube. The primary rubber packing is provided on a mounting plate of a plugging machine. The roller support is provided with ... | 12/14/2010 |
| 7849782 | Large-caliber gun integrated into a military ship A large-caliber gun integrated into a military ship and mounted with the turret and the weapons system of an armored howitzer. Disposed below the turret body portion is a shell magazine in which is installed a shell transporter that grasps the shells and supplies th... | 12/14/2010 |
| 7842905 | Method and device for the thermal treatment of substrates This invention relates to a method and a device for the thermal treatment of substrates in which the substrates are held in contact with or a small distance away from a heating plate, which is heated by a plurality of separately controllable heating elements on the ... | 11/30/2010 |
| D627123 | Device for holding sacks and bags open | 11/09/2010 |
| 7820187 | Method and mixture for protecting animals against pests A mixture for application on an animal to provide barrier protection against insects, parasites, arachnids and/or other arthropods, and ectoparasites, and in general viruses, bacteria and/or other microorganisms is provided. The mixture includes a carrier or combina... | 10/26/2010 |
| 7815115 | Method of determining a fire guidance solution A method of determining a firing guidance solution when relative movement exists between a projectile-firing weapon and a target object that is to be hit, including the steps of adjusting the weapon in azimuth angle and elevation angle, by means of a movement differ... | 10/19/2010 |
| 7814632 | Method for break separation of pieces that can be re-assembled or their starting materials A method for break separation of pieces that can be re-assembled or their starting materials achieves a break separation at a selected break surface. The method includes subjecting a piece to be subjected to break separation to a break force F3, F3 | 10/19/2010 |
| 7811830 | Photosensitizers for photodynamic therapy at infrared excitation A photosensitizer that is excitable via infrared radiation and is adapted to be used to treat a selected biological target. The photosensitizer comprises a core nanoparticle adapted to convert infrared radiation into a visible light emission, and a coating disposed ... | 10/12/2010 |
| 7806953 | Manually guided implement A manually guided implement having a tool driven by an internal combustion engine, which draws combustion air in via an air filter disposed on an air filter base. The air filter is secured to the implement via a releasable securement device that includes a first sec... | 10/05/2010 |
| 7802419 | Exhaust gas post treatment system Exhaust gas post treatment system for nitrogen oxide reduction of internal combustion engines operated with excess air. A partial exhaust gas stream is branched off upstream of an SCR catalytic converter for reducing nitrogen oxides. A metering device delivers to th... | 09/28/2010 |