...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 |
| 6941227 | Frequency-dependent processing and interpretation (FDPI) of seismic data for identifying, imaging and monitoring fluid-saturated underground reservoirs A method for identifying, imaging and monitoring dry or fluid-saturated underground reservoirs using seismic waves reflected from target porous or fractured layers is set forth. Seismic imaging the porous or fractured layer occurs by low pass filtering of the window... | 09/06/2005 |
| 6908418 | Door mounted deadman for exercise devices A door-mounted strap extends around a door in the vertical direction, typically being placed medially of the door. On the deadman side of the door, the strap is continuous as it faces the exerciser. On a face of the door, away from the exerciser, the strap has a ten... | 06/21/2005 |
| 6897038 | Method of laser capture microdissection from a sample utilizing short pulse length Laser capture microdissection occurs where the transfer polymer film is placed on a substrate overlying visualized and selected cellular material from a sample for extraction. The transfer polymer film is focally activated (melted) with a pulse brief enough to allow... | 05/24/2005 |
| 6867038 | Isolation of cellular material under microscopic visualization A method of microdissection which involves forming an image field of cells of the tissue sample utilizing a microscope, identifying at least one zone of cells of interest from the image field of cells which at least one zone of cells of interest includes different t... | 03/15/2005 |
| 6851490 | Apparatus and process for drilling casing with environmentally contained mud annulus A large diameter bore—in the range of 30 inches or more—is made through a geologic formation, such as the active surf zone and into the maritime zone. The drill head is provided with a mud powered motor (typically of the Moyno variety) which drives a hydraulic p... | 02/08/2005 |
| 6832141 | Module for monitoring vehicle operation through onboard diagnostic port An onboard diagnostic memory module is configured to plug into the OBD II port and has a real-time clock and power supply, a microprocessor powered from a standard OBD II port, microprocessor operating firmware, and an attached memory (7 MB). In operation, the onboa... | 12/14/2004 |
| 6831934 | Cladding pumped fiber laser A double cladding fiber includes an inner core doped with active species, an inner cladding disposed adjacent said inner core for receiving pumping energy, minimizing local modes in said inner cladding, and transferring said pumping energy to the core. An outer clad... | 12/14/2004 |
| 6816513 | High power high efficiency cladding pumping fiber laser In the present invention, methods and apparatus for making efficient cladding pumping fiber lasers is disclosed. In particular, new fiber cladding geometry and method of construct fiber lasers and amplifiers using the laser fibers of the current invention are disclo... | 11/09/2004 |
| 6813859 | Tie down for plastic grape canopy A protective polyethylene canopy, in the order of 100 to 110 inches in width and approximately 1.3 mils thick, is placed over trellised grapevines and fastened by the disclosed tie downs at the respective canopy sides. To form the tie downs, the side edges of the ca... | 11/09/2004 |
| D498181 | Tubular frame for motor propelled bike | 11/09/2004 |
| 6796706 | Food mixer A food mixer 10 having a turntable 22 that receives a bowl 23. Projecting into a bowl 23 are beaters 24 that are driven by means of a motor 13. The turntable 22 is driven by means of a motor 25. A common speed ... | 09/28/2004 |
| 6795260 | Optical unit and its use An optical unit (10) comprising a plurality of optical elements, a receiving structure (12) with a plurality of element supports (40, 41) for receiving the optical elements. The element supports (40, 41) are in the form of a plate or shel... | 09/21/2004 |
| 6786724 | Mold compound ejection tip for dentistry An intra-oral molding compound ejection tip is provided to provide a substantially uniform expanding solid angle of the mixed molding compound upon molding compound ejection. A prior art intra-oral tip typically includes an ejection orifice defined about an axis par... | 09/07/2004 |
| 6783734 | Convex geometry adhesive film system for laser capture microdissection A tissue sample is conventionally visualized in a microscope. A selectively activated convex surface is provided, preferably at the distal end of a rod. This selectively activated convex surface when activated, typically with a laser through an optic light path in t... | 08/31/2004 |
| 6769801 | Static mixer with precision cast elements The static mixer contains precision cast elements (1) which are arranged along a central axis (10) and which in each case have a reinforcement region (4) at their circumference which extends over the entire circumference. These cast elements ( | 08/03/2004 |
| 6746414 | Joint for a knee brace incorporating a locking mechanism An orthopaedic knee brace comprising an upper arm and a lower arm securable to a wearer's leg above and below the knee joint. There is a pivotable joint at the ends of the arms to allow flexing of the knee by pivoting movement of the arms. A locking mechanism is pro... | 06/08/2004 |
| 6743601 | Non-contact laser capture microdissection An apparatus and process for the micro juxtaposition is set forth where a selectively activatable surface is maintained spaced apart from the tissue sample and juxtaposed to the tissue sample by activation. In the typical case, activation occurs by laser radiation w... | 06/01/2004 |
| 6738552 | Pressed capillary optics A capillary optic produced by impression has a mold with an external profile figured for radiation transmission along an axis used as a mandrel for impression. The mold often takes the form of a precisely etched wire. At least one soft plate is used for impressing t... | 05/18/2004 |
| 6735779 | Visored hat construction A lightweight visor of semi-rigid plastic mesh material is sized to provide filtered sun ray incidence with minimum wind resistance to and through to the head of the wearer. The visor is crescent-shaped with the outer and larger curvature of the crescent forming the... | 05/18/2004 |
| 6733171 | Magnetic stirring apparatus and an agitating device The magnetic stirring apparatus (1) comprises an agitator (1a), at least one permanent magnet (1d, 1e) and a float body (1f), which are connected to one another. ... | 05/11/2004 |
| 6727608 | Claw-pole type stepping motor A claw-pole type stepping motor which includes a stator in which coils are arranged in association with a pair of inner and outer yokes and a pair of pole tooth sections thereby forming a magnetic circuit; and a rotor magnet which is rotatably disposed opposite to t... | 04/27/2004 |
| 6720191 | Mechanical handling systems for laser capture microdissection A method and apparatus of gathering by LCM identified cellular material from randorn locations on a tissue sample to designated locations on a transporting substrate enables convenient further processing. A transporting substrate has an identified mapped location fo... | 04/13/2004 |
| 6715260 | Method and apparatus for bag loading and dispensing A method and apparatus for securing, loading and singularly dispensing bags in a bag bundle from a dispensing hook includes a bag bundle formed from a plurality of stacked bags. Each bag has apertures are defined in the front panel and the rear panel adjacent the op... | 04/06/2004 |
| 6704375 | Device for the homodyne reception of optically phase-keyed signals The device for the homodyne reception of optical phase-keyed signals comprises a heterodyne receiver (101, 102), a data discriminator (20), a frequency acquisition circuit (80) and a local oscillator laser (70). In addition, the device has a window discri... | 03/09/2004 |
| 6699721 | Surface coatings for hot-melt adhesive film A low temperature melt film such as EVA is prepared for laser capture microdissection by having a thin specimen non-adhering coating in the range of 0.1% to 10% of the total film thickness placed on the sample exposed side of the film. When the film is br... | 03/02/2004 |
| 6694031 | Optical microphone/sensors The invention provides a head for an optical microphone/sensor, including first and second light guides; the first light guide being coupled at an input end to a source of light and having an output end portion for transmitting light onto a membrane; the ... | 02/17/2004 |
| 6682651 | Barrel type fish and/or particulate screen device A barrel type fish and/or particulate screen includes mesh stretched over a supporting cylindrical shell having closed ends. The closed interior opens to a fluid withdrawal conduit, which is connected to an outlet. An inner, substantially conical withdraw... | 01/27/2004 |
| 6677726 | Supporting charger for rechargeable appliances A rechargeable electric toothbrush 10 is received within a charger 11. The toothbrush 10 includes an outer body 12 that receives a toothbrush assembly 13. Within the body 12, there is located a secondary electric circuit 22 including a secondary coil 23. ... | 01/13/2004 |
| 6668959 | Scooter with integral frame mounted shock absorber A motor powered scooter for supporting a standing rider has a front steered wheel, a rear driven wheel, and a platform therebetween that supports a standing rider on the scooter. A shock absorber having first and second relatively moving ends for energy a... | 12/30/2003 |
| 6640920 | Low emission exhaust system for a motorized scooter A catalytic converter is especially adapted for placement to a motorized scooter. The scooter includes a front steered wheel, a rear driven wheel, and a structural tube extending between the wheels. A motor driving the rear driven wheel has an exhaust emi... | 11/04/2003 |
| 6634224 | Method for the determination of the pressure in and/or of the through-flow through a pump In the method for the determination of the pressure (p) in and/or of the through-flow (Q) of a liquid through a pump having at least one magnetic bearing for the axial journaling of the pump rotor (1), axial forces act on the rotor (1) of the pump during ... | 10/21/2003 |
| 6630670 | Thermal imaging system A thermal imaging system comprising a camera (11), a control device (12) which is operable to control movement of the camera (11) and operation of the camera shutter and a computer (13) which includes thermal image processing software which allows manipul... | 10/07/2003 |
| 6616583 | Exercise board having resilient rocker-mounting ends An exercise board for accommodating the foot or feet of a balancing user during exercise movement has an elongated flat platform with opposite, typically upturned ends, similar to a skateboard. The board defines an upper facing side dimensioned to receive... | 09/09/2003 |
| 6616306 | Linear moving pattern for ellipsoidal type stage light A gobo having linear motion is inserted to the narrow iris slot of a conventional ellipsoidal stage light. The linear moving pattern includes a housing, a drive roller and a motor, a return roller, and an endless pattern loop. The housing has a narrowed e... | 09/09/2003 |
| 6603105 | Smart optical microphone/sensor The invention provides a smart optical microphone/sensor for sensing distances to a membrane or to a light-reflecting surface, including a source of light for illuminating the membrane or light-reflecting surface; a photodetector for receiving light refle... | 08/05/2003 |
| 6601129 | Interface device between PC and keyboard enabling switching of data An interface device for placement between a PC and a peripheral device, such as a keyboard or mouse, enables a flow of digital data into and out of a communicating personal digital assistant (PDA). The interface device includes a central processing unit h... | 07/29/2003 |
| 6595682 | Mixing element for a flange transition in a pipeline The mixing element (2) is provided for a flange transition (10) in a pipeline (1) and can be mounted between two flanges (11, 12) of the pipeline. It comprises a mixing-active structure (25) which is formed by one or two vanes (25a, 25b) within a ring (20... | 07/22/2003 |
| 6588082 | Large volume twin shaft compulsory mixer A twin shaft "compulsory mixer" having a capacity in the range of twelve cubic yards has a static mixing chamber bottom defined from two horizontally disposed and interfering cylindrical shapes. Two centrally disposed elongate rectilinear discharge gates ... | 07/08/2003 |
| 6589377 | Manufacture of sections of fiber-plastic compound materials The method for the manufacture of sections of fiber-plastic compound materials is carried out by means of at least one draw nozzle (10). In this nozzle, fibers (41) which are impregnated with flowable plastic (42) are formed under pressure to a product (4... | 07/08/2003 |
| 6589395 | Distillation plant with a column and a heat pump The distillation plant comprises a column (1) and a heat pump (4, 5) which operates between a sump vaporizer (3) and an exhaust vapor compressor (2) of the column. The heat pump is substitutable by devices (6, 7) which can be switched to the sump vaporize... | 07/08/2003 |