...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 |
| 7353664 | Heat pump and compressor discharge pressure controlling apparatus for the same Disclosed herein is a heat pump. The heat pump comprises a compressor, indoor and outdoor heat exchangers for condensing or evaporating refrigerant compressed by the compressor according to cooling or heating operation mode, a four-way valve for guiding the flow of ... | 04/08/2008 |
| 7353665 | Clasps, interchangeable jewelry pieces, and methods for connecting the same A clasp for releasably fastening two objects is disclosed. The clasp includes a male member and a female member. The female member includes a displaceable member that is movable between a first position and a second position. In the first position, the displaceable ... | 04/08/2008 |
| 7353666 | Method for press molding a glass optical element A molding apparatus for molding a press-molded product by heating and softening a material and press-molding the material into a predetermined shape by the use of a mold, includes a pair of dies which form the mold, each of which comprises a molding surface facing w... | 04/08/2008 |
| 7353667 | Neck ring guide for glassware making machine A neck ring guide for aligning neck ring sections in a glassware forming machine has a center body and a pair of spaced parallel runners coupled to the center body for receipt in guide slots in the neck ring sections. Keepers on the outboard sides of the runners ret... | 04/08/2008 |
| 7353668 | Yarn feeder of yarn feeding device for weft knitting machine [PROBLEMS] To provide a yarn feeder in the yarn feeding device of a weft knitting machine in which a fabric having uniform stitches can be produced with high productivity without increasing the size of the yarn feeder. [MEANS FOR SOLVING PROBLEMS] In a switching mec... | 04/08/2008 |
| 7353669 | Air bag fabric and inflatable elements formed therefrom An air bag substrate fabric utilizing a tying yarn knitting arrangement wherein a portion of the tying yarns are threaded to engage needles so as to form two stitches with one on either side of the inlay warp yarn at rows of stitch formation. The neighboring stitche... | 04/08/2008 |
| 7353670 | Tile sponge washing and conditioning apparatus A tile sponge washing and conditioning apparatus is disclosed for washing in water a sponge used during a ceramic tile laying operation. The apparatus includes a frame for disposition thereof within the water. The frame includes a first wall and a second wall which ... | 04/08/2008 |
| 7353671 | Adjustable width coupler latch lock An adjustable coupler lock for locking a trailer hitch such that a trailer cannot be removed from a vehicle. The coupler lock comprises a lock body with a locking mechanism and a locking plate, and also comprises a shaft having a narrow and a flange end, and also ha... | 04/08/2008 |
| 7353672 | Lock assembly A lock assembly includes a plurality of lock devices and a locking chain. Each lock device includes: a lock housing unit including upper and lower lock housings respectively formed with a rod hole and a jaw hole; a jaw actuating unit including a jaw actuator operabl... | 04/08/2008 |
| 7353673 | Locking device and method for unlocking the locking device A locking device and a method for unlocking the locking device are provided. The locking device includes a stationary plug having a first aperture extending therein configured to receive a key. The stationary plug further includes an outer surface, an inner surface ... | 04/08/2008 |
| 7353674 | Door lock with controllable handle operation A door lock with controllable handle operation including a bolt (3), a follower (5) for moving the bolt and an operation axis (4), on both ends of which an actuator can be installed for operating the follower (5), whereby force transmissi... | 04/08/2008 |
| 7353675 | Lock barrel and a driving part for the same A lock barrel and a driving part for the same comprises a plurality of key channels for the insertion o the driving part (key) and a plurality of transverse gateways for housing movable parts, which will bulge into the key channels for making the channels effectivel... | 04/08/2008 |
| 7353676 | Method and apparatus for precision rolling of rotationally symmetrical components An apparatus (1) and a method serve for precision rolling of a surface area (2) of a rotationally symmetrical component (3), especially a screw. The apparatus (1) includes at least two spaced apart rolling tools (4, 5), a measuring... | 04/08/2008 |
| 7353677 | Automated machine setup with modular tooling Apparatus and a method for establishing setup parameters for use in a machine. In one embodiment a tooling component is removably mountable to a host machine. The tooling component includes a memory that contains information defining setup parameters for the host ma... | 04/08/2008 |
| 7353679 | Coldforming machine There is disclosed a coldforming machine in which the rolling racks are preferably arranged in vertical direction and are adjustable via a feed means during the rolling operation in radial direction with respect to the workpiece to be formed. ... | 04/08/2008 |
| 7353680 | Universal compression spring former The compression spring former disclosed by the present invention contains an external diameter mechanism, spacing mechanism, wire-feeding mechanism, cutting mechanism, length-detecting mechanism, sorting mechanism, and microcomputer control mechanism. Within the wor... | 04/08/2008 |
| 7353681 | Roll embossing of discrete features A cold rolling process for impressing a pattern on a surface of a sheet metal article involves passing the sheet article through a pair of rolls and engaging a patterning feature with isolated areas of a surface of the sheet article, at a localized pressure to plast... | 04/08/2008 |
| 7353682 | Pipe flaring tool A pipe flaring apparatus for use in flaring the end of a pipe preferably comprises a housing, a three jaw clamping chuck (3) in the housing which clamps the pipe (11) as the chuck (3) is propelled along an inclined surface (10a) of... | 04/08/2008 |
| 7353683 | Surgical needle manufacturing process A process for manufacturing a surgical needle incorporates at least one pressing operation which, preferably, in conjunction with a trimming and/or etching process, ultimately forms the sharpened needle end. The grinding operation in the preferred process does not p... | 04/08/2008 |
| 7353684 | Method and apparatus of manufacturing drum An apparatus and method of manufacturing a drum, for use in an appliance such as a dryer, that prevents noise and vibration during operation. The method involves forming a cylindrical drum; reducing a diameter at both ends of the drum; forming beads in a central par... | 04/08/2008 |
| 7353685 | Apparatus for punching, stamping and/or shaping flat elements A device for punching, stamping and/or shaping flat elements (29) includes a base body (1) with a table (18) and support (26) for the flat element (29), and a base plate (17), which supports a punch (24), and which is... | 04/08/2008 |
| 7353686 | Press A press comprises a servo motor (6), a ball screw (9), and a roller guide (11) in which machining accuracy is enhanced while reducing the overall size and weight, noise and vibration, and power consumption of the press. ... | 04/08/2008 |
| 7353687 | Reference leak A reference leak includes a leak layer formed of one of a metallic material, a glass material, and a ceramic material. The metallic material is selected from the group consisting of copper, nickel, and molybdenum. The leak layer comprises a number of substantially p... | 04/08/2008 |
| 7353688 | Methods and systems for determining a position of a probe The present methods and systems include aligning at least two sensors with one or more known locations, selecting at least two of the at least two sensors, electrically driving the probe, based on signals received by the selected sensors, determining whether the pro... | 04/08/2008 |
| 7353689 | Liquid separator for a gas analyzer and method for separating a liquid component from gas Liquid separator for a gas analyzer and method for separating a liquid component from gas. The liquid separator comprises an input passage having an input end and an output end, an output passage having an input end and an output end, a wall formed of a gas permeabl... | 04/08/2008 |
| 7353690 | Atmospheric refractivity profiling apparatus and methods Apparatus and methods for characterizing atmospheric refractivity and its evolution in time and space utilizing passive radiation emission measurement devices are disclosed. Based on an instrument such as a passive microwave radiometer, ancillary meteorological meas... | 04/08/2008 |
| 7353691 | High performance generator stator leak monitoring system A method of measuring hydrogen leakage from a generator core into generator coolant water flowing through the generator stator windings comprising the steps of: providing a core hydrogen gas environment within the generator; flowing coolant water in a flowpath throu... | 04/08/2008 |
| 7353692 | Leakage tester An inexpensive and compact leakage tester is provided, which performs a leakage determination on a measurement object automatically and with high accuracy. The leakage tester of the present invention includes; a pressurizing device for pressurizing the inside of a m... | 04/08/2008 |
| 7353693 | Evaluation apparatus for scientific phenomena and evaluation method for scientific phenomena using the same In the evaluation apparatus of the present invention, there are formed a plurality of minute channels having a cross-sectional area of not more than 1 mm2, one end of each of these channels joins in at a single meeting point and, when liquids are put into... | 04/08/2008 |
| 7353694 | Rheometer A rheometer and method of making rheological measurements are disclosed, in which a sample is supported between plates and an alternating movement is applied by a driver, support rod and plate. Force and displacement measurements are taken and the property determine... | 04/08/2008 |
| 7353695 | Methods and apparatus for determining properties of a fluid A method and system for determining properties of a fluid involves interacting the fluid with a standing wave in a first state to establish the standing wave in a second state, analyzing an electric signal associated with the standing wave to determine a characteris... | 04/08/2008 |
| 7353696 | Apparatus for measuring methanol concentration An apparatus for measuring a methanol concentration is provided. The apparatus is located in a pipe which supplies liquid fuel to the anode of a direct liquid feed fuel cell, and may include a vertical supporting beam located in the pipe; a horizontal plate located ... | 04/08/2008 |
| 7353697 | System for mounting an engine to a frame A system for mounting an engine to a frame in a manner to permit measurement of its torque by a transducer which is isolated from loads induced by installation misalignments, frame deflections and acceleration induced forces. One embodiment of the system is compatib... | 04/08/2008 |
| 7353698 | Test stand for simulation of the exhaust flow of an internal combustion engine This invention relates to a test stand for simulation of the exhaust flow of an internal combustion engine, comprising a cylinder (36) and a base body (39) which is designed as a cylinder head and in which at least on... | 04/08/2008 |
| 7353699 | Electronic throttle control supercharging A drive system. The drive system includes an engine configured to convert chemical energy into mechanical energy, an electronically-controlled air throttle configured to regulate air delivery to the engine, a supercharger configured to selectively increase pressure ... | 04/08/2008 |
| 7353700 | Tire wear monitoring system Tire wear monitoring system, including a wearing part (110, 111) to be monitored, said wearing part (110, 111) being associated with magnetic elements (113) and magnetic field sensing means (114), for sensing an intensity of a magnetic fi... | 04/08/2008 |
| 7353701 | Assembly line for mounted units A tire assembly line including a wheel soaping work station, a tire soaping workstation, a tire and wheel assembly station, and a tire inflation station. The assembly line is formed from a plurality of modules that are interchangeable and releasably connected to one... | 04/08/2008 |
| 7353702 | Tire valve having indicating device A valve for a tire with a simple structure and a low cost is easily made for monitoring the pressure of the tire through an indicator. ... | 04/08/2008 |
| 7353703 | Method for detecting the fuel quantity during the refueling of a motor vehicle In an example method for detecting the fuel quantity during the refueling of a motor vehicle, the volume of the fuel conducted to the motor vehicle during the refueling operation and the temperature of the fuel are measured. The measured volume is corrected to prede... | 04/08/2008 |
| 7353704 | Storage tank external gauge system Provided herein are devices useful for guiding cables, wires, cords, and the like. A device according to the present invention is particularly useful for guiding a cable that is used in providing an external liquid-level gauge on an oil tank. A cable guide means acc... | 04/08/2008 |