Did You Know...
...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 |
| 6175687 | Humidifier and hollow yarn body to be used therefor A humidifier (5) includes upper and lower water tanks (7) and (8) supported by a support frame (6). In a space between the upper and lower water tank, a plurality of hollow yarn bodies (1) are arranged in communication with upper and lower water tanks. Th... | 01/16/2001 |
| 6046794 | Control device for marking device A control device for reducing a marking time in a marking device. This control device performs control operations whereby an image 20 of an area that circumscribes the entire "ABCDE" pattern of an original image is retrieved, the circumscribed area image ... | 04/04/2000 |
| 5934125 | Refuging system for emergency of transfer feeder There is provided a refuging system for transfer bars of a transfer feeder of a transfer press, in which the transfer bars are driven by a transfer bar driving mechanism including an induction type servo motor. The refuging system includes a servo control... | 08/10/1999 |
| 5899964 | Bending angle detector and straight line extracting device for use therewith and bending angle detecting position setting device In bending angle detection, a linear projected light image formed on the surface of a workpiece is photographed by a photographing device; the actual inclination angle of a specimen is stored as data in correspondence with the inclination angle and positi... | 05/04/1999 |
| 5898442 | Display control device A display control device for displaying data stored in a video memory on a flat display such as an EL or liquid crystal display on the basis of display control signals output from a CRT control device, which comprises a memory means that allows data read ... | 04/27/1999 |
| 5896163 | Laser liquid crystal marker and method for judging deterioration of liquid crystal A laser liquid crystal marker and a method of judging deterioration of the liquid crystal make it possible to maintain high printing accuracy, ascertain the proper time for replacement of liquid crystal and, further, maintain high printing accuracy even w... | 04/20/1999 |
| 5877270 | Water solvent extraction degreasing method and molded products produced therewith A water solvent extraction degreasing method capable of reducing degreasing time without consideration of abrupt decomposition/vaporization and swelling caused by heat. An organic binder is removed from a molded product that is produced by a powder materi... | 03/02/1999 |
| 5875766 | Supercharging device for a vehicle engine and method for controlling the same Disclosed is a supercharging device for a vehicle engine, for use in construction machines, etc., that has high acceleration performance, that is compactly made but provides high output, and that provides good engine braking efficiency, and a method for c... | 03/02/1999 |
| 5854379 | Thermal decomposition degreasing method and molded products thereof A low-cost thermal decomposition degreasing method capable of drastically reducing the time required for a degreasing process which involves heating, vaporization and thermal decomposition, while assuring the shape retention property of an injection molde... | 12/29/1998 |
| 5845895 | Liquid sealed rubber mount This invention relates to a liquid sealed rubber mount capable of displaying an excellent vibration isolating effect in intermediate and high frequency ranges, having a vibration isolating effect with no resonation occurring with respect to even the impac... | 12/08/1998 |
| 5844556 | Intelligent graphic operation panel and highlighting contol method Besides fixed display element information for merely displaying a fixed screen, variable display element information for variably displaying a variable display element whose display content changes, input element information representing the relationship ... | 12/01/1998 |
| 5802766 | Method and apparatus for controlling automatic opening and closing of window of driver's cab of working vehicle A method and apparatus is provided for controlling the automatic opening and closing of a window of the driver's cab of a working vehicle in which the automatic opening and closing operations and locking operation of the window are carried out smoothly by... | 09/08/1998 |
| 5793638 | Work instruction system and conveyance control system in production line An object of this invention is to provide efficient operations of a production line for producing finished products by performing working in which a variety of parts are selectively combined with one another during a plurality of processes. A semi-finishe... | 08/11/1998 |
| 5785910 | Method for manufacturing laminate-molded products and apparatus therefor The present invention is to improve a laminate molding method and a laminate-molding apparatus for manufacturing molded products that have an external appearance of excellent quality. For this purpose, according to a molding method, by which a mold clampi... | 07/28/1998 |
| 5778107 | Position recognition method A position recognition method wherein the photographic image of an object having a concavity or convexity defined therein is converted into specified feature space data; detection is performed to determine whether the specified feature space data possesse... | 07/07/1998 |
| 5769578 | Crankshaft miller and method of use thereof A crankshaft miller is constructed by providing two cutter units movably in a longitudinal direction of a work between a pair of work heads provided on a bed and supporting both ends of the work. A cutter for machining a main journal and a first resting d... | 06/23/1998 |
| 5764666 | Device for detecting malfunctions in laser devices A malfunction signal indicating that a laser device is malfunctioning is output from a misfire detector when the oscillation of a laser beam is detected by a laser oscillation detector in an event that no laser oscillation command is detected by a laser o... | 06/09/1998 |
| 5740315 | Fluid heating apparatus A fluid heating apparatus in which a heating unit (2) and a fluid supply adjusting unit (3) are accommodated in a casing in a manner separated from each other and connected through a flow-in tube (8) and a flow-out tube (9) and the fluid supply adjusting ... | 04/14/1998 |
| 5735364 | Lubricating structure for a wheel driving apparatus A lubricating structure for a wheel driving apparatus in which a wheel hub (7) is rotatably supported by a wheel mounting body (1). An output side of a hydraulic motor (31) is attached to the mounting body and is coupled to a drive shaft (6) which is enga... | 04/07/1998 |
| 5725204 | Idler shock-absorbing device for crawler belt A shock-absorbing device, suitable for use with an idler for a crawler belt, contains a spring box (10) having a flange (12) secured at one end and a bracket (13) secured at the other end, with an annular partition wall (11) extending radially inwardly fr... | 03/10/1998 |
| 5726673 | Liquid crystal display for laser marker A liquid crystal display for a laser marker for attaining a higher marking speed, characterized in that a liquid crystal display screen (10) is divided into a first zone (10a) where a sub-scanning is first performed and a second zone (10b) where a sub-sca... | 03/10/1998 |
| 5725339 | Crankshaft working method There is provided a method of working a crankshaft wherein a first cutter for simultaneously working an outer peripheral surface of a pin or journal of the crankshaft and a side surface of a counter weight disposed adjacent to the outer peripheral surface... | 03/10/1998 |
| 5714928 | System for preventing collision for vehicle A collision preventing system for a vehicle has a brake system. The system includes first preview sensor detecting an obstacle in front of the vehicle in a first distal detection zone to produce a first signal indicative of presence of the obstacle and di... | 02/03/1998 |
| 5714719 | Workload detecting system for excavating and loading apparatus A workload detecting system for an excavating and loading apparatus, in which a bucket supporting member is vertically pivoted relative to a vehicle body and a bucket is actuated to be tilted with respect to the bucket supporting member. The system includ... | 02/03/1998 |
| 5710787 | Output controller for laser device An object is to perform controlling operation always accurately to eliminate a spiking phenomenon generated in a laser device. In an output controller (6), excitation intensity data causing energies of continual pulses to be set to have a desired identica... | 01/20/1998 |
| 5707176 | Earth discharge control system for small-diameter pipe propelling machine An earth discharge control system for a small-diameter pipe propelling machine controls the excavated earth discharging operation of the small-diameter pipe propelling machine. The small-pipe propelling machine propels a small-diameter pipe (2) joined at ... | 01/13/1998 |
| 5699873 | Operation control system for traveling vehicle When a longitudinal straight traveling mode position A, an oblique traveling mode position B, a transverse traveling mode position C, or spin turning mode position D is selected by a traveling mode changeover switch 21, a signal corresponding to the selec... | 12/23/1997 |
| 5701251 | Method and system for constructing the figures of blanks in sheet metal work A blank-figure constructing method for sheet metal work, wherein a cutting passage planned to sequentially cut a plurality of desired blanks from a sheet material is determined, utilizing a multiple figure composed of the figures of the plurality of blank... | 12/23/1997 |
| 5697764 | Displacement control system for variable displacement hydraulic pump There is provided a displacement control system for a variable displacement hydraulic pump which has a displacement control piston assembly (6) having a large diameter chamber (7) for operating a displacement control member (5) of the variable displacemen... | 12/16/1997 |
| 5695663 | Plasma cutting method and NC plasma cutting apparatus The present invention relates to a plasma cutting method and an NC plasma cutting apparatus in which an improvement can be made in the quality of a bore-cut product obtained by using a transferred plasma arc, and the productive efficiency can also be enha... | 12/09/1997 |
| 5696331 | Apparatus for detecting metal powder amount in hydraulic circuit An apparatus for detecting an amount of metal powder in a hydraulic circuit for supplying a drain pressurized oil from a hydraulic pump driven by an engine is characterized by comprising a metal powder amount detection sensor (9) disposed in a flow passag... | 12/09/1997 |
| 5684694 | System for controlling a hydrostatic-mechanical transmission when an oil pressure exceeds a relief pressure A control system designed such that if a heavy load is imposed on a vehicle during running and a hydraulic relief state in which an oil pressure in a hydraulic circuit for a hydrostatic transmission unit exceeds a relief pressure is detected, the angle of... | 11/04/1997 |
| 5671137 | Response control system for hydrostatic-mechanical transmissions A response control system for a hydrostatic-mechanical transmission. In this system, it is determined in digging/moving operation whether an actual speed ratio which is the ratio of the revolution speed of the output shaft to the revolution speed of the p... | 09/23/1997 |
| 5666808 | Operating valve assembly with pressure compensation valve An operating valve assembly incorporates a pressure compensation valve and is capable of contributing down-sizing of a hydraulic circuit. The valve assembly includes an operating valve, compensation valves and a load pressure detecting portion. A valve bo... | 09/16/1997 |
| 5661671 | Bending angle detecting position setting device In bending angle detection, a linear projected light image formed on the surface of a workpiece is photographed by a photographing device; the actual inclination angle of a specimen is stored as data in correspondence with the inclination angle and positi... | 08/26/1997 |
| 5652805 | Bending angle detector and straight line extracting device for use therewith and bending angle detecting position setting device In bending angle detection, a linear projected light image formed on the surface of a workpiece is photographed by a photographing device; the actual inclination angle of a specimen is stored as data in correspondence with the inclination angle and positi... | 07/29/1997 |
| 5649443 | Transfer feeder A transfer feeder which comprises: a pair of lifting beams (9) which are so disposed as being parallel to each other and extending in a workpiece conveying direction; a lifting mechanism (10) for driving the said pair of the lifting beams in upward and do... | 07/22/1997 |
| 5647705 | Crankshaft miller and method of use thereof A crankshaft miller includes a pair of work heads for supporting both ends of a work, a cutter unit for processing the work and a work rest for supporting the work during processing. The cutter unit and the work rest are provided separately, but are coupl... | 07/15/1997 |
| 5648002 | Work transferring apparatus for thermal cutting machine A work transferring apparatus for a thermal cutting machine is used for processing a workpiece placed on a worktable moving freely along an X axis direction by means of a work head moving freely along a Y axis direction crossing the X axis direction. The ... | 07/15/1997 |
| 5642374 | Excimer laser device Aimed at preventing a laser light beam profile from fluctuating, and by using the fact that there is a substantially proportional relation between the beam profile and the charging voltage as well as between the beam profile and the composition or the tot... | 06/24/1997 |
