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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US Patent 5960374 - System for time synchronous monitoring of product quality variable
US Patent Issued on September 28, 1999
Estimated Patent Expiration Date:
February 14, 2017Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
February 14, 2017Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractA system for monitoring of a product quality variable of a moving web produced by associated equipment defines cross-direction (CD) data increments across a width of the web and machine direction (MD) data increments over a running length of the web, and takes CD/MD measurements of the selected variable in order to fill the corresponding CD/MD measurement data boxes and generate a time-dependent two-dimensional array mapping representing the moving web. In the preferred system, the CD data increments are divided across the width of the web, and the MD data increments are time-divided intervals of the time period of an element of the production equipment, so as to produce a time-synchronous array mapping which shows the impact of the periodicity of the machine element on the product quality variable. | InventorAssigneeApplicationNo. 800866 filed on 02/14/1997US Classes:702/81, Quality evaluation162/198, With measuring, inspecting and/or testing700/129Profile analyzer or controllerField of Search702/81, Quality evaluation162/198, With measuring, inspecting and/or testing162/252, Automatic control162/258, Of stock consistency162/263Measuring, testing, inspecting, indicating or illuminatingExaminersPrimary: Stamber, Eric W.Attorney, Agent or FirmUS Patent References3622448, 3673865, 3794427, 3840302, 3936665, Sheet material characteristic measuring, monitoring and controlling method and apparatus using data profile generated and evaluated by computer meansIssued on: 02/03/1976 Inventor: Donoghue3989085, Method and apparatus for leveling the cross-direction profile of stock slurry on a papermachine Issued on: 11/02/1976 Inventor: Crosby4019066, Measuring the surface roughness of a moving sheet material Issued on: 04/19/1977 Inventor: Lucas , et al.4092068, Surface sensor Issued on: 05/30/1978 Inventor: Lucas, et al.4152202, Method and apparatus for leveling the cross-direction profile of stock slurry on a paper machine Issued on: 05/01/1979 Inventor: DeLigt4879471, Rapid-scanning infrared sensor Issued on: 11/07/1989 Inventor: Dahlquist4903528, System and process for detecting properties of travelling sheets in the cross direction Issued on: 02/27/1990 Inventor: Balakrishnan, et al.4921574, Process for controlling properties of travelling sheets with scan widths less than the sheet width Issued on: 05/01/1990 Inventor: Hu4947684, System and process for detecting properties of travelling sheets in the machine direction Issued on: 08/14/1990 Inventor: Balakrishnan5022966, Process for controlling properties of travelling sheets Issued on: 06/11/1991 Inventor: Hu5121332, Control system for sheetmaking Issued on: 06/09/1992 Inventor: Balakrishnan, et al.5122963, Actuation cell response and mapping determinations for web forming machines Issued on: 06/16/1992 Inventor: Chen5125746, Surface topography measurement apparatus and method Issued on: 06/30/1992 Inventor: Lipshitz5358606, Procedure and apparatus for fault location in the functioning of machine elements of a paper machine Issued on: 10/25/1994 Inventor: Makkonen5400258, Automatic cross-directional control zone alignment for sheetmaking systems Issued on: 03/21/1995 Inventor: He5725737, Apparatus for the detection of holes and plugged spots Issued on: 03/10/1998 Inventor: Pikulik, et al.5745365Web monitoring for paper machines Issued on: 04/28/1998 Inventor: Parker International ClassesG06F 019/00D21F 011/00 |
