Patents by Inventor John G. Preston

John G. Preston has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Dual standard gloss sensor
    Patent number: 6404502
    Abstract: A single gloss sensor which can perform both DIN gloss measurement and DIN high gloss measurement, using the same hardware, and with minimal delay between the two measurements. The gloss sensor functions by directing light beams from a source to two different positions, either concurrently, or sequentially, between a position which measures gloss (75.degree) and a position which measures high gloss (45.degree). The gloss sensor also provides a reference light beam for correction of errors caused by the window glass, such as by dirt buildup.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: June 11, 2002
    Assignee: Honeywell-Measurex Corporation
    Inventors: John G. Preston, Edward Belotserkovsky
  • Dual standard gloss sensor
    Publication number: 20010033382
    Abstract: A single gloss sensor which can perform both DIN gloss measurement and DIN high gloss measurement, using the same hardware, and with minimal delay between the two measurements. The gloss sensor functions by directing light beams from a source to two different positions, either concurrently, or sequentially, between a position which measures gloss (75.degree) and a position which measures high gloss (45.degree). The gloss sensor also provides a reference light beam for correction of errors caused by the window glass, such as by dirt buildup.
    Type: Application
    Filed: December 29, 2000
    Publication date: October 25, 2001
    Inventors: John G. Preston, Edward Belotserkovsky
  • Dual standard gloss sensor
    Patent number: 6233053
    Abstract: A single gloss sensor which can perform both DIN gloss measurement and DIN high gloss measurement, using the same hardware, and with minimal delay between the two measurements. The invention functions by directing light beams from a source to two different positions, either concurrently, or sequentially, between a position which measures gloss (75°) and a position which measures high gloss (45°).
    Type: Grant
    Filed: July 28, 1998
    Date of Patent: May 15, 2001
    Assignee: Honeywell International INC
    Inventors: John G. Preston, Edward Belotserkovsky
  • Wet end control for papermaking machine
    Patent number: 6086716
    Abstract: System and method for producing paper are provided. The system controls formation of wet stock comprising fibers on a moving water permeable wire of a de-watering machine that has means for supplying the amount of pulp from at least one source, means for adding an amount of non-fibrous additives to the wet stock, a refiner that is subject to a variable load and a headbox having at least one slice, wherein each slice has an aperture through which wet stock is discharged onto the wire.
    Type: Grant
    Filed: May 11, 1998
    Date of Patent: July 11, 2000
    Assignee: Honeywell-Measurex Corporation
    Inventors: John David Watson, Claud Hagart-Alexander, John D. Goss, John G. Preston, Hung-Tzaw Hu, Laslo Dudas