Patents by Inventor David J. Zook

David J. Zook 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).

  • Patent number: 7216048
    Abstract: A control system coupled to a pressure sensor calibrates the pressure sensor. The control system may measure a plurality of capacitance values at a plurality of corresponding applied voltages to compare the values with a first calibration mechanism generated by sample pressure sensors in a comparison. A final calibration mechanism may be generated by adjusting the first calibration mechanism in response to the comparison. The unknown differential pressure may be applied to a diaphragm of the pressure sensor. A capacitance value at the unknown differential pressure may then be measured. Using the final calibration mechanism, the differential pressure at the measured capacitance value may be retrieved.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: May 8, 2007
    Assignee: Honeywell International Inc.
    Inventors: Tzu-Yu Wang, Cleopatra Cabuz, Eugen I Cabuz, Stephen R. Shiffer, David J. Zook
  • Patent number: 7061595
    Abstract: An apparatus having scattering and multi-color fluorescence detecting, analyzing and identification capabilities of blood or other fluids of interest. The sample to be tested may be entered in a disposable microfluidic cartridge which in turn is insertable in a hand-holdable or implantable miniaturized and portable cytometer instrument. This cytometer has significant application in biological warfare agent detection, hematology and other clinical and research fields.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: June 13, 2006
    Assignee: Honeywell International Inc.
    Inventors: Cleopatra Cabuz, Eugen Cabuz, David J. Zook
  • Patent number: 7057402
    Abstract: Carbon nanotubes are formed on projections on a substrate. A metal, such as nickel is deposited on the substrate with optional platforms, and heated to form the projections. Carbon nanotubes are formed from the projections by heating in an ethylene, methane or CO atmosphere. A heat sensor is also formed proximate the carbon nanotubes. When exposed to IR radiation, the heat sensor detects changes in temperature representative of the IR radiation. In a gas sensor, a thermally isolated area, such as a pixel is formed on a substrate with an integrated heater. A pair of conductors each have a portion adjacent a portion of the other conductor with projections formed on the adjacent portions of the conductors. Multiple carbon nanotubes are formed between the conductors from one projection to another. IV characteristics of the nanotubes are measured between the conductors in the presence of a gas to be detected.
    Type: Grant
    Filed: January 10, 2005
    Date of Patent: June 6, 2006
    Assignee: Honeywell International Inc.
    Inventors: Barrett E. Cole, David J. Zook
  • Patent number: 6919730
    Abstract: Carbon nanotubes are formed on projections on a substrate. A metal, such as nickel is deposited on the substrate with optional platforms, and heated to form the projections. Carbon nanotubes are formed from the projections by heating in an ethylene, methane or CO atmosphere. A heat sensor is also formed proximate the carbon nanotubes. When exposed to IR radiation, the heat sensor detects changes in temperature representative of the IR radiation. In a gas sensor, a thermally isolated area, such as a pixel is formed on a substrate with an integrated heater. A pair of conductors each have a portion adjacent a portion of the other conductor with projections formed on the adjacent portions of the conductors. Multiple carbon nanotubes are formed between the conductors from one projection to another. IV characteristics of the nanotubes are measured between the conductors in the presence of a gas to be detected.
    Type: Grant
    Filed: March 18, 2002
    Date of Patent: July 19, 2005
    Assignee: Honeywell International, Inc.
    Inventors: Barrett E. Cole, David J. Zook