Patents by Inventor Craig Donaldson

Craig Donaldson 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: 7503940
    Abstract: Methods for spot-dyeing a damaged area on a textile employing a selected color loss filter and utilizing at least one of a primary color dye. In one embodiment, the method can include the following: inspecting the damaged area through the selected color loss filter; determining whether a primary color is missing from the damaged area by being able to view the damaged area through the selected color loss filter to, thereby, confirm that the primary color is missing from the damaged area; and applying at least one of a primary color dye, corresponding to the selected color loss filter, to the damaged area, while viewing the damaged area through the color loss filter, until the damaged area is substantially invisible through the color loss filter.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: March 17, 2009
    Assignee: Harris Research, Inc.
    Inventors: Craig Donaldson, Edward E. Durrant
  • Publication number: 20040177452
    Abstract: Three separate color loss filters are used to aid an applicator's ability to accurately match a textile color. These filters include a blue loss filter, a red loss filter, and a yellow loss filter which only allow a narrow band of light wavelengths to pass through. Working dye solutions are prepared according to the shade of the textile or they may be more accurately prepared according to a comparator gray scale card, which is used to determine the contrast between a white sample and an undamaged area of the textile to be dyed. While inspecting the damaged area through the blue loss filter, any visible spots indicate a blue color loss in the damaged area. The applicator applies a previously prepared working blue dye to a damaged area repeatedly, while looking through the blue loss filter, until the damaged area is invisible. The excess dye is vacuum extracted. The same process is repeated for red and yellow dyes, utilizing their respective color loss filters, until a near perfect color match is achieved.
    Type: Application
    Filed: February 13, 2004
    Publication date: September 16, 2004
    Inventors: Craig Donaldson, Edward E. Durrant
  • Patent number: 5306345
    Abstract: A deposition chamber for forming a deposited layer on a wafer having a mixing chamber is disclosed having a wafer support device for supporting the wafers in the mixing chamber, a nozzle located above the wafer support device which can eject the gas/particle mixture into the mixing chamber toward the wafer, a gas outlet device at the bottom end of the chamber from the gas nozzle which allows the gas to exit the chamber and a deionizing device located above the wafer support device and below the nozzle to deionize the gas/particle mixture thereby encouraging uniform deposition of the particles on the wafer. This deposition chamber may also comprise an exhaust fan below the gas outlet device.
    Type: Grant
    Filed: August 25, 1992
    Date of Patent: April 26, 1994
    Assignee: Particle Solutions
    Inventors: Carrie Pellet, Craig Donaldson
  • Patent number: D350942
    Type: Grant
    Filed: August 25, 1992
    Date of Patent: September 27, 1994
    Assignee: Particle Solutions
    Inventors: Carrie Pellet, Craig Donaldson