Patents by Inventor Doug Graham

Doug Graham 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).

  • Publication number: 20170073914
    Abstract: Systems, methods and devices for converting existing ice resurfacers to reuse collected ice and snow for further ice resurfacing. The systems, methods and devices allows for efficient, clean and environmental friendly ice resurfacing. The conversion includes the modification and/or replacement of the snow dump tank, main water tank and the installing of heating and power systems. This invention is designed for present machines and for incorporation into future manufacturing of ice resurfacers. While reducing the requirement for large amounts of fresh water, the surface water being pre-heated by two commercial hot water tanks, it also reduces the amount of labour and costs associated with ice resurfacing.
    Type: Application
    Filed: August 26, 2016
    Publication date: March 16, 2017
    Inventors: Ronald ALBERT, Doug GRAHAM, Darin DOWICH, Marc BURNET
  • Patent number: 9453313
    Abstract: Systems, methods and devices for converting existing ice resurfacers to reuse collected ice and snow for further ice resurfacing. The systems, methods and devices allows for efficient, clean and environmental friendly ice resurfacing. The conversion includes the modification and/or replacement of the snow dump tank, main water tank and the installing of heating and power systems. This invention is designed for present machines and for incorporation into future manufacturing of ice resurfacers. While reducing the requirement for large amounts of fresh water, the surface water being pre-heated by two commercial hot water tanks, it also reduces the amount of labor and costs associated with ice resurfacing.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: September 27, 2016
    Assignee: GREINS ENVIRONMENTAL TECHNOLOGIES INC.
    Inventors: Ronald Albert, Doug Graham, Darin Dowich, Marc Burnet
  • Publication number: 20150143725
    Abstract: Systems, methods and devices for converting existing ice resurfacers to reuse collected ice and snow for further ice resurfacing. The systems, methods and devices allows for efficient, clean and environmental friendly ice resurfacing. The conversion includes the modification and/or replacement of the snow dump tank, main water tank and the installing of heating and power systems. This invention is designed for present machines and for incorporation into future manufacturing of ice resurfacers. While reducing the requirement for large amounts of fresh water, the surface water being pre-heated by two commercial hot water tanks, it also reduces the amount of labour and costs associated with ice resurfacing.
    Type: Application
    Filed: May 1, 2013
    Publication date: May 28, 2015
    Inventors: Ronald Albert, Doug Graham, Darin Dowich, Marc Burnet
  • Patent number: 8965024
    Abstract: A rotary reciprocating acoustic transducer for producing sound in response to an applied electrical signal has a ported tubular housing having a generally cylindrical chamber with an interior lumen which is generally symmetrical about a central axis and opposing first and second linear reciprocating electrodynamic motors mounted over the tubular housing member's first and second open end, with a reciprocating rotatable transducer vane assembly with first and second rotating vanes projecting radially away from a central, axially aligned shaft driven by the first and second linear reciprocating motors.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: February 24, 2015
    Inventor: Doug Graham
  • Publication number: 20140140559
    Abstract: A rotary reciprocating acoustic transducer for producing sound in response to an applied electrical signal has a ported tubular housing having a generally cylindrical chamber with an interior lumen which is generally symmetrical about a central axis and opposing first and second linear reciprocating electrodynamic motors mounted over the tubular housing member's first and second open end, with a reciprocating rotatable transducer vane assembly with first and second rotating vanes projecting radially away from a central, axially aligned shaft driven by the first and second linear reciprocating motors.
    Type: Application
    Filed: November 20, 2013
    Publication date: May 22, 2014
    Inventor: Doug Graham
  • Patent number: 5585269
    Abstract: Isolated DNAs encoding a mammalian c-mer receptor which exhibits c-mer protooncogene activity and tyrosine kinase activity are disclosed. Also disclosed are vectors containing such DNAs, host cells containing such DNAs, c-mer receptor proteins, and soluble axl receptors, chimeric proteins including the extracellular domain of the c-mer receptor and DNAs encoding such chimeric proteins, and antibodies which specifically bind the c-mer receptor.
    Type: Grant
    Filed: June 2, 1994
    Date of Patent: December 17, 1996
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: H. Shelton Earp, III, Doug Graham, Thomas L. Dawson, David L. Mullaney, Hiram R. Snodgrass