Patents by Inventor Gary G. Charlson

Gary G. Charlson 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).

  • High efficiency hot water pressure washer
    Patent number: 9724734
    Abstract: An improved hot water pressure washer utilizes a combination of technologies to achieve lower emission levels and increased operational efficiency. A forced air natural gas or forced air oil burner utilizes a flue gas and recirculation line to lower carbon monoxide and NOx emissions from a burner. A flue gas heat exchanger is utilized to lower the temperature of the exhaust gas. The lower exhaust gas temperatures allow for lower cost materials to be utilized. The efficiency levels of a hot water pressure washer are increased over known devices.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: August 8, 2017
    Assignee: Kärcher North America, Inc.
    Inventors: Paul W. Linton, Gary G. Charlson, Dana Sean Plummer, Thomas E. Corsine
  • HIGH EFFICIENCY HOT WATER PRESSURE WASHER
    Publication number: 20160221044
    Abstract: An improved hot water pressure washer utilizes a combination of technologies to achieve lower emission levels and increased operational efficiency. A forced air natural gas or forced air oil burner utilizes a flue gas and recirculation line to lower carbon monoxide and NOx emissions from a burner. A flue gas heat exchanger is utilized to lower the temperature of the exhaust gas. The lower exhaust gas temperatures allow for lower cost materials to be utilized. The efficiency levels of a hot water pressure washer are increased over known devices.
    Type: Application
    Filed: January 28, 2016
    Publication date: August 4, 2016
    Inventors: Paul W. Linton, Gary G. Charlson, Dana Sean Plummer, Thomas E. Corsine