Patents by Inventor Steve Hanvey

Steve Hanvey 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).

  • Pavement/surface sweeper having a simplified hydraulic system
    Patent number: 7441303
    Abstract: A sweeper unit well-suited for use for sweeping paved areas includes a debris-retaining hopper with an associated fan assembly that includes an air outlet duct for connection to one side of a pick-up head and an inlet duct for connection between the other side of the pickup head and the debris-retaining hopper. A fan drive arrangement includes at least a first and a second hydraulic displacement device to drive the fan and, when required, provide a flow of hydraulic fluid for auxiliary devices including the gutter broom motor(s).
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: October 28, 2008
    Assignee: Schwarze Industries, Inc.
    Inventors: Jim E Adair, Steve Hanvey, James A. Garrett
  • Pavement/surface sweeper having a simplified hydraulic system
    Publication number: 20070124892
    Abstract: A sweeper unit well-suited for use for sweeping paved areas includes a debris-retaining hopper with an associated fan assembly that includes an air outlet duct for connection to one side of a pick-up head and an inlet duct for connection between the other side of the pickup head and the debris-retaining hopper. A fan drive arrangement includes at least a first and a second hydraulic displacement device to drive the fan and, when required, provide a flow of hydraulic fluid for auxiliary devices including the gutter broom motor(s).
    Type: Application
    Filed: October 25, 2006
    Publication date: June 7, 2007
    Inventors: Jim Adair, Steve Hanvey, James Garrett