Patents by Inventor William O. Gran

William O. Gran 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: 7344300
    Abstract: An improved paint mixer of the type rotating a paint container about a tumbling axis and a perpendicular spin axis, the improvements of a clamp assembly and lock, splash guards protecting a range-of-travel of upright clamp portions, low friction guide plates, an adjustable height strike plate and roller, a rigid gear assembly, an offset in the clamp to return the paint container to an upright position after mixing, and a relief in a raised portion on a lower plate of the clamp for assisting loading and unloading of the paint container.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: March 18, 2008
    Assignee: Red Devil Equipment Company
    Inventors: Thomas J. Midas, Brent Thomas Harrold, William O. Gran
  • Patent number: 7311437
    Abstract: An improved paint mixer of the type rotating a paint container about a tumbling axis and a perpendicular spin axis, the improvements of a clamp assembly and lock, splash guards protecting a range-of-travel of upright clamp portions, low friction guide plates, an adjustable height strike plate and roller, a rigid gear assembly, an offset in the clamp to return the paint container to an upright position after mixing, and a relief in a raised portion on a lower plate of the clamp for assisting loading and unloading of the paint container.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: December 25, 2007
    Assignee: Red Devil Equipment Company
    Inventors: Thomas J. Midas, Brent Thomas Harrold, William O. Gran
  • Patent number: 7165879
    Abstract: An improved paint mixer of the type rotating a paint container about a tumbling axis and a perpendicular spin axis, the improvements of a clamp assembly and lock, splash guards protecting a range-of-travel of upright clamp portions, low friction guide plates, an adjustable height strike plate and roller, a rigid gear assembly, an offset in the clamp to return the paint container to an upright position after mixing, and a relief in a raised portion on a lower plate of the clamp for assisting loading and unloading of the paint container.
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: January 23, 2007
    Assignee: Red Devil Equipment Company
    Inventors: Thomas J. Midas, Brent Thomas Harrold, William O. Gran
  • Patent number: 5749652
    Abstract: The present invention provides a mixing apparatus and method for mixing fluent material such as paint or the like in a container. The apparatus includes a main frame and a subframe movably connected to the main frame. A drive motor is mounted on the main frame, and a container receiving and securing support is mounted on the subframe. A transmission mounted on the main frame operably connects the motor and the subframe, and converts the rotary output of the motor to a circular motion of the subframe. In operation, the circular motion agitates the fluent material in the container to mix it in a short period without producing the destructive forces leading to mechanical breakdowns associated with other mixers.
    Type: Grant
    Filed: March 28, 1996
    Date of Patent: May 12, 1998
    Assignee: Red Devil Equipment Company
    Inventors: Randy J. Brunn, William O. Gran, James P. Junk