Patents by Inventor Mark G. Prinster

Mark G. Prinster 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).

  • Dual mode spreader
    Patent number: 6945481
    Abstract: A dual mode spreader for broadcast spreading and drop spreading material comprising a hopper to hold a supply of spreadable material, first and second discharge openings located within the hopper for which spreadable material can flow therethrough, an impeller mounted in a position below the hopper for rotational movement about an upright axis, wherein the first discharge opening leads to impeller to enable the spreadable material in the hopper to exit therefrom onto the impeller to be distributed in a path outwardly therefrom onto the surface to be treated; and a diffuser defining an inlet opening and an outlet opening, wherein the second discharge opening is in communication with the inlet opening to enable the spreadable material in the hopper to enter the diffuser and exit therefrom through the outlet opening to be distributed in a path downwardly therefrom onto the surface to be treated.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: September 20, 2005
    Assignee: Lesco Technologies, LLC
    Inventors: Peter G. Thompson, Kirk A. Hurto, Mark G. Prinster
  • Dual mode spreader
    Publication number: 20030057303
    Abstract: A dual mode spreader for broadcast spreading and drop spreading material comprising a hopper to hold a supply of spreadable material, first and second discharge openings located within the hopper for which spreadable material can flow therethrough, an impeller mounted in a position below the hopper for rotational movement about an upright axis, wherein the first discharge opening leads to impeller to enable the spreadable material in the hopper to exit therefrom onto the impeller to be distributed in a path outwardly therefrom onto the surface to be treated; and a diffuser defining an inlet opening and an outlet opening, wherein the second discharge opening is in communication with the inlet opening to enable the spreadable material in the hopper to enter the diffuser and exit therefrom through the outlet opening to be distributed in a path downwardly therefrom onto the surface to be treated.
    Type: Application
    Filed: September 27, 2001
    Publication date: March 27, 2003
    Inventors: Peter G. Thompson, Kirk A. Hurto, Mark G. Prinster