Patents by Inventor Alan Ward Zemen

Alan Ward Zemen 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: 6845858
    Abstract: A concrete chute is extruded in two sections for permitting a light weight chute to be constructed wherein the sections are welded together and reinforced with a bottom stiffener for ensuring stability of the chute. A liner is designed to be installed from a distal or front end of the chute for facilitating the insertion and removal of the liner. The liner fits within an extruded slide disposed along the edges of the chute and is secured to the distal end of the chute by a liner retainer to ensure that concrete does not seep between the liner and the chute. An extruded pin retainer is provided that is positioned on a proximal end of the chute for enabling attachment of the chute to a cement truck or to the distal end of an adjacent chute during use in dispensing concrete from the truck.
    Type: Grant
    Filed: February 3, 2004
    Date of Patent: January 25, 2005
    Assignee: Summit Manufacturing Corporation
    Inventors: David Wayne McVay, Alan Ward Zemen
  • Publication number: 20040154898
    Abstract: A concrete chute is extruded in two sections for permitting a light weight chute to be constructed wherein the sections are welded together and reinforced with a bottom stiffener for ensuring stability of the chute. A liner is designed to be installed from a distal or front end of the chute for facilitating the insertion and removal of the liner. The liner fits within an extruded slide disposed along the edges of the chute and is secured to the distal end of the chute by a liner retainer to ensure that concrete does not seep between the liner and the chute. An extruded pin retainer is provided that is positioned on a proximal end of the chute for enabling attachment of the chute to a cement truck or to the distal end of an adjacent chute during use in dispensing concrete from the truck.
    Type: Application
    Filed: February 3, 2004
    Publication date: August 12, 2004
    Inventors: David Wayne McVay, Alan Ward Zemen