Patents by Inventor William P. Bartlett, SR.

William P. Bartlett, SR. 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).

  • Concrete mixing drum fin structure
    Patent number: 8646965
    Abstract: A mixing fin assembly adapted to mix and guide materials in a rotatable mixing drum of a type used in a transit concrete mixing vehicle includes a spiral mixing fin designed to extend transversely into the drum constructed of a lightweight, moldable polymeric material which is flexible and resistant to abrasion, the mixing fin includes a plurality of conjoined sections that are fit together, preferably utilizing fin locking tabs and mating fin locking sockets. A preferred way of mounting the mixing fin into mixing drums uses a spiral fin mount rail track adapted to be fixed to the interior surface of the mixing drum. A locking tab locks the upper part of the rail track into the fin structure.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: February 11, 2014
    Assignee: McNeilus Truck and Manufacturing, Inc.
    Inventors: Bryan S. Datema, Thomas G. Lindblom, Thomas J. Harris, Clint D. Glunz, William P. Bartlett, Sr.
  • Concrete Mixing Drum Fin Structure
    Publication number: 20130107656
    Abstract: A mixing fin assembly adapted to mix and guide materials in a rotatable mixing drum of a type used in a transit concrete mixing vehicle includes a spiral mixing fin designed to extend transversely into the drum constructed of a lightweight, moldable polymeric material which is flexible and resistant to abrasion, the mixing fin includes a plurality of conjoined sections that are fit together, preferably utilizing fin locking tabs and mating fin locking sockets. A preferred way of mounting the mixing fin into mixing drums uses a spiral fin mount rail track adapted to be fixed to the interior surface of the mixing drum. A locking tab locks the upper part of the rail track into the fin structure.
    Type: Application
    Filed: October 27, 2011
    Publication date: May 2, 2013
    Applicant: McNeilus Truck and Manufacturing, Inc.
    Inventors: Bryan S. Datema, Thomas G. Lindblom, Thomas J. Harris, Clint D. Glunz, William P. Bartlett, SR.