Patents by Inventor Paul M. Parmenter

Paul M. Parmenter 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: 11001448
    Abstract: In some embodiments, apparatuses and methods are provided herein useful to conveyor systems including liftgates. In some embodiments, a conveyor system including a liftgate comprises a conveyor section including a plurality of rollers, a liftgate section comprising a frame having a proximal end and a distal end and including sidewalls, a plurality of liftgate rollers positioned within the frame, a front bracket and a rear bracket, wherein the front bracket is positioned between the sidewalls toward the proximal end and the rear bracket is positioned toward the distal end, and wherein the rear bracket is pivotably affixed to the conveyor section, and an actuator affixed to the rear bracket and the front bracket configured to provide a linear force acting between the rear bracket and the front bracket, wherein the linear force causes the proximal end of the liftgate portion to raise with respect to the conveyor section.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: May 11, 2021
    Assignee: Walmart Apollo, LLC
    Inventor: Paul M. Parmenter
  • Publication number: 20200189848
    Abstract: In some embodiments, apparatuses and methods are provided herein useful to conveyor systems including liftgates. In some embodiments, a conveyor system including a liftgate comprises a conveyor section including a plurality of rollers, a liftgate section comprising a frame having a proximal end and a distal end and including sidewalls, a plurality of liftgate rollers positioned within the frame, a front bracket and a rear bracket, wherein the front bracket is positioned between the sidewalls toward the proximal end and the rear bracket is positioned toward the distal end, and wherein the rear bracket is pivotably affixed to the conveyor section, and an actuator affixed to the rear bracket and the front bracket configured to provide a linear force acting between the rear bracket and the front bracket, wherein the linear force causes the proximal end of the liftgate portion to raise with respect to the conveyor section.
    Type: Application
    Filed: December 13, 2019
    Publication date: June 18, 2020
    Inventor: Paul M. Parmenter