Patents Assigned to Crown Plastics Co.
  • Patent number: 11840404
    Abstract: A roller plate assembly includes a base plate having a plurality of openings distributed along a length and a width of the base plate. The roller plate assembly includes at least two cross supports coupled to the base plate. The roller plate assembly also includes a roller shaft extending at least partially through the at least two cross supports and a plurality of rollers rotatably mounted to the roller shaft. Each roller is disposed within a corresponding one of the plurality of openings and configured to project at least partly over the upper surface of the base plate. The plurality of rollers are configured to allow a package to move across the plurality of rollers from a first edge of the roller plate assembly to a second edge of the roller plate assembly in the length direction of the base plate.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: December 12, 2023
    Assignee: Crown Plastics Co.
    Inventor: Peter Ellerhorst
  • Patent number: 11780682
    Abstract: A roller assembly for use in a conveyor system is disclosed. The roller assembly includes a central rod having first and second ends and a longitudinal axis. The roller assembly includes a plurality of rollers rotatably mounted to the central rod such that adjacent rollers abut each other. A first shaft extends through each of the plurality of rollers and is offset from and extends parallel to the longitudinal axis of the rod, causing the plurality of rollers to rotate about the central rod in unison. A first collar and a second collar are mounted on respective first and second ends of the central rod. Each collar is selectably movable to the central rod so as to hold the plurality of rollers in a fixed position along a length of the central rod. A conveyor system with the roller assembly is also disclosed.
    Type: Grant
    Filed: February 18, 2022
    Date of Patent: October 10, 2023
    Assignee: Crown Plastics Co.
    Inventor: Peter Ellerhorst
  • Patent number: 11279565
    Abstract: A roller assembly for use in a conveyor system is disclosed. The roller assembly includes a shaft and a roller rotatably mounted to the shaft. In one embodiment, the roller is made of ultra-high molecular weight plastic. Each roller has first and second ends. The roller assembly further includes a first collar and a second collar mounted on the shaft. The first collar is positioned at the first end of the roller and the second collar is positioned at the second end of the roller. Each collar is selectably affixable to the shaft so as to hold the roller in a fixed position along the length of the shaft.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: March 22, 2022
    Assignee: Crown Plastics Co.
    Inventor: Peter Ellerhorst