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Conveyor belt modules with embedded spherical rollers retained in the modules

  • US 7,216,759 B2
  • Filed: 08/12/2005
  • Issued: 05/15/2007
  • Est. Priority Date: 01/21/2004
  • Status: Active Grant
First Claim
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1. A plastic conveyor belt module comprising:

  • a module body extending in thickness from a first side to a second side and forming a cavity opening onto at least one of the first and second sides;

    a spherical roller disposed in the cavity; and

    a retainer ring retained in the cavity and having a central opening with a diameter less than the diameter of the spherical roller to cover a portion of the spherical roller to retain the roller rotatably in the cavity with a salient portion of the roller extending outward of at least one of the first and second sides of the module body.

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