Patents by Inventor Richard J. Sofranec

Richard J. Sofranec 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: 7216759
    Abstract: A plastic conveyor belt module with embedded spherical rollers retained in the module and a belt constructed of such modules. The module includes a module body forming a cavity, a spherical roller in the cavity, and a retainer retained in the cavity to hold the spherical roller rotatably in place. A salient portion of the roller extends outward from the cavity through the retainer past an outer surface of the module. The retainer is attached to the module body by ultrasonic welding, epoxy- or solvent-bonding, spin welding, electromagnetic welding, staking, screwing, or locking.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: May 15, 2007
    Assignee: Laitram, L.L.C.
    Inventors: Brien G. Rau, Richard J. Sofranec
  • Patent number: 6997306
    Abstract: A plastic conveyor belt module with embedded rollers retained in the module and a method for making such a module. The module includes a module body forming a cavity, a roller in the cavity, and a retainer received in the cavity to hold the roller rotatably in place. A salient portion of the roller extends outward from the cavity through the retainer past an outer surface of the module. The retainer is attached to the module body by ultrasonic welding, epoxy- or solvent-bonding, spin welding, electromagnetic welding, staking, screwing, or locking.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: February 14, 2006
    Assignee: Laitram, L.L.C.
    Inventors: Richard J. Sofranec, Brien G. Rau
  • Patent number: 6964332
    Abstract: A two-material plastic sprocket for modular plastic conveyor belts and an associated method for molding such a sprocket. The sprocket is made of a first plastic material forming the exterior skin and a second plastic material forming the interior core. The sprocket is preferably molded in a co-injection molding process.
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: November 15, 2005
    Assignee: Laitram, L.L.C.
    Inventors: Christopher J. Verdigets, Richard J. Sofranec
  • Publication number: 20040222072
    Abstract: A two-material plastic sprocket for modular plastic conveyor belts and an associated method for molding such a sprocket. The sprocket is made of a first plastic material forming the exterior skin and a second plastic material forming the interior core. The sprocket is preferably molded in a co-injection molding process.
    Type: Application
    Filed: May 9, 2003
    Publication date: November 11, 2004
    Applicant: LAITRAM, L.L.C.
    Inventors: Christopher J. Verdigets, Richard J. Sofranec
  • Patent number: 6138819
    Abstract: A sectional article transfer assembly for receiving articles stripped from the conveying surface of a moving conveyor belt. The article transfer assembly includes, as a first piece, a transfer edge member having a base portion lying on and supported by a support frame and a belt-abutting portion that extends from the base portion to closely abut the conveying surface of a conveyor belt as it passes around a sprocket. The belt-abutting portion can have fingers or a beveled straight edge, for example. The transfer edge member mates with a second piece, a transfer plate member, which has a recessed portion that overlaps and mates with the base portion of the transfer edge member and a flat top article-transfer plate continuous and coplanar with an upper surface of the transfer edge member to form an extension of the conveying surface of the belt along which articles arc conveyed.
    Type: Grant
    Filed: June 9, 1998
    Date of Patent: October 31, 2000
    Assignee: The Laitram Corporation
    Inventors: David W. Bogle, Timothy J. Hicks, Sandra A. Christiana, Paul L. Horton, Richard J. Sofranec, Christopher G. Greve