Patents by Inventor Paul L. Thomason

Paul L. Thomason 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).

  • Apparatus for the application of a gasket inside closures comprising a cup, such as screw-on and crown caps
    Patent number: 5007150
    Abstract: The invention refers to an apparatus which allows the application of a round gasket or liner inside closures. The apparatus consists of a plastic material batching carousel carrying, on a horizontal plate a plurality of shuttles or molds peripherically distributed and whose top surface is provided with a recess or hollow. On the carousel are elements which take and leave batches of plastic material supplied by an extruder inside the recesses. A first star wheel at the bottom of the carousel is provided to transfer the shuttles having the batches therein towards a forming carousel where the batches of plastic material are pressed to form round gaskets. A second star is provided to transfer the shuttles with the molded gaskets toward a further carousel where gaskets are inserted into cups or closures.
    Type: Grant
    Filed: July 20, 1990
    Date of Patent: April 16, 1991
    Assignee: Tredegar Molded Products Company
    Inventors: Rodiero Alieri, Paul L. Thomason
  • Apparatus for the application of a gasket inside closures comprising a cup, such as screw-on and crown caps
    Patent number: 4979282
    Abstract: The invention refers to an apparatus which allows the application of a round gasket or liner inside closures. The apparatus consists of a plastic material batching carousel carrying, on a horizontal plate a plurality of shuttles or molds peripherically distributed and whose top surface is provided with a recess or hollow. On the carousel are elements which take and leave batches of plastic material supplied by an extruder inside the recesses. A first star wheel at the bottom of the carousel is provided to transfer the shuttles having the batches therein towards a forming carousel where the batches of plastic material are pressed to form round gaskets. A second star is provided to transfer the shuttles with the molded gaskets toward a further carousel where gaskets are inserted into cups or closures.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: December 25, 1990
    Assignee: Tredegar Molder Products Company
    Inventors: Rodiero Alieri, Paul L. Thomason