Patents by Inventor James L. Stuart

James L. Stuart 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: 5356581
    Abstract: A device and method for producing pellets from film. A cradle is rotatably mounted about a longitudinal axis of rotation to a main frame. An axle arranged perpendicular to the longitudinal axis holds one or more rolls of film. A plurality of drive rollers pull the film from the rolls while the rolls are rotated on the longitudinal axis twisting the film into a strand. An oven located between the rolls and drive rollers heats the strand to permanently set the twist therein. A pelletizer located aft of the drive rollers cuts the strand into individual pellets. In a modified version, glass roving is extended through the holder past the roll and wrapped with the film into a single strand. In an alternate embodiment, the roll of film is mounted to an axle having a longitudinal axis extending in the same direction as the axis of rotation. The film is pulled axially off the roll and twisted into a strand.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: October 18, 1994
    Assignee: Replas Incorporated
    Inventor: James L. Stuart
  • Patent number: 5348465
    Abstract: A device for producing pellets from film. A cradle is rotatably mounted about a longitudinal axis of rotation to a main frame. All axle arranged perpendicular to tim longitudinal axis holds a roll of film within the cradle. A second roll of film is mounted outside of the cradle, is held by a second axle arranged perpendicular to the longitudinal axis of the cradle, and is fed into the cradle to a position adjacent and parallel to film unwound from the first roll. A plurality of drive rollers pull the film from the rolls while the rolls are rotated about the longitudinal axes twisting the film into a strand. An oven located between the rolls and drive rollers heats the strand to permanently set the twist therein. A pelletizer located aft of the drive rollers cuts the strand into individual pellets. In a modified version, the second roll is split into multiple sheets prior to entering the cradle by one or more film splitters.
    Type: Grant
    Filed: September 15, 1992
    Date of Patent: September 20, 1994
    Assignee: Replas Incorporated
    Inventor: James L. Stuart
  • Patent number: 5139403
    Abstract: A device for producing pellets from film. A cradle is rotatably mounted about a longitudinal axis of rotation to a main frame. An axle arranged perpendicular to the longitudinal axis holds one or more rolls of film. A plurality of drive rollers pull the film from the rolls while the rolls are rotated on the longitudinal axis twisting the film into a strand. An oven located between the rolls and drive rollers heats the strand to permanently set the twist thereon. A pelletizer located aft of the drive rollers cuts the strand into individual pellets. In a modified version, glass roving is extended through the holder past the roll and wrapped with the film into a single strand. In an alternate embodiment, the roll of film is mounted to an axle having a longitudinal axis extending in the same direction as the axis of rotation. The film is pulled axially off the roll and twisted into a strand.
    Type: Grant
    Filed: March 25, 1991
    Date of Patent: August 18, 1992
    Assignee: Replas Incorporated
    Inventor: James L. Stuart