Patents by Inventor Bob Stoolmaker

Bob Stoolmaker 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).

  • In-mold finished neck on a continuous extrusion blow molder
    Patent number: 7485253
    Abstract: The invention provides a mold for use in a wheel blow-molding device. The mold has a first half and a second half, each half having a rotation direction and a transverse direction perpendicular to the rotation direction, each half having a container-shaped cavity, adapted to receive a parison, wherein the cavity has a body portion and a neck portion; and a blow pin tip disposed in the mold, adapted to be inserted into an open end of the parison in the neck portion of the cavity, the blow pin tip being adapted to blow a gas into the parison to blow mold a container.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: February 3, 2009
    Assignee: Graham Packaging Company, L.P.
    Inventors: David A. Kesselman, Roy N. Krohn, Bob Stoolmaker, John A. Garman
  • Container having a smooth finish
    Publication number: 20060283827
    Abstract: A container defines a longitudinal axis, and comprises a neck, and a finish merging with the neck. The finish comprises a first lip, a second lip spaced apart from the first lip in a direction that is substantially parallel to the longitudinal axis, and a curved portion connecting the first lip with the second lip.
    Type: Application
    Filed: June 15, 2006
    Publication date: December 21, 2006
    Applicant: Graham Packaging Company, LP
    Inventors: Gilles Perez, David Cargile, Bob Stoolmaker
  • In-mold finished neck on a continuous extrusion blow molder
    Publication number: 20060257520
    Abstract: The invention provides a mold for use in a wheel blow-molding device. The mold has a first half and a second half, each half having a rotation direction and a transverse direction perpendicular to the rotation direction, each half having a container-shaped cavity, adapted to receive a parison, wherein the cavity has a body portion and a neck portion; and a blow pin tip disposed in the mold, adapted to be inserted into an open end of the parison in the neck portion of the cavity, the blow pin tip being adapted to blow a gas into the parison to blow mold a container.
    Type: Application
    Filed: May 18, 2006
    Publication date: November 16, 2006
    Applicant: Graham Packaging Company, L.P.
    Inventors: David Kesselman, Roy Krohn, Bob Stoolmaker, John Garman
  • Knife for trimming plastic container
    Publication number: 20050284275
    Abstract: A knife for trimming comprising a circular blade adapted for attachment to a rotating flange at a point away from the center of the blade, such that said blade rotates eccentrically when said flange is rotated.
    Type: Application
    Filed: June 28, 2004
    Publication date: December 29, 2005
    Applicant: GRAHAM PACKAGING COMPANY, L.P.
    Inventors: Rob Schnabel, Bob Stoolmaker