Patents by Inventor John P. Czarnecki

John P. Czarnecki 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: 5152951
    Abstract: In a tire mold having a pair of mold parts separable about cooperating surfaces of the respective mold parts which define a parting line region, each of the mold parts includes a surface defining at least a portion of a cavity for shaping a tire. The tire mold further includes a plurality of pockets for defining a respective plurality of circumferentially arranged tread elements in the tire. The improvement comprises a vacuum source in fluid communication with the cavity of the tire mold for evacuating fluid from the cavity in the tire mold through a space located between the surfaces of the mold parts which define the parting line region. A vent fluidly connects a pair of adjacent pockets. A passage associated with one of the mold parts provides fluid communication between the vacuum source and one of the pair of adjacent pockets connected by the vent.
    Type: Grant
    Filed: July 27, 1990
    Date of Patent: October 6, 1992
    Assignee: The Uniroyal Goodrich Tire Company
    Inventors: Shamim Ahmad, Donald R. Bartley, John P. Czarnecki
  • Patent number: 5059380
    Abstract: A mold for curing a green tire which is made of an elastomeric material capable of flowing prior to curing. The mold includes a surface defining a cavity in the mold for receiving the green tire. A passage communicates the cavity with the exterior of the mold. A vent plug is located in the passage. The vent plug has an opening extending therethrough communicating the cavity with the passage. Elastomeric material may flow into the opening to form a projection extending from the tire as the green tire is pressed against the surface defining the cavity during a molding operation. The vent plug has a portion extending into the cavity a predetermined distance from the surface to form a recess in the tire adjacent the projection. The recess provides a space that the projection may deflect into to prevent shearing off of the projection during removal of the tire from the mold.
    Type: Grant
    Filed: February 22, 1990
    Date of Patent: October 22, 1991
    Assignee: The Uniroyal Goodrich Tire Company
    Inventors: Thomas E. Wise, John P. Czarnecki, William F. Mattson
  • Patent number: D447331
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: September 4, 2001
    Assignee: Phoenix International, Inc.
    Inventors: Cheryl A. Martin, John P. Czarnecki, Douglas Carpiaux, Casey Ketterhagen