Patents by Inventor Paul W. Chrenka

Paul W. Chrenka 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).

  • Method for making fiber-filled bolstered cushion
    Patent number: 5571465
    Abstract: Method and apparatus for quickly, and substantially uniformly, heating and cooling a bed of polymeric fibers having high melting point and low melting point fibers therein for softening the low melting point fibers and bonding them to the high melting point fibers to form a seat cushion. Hot and cool gases are flowed through the bed of fibers to effect the heating/cooling.
    Type: Grant
    Filed: December 18, 1995
    Date of Patent: November 5, 1996
    Assignee: General Motors Corporation
    Inventors: Prem P. Gill, Paul W. Chrenka
  • Method and apparatus for making fiber-filled cushion
    Patent number: 5569425
    Abstract: Method and apparatus for quickly, and substantially uniformly, heating and cooling a bed of polymeric fibers having high melting point and low melting point fibers therein for softening the low melting point fibers and bonding them to the high melting point fibers to form a seat cushion. Hot and cool gases are flowed through the bed of fibers via a plurality of ventilator spikes extending into the fibers in the mold cavity to effect substantially uniform gas flow rates through the fibers for quick more uniform heating/cooling of the fibers.
    Type: Grant
    Filed: December 18, 1995
    Date of Patent: October 29, 1996
    Assignee: General Motors Corporation
    Inventors: Prem P. Gill, Paul W. Chrenka, David W. Whitehead