Patents by Inventor Robert W. Whitney

Robert W. Whitney 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 a tamper-evident, differential pressure-thermoformed lidded plastic container
    Patent number: 4893452
    Abstract: A container is provided in the form of a cup-like container body with a round mouth closed by a lid which becomes removably replaceable upon tearing away of a circumferentially extending tear strip which initially surrounds the mouth rim of the container body as a radially outer, integral part of the lid flange. As the lid is differential pressure-thermoformed, its radially outer region is formed into a generally inverted U-shaped structure which near the juncture of the base and radially outer leg of the inverted U, is provided, within the channel, with an inverted V-shaped notch of substantially diminished wall thickness to provide a line of weakness which preferably extends nearly fully around the circumference of the lid, but for at an angularly short tear-starting site.
    Type: Grant
    Filed: November 15, 1988
    Date of Patent: January 16, 1990
    Assignee: CPC-Rexel, Inc.
    Inventors: Robert Bruce, Robert W. Whitney
  • Tamper-evident, differential pressure-thermoformed lidded plastic container
    Patent number: 4836407
    Abstract: A container is provided in the form of a cup-like container body with a round mouth closed by a lid which becomes removably replaceable upon tearing away of a circumferentially extending tear strip which initially surrounds the mouth rim of the container body as a radially outer, integral part of the lid flange. As the lid is differential pressure-thermoformed, its radially outer region is formed into a generally inverted U-shaped structure which near the juncture of the base and radially outer leg of the inverted U, is provided, within the channel, with an inverted V-shaped notch of substantially diminished wall thickness to provide a line of weakness which preferably extends nearly fully around the circumference of the lid, but for at an angularly short tear-starting site.
    Type: Grant
    Filed: August 4, 1987
    Date of Patent: June 6, 1989
    Assignee: CPC-Rexcel, Inc.
    Inventors: Robert Bruce, Robert W. Whitney
  • Meat pumping process
    Patent number: 4164589
    Abstract: A meat pumping process employing a readily dispersible, soy protein isolate which is non-gellable upon heating and which has a polar lipid material on the surface thereof.
    Type: Grant
    Filed: September 5, 1978
    Date of Patent: August 14, 1979
    Assignee: Central Soya Company, Inc.
    Inventors: Victor V. Kadane, Edwin W. Meyer, Robert W. Whitney