Patents by Inventor Polly Firth

Polly Firth 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).

  • Beverage can with disc
    Patent number: 8973777
    Abstract: A beverage can (1) having a base (10) defining a re-entrant bead (17) in which a resilient disc (50) is held captive. The maximum dimension of the disc (50) is designed to be larger than the internal diameter of the re-entrant bead (17) and thus, when the resilient disc (50) is fitted into the re-entrant bead (17), the disc (50) adopts a concave, domed shape. The degree of doming can accommodate any variance between the dimensions of the disc (50) and that of the reformed base (10) of the can (1). One or more drainage ports may be provided on the periphery of the resilient disc (50) so that any liquid trapped between the surfaces of the base (10) and the resilient disc (50) may drain.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: March 10, 2015
    Assignee: Crown Packaging Technology, Inc.
    Inventors: Christopher Ramsey, Polly Firth, Andrew Phillips
  • BEVERAGE CAN WITH DISC
    Publication number: 20130001230
    Abstract: A beverage can (1) having a base (10) defining a re-entrant bead (17) in which a resilient disc (50) is held captive. The maximum dimension of the disc (50) is designed to be larger than the internal diameter of the re-entrant bead (17) and thus, when the resilient disc (50) is fitted into the re-entrant bead (17), the disc (50) adopts a concave, domed shape. The degree of doming can accommodate any variance between the dimensions of the disc (50) and that of the reformed base (10) of the can (1). One or more drainage ports may be provided on the periphery of the resilient disc (50) so that any liquid trapped between the surfaces of the base (10) and the resilient disc (50) may drain.
    Type: Application
    Filed: January 12, 2011
    Publication date: January 3, 2013
    Applicant: Crown Packaging Technology, Inc
    Inventors: Christopher Ramsey, Polly Firth, Andrew Phillips