Patents Assigned to TDM Industries, Inc.
  • Patent number: 6581938
    Abstract: A seal apparatus including an elongated body formed of a resilient expandable material defining an interior chamber and having a longitudinal axis. The elongated body is capable of being rolled up on itself by rolling one of the first and second ends of the elongated body in a direction parallel to the longitudinal axis. At least one stem is attached to the elongated body and is in fluid communication with the interior chamber.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: June 24, 2003
    Assignee: TDM Industries, Inc.
    Inventor: Timothy D. McKenrick