Patents Represented by Law Firm Clark & Erbing LLP
  • Automatically-venting dispensing cap
    Patent number: 5871127
    Abstract: A dispensing cap including a rotary valve communicating with an external open-ended dispensing tube portion, the valve being configured to communicate, in a venting position, with a venting pathway and to communicate, in a dispensing position, with an internal dispensing tube portion, wherein the valve is configured to pass from a closed position through a venting position to a dispensing position.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: February 16, 1999
    Assignee: Duke University
    Inventors: Ronald F. Overaker, Brian C. Dodge, David L. Epstein