Patents by Inventor Frederick C. Frost

Frederick C. Frost 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).

  • Disposal Unit
    Patent number: 5599421
    Abstract: A disposal unit for sanitary towels comprises a housing (100) which supports a bag (1) for receiving the used towels. A door (4) is mounted to the housing, in use the door being opened for access to the bag. The unit includes a heat sealing device (8) operable when the door is in the closed position to seal hermetically the mouth of the bag. The door may be pivotally mounted at its lower edge to the housing in which case the means for supporting the bag are arranged to support the bag with the mouth of the bag located towards the top of the door. A control circuit may activate the heat sealing device for a predetermined period of time and also activate a solenoid which locks the door closed.
    Type: Grant
    Filed: August 10, 1994
    Date of Patent: February 4, 1997
    Assignee: F C Frost Limited
    Inventors: Frederick C. Frost, Edward T. Williams, Peter Saunders