Patents by Inventor John T. Merrick

John T. Merrick 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).

  • Patent number: 4833752
    Abstract: A vacuum mop head having a scrubbing pad, a front squeegee in a front vacuum pickup slot, and a rear squeegee in a rear vacuum pickup slot has a vacuum outlet divided effectively between the two pickup slots. Side walls of a vacuum passageway extend downward from the top of the mop head and are covered by a plate that supports a liquid detergent dispensing system and encloses the vacuum passageway from the vacuum outlet to the front vacuum pickup. The upper half of the vacuum outlet evacuates the vacuum passageway to the front vacuum pickup, and the lower half of the vacuum outlet directly evacuates the rear vacuum pickup.
    Type: Grant
    Filed: August 8, 1988
    Date of Patent: May 30, 1989
    Inventor: John T. Merrick