Patents by Inventor John Webb Lawrence

John Webb Lawrence 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: 5817184
    Abstract: A cleaning apparatus capable of supplying on a substantially continuous basis an anhydrous agent and water to an area to be cleaned. The cleaning machine includes an inner enclosure disposed in an interior chamber of an outer enclosure. The outer enclosure is designed to enclose the interior chamber. Also, provided in the cleaning apparatus is a system for purging the interior chamber with dry air. The inner enclosure contains the anhydrous agent, which is typically baking soda. The inner enclosure further includes a system for distributing the anhydrous agent to a cleaning nozzle.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: October 6, 1998
    Inventor: John Webb Lawrence