Patents by Inventor Carol Hauge

Carol Hauge 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: 4961246
    Abstract: A vacuum cleaning device includes a cleaning cart designed for use by janitorial service workers. The cleaning cart includes a plurality of compartments formed in an open upper portion of a generally rectangular housing for storage of cleaning supplies and utensils. The cart also includes a trash receptacle for use by janitorial service workers when emptying trash cans. A pair of vacuum motors located in a lower portion of the housing are connected by conduits to a squeegee assembly suspended beneath the housing. The motors are of the type convertible between wet and dry operation. The vacuum motors are powered by a plurality of rechargeable batteries within the housing. The squeegee assembly is selectively adjustable by an elongated rod extending through the housing, and utilizes replaceable cartridges to renew the wiping elements.
    Type: Grant
    Filed: March 29, 1989
    Date of Patent: October 9, 1990
    Inventors: Ronald Hauge, Carol Hauge