Patents Represented by Attorney David L. David

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  • Vacuum cleaner upper hose assembly
    Patent number: 4856139
    Abstract: An upper hose assembly for an upright vacuum cleaner is arranged with external threads at one end for connection into the dirt collecting portion intake duct while the other end of the hose has mounted thereon a connector which allows for a snap-fit connection/disconnection from the fan discharge port of the vacuum cleaner. The connector is designed to provide a retrofit adaptation to an existing vacuum cleaner.
    Type: Grant
    Filed: February 1, 1989
    Date of Patent: August 15, 1989
    Assignee: Ryobi Motor Products Corp.
    Inventors: James A. Matthews, Louis A. Rotola, Jr.