Patents by Inventor Daniel L. Koltak

Daniel L. Koltak 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).

  • Cleaning apparatus
    Patent number: 4910828
    Abstract: A cleaning apparatus which is of a compact construction to facilitate easy manipulation and portability includes a housing enclosing a fluid pump and a vacuum fan and mounting upon opposite sides a recovery tank and a stowage panel. The stowage panel is adapted to stow the flexible wand having a nozzle when not in use. Also, the high voltage motor driving the vacuum pump is adapted to also act as half of a transformer in order to pick off the lower voltage needed for the low voltage motor driving the fluid pump.
    Type: Grant
    Filed: June 30, 1988
    Date of Patent: March 27, 1990
    Assignee: Bissell Inc.
    Inventors: Michael R. Blase, Henry J. Rosendall, Daniel L. Koltak, David E. McDowell