Patents by Inventor Michael Truppo

Michael Truppo 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).

  • Vacuum cleaner hose having alternating height corrugations
    Patent number: 4756045
    Abstract: A vacuum cleaner hose comprises alternating height corrugations which break up airflow and reduce or eliminate whistle during vacuum cleaner operation. The hose likewise provides a high degree of flexibility, crush and kink resistance, and returnability back to its original shape. The hose may be formed of a single non-reinforced member by an extrusion blow-molding process. In one embodiment, the widths of the corrugations alternate with the heights.
    Type: Grant
    Filed: December 30, 1986
    Date of Patent: July 12, 1988
    Assignee: Action Technology
    Inventors: Leo Gans, Michael Truppo