Patents by Inventor Michael Herrett

Michael Herrett 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
    Patent number: 8607408
    Abstract: In a vacuum cleaner (1) particulate matter (32) accumulates on a counter-weighted flap (4). When the weight of the particulate matter (32) exceeds the effect of the counterweight (15) and the effect of any air-pressure differential across the flap (4), the flap opens and voids particulate matter (32) from within the vacuum cleaner (1).
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: December 17, 2013
    Assignee: Uneeda Vac (Australia) Pty Ltd
    Inventor: Michael Herrett
  • VACUUM CLEANER
    Publication number: 20110078873
    Abstract: In a vacuum cleaner (1) particulate matter (32) accumulates on a counter-weighted flap (4). When the weight of the particulate matter (32) exceeds the effect of the counterweight (15) and the effect of any air-pressure differential across the flap (4), the flap opens and voids particulate matter (32) from within the vacuum cleaner (1).
    Type: Application
    Filed: October 8, 2009
    Publication date: April 7, 2011
    Inventor: Michael Herrett