Patents by Inventor Sandra A. MacKay

Sandra A. MacKay 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).

  • Power toothbrush with a modulated drive signal
    Patent number: 9744012
    Abstract: A power toothbrush includes a handle portion having a drive system therein for moving a set of bristles with a frequency and amplitude to produce clinically effective cleaning results. A modulation system modulates the drive signal by changing the frequency or duty cycle of the drive signal with a frequency varying modulation signal. The modulation frequency will increase from the start to the conclusion of a brushing event for cognitive stimulation while the modulation frequency will decrease between the start and conclusion of a brushing event for cognitive relaxation.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: August 29, 2017
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Thomas Jackson Sayles, Sandra Mackay
  • POWER TOOTHBRUSH WITH A MODULATED DRIVE SIGNAL
    Publication number: 20170000593
    Abstract: A power toothbrush includes a handle portion having a drive system therein for moving a set of bristles with a frequency and amplitude to produce clinically effective cleaning results. A modulation system modulates the drive signal by changing the frequency or duty cycle of the drive signal with a frequency varying modulation signal. The modulation frequency will increase from the start to the conclusion of a brushing event for cognitive stimulation while the modulation frequency will decrease between the start and conclusion of a brushing event for cognitive relaxation.
    Type: Application
    Filed: December 5, 2014
    Publication date: January 5, 2017
    Inventors: THOMAS JACKSON SAYLES, SANDRA MACKAY
  • Knitting/crochet needle caddy with integrated tape measure
    Patent number: D500919
    Type: Grant
    Filed: October 1, 2003
    Date of Patent: January 18, 2005
    Inventor: Sandra A. MacKay