Patents by Inventor Henry M. Gannon

Henry M. Gannon 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).

  • Feedback circuit for high efficiency linear DC power supply
    Patent number: 5414340
    Abstract: A high efficiency, linear DC power supply circuit includes a pulse width modulator stage for reducing a higher DC source voltage to a lower DC operating voltage at high efficiency, an energy storage device, a linear voltage regulator, and a feedback circuit. The feedback circuit monitors the voltage across the linear voltage regulator and sends a frequent or continuous feedback signal to the pulse width modulator to maintain a relatively fixed voltage across the linear regulator regardless of nominal variations in source voltage, operating temperature, load current, noise, or other shifting parameters. By monitoring only the voltage across the linear regulator, a significant enhancement in performance of the power supply circuit is realized.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: May 9, 1995
    Inventor: Henry M. Gannon
  • Electric and pedal driven bicycle with solar charging
    Patent number: 5316101
    Abstract: The invention relates to an electric propulsion system for a multi-wheeled vehicle including though not limited to a bicycle. The preferred embodiment consists of a standard street bicycle with multi-speed transmission, plus an electrical propulsion system and a solar charging apparatus. This preferred embodiment is normally powered by a combination of motor and pedals, coupled such that either or both may provide power at any time.
    Type: Grant
    Filed: April 29, 1993
    Date of Patent: May 31, 1994
    Inventor: Henry M. Gannon
  • Electric and pedal driven bicycle with solar charging
    Patent number: 5237263
    Abstract: The invention relates to an electric propulsion system for a multi-wheeled vehicle including though not limited to a bicycle. The preferred embodiment consists of a standard street bicycle with multi-speed transmission, plus an electrical propulsion system and a solar charging apparatus. This preferred embodiment is normally powered by a combination of motor and pedals, coupled such that either or both may provide power at any time.
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: August 17, 1993
    Inventor: Henry M. Gannon