Patents by Inventor Douglas Harry Green

Douglas Harry Green 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).

  • Plural sensor monitoring and display device
    Patent number: 4092642
    Abstract: A monitoring device for monitoring the outputs of a plurality of sensors and displaying appropriate information. The device has a plurality of input circuits for connection to the plurality of sensors. A scanning means is arranged to sequentially scan the input circuits to detect the presence of any activated sensor or sensors. A plurality of display devices sequentially display information corresponding to any activated sensor or sensors. The device also includes an integrity circuit which inhibits the actuation of the display devices for a predetermined period following detection of an activated sensor, whereby transient or random noise signals received by the input circuits are ineffective to activate the display devices.
    Type: Grant
    Filed: October 22, 1976
    Date of Patent: May 30, 1978
    Assignee: Delphic Limited
    Inventors: Douglas Harry Green, Joseph Pickup