Patents by Inventor Ray D. Hastings

Ray D. Hastings 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).

  • Event detection apparatus
    Patent number: 4528553
    Abstract: Circuitry for qualifying a series of randomly occurring alarm events to avoid erroneous indications. Alarm events occurring in a surveillance system or the like are counted over a selected time interval, and final alarm output is effected only if a selected 1+n number of events has been counted within the interval. Both the repetitive time intervals and the event number are variable in accordance with the exigencies of the alarm application.
    Type: Grant
    Filed: August 16, 1983
    Date of Patent: July 9, 1985
    Assignee: Conoco Inc.
    Inventors: Ray D. Hastings, Ernest W. Boyer