Patents by Inventor Timothy T. Brendle

Timothy T. Brendle 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).

  • Electronic device for use as a teaching aid
    Patent number: 4083120
    Abstract: A teaching device having a base on which a program card is mounted. The base contains an electrical circuit having a plurality of count indicator lights and a further illuminated indicator. A rotary switch is mounted on the base and has a numeral display disc mounted thereon for displaying one of a series of numbers through a read-out opening in the base which is illuminated by the further illuminated indicator. The rotary switch also controls illumination of the count indicator lights based on the electrical circuit of the program card mounted on the base.
    Type: Grant
    Filed: September 24, 1976
    Date of Patent: April 11, 1978
    Inventor: Timothy T. Brendle