Patents by Inventor Ira L. Witthaus

Ira L. Witthaus 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).

  • Electric sensor package
    Patent number: 4360856
    Abstract: An electronic sensor package includes at least six sensor-amplifier circuits each adapted to be electrically connected to a different condition-responsive device and each electrically connected directly to a relay for energizing the relay, each of the relays being electrically connected to at least two of the sensor-amplifier circuits, whereby the number of relays to which the sensor amplifier circuits are connected is no more than half the number of sensor-amplifier circuits. The relays are electrically connected to a timing circuit electrically connected to signalling or controlling devices.
    Type: Grant
    Filed: January 8, 1981
    Date of Patent: November 23, 1982
    Inventor: Ira L. Witthaus