Patents by Inventor Jose L. Serrano

Jose L. Serrano 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).

  • Devices used for varying the resistance of electrical circuits and the conduction of current in electrical circuits
    Patent number: 4692805
    Abstract: A device forming a potentiometer for varying the resistance of an electrical circuit, and a switch for changing the state of current conduction in the circuit. The switch has a casing fastened to the potentiometer, and the potentiometer has a casing and a plate joined together. The device has a rotatable component having a central protuberance extending through the plate. A first discoidal element is carried by the rotatable component and has a metallic cursor. A resistance track and a metallic collector are stationarily mounted on the plate. The cursor is continuously and simultaneously in contact with the resistance track and the collector. A second discoidal element is mounted in the switch casing for engagement by the protuberance and is releasably coupled to the rotatable component when the switch is coupled to the potentiometer. A fixed contact is mounted on the switch casing and a movable contactor arm is movable mounted on the switch casing.
    Type: Grant
    Filed: January 23, 1985
    Date of Patent: September 8, 1987
    Assignee: Piher Navarra, S.A.
    Inventors: Carlos Lopez, Jose L. Serrano