Patents by Inventor Ron Dijk

Ron Dijk 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).

  • Device and process for monitoring a switch position
    Patent number: 5585678
    Abstract: A device for monitoring the switch position of a switch including an auxiliary voltage source, which is connected to the switch, a device for converting the switch position into an electrical signal, a device for transmitting the electrical signal and a device for evaluating the transmitted information. The converting device uses a pulse-duration modulation, the duty cycle of which becomes higher as the voltage U.sub.0 of the auxiliary voltage source becomes smaller. This enables the monitoring device to be used for different auxiliary voltages, without any need for adaptation.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: December 17, 1996
    Assignee: ABB Management AG
    Inventors: Ron Dijk, Markus Meng