Patents by Inventor Milind H. Joshi

Milind H. Joshi 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).

  • Contact-input arrangement for power system devices
    Patent number: 8477517
    Abstract: A contact-input circuit for a power system device is described for processing a higher voltage signal from power system equipment or another power system device for use by a lower voltage circuit. The contact-input circuit generally includes a voltage threshold detection device adapted to allow current to flow therefrom when it detects that the higher voltage signal reaches a select threshold. An opto-isolator device, which is coupled to the voltage threshold detection device, provides a voltage signal suitable for use by the lower voltage circuit when the threshold detection device allows the current-flow through the opto-isolator.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: July 2, 2013
    Assignee: Schweitzer Engineering Laboratories Inc
    Inventor: Milind H. Joshi
  • CONTACT-INPUT ARRANGEMENT FOR POWER SYSTEM DEVICES
    Publication number: 20100265743
    Abstract: A contact-input circuit for a power system device is described for processing a higher voltage signal from power system equipment or another power system device for use by a lower voltage circuit. The contact-input circuit generally includes a voltage threshold detection device adapted to allow current to flow therefrom when it detects that the higher voltage signal reaches a select threshold. An opto-isolator device, which is coupled to the voltage threshold detection device, provides a voltage signal suitable for use by the lower voltage circuit when the threshold detection device allows the current-flow through the opto-isolator.
    Type: Application
    Filed: April 21, 2009
    Publication date: October 21, 2010
    Inventor: Milind H. Joshi