Patents by Inventor Arvid Ananthanarayanan

Arvid Ananthanarayanan 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).

  • Safety switch and associated methods
    Patent number: 10665412
    Abstract: A cable pull switch includes a polychotomous sensor configured to provide a reading of at least one of a plurality of values, the reading corresponding to a tension on a pull cable or a linear displacement of an end of a pull cable. A processor coupled to the polychotomous cable pull sensor configured to determine a rate of change of the value of the reading from the sensor and determine an occurrence of a cable pull event, the determination based on the determined rate of change of the value, and determine whether the rate of change of the value of an electrical resistance through the polychotomous cable pull sensor is below a threshold rate of change value, and adjust an upper pull threshold value to a new upper pull threshold value that is based on a present reading of the value of the electrical resistance through the strain gauge.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: May 26, 2020
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Andrew L. Tsang, Burt Sacherski, Steven Robert Tambeau, Arvid Ananthanarayanan, James Edward Dogul, Todd Bubar
  • SAFETY SWITCH AND ASSOCIATED METHODS
    Publication number: 20190244780
    Abstract: A cable pull switch includes a polychotomous sensor configured to provide a reading of at least one of a plurality of values, the reading corresponding to a tension on a pull cable or a linear displacement of an end of a pull cable. A processor coupled to the polychotomous cable pull sensor configured to determine a rate of change of the value of the reading from the sensor and determine an occurrence of a cable pull event, the determination based on the determined rate of change of the value, and determine whether the rate of change of the value of an electrical resistance through the polychotomous cable pull sensor is below a threshold rate of change value, and adjust an upper pull threshold value to a new upper pull threshold value that is based on a present reading of the value of the electrical resistance through the strain gauge.
    Type: Application
    Filed: April 16, 2019
    Publication date: August 8, 2019
    Inventors: ANDREW L. TSANG, BURT SACHERSKI, STEVEN ROBERT TAMBEAU, ARVID ANANTHANARAYANAN, JAMES EDWARD DOGUL, TODD BUBAR