Patents by Inventor Renjith Mathew

Renjith Mathew 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).

  • Patent number: 10641812
    Abstract: An apparatus includes an interruption circuit in a power delivery path, and a fault detection circuit configured to provide a fault signal to selectively cause the interruption circuit to interrupt power delivery, wherein the fault detection circuit includes a fault detection integrated circuit and a sensing coil configured to sense a differential current between a phase conductive path and a neutral conductive path in the power delivery path. A processor is configured to selectively control a fault simulation circuit to simulate a fault in the power delivery path, detect a response of the fault detection circuit to the simulated fault, and determine if the response of the fault detection circuit is an expected response. The processor provides an override signal to the interruption circuit to prevent the interruption circuit from receiving a fault signal from the fault detection circuit during, and for a predetermined time after, the simulated fault.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: May 5, 2020
    Assignee: Leviton Manufacturing Company, Inc.
    Inventors: Michael Ostrovsky, Alek Aronov, Michael Kamor, Renjith Mathew
  • Publication number: 20190383871
    Abstract: An apparatus includes an interruption circuit in a power delivery path, and a fault detection circuit configured to provide a fault signal to selectively cause the interruption circuit to interrupt power delivery, wherein the fault detection circuit includes a fault detection integrated circuit and a sensing coil configured to sense a differential current between a phase conductive path and a neutral conductive path in the power delivery path. A processor is configured to selectively control a fault simulation circuit to simulate a fault in the power delivery path, detect a response of the fault detection circuit to the simulated fault, and determine if the response of the fault detection circuit is an expected response. The processor provides an override signal to the interruption circuit to prevent the interruption circuit from receiving a fault signal from the fault detection circuit during, and for a predetermined time after, the simulated fault.
    Type: Application
    Filed: August 30, 2019
    Publication date: December 19, 2019
    Applicant: Leviton Manufacturing Company, Inc.
    Inventors: Michael OSTROVSKY, Alek Aronov, Michael Kamor, Renjith Mathew
  • Patent number: 10401413
    Abstract: An apparatus includes an interruption circuit in a power delivery path, and a fault detection circuit configured to provide a fault signal to selectively cause the interruption circuit to interrupt power delivery, wherein the fault detection circuit includes a fault detection integrated circuit and a sensing coil configured to sense a differential current between a phase conductive path and a neutral conductive path in the power delivery path. A processor is configured to selectively control a fault simulation circuit to simulate a fault in the power delivery path, detect a response of the fault detection circuit to the simulated fault, and determine if the response of the fault detection circuit is an expected response. The processor provides an override signal to the interruption circuit to prevent the interruption circuit from receiving a fault signal from the fault detection circuit during, and for a predetermined time after, the simulated fault.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: September 3, 2019
    Assignee: Leviton Manufacturing Company, Inc.
    Inventors: Michael Ostrovsky, Alek Aronov, Michael Kamor, Renjith Mathew
  • Patent number: 10062528
    Abstract: An electrical load controller includes an electrical switching device and an actuator assembly having at least one user actuator for use in turning power on and off to the load and for use in adjustably controlling the level of power to the load. A frame attached to the actuator includes an integrally formed backlightable indicator region having an outer continuous solid surface. Light from an illumination assembly related to the level of power to the load is directable onto a portion of an inner surface of the backlightable indicator region, transmittable through the backlightable region from the inner surface to the outer surface, emittable from a portion of the outer surface, and observable by the user.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: August 28, 2018
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Adam Kevelos, Renjith Mathew
  • Patent number: 9916946
    Abstract: A dimmer switch includes a housing having a frame having a single actuator opening therethrough. The opening has first and second portions. A controllably conductive device is disposed in the housing for adjustably controlling electrical power to a load. A pivotable toggle actuator is accessible through the first portion of the single actuator opening and pivotable between a first and second positions by a user. A slidable dimmer actuator is accessible through the second portion of the single actuator opening. The slidable dimmer actuator is slidable linearly within the second portion of the single actuator opening anywhere between first and second positions by a user. The pivotable toggle actuator is operable for controlling the controllably conductive device to turn on and off power to the load, and the slidable dimmer actuator is operable for controlling the controllably conductive device to adjustably control the level of power to the load.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: March 13, 2018
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Renjith Mathew, Ronald Jansen, Adam Kevelos, Alfred Lombardi
  • Publication number: 20180024179
    Abstract: An apparatus includes an interruption circuit in a power delivery path, and a fault detection circuit configured to provide a fault signal to selectively cause the interruption circuit to interrupt power delivery, wherein the fault detection circuit includes a fault detection integrated circuit and a sensing coil configured to sense a differential current between a phase conductive path and a neutral conductive path in the power delivery path. A processor is configured to selectively control a fault simulation circuit to simulate a fault in the power delivery path, detect a response of the fault detection circuit to the simulated fault, and determine if the response of the fault detection circuit is an expected response. The processor provides an override signal to the interruption circuit to prevent the interruption circuit from receiving a fault signal from the fault detection circuit during, and for a predetermined time after, the simulated fault.
    Type: Application
    Filed: September 11, 2017
    Publication date: January 25, 2018
    Applicant: Leviton Manufacturing Company, Inc.
    Inventors: Michael OSTROVSKY, Alek ARONOV, Michael KAMOR, Renjith MATHEW
  • Publication number: 20180005781
    Abstract: An electrical load controller includes an electrical switching device and an actuator assembly having at least one user actuator for use in turning power on and off to the load and for use in adjustably controlling the level of power to the load. A frame attached to the actuator includes an integrally formed backlightable indicator region having an outer continuous solid surface. Light from an illumination assembly related to the level of power to the load is directable onto a portion of an inner surface of the backlightable indicator region, transmittable through the backlightable region from the inner surface to the outer surface, emittable from a portion of the outer surface, and observable by the user.
    Type: Application
    Filed: September 15, 2017
    Publication date: January 4, 2018
    Applicant: Leviton Manufacturing Co., Inc.
    Inventors: Adam KEVELOS, Renjith Mathew
  • Patent number: 9767973
    Abstract: An electrical load controller includes an electrical switching device and an actuator assembly having at least one user actuator for use in turning power on and off to the load and for use in adjustably controlling the level of power to the load. A frame attached to the actuator includes an integrally formed backlightable indicator region having an outer continuous solid surface. Light from an illumination assembly related to the level of power to the load is directable onto a portion of an inner surface of the backlightable indicator region, transmittable through the backlightable region from the inner surface to the outer surface, emittable from a portion of the outer surface, and observable by the user.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: September 19, 2017
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Adam Kevelos, Renjith Mathew
  • Patent number: 9759758
    Abstract: An apparatus includes an interruption circuit in a power delivery path, and a fault detection circuit configured to provide a fault signal to selectively cause the interruption circuit to interrupt power delivery, wherein the fault detection circuit includes a fault detection integrated circuit and a sensing coil configured to sense a differential current between a phase conductive path and a neutral conductive path in the power delivery path. A processor is configured to selectively control a fault simulation circuit to simulate a fault in the power delivery path, detect a response of the fault detection circuit to the simulated fault, and determine if the response of the fault detection circuit is an expected response. The processor provides an override signal to the interruption circuit to prevent the interruption circuit from receiving a fault signal from the fault detection circuit during, and for a predetermined time after, the simulated fault.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: September 12, 2017
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Michael Ostrovsky, Alek Aronov, Michael Kamor, Renjith Mathew
  • Publication number: 20160268074
    Abstract: An electrical load controller includes an electrical switching device and an actuator assembly having at least one user actuator for use in turning power on and off to the load and for use in adjustably controlling the level of power to the load. A frame attached to the actuator includes an integrally formed backlightable indicator region having an outer continuous solid surface. Light from an illumination assembly related to the level of power to the load is directable onto a portion of an inner surface of the backlightable indicator region, transmittable through the backlightable region from the inner surface to the outer surface, emittable from a portion of the outer surface, and observable by the user.
    Type: Application
    Filed: April 26, 2016
    Publication date: September 15, 2016
    Applicant: Leviton Manufacturing Co., Inc.
    Inventors: Adam KEVELOS, Renjith Mathew
  • Patent number: 9398667
    Abstract: A dimmer switch includes an air-gap switch for coupling to a power source, a power semiconductor switch electronically controlling power to a load connected in series with the air-gap switch, a dimmer module connected to the power semiconductor switch for coupling to the load to deliver an adjustable level of power to the load, and a dimmer actuator. The dimmer actuator is movable between an operational position and a disconnected position wherein the dimmer actuator is configured to act as a single control mechanism for selectively engaging either the dimmer module to adjust the level of power delivered to the load when in the operational position or the air-gap switch when in the disconnected position.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: July 19, 2016
    Assignee: LEVITON MANUFACTURING CO., INC.
    Inventors: Adam Kevelos, Ronald Jansen, Renjith Mathew, Michael Kamor
  • Patent number: 9329607
    Abstract: An electrical load controller includes an electrical switching device and an actuator assembly having at least one user actuator for use in turning power on and off to the load and for use in adjustably controlling the level of power to the load. A frame attached to the actuator includes an integrally formed backlightable indicator region having an outer continuous solid surface. Light from an illumination assembly related to the level of power to the load is directable onto a portion of an inner surface of the backlightable indicator region, transmittable through the backlightable region from the inner surface to the outer surface, emittable from a portion of the outer surface, and observable by the user.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: May 3, 2016
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Adam Kevelos, Renjith Mathew
  • Publication number: 20160041569
    Abstract: An electrical load controller includes an electrical switching device and an actuator assembly having at least one user actuator for use in turning power on and off to the load and for use in adjustably controlling the level of power to the load. A frame attached to the actuator includes an integrally formed backlightable indicator region having an outer continuous solid surface. Light from an illumination assembly related to the level of power to the load is directable onto a portion of an inner surface of the backlightable indicator region, transmittable through the backlightable region from the inner surface to the outer surface, emittable from a portion of the outer surface, and observable by the user.
    Type: Application
    Filed: August 8, 2014
    Publication date: February 11, 2016
    Applicant: LEVITON MANUFACTURING CO., INC.
    Inventors: Adam KEVELOS, Renjith Mathew
  • Publication number: 20160044764
    Abstract: A dimmer switch includes an air-gap switch for coupling to a power source, a power semiconductor switch electronically controlling power to a load connected in series with the air-gap switch, a dimmer module connected to the power semiconductor switch for coupling to the load to deliver an adjustable level of power to the load, and a dimmer actuator. The dimmer actuator is movable between an operational position and a disconnected position wherein the dimmer actuator is configured to act as a single control mechanism for selectively engaging either the dimmer module to adjust the level of power delivered to the load when in the operational position or the air-gap switch when in the disconnected position.
    Type: Application
    Filed: August 8, 2014
    Publication date: February 11, 2016
    Applicant: LEVITON MANUFACTURING CO., INC.
    Inventors: Adam KEVELOS, Ronald JANSEN, Renjith Mathew, Michael KAMOR
  • Publication number: 20150309105
    Abstract: An apparatus includes an interruption circuit in a power delivery path, and a fault detection circuit configured to provide a fault signal to selectively cause the interruption circuit to interrupt power delivery, wherein the fault detection circuit includes a fault detection integrated circuit and a sensing coil configured to sense a differential current between a phase conductive path and a neutral conductive path in the power delivery path. A processor is configured to selectively control a fault simulation circuit to simulate a fault in the power delivery path, detect a response of the fault detection circuit to the simulated fault, and determine if the response of the fault detection circuit is an expected response. The processor provides an override signal to the interruption circuit to prevent the interruption circuit from receiving a fault signal from the fault detection circuit during, and for a predetermined time after, the simulated fault.
    Type: Application
    Filed: April 17, 2015
    Publication date: October 29, 2015
    Applicant: Leviton Manufacturing Company
    Inventors: Michael OSTROVSKY, Alek ARONOV, Michael KAMOR, Renjith MATHEW
  • Publication number: 20150309103
    Abstract: An apparatus includes an interruption circuit in a power delivery path, and a fault detection circuit configured to provide a fault signal to selectively cause the interruption circuit to interrupt power delivery, wherein the fault detection circuit includes a fault detection integrated circuit (IC) and a sensing coil configured to sense a differential current between a phase conductive path and a neutral conductive path in the power delivery path. A processor is configured to selectively control a fault simulation circuit to simulate a fault in the power delivery path, detect a response of the fault detection circuit to the simulated fault, and determine if the response of the fault detection circuit is an expected response. The processor provides an override signal to the interruption circuit to prevent the interruption circuit from receiving a fault signal from the fault detection circuit during, and for a predetermined time after, the simulated fault.
    Type: Application
    Filed: April 25, 2014
    Publication date: October 29, 2015
    Applicant: Leviton Manufacturing Company
    Inventors: Michael Ostrovsky, Alek Aronov, Michael Kamor, Renjith Mathew
  • Patent number: 8624142
    Abstract: An electrical device controller is provided for controlling power to a load. The controller includes a housing having an open face and a plate having a unitary aperture secured to the housing and disposed over the open face. The controller further includes an electrical power controller component positioned within the housing for coupling to a power source and a load, a first actuator coupled to the electrical component, and an adjacent second actuator coupled to the electrical component. The first actuator has a movable user operable portion that is user accessible via the unitary aperture for controlling power ON/OFF to the load. The second actuator has a movable user operable portion that is user accessible via the unitary aperture for adjusting magnitude of power delivered to the load. The movement and position of the respective user operable portions of the first and second actuators are mutually independent.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: January 7, 2014
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Renjith Mathew, Walter Ancipiuk, Yun Wu, Alfred J. Lombardi
  • Publication number: 20120152707
    Abstract: An electrical device controller is provided for controlling power to a load. The controller includes a housing having an open face and a plate having a unitary aperture secured to the housing and disposed over the open face. The controller further includes an electrical power controller component positioned within the housing for coupling to a power source and a load, a first actuator coupled to the electrical component, and an adjacent second actuator coupled to the electrical component. The first actuator has a movable user operable portion that is user accessible via the unitary aperture for controlling power ON/OFF to the load. The second actuator has a movable user operable portion that is user accessible via the unitary aperture for adjusting magnitude of power delivered to the load. The movement and position of the respective user operable portions of the first and second actuators are mutually independent.
    Type: Application
    Filed: February 24, 2012
    Publication date: June 21, 2012
    Applicant: LEVITON MANUFACTURING CO., INC.
    Inventors: Renjith Mathew, Walter Ancipiuk, Yun Wu, Alfred J. Lombardi
  • Patent number: 8124898
    Abstract: An electrical device controller is provided for controlling power to a load. The controller includes a housing having an open face and a plate having a unitary aperture secured to the housing and disposed over the open face. The controller further includes an electrical power controller component positioned within the housing for coupling to a power source and a load, a first actuator coupled to the electrical component, and an adjacent second actuator coupled to the electrical component. The first actuator has a movable user operable portion that is user accessible via the unitary aperture for controlling power ON/OFF to the load. The second actuator has a movable user operable portion that is user accessible via the unitary aperture for adjusting magnitude of power delivered to the load. The movement and position of the respective user operable portions of the first and second actuators are mutually independent.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: February 28, 2012
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Renjith Mathew, Walter Ancipiuk, Yun Wu, Alfred J. Lombardi
  • Patent number: D652392
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: January 17, 2012
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Paul Duckworth, Gordon Stannis, Kent Pilcher, Grant Carmichael, Renjith Mathew, Selin Glickman, Cheryl Samartano