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).
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Patent number: 10641812Abstract: 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: GrantFiled: August 30, 2019Date of Patent: May 5, 2020Assignee: Leviton Manufacturing Company, Inc.Inventors: Michael Ostrovsky, Alek Aronov, Michael Kamor, Renjith Mathew
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Publication number: 20190383871Abstract: 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: ApplicationFiled: August 30, 2019Publication date: December 19, 2019Applicant: Leviton Manufacturing Company, Inc.Inventors: Michael OSTROVSKY, Alek Aronov, Michael Kamor, Renjith Mathew
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Patent number: 10401413Abstract: 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: GrantFiled: September 11, 2017Date of Patent: September 3, 2019Assignee: Leviton Manufacturing Company, Inc.Inventors: Michael Ostrovsky, Alek Aronov, Michael Kamor, Renjith Mathew
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Patent number: 10062528Abstract: 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: GrantFiled: September 15, 2017Date of Patent: August 28, 2018Assignee: Leviton Manufacturing Co., Inc.Inventors: Adam Kevelos, Renjith Mathew
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Patent number: 9916946Abstract: 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: GrantFiled: November 2, 2016Date of Patent: March 13, 2018Assignee: Leviton Manufacturing Co., Inc.Inventors: Renjith Mathew, Ronald Jansen, Adam Kevelos, Alfred Lombardi
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Publication number: 20180024179Abstract: 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: ApplicationFiled: September 11, 2017Publication date: January 25, 2018Applicant: Leviton Manufacturing Company, Inc.Inventors: Michael OSTROVSKY, Alek ARONOV, Michael KAMOR, Renjith MATHEW
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Publication number: 20180005781Abstract: 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: ApplicationFiled: September 15, 2017Publication date: January 4, 2018Applicant: Leviton Manufacturing Co., Inc.Inventors: Adam KEVELOS, Renjith Mathew
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Patent number: 9767973Abstract: 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: GrantFiled: April 26, 2016Date of Patent: September 19, 2017Assignee: Leviton Manufacturing Co., Inc.Inventors: Adam Kevelos, Renjith Mathew
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Patent number: 9759758Abstract: 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: GrantFiled: April 17, 2015Date of Patent: September 12, 2017Assignee: Leviton Manufacturing Co., Inc.Inventors: Michael Ostrovsky, Alek Aronov, Michael Kamor, Renjith Mathew
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Publication number: 20160268074Abstract: 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: ApplicationFiled: April 26, 2016Publication date: September 15, 2016Applicant: Leviton Manufacturing Co., Inc.Inventors: Adam KEVELOS, Renjith Mathew
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Patent number: 9398667Abstract: 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: GrantFiled: August 8, 2014Date of Patent: July 19, 2016Assignee: LEVITON MANUFACTURING CO., INC.Inventors: Adam Kevelos, Ronald Jansen, Renjith Mathew, Michael Kamor
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Patent number: 9329607Abstract: 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: GrantFiled: August 8, 2014Date of Patent: May 3, 2016Assignee: Leviton Manufacturing Co., Inc.Inventors: Adam Kevelos, Renjith Mathew
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Publication number: 20160041569Abstract: 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: ApplicationFiled: August 8, 2014Publication date: February 11, 2016Applicant: LEVITON MANUFACTURING CO., INC.Inventors: Adam KEVELOS, Renjith Mathew
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Publication number: 20160044764Abstract: 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: ApplicationFiled: August 8, 2014Publication date: February 11, 2016Applicant: LEVITON MANUFACTURING CO., INC.Inventors: Adam KEVELOS, Ronald JANSEN, Renjith Mathew, Michael KAMOR
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Publication number: 20150309105Abstract: 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: ApplicationFiled: April 17, 2015Publication date: October 29, 2015Applicant: Leviton Manufacturing CompanyInventors: Michael OSTROVSKY, Alek ARONOV, Michael KAMOR, Renjith MATHEW
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Publication number: 20150309103Abstract: 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: ApplicationFiled: April 25, 2014Publication date: October 29, 2015Applicant: Leviton Manufacturing CompanyInventors: Michael Ostrovsky, Alek Aronov, Michael Kamor, Renjith Mathew
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Patent number: 8624142Abstract: 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: GrantFiled: February 24, 2012Date of Patent: January 7, 2014Assignee: Leviton Manufacturing Co., Inc.Inventors: Renjith Mathew, Walter Ancipiuk, Yun Wu, Alfred J. Lombardi
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Publication number: 20120152707Abstract: 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: ApplicationFiled: February 24, 2012Publication date: June 21, 2012Applicant: LEVITON MANUFACTURING CO., INC.Inventors: Renjith Mathew, Walter Ancipiuk, Yun Wu, Alfred J. Lombardi
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Patent number: 8124898Abstract: 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: GrantFiled: January 15, 2009Date of Patent: February 28, 2012Assignee: Leviton Manufacturing Co., Inc.Inventors: Renjith Mathew, Walter Ancipiuk, Yun Wu, Alfred J. Lombardi
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Patent number: D652392Type: GrantFiled: May 25, 2011Date of Patent: January 17, 2012Assignee: Leviton Manufacturing Co., Inc.Inventors: Paul Duckworth, Gordon Stannis, Kent Pilcher, Grant Carmichael, Renjith Mathew, Selin Glickman, Cheryl Samartano