Leviton Manufacturing Company, Inc.

Renjith Koshy Mathew

Michael Kamor

Adam Kevelos

Alfred J Lombardi

Michael Ostrovsky

Yun Wu

Alek Aronov

Ronald H Jansen

Paul C Duckworth

Kent D Pilcher

Gordon J Stannis

Selin Glickman

Walter Ancipiuk

Cheryl Samartano

Grant Carmichael

Paul Soccoli

Yun (Sandy) Wu

Walter Ancipuk

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.

Ground fault detector

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.

Electrical load controller having a frame with an integrally formed backlightable indicator region

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.

Frame having a single actuator opening shared by a toggle actuator and slidable dimmer actuator

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.

Dimmer switch having dimmer actuator operable for actuating an air-gap switch

Load control with sensor and removable front panel

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.

Electrical device controller having a switch and a thumbwheel dimmer

Electrical device

Toggle wheel dimmer switch

Growing community of inventors

Glen Oaks, NY, United States of America

Renjith Koshy Mathew