Patents by Inventor Roger M. Bradley
Roger M. Bradley 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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Publication number: 20090046406Abstract: An overvoltage device that is formed from a MOV device that is coupled in parallel with a spark gap. This device is coupled upstream from electronic components to protect these components from damage. For example, in one embodiment, the overvoltage device is coupled to a fault circuit interrupter such as a GFCI, across the phase and neutral lines to protect components of the GFCI from an overvoltage condition. In one embodiment the overvoltage device is formed as an MOV physically coupled to a spark gap wherein the MOV and the spark gap are electrically coupled across the phase line and the neutral line in parallel.Type: ApplicationFiled: August 15, 2007Publication date: February 19, 2009Applicant: LEVITON MANUFACTURING COMPANY INC.Inventors: David Y. Chan, Roger M. Bradley, John J. Power
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Publication number: 20090040667Abstract: Resettable circuit interrupting devices having self-test and non-resettable or limited resettable power interrupting systems are provided. The permanent power interrupting system activates when a circuit interrupting device is no longer capable of operating in accordance with applicable standards governing such devices or the device is no longer capable of operating in accordance with its design characteristics.Type: ApplicationFiled: May 9, 2008Publication date: February 12, 2009Applicant: LEVITON MANUFACTURING COMPANY, INC.Inventors: Nicholas L. DiSALVO, Ross MERNYK, Roger M. BRADLEY, Stephen STEWART, Frantz GERMAIN, Armando CALIXTO
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Patent number: 7436639Abstract: A compact module with a pair of transformers and a double pole single throw relay (DPST) mounted onto a housing to create a self contained assembly for installation in a ground fault circuit interrupter (GFCI) as a unit. The first transformer has a core and is electrically coupled to a first set of terminals for connection to a printed circuit board (PCB). The second transformer is located adjacent to and magnetically coupled to the core of the first transformer and is electrically coupled to a second set of terminals for connection to the PCB. The DPST relay has a pair of stationary contacts and a pair of movable contacts for selectively connecting line phase and neutral conductive paths to a load.Type: GrantFiled: March 15, 2005Date of Patent: October 14, 2008Inventors: John J. Power, Armando Calixto, Roger M. Bradley
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Publication number: 20080186116Abstract: Resettable circuit breakers having an independent trip mechanism and a reset lockout are provided. The trip mechanism operates independently of the fault protection operations, and the reset lockout prevents the resetting of the circuit breaker if the fault protection is non-operational or if an open neutral condition exists.Type: ApplicationFiled: April 10, 2008Publication date: August 7, 2008Inventors: Nicholas L. DiSalvo, William R. Ziegler, Frantz Germain, David Herzfeld, Stephen Stewart, Roger M. Bradley
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Publication number: 20080140354Abstract: There is here disclosed a method and apparatus for detecting the occurrence of arcing of a conductor by monitoring the current on an AC power line. The signal detected is split and directed along four separate paths to generate four signals having separate characteristics which represent the current in the line. A first path is for a signal representative of the current flowing in the line. A second path is for a signal having a pulse for each occurrence of a positive step change in current that is significant and has a di/dt value above a predetermined value. A third path is for a signal having a pulse for each occurrence of a negative step change in current that is significant and has a di/dt value above a predetermined value. A fourth path is for a signal having a voltage level representative of the broadband noise signal on the line. Using at least one of five different methods in combination with one of three input signals, a reference signal designated as “SINE” is generated.Type: ApplicationFiled: February 15, 2008Publication date: June 12, 2008Inventors: David Kolker, Roger M. Bradley, Ross Mernyk
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Patent number: 7378927Abstract: Resettable circuit breakers having an independent trip mechanism and a reset lockout are provided. The trip mechanism operates independently of the fault protection operations, and the reset lockout prevents the resetting of the circuit breaker if the fault protection is non-operational or if an open neutral condition exists.Type: GrantFiled: April 5, 2004Date of Patent: May 27, 2008Assignee: Leviton Manufacturing Co., Inc.Inventors: Nicholas L. DiSalvo, William R. Ziegler, Frantz Germain, David Herzfeld, Stephen Stewart, Roger M. Bradley
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Patent number: 7372678Abstract: Resettable circuit interrupting devices having self-test and non-resettable or limited resettable power interrupting systems are provided. The permanent power interrupting system activates when a circuit interrupting device is no longer capable of operating in accordance with applicable standards governing such devices or the device is no longer capable of operating in accordance with its design characteristics.Type: GrantFiled: August 23, 2006Date of Patent: May 13, 2008Assignee: Leviton Manufacturing Co., Inc.Inventors: Nicholas L. DiSalvo, Ross Mernyk, Roger M. Bradley, Stephen Stewart, Frantz Germain, Armando Calixto
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Patent number: 7365621Abstract: Resettable circuit interrupting devices, such as GFCI devices that include a reset lockout mechanism are provided. The GFCI comprises a reset button which is selectively blocked from resetting the GFCI.Type: GrantFiled: August 2, 2004Date of Patent: April 29, 2008Assignee: Leviton Manufacturing Co., Inc.Inventors: Frantz Germain, Stephen Stewart, Roger M. Bradley, Nicholas L. Disalvo, William R. Ziegler
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Patent number: 7333920Abstract: There is here disclosed a method and apparatus for detecting the occurrence of arcing of a conductor by monitoring the current on an AC power line. The signal detected is split and directed along four separate paths to generate four signals having separate characteristics which represent the current in the line. A first path is for a signal representative of the current flowing in the line. A second path is for a signal having a pulse for each occurrence of a positive step change in current that is significant and has a di/dt value above a predetermined value. A third path is for a signal having a pulse for each occurrence of a negative step change in current that is significant and has a di/dt value above a predetermined value. A fourth path is for a signal having a voltage level representative of the broadband noise signal on the line. Using at least one of five different methods in combination with one of three input signals, a reference signal designated as “SINE” is generated.Type: GrantFiled: February 17, 2006Date of Patent: February 19, 2008Assignee: Leviton Manufacturing Co., Inc.Inventors: David Kolker, Roger M. Bradley, Ross Mernyk
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Publication number: 20080002313Abstract: Resettable circuit interrupting devices having self-test and non-resettable or limited resettable power interrupting systems are provided. The permanent power interrupting system activates when a circuit interrupting device is no longer capable of operating in accordance with applicable standards governing such devices or the device is no longer capable of operating in accordance with its design characteristics.Type: ApplicationFiled: August 23, 2006Publication date: January 3, 2008Inventors: Nicholas L. DiSalvo, Ross Mernyk, Roger M. Bradley, Stephen Stewart, Frantz Germain, Armando Calixto
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Patent number: 7259568Abstract: An arc fault detector, as a stand alone device or in combination with a circuit interrupting device such as a ground fault interrupter (GFCI), protects from potentially dangerous arc fault conditions. The device utilizes a line side or load side series connected inductance having an air or magnetic core to generate the derivative di/dt signal of the arc current in the conductor. The derivative signal is fed to an arc fault detector where it is analyzed for the presence of arcing. The device can have two series connected inductors inductively coupled to each other such that the signal from one inductor is inductively coupled into the other inductor for coupling to the arc fault detector.Type: GrantFiled: December 5, 2005Date of Patent: August 21, 2007Assignee: Leviton Manufacturing Co., Inc.Inventors: Ross Mernyk, Roger M. Bradley
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Patent number: 7180299Abstract: An arc fault detector, as a stand alone device or in combination with a circuit interrupting device such as a ground fault interrupter (GFCI), protects from potentially dangerous arc fault conditions. The device utilizes a line side or load side series connected inductance having an air or magnetic core to generate the derivative di/dt signal of the arc current in the conductor. The derivative signal is fed to an arc fault detector where it is analyzed for the presence of arcing. The device can have a series connected inductor on each of multiple conductors of a power distribution network for phase/neutral or multi-phase arc detection.Type: GrantFiled: December 1, 2005Date of Patent: February 20, 2007Assignee: Leviton Manufacturing Co., Inc.Inventors: Ross Mernyk, Roger M. Bradley
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Patent number: 7136266Abstract: In the present invention the basic detection and interruption components of an Immersion Detection Circuit Interrupter (IDCI), in combination with the line, neutral and shield conductors of an extension or appliance cord provides a new improved type of detector, a Leakage Current Detector Interrupter (LCDI) which interrupts current to a load when current leakage is detected between the line or neutral conductors of the cord and the shield conductor.Type: GrantFiled: September 22, 2003Date of Patent: November 14, 2006Assignee: Leviton Manufacturing Co., Inc.Inventors: Bernard J. Gershen, Steve Campolo, James Richter, Lester Rivera, David Herzfeld, Roger M. Bradley
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Patent number: 7098761Abstract: Resettable circuit interrupting devices, such as GFCI devices, that include a reset lockout mechanism, an independent trip mechanism and reverse wiring protection. A conical reset plunger is notched to force a successful test before reset.Type: GrantFiled: December 6, 2004Date of Patent: August 29, 2006Assignee: Leviton Manufacturing Co., Inc.Inventors: Frantz Germain, Stephen Stewart, Roger M. Bradley, David Y. Chan, Nichalas L. DiSalvo, William R. Ziegler
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Patent number: 7012500Abstract: An MOV element is physically and electrically connected to a heat sensitive material which changes from a low impedance path to a high impedance path, such as a spark gap, when the temperature of the MOV element rises to a temperature below that at which the MOV will enter into its thermal runaway state. More specifically, the heat sensitive material is located on a surface of the MOV and is electrically connected in series with the MOV. In operation, as the MOV gets hot, it heats the heat sensitive material. As the heat sensitive material gets hot, it starts to separate from the surface of the MOV to form a spark gap which is electrically connected in series with the MOV element to help dissipate excessive voltage.Type: GrantFiled: March 19, 2004Date of Patent: March 14, 2006Assignee: Leviton Manufacturing Co., Inc.Inventors: David Y. Chan, Roger M. Bradley, John J. Power
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Patent number: 7003435Abstract: There is here disclosed a method and apparatus for detecting the occurrence of arcing of a conductor by monitoring the current on an AC power line. The signal detected is split and directed along four separate paths to generate four signals having separate characteristics which represent the current in the line. A first path is for a signal representative of the current flowing in the line. A second path is for a signal having a pulse for each occurrence of a positive step change in current that is significant and has a di/dt value above a predetermined value. A third path is for a signal having a pulse for each occurrence of a negative step change in current that is significant and has a di/dt value above a predetermined value. A fourth path is for a signal having a voltage level representative of the broadband noise signal on the line. Using at least one of five different methods in combination with one of three input signals, a reference signal designated as “SINE” is generated.Type: GrantFiled: October 3, 2002Date of Patent: February 21, 2006Assignee: Leviton Manufacturing Co., Inc.Inventors: David Kolker, Roger M. Bradley, Ross Mernyk
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Patent number: 6972572Abstract: An arc fault detector, as a stand alone device or in combination with a circuit interrupting device such as a ground fault interrupter (GFCI), protects from potentially dangerous arc fault conditions. The device utilizes a line side or load side series connected inductance having an air or magnetic core to generate the derivative di/dt signal of the arc current in the conductor. The derivative signal is fed to an arc fault detector where it is analyzed for the presence of arcing. The device can have two series connected inductors inductively coupled to each other such that the signal from one inductor is inductively coupled into the other inductor for coupling to the arc fault detector.Type: GrantFiled: December 22, 2003Date of Patent: December 6, 2005Assignee: Leviton Manufacturing Co., Inc.Inventors: Ross Mernyk, Roger M. Bradley
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Patent number: 6828886Abstract: Resettable circuit interrupting devices, such as GFCI devices, that include a reset lockout mechanism, an independent trip mechanism and reverse wiring protection. A conical reset plunger is notched to force a successful test before reset.Type: GrantFiled: December 29, 2003Date of Patent: December 7, 2004Assignee: Leviton Manufacturing Co., Inc.Inventors: Frantz Germain, Stephen Stewart, Roger M. Bradley, David Y. Chan, Nichalas L. Disalvo, William R. Ziegler
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Publication number: 20040184207Abstract: Resettable circuit breakers having an independent trip mechanism and a reset lockout are provided. The trip mechanism operates independently of the fault protection operations, and the reset lockout prevents the resetting of the circuit breaker if the fault protection is non-operational or if an open neutral condition exists.Type: ApplicationFiled: April 5, 2004Publication date: September 23, 2004Inventors: Nicholas L. DiSalvo, William R. Ziegler, Frantz Germain, David Herzfeld, Stephen Stewart, Roger M. Bradley
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Patent number: 6771152Abstract: Resettable circuit interrupting devices, such as GFCI devices that include a reset lockout mechanism, are provided. The reset lockout comprises a member coupled to swing from a pivot which moves with a reset button to permit the resetting of electrical connections between input and output conductors if the circuit interrupting mechanism used to break the connection is non-operational or if an open condition exists.Type: GrantFiled: March 21, 2001Date of Patent: August 3, 2004Assignee: Leviton Manufacturing Co., Inc.Inventors: Frantz Germain, Stephen Stewart, Roger M. Bradley, Nicholas L. Disalvo, William R. Ziegler