Patents by Inventor Nicholas L. DiSalvo
Nicholas L. DiSalvo 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: 8139328Abstract: There is disclosed a circuit interrupting device with symmetrical inputs comprising a first input configured for connection to a power source or a load circuit and a second input configured for connection to a power source. There are a plurality of electrical conductors extending from the first and second inputs and a third input configured for connection to a load provided by a user. There is also a first set of transformers comprising at least one differential transformer and at least one neutral transformer connected to detect leakage current in a load circuit coupled to the first set of terminals. There is also a second set of transformers comprising at least one additional differential transformer and at least one additional neutral transformer connected to detect leakage current in a load circuit coupled to the second set of terminals.Type: GrantFiled: November 21, 2008Date of Patent: March 20, 2012Assignee: Levitron Manufacturing Company, Inc.Inventors: Nicholas L. DiSalvo, James A. Porter
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Patent number: 8130480Abstract: Resettable circuit interrupting devices, such as GFCI devices, that include reverse wiring protection, and optionally an independent trip portions and/or a reset lockout portion are provided. The reverse wiring protection operates at both the line and load sides of the device so that in the event line side wiring to the device is improperly connected to the load side, fault protection for the device remains. The trip portion operates independently of a circuit interrupting portion used to break the electrical continuity in one or more conductive paths in the device. The reset lockout portion prevents the reestablishing of electrical continuity in open conductive paths if the circuit interrupting portion is non-operational, if an open neutral condition exists or if the device is reverse wired. Methods for ensuring a reset lockout state before shipment are provided.Type: GrantFiled: July 28, 2011Date of Patent: March 6, 2012Assignee: Leviton Manufactuing Co., Inc.Inventor: Nicholas L. DiSalvo
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Publication number: 20110279933Abstract: Resettable circuit interrupting devices, such as GFCI devices, that include reverse wiring protection, and optionally an independent trip portions and/or a reset lockout portion are provided. The reverse wiring protection operates at both the line and load sides of the device so that in the event line side wiring to the device is improperly connected to the load side, fault protection for the device remains. The trip portion operates independently of a circuit interrupting portion used to break the electrical continuity in one or more conductive paths in the device. The reset lockout portion prevents the reestablishing of electrical continuity in open conductive paths if the circuit interrupting portion is non-operational, if an open neutral condition exists or if the device is reverse wired. Methods for ensuring a reset lockout state before shipment are provided.Type: ApplicationFiled: July 28, 2011Publication date: November 17, 2011Applicant: LEVITON MANUFACTURING CO., INC.Inventors: Steve Campolo, Nicholas L. Disalvo, William R. Ziegler
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Patent number: 8054595Abstract: Resettable circuit interrupting devices, such as GFCI devices, that include reverse wiring protection, and optionally an independent trip portions and/or a reset lockout portion are provided. The reverse wiring protection operates at both the line and load sides of the device so that in the event line side wiring to the device is improperly connected to the load side, fault protection for the device remains. The trip portion operates independently of a circuit interrupting portion used to break the electrical continuity in one or more conductive paths in the device. The reset lockout portion prevents the reestablishing of electrical continuity in open conductive paths if the circuit interrupting portion is non-operational, if an open neutral condition exists or if the device is reverse wired. Methods for ensuring a reset lockout state before shipment are provided.Type: GrantFiled: November 10, 2009Date of Patent: November 8, 2011Assignee: Leviton Manufacturing Co., Inc.Inventors: Nicholas L. DiSalvo, William R. Ziegler
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Patent number: 7907371Abstract: Resettable circuit interrupting devices, such as GFCI devices, that include reverse wiring protection, and optionally an independent trip portions and/or a reset lockout portion are provided. The reverse wiring protection operates at both the line and load sides of the device so that in the event line side wiring to the device is improperly connected to the load side, fault protection for the device remains. The trip portion operates independently of a circuit interrupting portion used to break the electrical continuity in one or more conductive paths in the device. The reset lockout portion prevents the reestablishing of electrical continuity in open conductive paths if the circuit interrupting portion is non-operational, if an open neutral condition exists or if the device is reverse wired. Methods for ensuring a reset lock out state before shipment are provided.Type: GrantFiled: January 14, 2008Date of Patent: March 15, 2011Assignee: Leviton Manufacturing Company, Inc.Inventors: Steve Campolo, Nicholas L. Disalvo, William R. Ziegler
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Patent number: 7826183Abstract: Resettable circuit interrupting devices, such as GFCI devices, that include reverse wiring protection, and optionally an independent trip portions and/or a reset lockout portion are provided. The reverse wiring protection operates at both the line and load sides of the device so that in the event line side wiring to the device is improperly connected to the load side, fault protection for the device remains. The trip portion operates independently of a circuit interrupting portion used to break the electrical continuity in one or more conductive paths in the device. The reset lockout portion prevents the reestablishing of electrical continuity in open conductive paths if the circuit interrupting portion is non-operational, if an open neutral condition exists or if the device is reverse wired. Methods for ensuring a reset lock out state before shipment are provided.Type: GrantFiled: January 14, 2008Date of Patent: November 2, 2010Assignee: Leviton Manufacturing Co., Inc.Inventors: Steve Campolo, Nicholas L. Disalvo, William R. Ziegler
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Patent number: 7800874Abstract: 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: May 9, 2008Date of Patent: September 21, 2010Assignee: 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: 7764151Abstract: Resettable circuit interrupting devices, such as GFCI devices, that include reverse wiring protection, and optionally an independent trip portions and/or a reset lockout portion are provided. The reverse wiring protection operates at both the line and load sides of the device so that in the event line side wiring to the device is improperly connected to the load side, fault protection for the device remains. The trip portion operates independently of a circuit interrupting portion used to break the electrical continuity in one or more conductive paths in the device. The reset lockout portion prevents the reestablishing of electrical continuity in open conductive paths if the circuit interrupting portion is non-operational or if an open neutral condition exists.Type: GrantFiled: July 21, 2008Date of Patent: July 27, 2010Assignee: Leviton Manufacturing Co., Ltd.Inventors: Nicholas L. DiSalvo, William R. Ziegler
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Publication number: 20100134932Abstract: Resettable circuit interrupting devices, such as GFCI devices, that include reverse wiring protection, and optionally an independent trip portions and/or a reset lockout portion are provided. The reverse wiring protection operates at both the line and load sides of the device so that in the event line side wiring to the device is improperly connected to the load side, fault protection for the device remains. The trip portion operates independently of a circuit interrupting portion used to break the electrical continuity in one or more conductive paths in the device. The reset lockout portion prevents the reestablishing of electrical continuity in open conductive paths if the circuit interrupting portion is non-operational, if an open neutral condition exists or if the device is reverse wired. Methods for ensuring a reset lockout state before shipment are provided.Type: ApplicationFiled: November 10, 2009Publication date: June 3, 2010Applicant: LEVITON MANUFACTURING COMPANY, INC.Inventors: Steve Campolo, Nicholas L. Disalvo, William R. Ziegler
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Publication number: 20100039278Abstract: Resettable circuit interrupting devices using a center latch are provided. The circuit interrupting devices include those with a reset lockout, reverse wiring protection, and/or an independent trip portion.Type: ApplicationFiled: February 13, 2009Publication date: February 18, 2010Applicant: Leviton Manfucturing Co., Inc.Inventors: Frantz Germain, Stephen Stewart, David Herzfeld, Steve Campolo, Nicholas L. DiSalvo, William R. Ziegler
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Patent number: 7639461Abstract: The present invention is directed to current interrupting devices with overcurrent protection. In one embodiment, a ground fault circuit interrupter (GFCI) is disclosed having both ground fault and overcurrent protection. The GFCI has a current detection circuit that includes a switch connected across the load phase terminal and the line neutral terminal of the device. A comparator compares a predefined threshold voltage to a sensed voltage based on a current through the line and load neutral terminals of the device. If the sensed voltage exceeds the predefined threshold, the comparator causes the switch to conduct thereby tripping the device, disconnecting the load from the line terminals and preventing the overcurrent condition from causing damage to the device and/or load.Type: GrantFiled: April 20, 2005Date of Patent: December 29, 2009Assignee: Leviton Manufacturing Company, Inc.Inventors: Nicholas L. DiSalvo, Steve Campolo
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Patent number: 7545244Abstract: 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 10, 2008Date of Patent: June 9, 2009Assignee: Leviton Manufacturing Co., Inc.Inventors: Nicholas L. DiSalvo, William R. Ziegler, Frantz Germain, David Herzfeld, Stephen Stewart, Roger M. Bradley
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Publication number: 20090128264Abstract: There is disclosed a circuit interrupting device with symmetrical inputs comprising a first input configured for connection to a power source or a load circuit and a second input configured for connection to a power source. There are a plurality of electrical conductors extending from the first and second inputs and a third input configured for connection to a load provided by a user. There is also a first set of transformers comprising at least one differential transformer and at least one neutral transformer connected to detect leakage current in a load circuit coupled to the first set of terminals.Type: ApplicationFiled: November 21, 2008Publication date: May 21, 2009Applicant: Leviton Manufacturing Company, Inc.Inventors: Nicholas L. DiSalvo, James A. PORTER
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Patent number: 7502212Abstract: Resettable circuit interrupting devices, such as an IDCI, are provided having a reset lockout and independent trip.Type: GrantFiled: December 12, 2005Date of Patent: March 10, 2009Assignee: Leviton Manufacturing Co., Inc.Inventor: Nicholas L. DiSalvo
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Publication number: 20090052098Abstract: Resettable circuit interrupting devices, such as GFCI devices, that include reverse wiring protection, and optionally an independent trip portions and/or a reset lockout portion are provided. The reverse wiring protection operates at both the line and load sides of the device so that in the event line side wiring to the device is improperly connected to the load side, fault protection for the device remains. The trip portion operates independently of a circuit interrupting portion used to break the electrical continuity in one or more conductive paths in the device. The reset lockout portion prevents the reestablishing of electrical continuity in open conductive paths if the circuit interrupting portion is non-operational or if an open neutral condition exists.Type: ApplicationFiled: July 21, 2008Publication date: February 26, 2009Inventors: Nicholas L. DiSalvo, William R. Ziegler
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Patent number: 7492558Abstract: Resettable circuit interrupting devices using a center latch are provided. The circuit interrupting devices include those with a reset lockout, reverse wiring protection, and/or an independent trip portion.Type: GrantFiled: April 17, 2006Date of Patent: February 17, 2009Assignee: Leviton Manufacturing Co., Inc.Inventors: Frantz Germain, Stephen Stewart, David Herzfeld, Steve Campolo, Nicholas L. Disalvo, William R. Ziegler
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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: 7463124Abstract: Resettable circuit interrupting devices, such as GFCI devices, that include reverse wiring protection, and optionally an independent trip portions and/or a reset lockout portion are provided. The reverse wiring protection operates at both the line and load sides of the device so that in the event line side wiring to the device is improperly connected to the load side, fault protection for the device remains. The trip portion operates independently of a circuit interrupting portion used to break the electrical continuity in one or more conductive paths in the device. The reset lockout portion prevents the reestablishing of electrical continuity in open conductive paths if the circuit interrupting portion is non-operational or if an open neutral condition exists.Type: GrantFiled: October 28, 2004Date of Patent: December 9, 2008Assignee: Leviton Manufacturing Co., Inc.Inventors: Nicholas L. DiSalvo, William R. Ziegler
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Publication number: 20080186642Abstract: Resettable circuit interrupting devices, such as GFCI devices, that include reverse wiring protection, and optionally an independent trip portions and/or a reset lockout portion are provided. The reverse wiring protection operates at both the line and load sides of the device so that in the event line side wiring to the device is improperly connected to the load side, fault protection for the device remains. The trip portion operates independently of a circuit interrupting portion used to break the electrical continuity in one or more conductive paths in the device. The reset lockout portion prevents the reestablishing of electrical continuity in open conductive paths if the circuit interrupting portion is non-operational, if an open neutral condition exists or if the device is reverse wired. Methods for ensuring a reset lock out state before shipment are provided.Type: ApplicationFiled: January 14, 2008Publication date: August 7, 2008Applicant: LEVITON MANUFACTURING COMPANY, INC.Inventors: Steve Campolo, Nicholas L. Disalvo, William R. Ziegler
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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