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).

  • Patent number: 8139328
    Abstract: 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: Grant
    Filed: November 21, 2008
    Date of Patent: March 20, 2012
    Assignee: Levitron Manufacturing Company, Inc.
    Inventors: Nicholas L. DiSalvo, James A. Porter
  • Patent number: 8130480
    Abstract: 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: Grant
    Filed: July 28, 2011
    Date of Patent: March 6, 2012
    Assignee: Leviton Manufactuing Co., Inc.
    Inventor: Nicholas L. DiSalvo
  • Publication number: 20110279933
    Abstract: 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: Application
    Filed: July 28, 2011
    Publication date: November 17, 2011
    Applicant: LEVITON MANUFACTURING CO., INC.
    Inventors: Steve Campolo, Nicholas L. Disalvo, William R. Ziegler
  • Patent number: 8054595
    Abstract: 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: Grant
    Filed: November 10, 2009
    Date of Patent: November 8, 2011
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Nicholas L. DiSalvo, William R. Ziegler
  • Patent number: 7907371
    Abstract: 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: Grant
    Filed: January 14, 2008
    Date of Patent: March 15, 2011
    Assignee: Leviton Manufacturing Company, Inc.
    Inventors: Steve Campolo, Nicholas L. Disalvo, William R. Ziegler
  • Patent number: 7826183
    Abstract: 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: Grant
    Filed: January 14, 2008
    Date of Patent: November 2, 2010
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Steve Campolo, Nicholas L. Disalvo, William R. Ziegler
  • Patent number: 7800874
    Abstract: 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: Grant
    Filed: May 9, 2008
    Date of Patent: September 21, 2010
    Assignee: Leviton Manufacturing Company, Inc.
    Inventors: Nicholas L. DiSalvo, Ross Mernyk, Roger M. Bradley, Stephen Stewart, Frantz Germain, Armando Calixto
  • Patent number: 7764151
    Abstract: 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: Grant
    Filed: July 21, 2008
    Date of Patent: July 27, 2010
    Assignee: Leviton Manufacturing Co., Ltd.
    Inventors: Nicholas L. DiSalvo, William R. Ziegler
  • Publication number: 20100134932
    Abstract: 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: Application
    Filed: November 10, 2009
    Publication date: June 3, 2010
    Applicant: LEVITON MANUFACTURING COMPANY, INC.
    Inventors: Steve Campolo, Nicholas L. Disalvo, William R. Ziegler
  • Publication number: 20100039278
    Abstract: 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: Application
    Filed: February 13, 2009
    Publication date: February 18, 2010
    Applicant: Leviton Manfucturing Co., Inc.
    Inventors: Frantz Germain, Stephen Stewart, David Herzfeld, Steve Campolo, Nicholas L. DiSalvo, William R. Ziegler
  • Patent number: 7639461
    Abstract: 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: Grant
    Filed: April 20, 2005
    Date of Patent: December 29, 2009
    Assignee: Leviton Manufacturing Company, Inc.
    Inventors: Nicholas L. DiSalvo, Steve Campolo
  • Patent number: 7545244
    Abstract: 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: Grant
    Filed: April 10, 2008
    Date of Patent: June 9, 2009
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Nicholas L. DiSalvo, William R. Ziegler, Frantz Germain, David Herzfeld, Stephen Stewart, Roger M. Bradley
  • Publication number: 20090128264
    Abstract: 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: Application
    Filed: November 21, 2008
    Publication date: May 21, 2009
    Applicant: Leviton Manufacturing Company, Inc.
    Inventors: Nicholas L. DiSalvo, James A. PORTER
  • Patent number: 7502212
    Abstract: Resettable circuit interrupting devices, such as an IDCI, are provided having a reset lockout and independent trip.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: March 10, 2009
    Assignee: Leviton Manufacturing Co., Inc.
    Inventor: Nicholas L. DiSalvo
  • Publication number: 20090052098
    Abstract: 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: Application
    Filed: July 21, 2008
    Publication date: February 26, 2009
    Inventors: Nicholas L. DiSalvo, William R. Ziegler
  • Patent number: 7492558
    Abstract: 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: Grant
    Filed: April 17, 2006
    Date of Patent: February 17, 2009
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Frantz Germain, Stephen Stewart, David Herzfeld, Steve Campolo, Nicholas L. Disalvo, William R. Ziegler
  • Publication number: 20090040667
    Abstract: 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: Application
    Filed: May 9, 2008
    Publication date: February 12, 2009
    Applicant: LEVITON MANUFACTURING COMPANY, INC.
    Inventors: Nicholas L. DiSALVO, Ross MERNYK, Roger M. BRADLEY, Stephen STEWART, Frantz GERMAIN, Armando CALIXTO
  • Patent number: 7463124
    Abstract: 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: Grant
    Filed: October 28, 2004
    Date of Patent: December 9, 2008
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Nicholas L. DiSalvo, William R. Ziegler
  • Publication number: 20080186642
    Abstract: 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: Application
    Filed: January 14, 2008
    Publication date: August 7, 2008
    Applicant: LEVITON MANUFACTURING COMPANY, INC.
    Inventors: Steve Campolo, Nicholas L. Disalvo, William R. Ziegler
  • Publication number: 20080186116
    Abstract: 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: Application
    Filed: April 10, 2008
    Publication date: August 7, 2008
    Inventors: Nicholas L. DiSalvo, William R. Ziegler, Frantz Germain, David Herzfeld, Stephen Stewart, Roger M. Bradley