Patents by Inventor Thomas N. Packard

Thomas N. Packard 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: 11257649
    Abstract: A protective device including: a plurality of line terminals and a plurality of load terminals a circuit interrupter including a solenoid and a set of interrupting contacts that connect at least one line terminal and at least one load terminal in a reset state and disconnect the at least one line terminal and the at least one load terminal in a tripped state; a voltage detection element configured to detect voltage across the plurality of line terminals and generate a line voltage rejection signal when greater than a predetermined overvoltage; a reset assembly including a reset button and a reset switch operatively coupled to the reset button; and a reset prevention mechanism configured to prevent the circuit interrupter from entering the reset state when the reset signal is absent.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: February 22, 2022
    Assignee: Pass & Seymour, Inc.
    Inventor: Thomas N. Packard
  • Patent number: 11095108
    Abstract: The present invention is directed to protective wiring devices, and more particularly, to a protective wiring device that meets the prevailing electrical codes and is convenient for a homeowner to reset after it has tripped.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: August 17, 2021
    Assignee: Pass & Seymour, Inc.
    Inventor: Thomas N. Packard
  • Patent number: 10686311
    Abstract: An AFCI protective system includes a MOV circuit that has a plurality of line terminals comprising at least one phase conductor, a neutral conductor or a ground conductor. A MOV is coupled to a pair of line terminals through a low impedance circuit, and a response circuit configured to activate a human readable indicator when the MOV is experiencing an end of life condition.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: June 16, 2020
    Assignee: Pass & Seymour, Inc.
    Inventor: Thomas N. Packard
  • Publication number: 20200127452
    Abstract: An arc fault protective wiring device disposed in an electrical distribution system is disclosed, the device including a pulse frequency digitizer, the pulse frequency digitizer being configured to receive a plurality of pulses, each pulse being representative of an instance that the derivative of the current through a neutral conductor exceeds a first predetermined threshold, the pulse frequency digitizer further being configured to produce a digital signal, the digital signal being representative of the instances at which a frequency of the plurality of pulses exceeds a predetermined threshold; and at least one processor configured to trigger a trip mechanism to electrically decouple a line terminal from a load terminal based, at least in part, on the digital signal.
    Type: Application
    Filed: May 23, 2018
    Publication date: April 23, 2020
    Applicant: Pass & Seymour, Inc.
    Inventors: Joshua P. Haines, Thomas N. Packard, Anthony M. Testani, Michael F. McMahon
  • Publication number: 20200035436
    Abstract: A protective device for use in an electrical voltage distribution system providing voltage from a power source to a load, the device including: a housing having a user accessible surface; a plurality of line terminals configured to electrically connect to the power source and a plurality of load terminals configured to electrically connect to the load; a circuit interrupter including a solenoid and a set of interrupting contacts that connect at least one line terminal and at least one load terminal in a reset state and disconnect the at least one line terminal and the at least one load terminal in a tripped state, the solenoid driving the interrupting contacts from the reset state to the tripped state when activated by a switching device; a voltage detection element configured to detect voltage across the plurality of line terminals and generate a line voltage rejection signal when greater than a predetermined overvoltage; a reset assembly including a reset button available via the user accessible surface and
    Type: Application
    Filed: July 24, 2019
    Publication date: January 30, 2020
    Applicant: Pass & Seymour, Inc.
    Inventor: Thomas N. Packard
  • Publication number: 20190386479
    Abstract: The present invention is directed to protective wiring devices, and more particularly, to a protective wiring device that meets the prevailing electrical codes and is convenient for a homeowner to reset after it has tripped.
    Type: Application
    Filed: June 12, 2019
    Publication date: December 19, 2019
    Applicant: Pass & Seymour, Inc.
    Inventor: Thomas N. Packard
  • Publication number: 20180254625
    Abstract: An AFCI protective system includes a MOV circuit that has a plurality of line terminals comprising at least one phase conductor, a neutral conductor or a ground conductor. A MOV is coupled to a pair of line terminals through a low impedance circuit, and a response circuit configured to activate a human readable indicator when the MOV is experiencing an end of life condition.
    Type: Application
    Filed: May 2, 2018
    Publication date: September 6, 2018
    Applicant: Pass & Seymour, Inc.
    Inventor: Thomas N. Packard
  • Patent number: 9979178
    Abstract: An AFCI protective system includes a MOV circuit that has a plurality of line terminals comprising at least one phase conductor, a neutral conductor or a ground conductor. A MOV is coupled to a pair of line terminals through a low impedance circuit, and a response circuit configured to activate a human readable indicator when the MOV is experiencing an end of life condition.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: May 22, 2018
    Assignee: Pass & Seymour, Inc.
    Inventor: Thomas N. Packard
  • Patent number: 9362077
    Abstract: The present invention is directed to an electrical wiring device that includes a plurality of line terminals, a plurality of feed-through load terminals, and at least one set of receptacle load terminals. A circuit interrupter assembly includes a plurality of movable interconnection members. Each movable interconnection member includes a first interconnecting contact disposed on a first side thereof and a second interconnecting contact disposed on a second side thereof. The first interconnecting contact and the second interconnecting contact are offset from one another in a direction substantially orthogonal to a direction of movement. The movable interconnection members are movable in the direction of movement between a reset position wherein the line terminals, the feed-through load terminals and the receptacle load terminals are electrically connected, and a tripped position wherein the the various terminals are electrically disconnected.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: June 7, 2016
    Assignee: PASS & SEYMOUR, INC.
    Inventors: David A. Finlay, Sr., Bruce F. Macbeth, Kent R. Morgan, Patrick J. Murphy, Thomas N. Packard, Jeffrey C Richards, Gerald R. Savicki, Jr., Richard Weeks
  • Publication number: 20160072271
    Abstract: An AFCI protective system includes a MOV circuit that has a plurality of line terminals comprising at least one phase conductor, a neutral conductor or a ground conductor. A MOV is coupled to a pair of line terminals through a low impedance circuit, and a response circuit configured to activate a human readable indicator when the MOV is experiencing an end of life condition.
    Type: Application
    Filed: September 3, 2015
    Publication date: March 10, 2016
    Applicant: Pass & Seymour, Inc.
    Inventor: Thomas N. Packard
  • Patent number: 8953289
    Abstract: The present invention is directed to an electrical wiring device that includes a detection assembly coupled to a plurality of line terminals and a plurality of load terminals, the detection assembly being configured to detect a wiring state associated with the plurality of line terminals and the plurality of load terminals. The detection assembly includes a primary wiring state detection circuit coupled to the plurality of line terminals, and a secondary wiring state detection circuit coupled to the plurality of load terminals.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: February 10, 2015
    Assignee: Pass & Seymour, Inc.
    Inventors: Michael F. McMahon, Kent R. Morgan, David A. Finlay, Sr., Thomas N. Packard, Richard Weeks
  • Publication number: 20130335866
    Abstract: The present invention is directed to an electrical wiring device that includes a detection assembly coupled to a plurality of line terminals and a plurality of load terminals, the detection assembly being configured to detect a wiring state associated with the plurality of line terminals and the plurality of load terminals. The detection assembly includes a primary wiring state detection circuit coupled to the plurality of line terminals, and a secondary wiring state detection circuit coupled to the plurality of load terminals.
    Type: Application
    Filed: August 19, 2013
    Publication date: December 19, 2013
    Applicant: Pass & Seymour, Inc.
    Inventors: Michael F. McMahon, Kent R. Morgan, David A. Finlay, SR., Thomas N. Packard, Richard Weeks
  • Patent number: 8526146
    Abstract: The present invention is directed to an electrical wiring device that includes a circuit coupled to the line terminals and configured to conduct a predetermined current flow when the line terminals are connected to a source of AC power, the predetermined current flow does not simulate a fault condition. An interrupting contact assembly includes four sets of interrupting contacts that are configured to provide electrical continuity between the line terminals, the load terminals and the at least one receptacle in a reset state and configured to interrupt the electrical continuity in tripped state. The interrupting contact assembly is energized to effect the tripped stated and substantially deenergized otherwise, the interrupting contact assembly being substantially prevented from effecting the reset state absent the predetermined current flow.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: September 3, 2013
    Assignee: Pass & Seymour, Inc.
    Inventors: David A. Finlay, Thomas N. Packard
  • Patent number: 8514529
    Abstract: The present invention is directed to an electrical wiring device including a plurality of line terminals configured to be connected to a source of AC power, and a plurality of load terminals. A detection assembly is coupled to the plurality of line terminals and the plurality of load terminals. The detection assembly is configured to detect a wiring state associated with the plurality of line terminals and the plurality of load terminals. The detection assembly includes a primary wiring state detection circuit, a secondary wiring state detection circuit, and an isolation circuit disposed therebetween, the isolation circuit being configured to electrically isolate the line terminals from the secondary wiring state detection circuit in the tripped state.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: August 20, 2013
    Assignee: Pass & Seymour, Inc.
    Inventors: Michael F. McMahon, Kent R. Morgan, Richard Weeks, David A. Finlay, Sr., Thomas N. Packard
  • Patent number: 8446151
    Abstract: The present invention is directed to an electrical wiring device that includes at least one user accessible input mechanism and a test assembly configured to initiate a self-test in response to stimulus signal. The self test determines whether a sensor, a fault detection circuit or a circuit interrupter assembly are in an operational mode or are in a failure mode, the reset stimulus being provided in the operational mode and a reset lockout stimulus being provided in the failure mode. The device also including a reset lockout mechanism coupled to the circuit interrupter assembly and the test assembly. The reset lockout mechanism is configured to disable the reset stimulus in response to the reset lockout stimulus if any one of the at least one sensor, at least one fault detection circuit, or circuit interrupter assembly is determined to be in the failure mode after a predetermined time elapses.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: May 21, 2013
    Assignee: Pass & Seymour, Inc.
    Inventors: Dejan Radosavljevic, Thomas N. Packard, Bruce F. Macbeth, James P. Romano
  • Patent number: 8299799
    Abstract: The present invention is directed to an electrical wiring device that includes an actuator assembly that is responsive to the fault detection signal. The actuator assembly includes a breaker coil configured to generate an actuation force in response to being energized. A circuit interrupter includes four sets of movable contacts configured to be driven into a reset state in response to a reset stimulus, the four sets of movable contacts being configured to be driven into a tripped state in response to the actuation force. A self-test circuit is coupled to the plurality of line terminals or the at least one sensor. The self-test circuit is configured to automatically generate a test signal from time to time during a predetermined portion of an AC power line cycle. The self-test circuit is configured such that the test signal is sensed by the at least one sensor when the at least one sensor is operational, the sensor output signal being a function of the test signal.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: October 30, 2012
    Assignee: Pass & Seymour, Inc.
    Inventors: David A. Finlay, Sr., Bruce F. Macbeth, Kent R. Morgan, Patrick J. Murphy, Thomas N. Packard, Jeffrey C. Richards, Gerald R. Savicki, Jr., Richard Weeks
  • Patent number: 8295017
    Abstract: The present invention is directed to an electrical wiring device that includes a plurality of line terminals including a line hot terminal and a line neutral terminal, and a plurality of load terminals including a load hot terminal and a load neutral terminal. An interrupting contact assembly includes four sets of interrupting contacts configured to provide electrical continuity at least between the line hot terminal and the load hot terminal and the line neutral terminal and the load neutral terminal in a reset state. The four sets of interrupting contacts are open in a tripped state. A miswire prevention arrangement is configured to prevent the interrupting contact assembly from maintaining the reset state when the load hot terminal and the load neutral terminal are connected to a source of AC power.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: October 23, 2012
    Assignee: Pass & Seymour, Inc.
    Inventors: David A. Finlay, Thomas N. Packard
  • Publication number: 20120140369
    Abstract: The present invention is directed to an electrical wiring device that includes at least one user accessible input mechanism and a test assembly configured to initiate a self-test in response to stimulus signal. The self test determines whether a sensor, a fault detection circuit or a circuit interrupter assembly are in an operational mode or are in a failure mode, the reset stimulus being provided in the operational mode and a reset lockout stimulus being provided in the failure mode. The device also including a reset lockout mechanism coupled to the circuit interrupter assembly and the test assembly. The reset lockout mechanism is configured to disable the reset stimulus in response to the reset lockout stimulus if any one of the at least one sensor, at least one fault detection circuit, or circuit interrupter assembly is determined to be in the failure mode after a predetermined time elapses.
    Type: Application
    Filed: December 5, 2011
    Publication date: June 7, 2012
    Applicant: PASS & SEYMOUR, INC.
    Inventors: Dejan Radosavljevic, Thomas N. Packard, Bruce F. Macbeth
  • Patent number: 8072718
    Abstract: The present invention is directed to a protective device that includes a plurality of line terminals and a plurality of load terminals, the plurality of load terminals including a plurality of hot load terminals and a plurality of neutral load terminals. The device also includes a circuit interrupter having four sets of moveable contacts, the four sets of moveable contacts being configured to couple the plurality of line terminal to the plurality of load terminals in a reset state and to decouple the plurality of line terminals from the plurality of load terminals in a tripped state. A test circuit includes an end of life detection circuit coupled to the plurality of line terminals or the plurality of load terminals by a switch mechanism associated with the four sets of moveable contacts.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: December 6, 2011
    Assignee: Pass & Seymour, Inc.
    Inventors: Dejan Radosavljevic, Thomas N. Packard, Bruce F. Macbeth
  • Patent number: D707638
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: June 24, 2014
    Assignee: Pass & Seymour, Inc.
    Inventors: Vikramsinh P. Bhosale, Gerald R. Savicki, Jr., Thomas N. Packard, Daniel P. Malley