Patents by Inventor Leslie Partridge

Leslie Partridge 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: 9918374
    Abstract: In one embodiment of the invention, a method of automatically balancing ionized air stream created in bipolar corona discharge is provided. The method comprises: providing an air moving device with at least one ion emitter and reference electrode connected to a micro-pulsed AC power source, and a control system with at least one ion balance monitor and corona discharge adjustment control; generating variable polarity groups of short duration ionizing micro-pulses: wherein said micro-pulses are predominantly asymmetric in amplitude and duration of both polarity voltages and have a magnitude of at least one polarity ionizing pulses exceed the corona threshold.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: March 13, 2018
    Assignee: Illinois Tool Works Inc.
    Inventors: Edward Oldynski, Peter Gefter, Leslie Partridge
  • Publication number: 20170079125
    Abstract: In one embodiment of the invention, a method of automatically balancing ionized air stream created in bipolar corona discharge is provided. The method comprises: providing an air moving device with at least one ion emitter and reference electrode connected to a micro-pulsed AC power source, and a control system with at least one ion balance monitor and corona discharge adjustment control; generating variable polarity groups of short duration ionizing micro-pulses: wherein said micro-pulses are predominantly asymmetric in amplitude and duration of both polarity voltages and have a magnitude of at least one polarity ionizing pulses exceed the corona threshold.
    Type: Application
    Filed: November 28, 2016
    Publication date: March 16, 2017
    Inventors: Edward Oldynski, Peter Gefter, Leslie Partridge
  • Patent number: 9510431
    Abstract: In one embodiment of the invention, a method of automatically balancing ionized air stream created in bipolar corona discharge is provided. The method comprises: providing an air moving device with at least one ion emitter and reference electrode connected to a micro-pulsed AC power source, and a control system with at least one ion balance monitor and corona discharge adjustment control; generating variable polarity groups of short duration ionizing micro-pulses: wherein said micro-pulses are predominantly asymmetric in amplitude and duration of both polarity voltages and have a magnitude of at least one polarity ionizing pulses exceed the corona threshold.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: November 29, 2016
    Assignee: Illinois Tools Works Inc.
    Inventors: Edward Oldynski, Peter Gefter, Leslie Partridge
  • Patent number: 9125284
    Abstract: In one embodiment of the invention, a method of automatically balancing ionized air stream created in bipolar corona discharge is provided. The method comprises: providing an air moving device with at least one ion emitter and reference electrode connected to a micro-pulsed AC power source, and a control system with at least one ion balance monitor and corona discharge adjustment control; generating variable polarity groups of short duration ionizing micro-pulses: wherein said micro-pulses are predominantly asymmetric in amplitude and duration of both polarity voltages and have a magnitude of at least one polarity ionizing pulses exceed the corona threshold.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: September 1, 2015
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Edward Oldynski, Peter Gefter, Leslie Partridge
  • Publication number: 20150245455
    Abstract: In one embodiment of the invention, a method of automatically balancing ionized air stream created in bipolar corona discharge is provided. The method comprises: providing an air moving device with at least one ion emitter and reference electrode connected to a micro-pulsed AC power source, and a control system with at least one ion balance monitor and corona discharge adjustment control; generating variable polarity groups of short duration ionizing micro-pulses: wherein said micro-pulses are predominantly asymmetric in amplitude and duration of both polarity voltages and have a magnitude of at least one polarity ionizing pulses exceed the corona threshold.
    Type: Application
    Filed: May 13, 2015
    Publication date: August 27, 2015
    Inventors: Edward Oldynski, Peter Gefter, Leslie Partridge
  • Patent number: 9111513
    Abstract: A luthiery fixture or tool provides for a guitar or other stringed instrument to be rotationally supported and securely held above a surface, such as a work bench. The fixture is especially configured to support instruments having differing body dimensions.
    Type: Grant
    Filed: February 1, 2014
    Date of Patent: August 18, 2015
    Inventors: Donald Gregory Piper, John Leslie Partridge
  • Publication number: 20150221292
    Abstract: A luthiery fixture or tool provides for a guitar or other stringed instrument to be rotationally supported and securely held above a surface, such as a work bench. The fixture is especially configured to support instruments having differing body dimensions.
    Type: Application
    Filed: February 1, 2014
    Publication date: August 6, 2015
    Inventors: Donald Gregory Piper, John Leslie Partridge
  • Publication number: 20140293496
    Abstract: In one embodiment of the invention, a method of automatically balancing ionized air stream created in bipolar corona discharge is provided. The method comprises: providing an air moving device with at least one ion emitter and reference electrode connected to a micro-pulsed AC power source, and a control system with at least one ion balance monitor and corona discharge adjustment control; generating variable polarity groups of short duration ionizing micro-pulses: wherein said micro-pulses are predominantly asymmetric in amplitude and duration of both polarity voltages and have a magnitude of at least one polarity ionizing pulses exceed the corona threshold.
    Type: Application
    Filed: March 19, 2014
    Publication date: October 2, 2014
    Inventors: Edward Oldynski, Peter Gefter, Leslie Partridge
  • Patent number: 8773837
    Abstract: An embodiment of the invention provides a method for generating ions within a space separating an emitter and a reference electrode, the method comprising: generating a variable number of small sharp pulses and rate of the pulses depending on the distance of the target from the emitter.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: July 8, 2014
    Assignee: Illinois Tool Works Inc.
    Inventors: Leslie Partridge, Peter Gefter, Edward Oldynski
  • Patent number: 8605407
    Abstract: A low maintenance AC gas-flow driven static neutralizer, comprising at least one emitter and at least one reference electrode; a power supply having an output electrically coupled to the emitter(s) and a reference terminal electrically coupled to the reference electrode(s) with the power supply disposed to produce an output waveform that creates ions by corona discharge and to produce an electrical field when this output waveform is applied to the emitter(s); a gas flow source disposed to produce a gas flow across a first region that includes these generated ions and the emitter(s), the gas flow including a flow velocity; and wherein, during a first time duration, the output waveform decreases an electrical force created by the electrical field, enabling the gas flow to carry away from the emitter(s) a contamination particle that may be located within a second region surrounding the emitter(s), and to minimize a likelihood of the contamination particle from accumulating on the emitter(s).
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: December 10, 2013
    Assignee: Illinois Tool Works Inc.
    Inventors: Peter Gefter, Lawrence Levit, Leslie Partridge, Scott Gehlke
  • Publication number: 20120224293
    Abstract: An embodiment of the invention provides a method for generating ions within a space separating an emitter and a reference electrode, the method comprising: generating a variable number of small sharp pulses and rate of the pulses depending on the distance of the target from the emitter.
    Type: Application
    Filed: February 6, 2012
    Publication date: September 6, 2012
    Inventors: Leslie Partridge, Peter Gefter, Edward Oldynski
  • Publication number: 20110299214
    Abstract: A low maintenance AC gas-flow driven static neutralizer, comprising at least one emitter and at least one reference electrode; a power supply having an output electrically coupled to the emitter(s) and a reference terminal electrically coupled to the reference electrode(s) with the power supply disposed to produce an output waveform that creates ions by corona discharge and to produce an electrical field when this output waveform is applied to the emitter(s); a gas flow source disposed to produce a gas flow across a first region that includes these generated ions and the emitter(s), the gas flow including a flow velocity; and wherein, during a first time duration, the output waveform decreases an electrical force created by the electrical field, enabling the gas flow to carry away from the emitter(s) a contamination particle that may be located within a second region surrounding the emitter(s), and to minimize a likelihood of the contamination particle from accumulating on the emitter(s).
    Type: Application
    Filed: August 15, 2011
    Publication date: December 8, 2011
    Inventors: Peter Gefter, Lawrence Levit, Leslie Partridge, Scott Gehlke
  • Patent number: 8009405
    Abstract: A low maintenance AC gas-flow driven static neutralizer, comprising at least one emitter and at least one reference electrode; a power supply having an output electrically coupled to the emitter(s) and a reference terminal electrically coupled to the reference electrode(s) with the power supply disposed to produce an output waveform that creates ions by corona discharge and to produce an electrical field when this output waveform is applied to the emitter(s); a gas flow source disposed to produce a gas flow across a first region that includes these generated ions and the emitter(s), the gas flow including a flow velocity; and wherein, during a first time duration, the output waveform decreases an electrical force created by the electrical field, enabling the gas flow to carry away from the emitter(s) a contamination particle that may be located within a second region surrounding the emitter(s), and to minimize a likelihood of the contamination particle from accumulating on the emitter(s).
    Type: Grant
    Filed: March 16, 2008
    Date of Patent: August 30, 2011
    Assignee: Ion Systems, Inc.
    Inventors: Peter Gefter, Lawrence Levit, Leslie Partridge, Scott Gehlke
  • Publication number: 20080232021
    Abstract: A low maintenance AC gas-flow driven static neutralizer, comprising at least one emitter and at least one reference electrode; a power supply having an output electrically coupled to the emitter(s) and a reference terminal electrically coupled to the reference electrode(s) with the power supply disposed to produce an output waveform that creates ions by corona discharge and to produce an electrical field when this output waveform is applied to the emitter(s); a gas flow source disposed to produce a gas flow across a first region that includes these generated ions and the emitter(s), the gas flow including a flow velocity; and wherein, during a first time duration, the output waveform decreases an electrical force created by the electrical field, enabling the gas flow to carry away from the emitter(s) a contamination particle that may be located within a second region surrounding the emitter(s), and to minimize a likelihood of the contamination particle from accumulating on the emitter(s).
    Type: Application
    Filed: March 16, 2008
    Publication date: September 25, 2008
    Applicant: MKS INSTRUMENTS, INC.
    Inventors: Peter Gefter, Lawrence Levit, Leslie Partridge, Scott Gehlke
  • Publication number: 20070103842
    Abstract: An improved ionizer for providing an enhanced ion balance of negative and positive ions is disclosed. The ionizer may include a first ion emitter and a second ion emitter; at least one reference electrode coupled to ground; and a power supply for providing an AC voltage to the first and second ion emitter. This power supply is DC isolated from ground. In addition, the present invention includes a first rectifier coupled in series between the first ion emitter and the power supply, a second rectifier coupled in series between the second ion emitter and the power supply. The first and second rectifiers cause a DC bipolar voltage to be created from the first and second ion emitters during operation of the ionizer.
    Type: Application
    Filed: November 3, 2006
    Publication date: May 10, 2007
    Applicant: MKS INSTRUMENTS, INC.
    Inventors: Leslie Partridge, Grigoriy Vernitskiy, Peter Gefter
  • Patent number: 6515458
    Abstract: A signal translating circuit is operable on applied input signal through recurring cycles of conduction and non-conduction of a junction type transistor in response to current transfers between inductors in collector and base circuits through an internal conduction path of the collector-base junction. The inductor in the collector circuit is connected to receive the input signal, and bias circuitry connected between the base and emitter receives the input signal for powering cyclic operation at a frequency determined in part by the values of inductance in the base and collector circuits. Output utilization circuitry produces output voltages of opposite polarity from oscillator output pulses of predominantly one polarity.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: February 4, 2003
    Assignee: Ion Systems, Inc.
    Inventor: Leslie Partridge