Patents by Inventor Peter Gefter

Peter Gefter 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: 11278916
    Abstract: Apparatuses for converting a non-ionized gas stream into an ionized gas stream are disclosed. Disclosed apparatus include an ionizing wire electrode at least partially disposed within and stationary relative to a channel. A frame has plural support elements for supporting the ionizing wire. The frame is configured to make full rotations around the channel in a first rotation direction while applying tension to the ionizing wire. The support elements are configured to physically remove material from the ionizing wire while the support elements are moved along the wire by the frame rotation.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: March 22, 2022
    Assignee: Illinois Tool Works Inc.
    Inventors: Peter Gefter, Aleksey Klochkov, Leslie W. Partridge
  • Publication number: 20200368759
    Abstract: Apparatuses for converting a non-ionized gas stream into an ionized gas stream are disclosed. Disclosed apparatus include an ionizing wire electrode at least partially disposed within and stationary relative to a channel. A frame has plural support elements for supporting the ionizing wire. The frame is configured to make full rotations around the channel in a first rotation direction while applying tension to the ionizing wire. The support elements are configured to physically remove material from the ionizing wire while the support elements are moved along the wire by the frame rotation.
    Type: Application
    Filed: August 7, 2020
    Publication date: November 26, 2020
    Inventors: Peter Gefter, Aleksey Klochkov, Leslie W. Partridge
  • Patent number: 10737279
    Abstract: Apparatuses for converting a non-ionized gas stream into an ionized gas stream are disclosed. Disclosed apparatus include an ionizing wire electrode at least partially disposed within and stationary relative to a channel. A frame has plural support elements for supporting the ionizing wire. The frame is configured to make full rotations around the channel in a first rotation direction while applying tension to the ionizing wire. The support elements are configured to physically remove material from the ionizing wire while the support elements are moved along the wire by the frame rotation.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: August 11, 2020
    Assignee: Illinois Tool Works Inc.
    Inventors: Peter Gefter, Aleksey Klochkov, Leslie W. Partridge
  • Patent number: 10136507
    Abstract: An embodiment of the invention provides a method for low emission charge neutralization, comprising: generating a high frequency alternating current (AC) voltage; transmitting the high frequency AC voltage to at least one non-metallic emitter; wherein the at least one non-metallic emitter comprises at least 70% silicon by weight and less than 99.99% silicon by weight; wherein the at least one emitter comprises at least one treated surface section with a destroyed oxidation layer; and generating ions from the at least one non-metallic emitter in response to the high frequency AC voltage. Another embodiment of the invention provides an apparatus for low emission charge neutralization wherein the apparatus can perform the above-described operations.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: November 20, 2018
    Assignee: Illinois Tool Works Inc.
    Inventors: Peter Gefter, Aleksey Klochkov
  • 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
  • Patent number: 9859090
    Abstract: A self-cleaning linear ionizer with at least one ionizing electrode, at least one electrode-cleaner, and at least two spool assemblies is disclosed. The electrode has opposing ends and defines an axial working length with a surface that produces an ion cloud and develops degradation products with use. Although the working length of the electrode is stationary, the electrode is movable. The electrode-cleaner is also stationary and selectively engages the electrode along its working length. The opposing ends of the electrode are fixed to the opposing spool assemblies which selectively move the ionizing electrode such that the electrode-cleaner removes at least some of the surface degradation products from the electrode during movement. Methods of using the disclosed ionizer have self-cleaning and ionization modes of operation, which may occur cyclically, alternately, or simultaneously, are also disclosed.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: January 2, 2018
    Assignee: Illinois Tool Works Inc.
    Inventor: Peter Gefter
  • Publication number: 20170238404
    Abstract: An embodiment of the invention provides a method for low emission charge neutralization, comprising: generating a high frequency alternating current (AC) voltage; transmitting the high frequency AC voltage to at least one non-metallic emitter; wherein the at least one non-metallic emitter comprises at least 70% silicon by weight and less than 99.99% silicon by weight; wherein the at least one emitter comprises at least one treated surface section with a destroyed oxidation layer; and generating ions from the at least one non-metallic emitter in response to the high frequency AC voltage. Another embodiment of the invention provides an apparatus for low emission charge neutralization wherein the apparatus can perform the above-described operations.
    Type: Application
    Filed: May 1, 2017
    Publication date: August 17, 2017
    Inventors: Peter Gefter, Aleksey Klochkov
  • Publication number: 20170216849
    Abstract: Apparatuses for converting a non-ionized gas stream into an ionized gas stream are disclosed. Disclosed apparatus include an ionizing wire electrode at least partially disposed within and stationary relative to a channel. A frame has plural support elements for supporting the ionizing wire. The frame is configured to make full rotations around the channel in a first rotation direction while applying tension to the ionizing wire. The support elements are configured to physically remove material from the ionizing wire while the support elements are moved along the wire by the frame rotation.
    Type: Application
    Filed: April 14, 2017
    Publication date: August 3, 2017
    Inventors: Peter Gefter, Aleksey Klochkov, Leslie W. Partridge
  • Publication number: 20170169986
    Abstract: A self-cleaning linear ionizer with at least one ionizing electrode, at least one electrode-cleaner, and at least two spool assemblies is disclosed. The electrode has opposing ends and defines an axial working length with a surface that produces an ion cloud and develops degradation products with use. Although the working length of the electrode is stationary, the electrode is movable. The electrode-cleaner is also stationary and selectively engages the electrode along its working length. The opposing ends of the electrode are fixed to the opposing spool assemblies which selectively move the ionizing electrode such that the electrode-cleaner removes at least some of the surface degradation products from the electrode during movement. Methods of using the disclosed ionizer have self-cleaning and ionization modes of operation, which may occur cyclically, alternately, or simultaneously, are also disclosed.
    Type: Application
    Filed: December 10, 2015
    Publication date: June 15, 2017
    Applicant: ILLINOIS TOOL WORKS INC.
    Inventor: Peter GEFTER
  • Patent number: 9661725
    Abstract: Methods and apparatus for cleaning contaminant byproducts off of ionizing wire electrodes in ionizing blowers are disclosed. Disclosed apparatus include a housing with a gas-flow channel, an stationary ionizing wire, and a rotatable frame with supports for resiliently supporting the stationary ionizing wire within the channel. The ionizing wire produces charge carriers and has a surface that develops a layer of contaminant byproducts when an ionizing signal is applied thereto. The frame is rotatably mounted such that the supports clean the layer of contaminant byproducts off of the surface of the ionizing wire when the frame is rotated. Disclosed methods include providing an ionizing signal to the ionizing wire to thereby produce charge carriers and rotating the frame relative to the housing to thereby clean contaminant byproducts off of the ionizing wire.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: May 23, 2017
    Assignee: Illinois Tool Works Inc.
    Inventors: Peter Gefter, Aleksey Klochkov, Leslie W. Partridge
  • Patent number: 9661727
    Abstract: Methods and apparatus for cleaning contaminant byproducts off of ionizing wire electrodes in ionizing blowers are disclosed. Disclosed apparatus include a housing with a gas-flow channel, an stationary ionizing wire, and a rotatable frame with supports for resiliently supporting the stationary ionizing wire within the channel. The ionizing wire produces charge carriers and has a surface that develops a layer of contaminant byproducts when an ionizing signal is applied thereto. The frame is rotatably mounted such that the supports clean the layer of contaminant byproducts off of the surface of the ionizing wire when the frame is rotated. Disclosed methods include providing an ionizing signal to the ionizing wire to thereby produce charge carriers and rotating the frame relative to the housing to thereby clean contaminant byproducts off of the ionizing wire.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: May 23, 2017
    Assignee: Illinois Tool Works Inc.
    Inventors: Peter Gefter, Aleksey Klochkov, Leslie W. Partridge
  • Patent number: 9642232
    Abstract: An embodiment of the invention provides a method for low emission charge neutralization, comprising: generating a high frequency alternating current (AC) voltage; transmitting the high frequency AC voltage to at least one non-metallic emitter; wherein the at least one non-metallic emitter comprises at least 70% silicon by weight and less than 99.99% silicon by weight; wherein the at least one emitter comprises at least one treated surface section with a destroyed oxidation layer; and generating ions from the at least one non-metallic emitter in response to the high frequency AC voltage. Another embodiment of the invention provides an apparatus for low emission charge neutralization wherein the apparatus can perform the above-described operations.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: May 2, 2017
    Assignee: Illinois Tool Works Inc.
    Inventors: Peter Gefter, Aleksey Klochkov
  • 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
  • Publication number: 20160302292
    Abstract: An embodiment of the invention provides a method for low emission charge neutralization, comprising: generating a high frequency alternating current (AC) voltage; transmitting the high frequency AC voltage to at least one non-metallic emitter; wherein the at least one non-metallic emitter comprises at least 70% silicon by weight and less than 99.99% silicon by weight; wherein the at least one emitter comprises at least one treated surface section with a destroyed oxidation layer; and generating ions from the at least one non-metallic emitter in response to the high frequency AC voltage. Another embodiment of the invention provides an apparatus for low emission charge neutralization wherein the apparatus can perform the above-described operations.
    Type: Application
    Filed: June 9, 2016
    Publication date: October 13, 2016
    Inventors: Peter Gefter, Aleksey Klochkov
  • Publication number: 20160198554
    Abstract: Methods and apparatus for cleaning contaminant byproducts off of ionizing wire electrodes in ionizing blowers are disclosed. Disclosed apparatus include a housing with a gas-flow channel, an stationary ionizing wire, and a rotatable frame with supports for resiliently supporting the stationary ionizing wire within the channel. The ionizing wire produces charge carriers and has a surface that develops a layer of contaminant byproducts when an ionizing signal is applied thereto. The frame is rotatably mounted such that the supports clean the layer of contaminant byproducts off of the surface of the ionizing wire when the frame is rotated. Disclosed methods include providing an ionizing signal to the ionizing wire to thereby produce charge carriers and rotating the frame relative to the housing to thereby clean contaminant byproducts off of the ionizing wire.
    Type: Application
    Filed: February 17, 2016
    Publication date: July 7, 2016
    Applicant: ILLINOIS TOOL WORKS INC.
    Inventors: Peter GEFTER, Aleksey KLOCHKOV, Leslie W. PARTRIDGE
  • Patent number: 9380689
    Abstract: An embodiment of the invention provides a method for low emission charge neutralization, comprising: generating a high frequency alternating current (AC) voltage; transmitting the high frequency AC voltage to at least one non-metallic emitter; wherein the at least one non-metallic emitter comprises at least 70% silicon by weight and less than 99.99% silicon by weight; wherein the at least one emitter comprises at least one treated surface section with a destroyed oxidation layer; and generating ions from the at least one non-metallic emitter in response to the high frequency AC voltage. Another embodiment of the invention provides an apparatus for low emission charge neutralization wherein the apparatus can perform the above-described operations.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: June 28, 2016
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Peter Gefter, Aleksey Klochkov
  • Patent number: 9357624
    Abstract: Methods and apparatus for static charge neutralization in variable pressure environments are disclosed. In particular, barrier discharge ionization apparatus may include a hollow dielectric channel disposed within a variable pressure environment and may have at least one open end, a reference emitter disposed on the outer surface of the channel, and a high voltage electrode disposed within the channel. The high voltage electrode may present a high intensity electric field to the reference emitter through the dielectric channel in response to the provision of a variable-waveform signal dictated by conditions in the variable pressure environment. This results in the generation of a plasma region with electrically balanced charge carriers within the variable pressure environment due to barrier discharge occurring at the interface of the reference emitter and the outer surface of the dielectric channel. The disclosed apparatus are compatible with either radio frequency or micro-pulse voltage power supplies.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: May 31, 2016
    Assignee: Illinois Tool Works Inc.
    Inventors: Peter Gefter, Edward Anthony Oldynski, Steven Bernard Heymann
  • Publication number: 20160135273
    Abstract: Methods and apparatus for static charge neutralization in variable pressure environments are disclosed. In particular, barrier discharge ionization apparatus may include a hollow dielectric channel disposed within a variable pressure environment and may have at least one open end, a reference emitter disposed on the outer surface of the channel, and a high voltage electrode disposed within the channel. The high voltage electrode may present a high intensity electric field to the reference emitter through the dielectric channel in response to the provision of a variable-waveform signal dictated by conditions in the variable pressure environment. This results in the generation of a plasma region with electrically balanced charge carriers within the variable pressure environment due to barrier discharge occurring at the interface of the reference emitter and the outer surface of the dielectric channel. The disclosed apparatus are compatible with either radio frequency or micro-pulse voltage power supplies.
    Type: Application
    Filed: June 1, 2015
    Publication date: May 12, 2016
    Applicant: ILLINOIS TOOL WORKS INC.
    Inventors: Peter GEFTER, Edward Anthony OLDYNSKI, Steven Bernard HEYMANN
  • Publication number: 20150336109
    Abstract: Methods and apparatus for cleaning contaminant byproducts off of ionizing wire electrodes in ionizing blowers are disclosed. Disclosed apparatus include a housing with a gas-flow channel, an stationary ionizing wire, and a rotatable frame with supports for resiliently supporting the stationary ionizing wire within the channel. The ionizing wire produces charge carriers and has a surface that develops a layer of contaminant byproducts when an ionizing signal is applied thereto. The frame is rotatably mounted such that the supports clean the layer of contaminant byproducts off of the surface of the ionizing wire when the frame is rotated, by physical and/or by electrical means. Disclosed methods include providing an ionizing signal to the ionizing wire to thereby produce charge carriers and rotating the frame relative to the housing to thereby clean contaminant byproducts off of the ionizing wire.
    Type: Application
    Filed: May 20, 2014
    Publication date: November 26, 2015
    Applicant: ILLINOIS TOOL WORKS INC.
    Inventors: Peter GEFTER, Aleksey KLOCHKOV, Leslie W. PARTRIDGE