Patents by Inventor Paul G. Janitch

Paul G. Janitch 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).

  • Publication number: 20210010845
    Abstract: There is disclosed a probe used with a measurement instrument including a pulse circuit for generating pulses. A coaxial connector is secured to the probe case so that the probe case is electrically connected to the ground shield, A center rod has a top end received in the probe case and to extend into a process liquid. The center rod is electrically connected to the center terminal for conducting the pulses. Ground rods are spaced around the center rod and are secured to the probe case. The probe provides an open configuration less susceptible to build-up between the center rod and the ground rods. One or more of the ground rods may by tubes, connected to a flushing port, with nozzles for cleaning the enter rod. Another ground rod may be tubular for carrying a conductor connected to a bottom of the center rod for bottom-up measurement.
    Type: Application
    Filed: July 10, 2019
    Publication date: January 14, 2021
    Applicant: Magnetrol International, Incorporated
    Inventor: Paul G. Janitch
  • Patent number: 10760941
    Abstract: There is disclosed herein a probe comprising a process connection for mounting to a process vessel. A sealed connector is for connection to the measurement instrument and includes an extension sleeve. A return tube extends from the extension sleeve and is secured to the process connection, the return tube has a connector end proximate the sealed connector and a distal end including vent openings below the process connection. A process tube is connected to the distal end of the return tube and extends into the process vessel. A center conductor is coaxial with the return tube and the process tube for conducting the pulses. A target tube is coaxial with and received within the return tube to define a condensation return path therebetween. The target tube extends downward from a near end at the return tube connector end by bottom end to a position below the process connection. The target tube includes apertures at the near end opening into the condensation return path.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: September 1, 2020
    Assignee: Magnetrol International, Incorporated
    Inventor: Paul G. Janitch
  • Patent number: 10644390
    Abstract: A through air measurement instrument comprises a housing for mounting to a process vessel and including a waveguide. A control circuit in the housing controls operation of the instrument for determining level. An RF circuit board in the housing is operatively controlled by the control circuit and includes a microwave transceiver circuit connected via a coupler to strip line traces on the printed circuit board for coupling a high frequency radar signal with the waveguide for measuring level. A multi-function RF shield comprises a cover for the RF circuit board. The cover includes a metallic covering on an inside surface for capping the waveguide and providing an RF shield.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: May 5, 2020
    Assignee: Magnetrol International, Incorporated
    Inventors: Paul G. Janitch, Feng Tang
  • Patent number: 10451468
    Abstract: A measurement instrument comprises a housing including a measurement circuit for measuring a process variable. A primary element is adapted to extend into a process vessel. The primary element includes an elongate hollow sleeve open to an interior of the process vessel, in use. A process adapter operatively connects the housing to the primary element for securing the instrument to the process vessel. The process adapter comprises a through opening. A seal adapter is received in the process adapter through opening. The seal adapter comprises a central bore opening into the hollow sleeve. The process adapter comprises a flushing port in communication with the through opening and an annular space between the seal adapter and the process adapter intersecting the flushing port. The seal adapter comprises a plurality of jet passages aligned at the annular space and opening into the bore.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: October 22, 2019
    Assignee: Magnetrol International, Incorporated
    Inventor: Paul G. Janitch
  • Publication number: 20180306631
    Abstract: There is disclosed herein a probe comprising a process connection for mounting to a process vessel. A sealed connector is for connection to the measurement instrument and includes an extension sleeve. A return tube extends from the extension sleeve and is secured to the process connection, the return tube has a connector end proximate the sealed connector and a distal end including vent openings below the process connection. A process tube is connected to the distal end of the return tube and extends into the process vessel. A center conductor is coaxial with the return tube and the process tube for conducting the pulses. A target tube is coaxial with and received within the return tube to define a condensation return path therebetween. The target tube extends downward from a near end at the return tube connector end by bottom end to a position below the process connection. The target tube includes apertures at the near end opening into the condensation return path.
    Type: Application
    Filed: February 14, 2018
    Publication date: October 25, 2018
    Applicant: Magnetrol International, Incorporated
    Inventor: Paul G. Janitch
  • Publication number: 20180209834
    Abstract: A measurement instrument comprises a housing including a measurement circuit for measuring a process variable. A primary element is adapted to extend into a process vessel. The primary element includes an elongate hollow sleeve open to an interior of the process vessel, in use. A process adapter operatively connects the housing to the primary element for securing the instrument to the process vessel. The process adapter comprises a through opening. A seal adapter is received in the process adapter through opening. The seal adapter comprises a central bore opening into the hollow sleeve. The process adapter comprises a flushing port in communication with the through opening and an annular space between the seal adapter and the process adapter intersecting the flushing port. The seal adapter comprises a plurality of jet passages aligned at the annular space and opening into the bore.
    Type: Application
    Filed: August 14, 2017
    Publication date: July 26, 2018
    Inventor: Paul G. Janitch
  • Publication number: 20180212316
    Abstract: A through air measurement instrument comprises a housing for mounting to a process vessel and including a waveguide. A control circuit in the housing controls operation of the instrument for determining level. An RF circuit board in the housing is operatively controlled by the control circuit and includes a microwave transceiver circuit connected via a coupler to strip line traces on the printed circuit board for coupling a high frequency radar signal with the waveguide for measuring level. A multi-function RF shield comprises a cover for the RF circuit board. The cover includes a metallic covering on an inside surface for capping the waveguide and providing an RF shield.
    Type: Application
    Filed: August 14, 2017
    Publication date: July 26, 2018
    Inventors: Paul G. Janitch, Feng Tang
  • Patent number: 9461427
    Abstract: A process measurement instrument comprises a process adaptor for mounting to a process vessel or the like and operatively associated with a sensing element for sensing a process variable and including plural electrical conductors. An instrument housing includes a control circuit. A connector assembly is operatively disposed between the instrument housing and the process adaptor for removably connecting the instrument housing to the process adaptor. The connector assembly comprises a first connector including a cylindrical connector body having an offset boss with a first multi-pin wire connector.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: October 4, 2016
    Assignee: Magnetrol International, Incorporated
    Inventor: Paul G. Janitch
  • Publication number: 20160233633
    Abstract: A process measurement instrument comprises a process adaptor for mounting to a process vessel or the like and operatively associated with a sensing element for sensing a process variable and including plural electrical conductors. An instrument housing includes a control circuit. A connector assembly is operatively disposed between the instrument housing and the process adaptor for removably connecting the instrument housing to the process adaptor. The connector assembly comprises a first connector including a cylindrical connector body having an offset boss with a first multi-pin wire connector.
    Type: Application
    Filed: February 11, 2015
    Publication date: August 11, 2016
    Inventor: Paul G. Janitch
  • Patent number: 9279705
    Abstract: A probe for use with a measurement instrument includes a circuit connected to the probe. The probe comprises a process adaptor for mounting to a process vessel and including a through bore extending from a connector end to a process end. A tubular body is received in the process adaptor at the connector end and has an outer diameter less than an inner diameter of the process adaptor at the connector end to define a cavity therebetween. The cavity is open to the process vessel. A coupling secures the body to the process adaptor. A center conductor is coaxial with the tubular body and the process adaptor. A seal element is disposed between the tubular body and the center conductor. Process pressure in the process vessel increases compressive force between the tubular body and the seal element.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: March 8, 2016
    Assignee: Magnetrol International, Incorporated
    Inventor: Paul G. Janitch
  • Patent number: 9217659
    Abstract: A probe defining a transmission line for use with a measurement instrument includes a pulse circuit connected to the probe for generating pulses on the transmission line and receiving reflected pulses on the transmission line. The probe comprises a conductive outer sleeve for mounting to a process vessel. A center conductor is coaxial with the outer sleeve for conducting the pulses. A primary seal element between the outer sleeve and the center conductor is spaced a select distance from a near end of the outer sleeve. A secondary seal element between the outer sleeve and the center conductor is spaced proximate the near end of the outer sleeve, to define a generally tubular space between the primary seal element and the secondary seal element. A dielectric insert fills a portion of the tubular space proximate the secondary seal element. A leak detection tube is in the tubular space between the dielectric insert and the primary seal element.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: December 22, 2015
    Assignee: Magnetrol International, Incorporated
    Inventor: Paul G. Janitch
  • Patent number: 9151838
    Abstract: A probe for use with a measurement instrument includes a circuit connected to the probe. The probe comprises a process adaptor for mounting to a process vessel and including a through bore extending from a connector end to a process end. A counterbore at the connector end defines a shoulder. A support assembly is received in the counterbore and rests on the shoulder. The support assembly comprises an annular rod support having a through opening with a tension rod extending through the opening and secured at opposite sides of the annular rod support. A locking nut secures the support assembly in the counterbore to maintain the annular rod support in compression. A probe rod extends from a process end of the tension rod. A seal assembly is operatively secured to the process adaptor at the connector end with the seal pin in electrical contact with a connector end of the tension rod.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: October 6, 2015
    Assignee: Magnetrol International, Inc.
    Inventor: Paul G. Janitch
  • Patent number: 9069056
    Abstract: A probe defining a transmission line is used with a measurement instrument including a pulse circuit connected to the probe for generating pulses on the transmission line and receiving reflected pulses on the transmission line. The probe comprises an adapter for mounting to a process vessel. A conductive outer sleeve is secured to the adapter. A center conductor is coaxial with the outer sleeve for conducting the pulses. The conductive outer sleeve has a connector end proximate the adapter and a distal end to extend into a processed liquid. The outer sleeve has a geometric discontinuity defining a referenced target producing an impedance change at a position between the adapter and the distal end at a location in a process vapor region above a processed liquid.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: June 30, 2015
    Assignee: Magnetrol International, Incorporated
    Inventor: Paul G. Janitch
  • Publication number: 20140109699
    Abstract: A probe for use with a measurement instrument includes a circuit connected to the probe. The probe comprises a process adaptor for mounting to a process vessel and including a through bore extending from a connector end to a process end. A tubular body is received in the process adaptor at the connector end and has an outer diameter less than an inner diameter of the process adaptor at the connector end to define a cavity therebetween. The cavity is open to the process vessel. A coupling secures the body to the process adaptor. A center conductor is coaxial with the tubular body and the process adaptor. A seal element is disposed between the tubular body and the center conductor. Process pressure in the process vessel increases compressive force between the tubular body and the seal element.
    Type: Application
    Filed: October 22, 2012
    Publication date: April 24, 2014
    Applicant: Magnetrol International, Incorporated
    Inventor: Paul G. Janitch
  • Publication number: 20140104099
    Abstract: A probe defining a transmission line is used with a measurement instrument including a pulse circuit connected to the probe for generating pulses on the transmission line and receiving reflected pulses on the transmission line. The probe comprises an adapter for mounting to a process vessel. A conductive outer sleeve is secured to the adapter. A center conductor is coaxial with the outer sleeve for conducting the pulses. The conductive outer sleeve has a connector end proximate the adapter and a distal end to extend into a processed liquid. The outer sleeve has a geometric discontinuity defining a referenced target producing an impedance change at a position between the adapter and the distal end at a location in a process vapor region above a processed liquid.
    Type: Application
    Filed: October 17, 2012
    Publication date: April 17, 2014
    Applicant: Magnetrol International, Incorporated
    Inventor: Paul G. Janitch
  • Publication number: 20140103950
    Abstract: A probe defining a transmission line for use with a measurement instrument includes a pulse circuit connected to the probe for generating pulses on the transmission line and receiving reflected pulses on the transmission line. The probe comprises a conductive outer sleeve for mounting to a process vessel. A center conductor is coaxial with the outer sleeve for conducting the pulses. A primary seal element between the outer sleeve and the center conductor is spaced a select distance from a near end of the outer sleeve. A secondary seal element between the outer sleeve and the center conductor is spaced proximate the near end of the outer sleeve, to define a generally tubular space between the primary seal element and the secondary seal element. A dielectric insert fills a portion of the tubular space proximate the secondary seal element. A leak detection tube is in the tubular space between the dielectric insert and the primary seal element.
    Type: Application
    Filed: October 17, 2012
    Publication date: April 17, 2014
    Applicant: Magnetrol International, Incorporated
    Inventor: Paul G. Janitch
  • Patent number: 7874210
    Abstract: An ultrasonic point level measurement instrument comprises a measurement circuit and a transducer. The transducer transmits and receives acoustic signals under control of the measurement circuit. An improvement in the transducer comprises a transducer housing including a pair of spaced apart legs to define a gap therebetween. Each leg includes an interior cavity. A pair of crystal assemblies each comprise a crystal mounted to a circuit board. The circuit board includes conduction paths for connection between the crystal and a terminal pad. Each crystal assembly is received in the interior cavity of one of the legs with the circuit board spacing the crystal from walls of the leg. A pair of cables are each connected between the measurement circuit and the terminal pad of one of the crystal assemblies so that the measurement circuit detects presence of a material in the gap.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: January 25, 2011
    Assignee: Magnetrol International, Inc.
    Inventors: Kevin M. Haynes, Paul G. Janitch, James A. Bosserman
  • Publication number: 20090056451
    Abstract: An ultrasonic point level measurement instrument comprises a measurement circuit and a transducer. The transducer transmits and receives acoustic signals under control of the measurement circuit. An improvement in the transducer comprises a transducer housing including a pair of spaced apart legs to define a gap therebetween. Each leg includes an interior cavity. A pair of crystal assemblies each comprise a crystal mounted to a circuit board. The circuit board includes conduction paths for connection between the crystal and a terminal pad. Each crystal assembly is received in the interior cavity of one of the legs with the circuit board spacing the crystal from walls of the leg. A pair of cables are each connected between the measurement circuit and the terminal pad of one of the crystal assemblies so that the measurement circuit detects presence of a material in the gap.
    Type: Application
    Filed: October 27, 2008
    Publication date: March 5, 2009
    Inventors: Kevin M. Haynes, Paul G. Janitch, James A. Bosserman
  • Patent number: 7466124
    Abstract: A magnetostrictive level sensing instrument is used for sensing level in a process vessel and comprises an elongate tube having a near end and a distal end. A magnet is selectively positionable proximate the tube responsive to level of the processed material. A magnetostrictive wire in the tube has first and second ends. The second end is operatively secured at the tube distal end. A pair of shear mode crystals are mounted proximate the tube near end. The crystals sandwich the magnetostrictive wire proximate the first end. A sensing circuit is operatively connected to the magnetostrictive wire and the pair of crystals for generating an electrical pulse on the magnetostrictive wire whereby a magnetic field produced by the magnet interacts with the electrical pulse to produce a torsional wave on the magnetostrictive wire sensed by the pair of crystals.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: December 16, 2008
    Assignee: Magnetrol International, Inc.
    Inventors: Paul G. Janitch, Timothy S. Sussman
  • Publication number: 20080061772
    Abstract: A magnetostrictive level sensing instrument is used for sensing level in a process vessel and comprises an elongate tube having a near end and a distal end. A magnet is selectively positionable proximate the tube responsive to level of the processed material. A magnetostrictive wire in the tube has first and second ends. The second end is operatively secured at the tube distal end. A pair of shear mode crystals are mounted proximate the tube near end. The crystals sandwich the magnetostrictive wire proximate the first end. A sensing circuit is operatively connected to the magnetostrictive wire and the pair of crystals for generating an electrical pulse on the magnetostrictive wire whereby a magnetic field produced by the magnet interacts with the electrical pulse to produce a torsional wave on the magnetostrictive wire sensed by the pair of crystals.
    Type: Application
    Filed: September 8, 2006
    Publication date: March 13, 2008
    Inventors: Paul G. Janitch, Timothy S. Sussman