Patents by Inventor Alan R. Lewis

Alan R. Lewis 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: 10646893
    Abstract: A method of calibrating the jetting profile includes applying voltage to a piezoelectric actuator to move a valve closure structure between non-impact and impact positions, sensing the position of the valve closure structure, establishing a reference point using voltage and position data, and using the reference point to adjust the voltage applied. Another method uses a mechanical stop to calibrate a jetting system. This method includes applying voltage to the piezoelectric actuator to move the valve closure structure between non-impact and impact calibration positions, sensing the position of the valve closure structure, generating voltage and position calibration data, establishing a master reference point using this data, and using the master reference point to determine wear of at least one of: the piezoelectric actuator and the valve closure structure. Another method of operating a jetting system includes the user inputting information into a control component.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: May 12, 2020
    Assignee: Nordson Corporation
    Inventors: Christopher Burzo, Michael Gorman, Alan R. Lewis, Cutler Crowell, III
  • Publication number: 20190240688
    Abstract: Systems and methods for applying a liquid coating to a substrate are disclosed herein. One exemplary method includes calibrating flow rate of a material through a coating system. A target flow rate for the material through a spray nozzle is received, a first operating pressure of the coating system based upon the target flow rate is calculated, and the material is ejected onto a least part of a surface with the material flowing through the spray nozzle at the first operating pressure of the coating system. If it is determined that a difference between an operating flow rate and the target flow rate is outside of a predetermined control range, the operating pressure is adjusted to a second operating pressure and at least part of the substrate is sprayed with the material flowing through the spray nozzle at the second operating pressure of the coating system.
    Type: Application
    Filed: February 8, 2018
    Publication date: August 8, 2019
    Inventors: Timothy A. Girvin, Camille I. Sybert, Alan R. Lewis, Gary A. Kephart
  • Publication number: 20190240689
    Abstract: Systems and methods for applying a liquid coating to a substrate are disclosed herein. One exemplary method includes calibrating flow rate of a material through a coating system. A target flow rate for the material through a spray nozzle is received, a first operating pressure of the coating system based upon the target flow rate is calculated, and the material is ejected onto a least part of a surface with the material flowing through the spray nozzle at the first operating pressure of the coating system. Subsequent to a comparison between an operating flow rate and the target flow rate, the operating pressure is adjusted to a second operating pressure and at least part of the substrate is sprayed with the material flowing through the spray nozzle at the second operating pressure of the coating system.
    Type: Application
    Filed: November 1, 2018
    Publication date: August 8, 2019
    Inventors: Timothy A. Girvin, Camille I. Sybert, Alan R. Lewis, Gary A. Kephart
  • Patent number: 10076765
    Abstract: Systems and methods related to dispensing fluid and controlling a dispensing operation. The system includes a fluid dispenser including an inlet and an outlet, the dispenser being operable to start and stop the flow of the fluid from the outlet onto a substrate. The system also includes a fluid supply reservoir adapted to hold the fluid, and having an outlet coupled in fluid communication with the inlet of the fluid dispenser to establish a flow path for the fluid between the fluid supply reservoir and the outlet of the fluid dispenser. The fluid supply reservoir further includes a pneumatic input coupled to an air flow path adapted to receive pressurized air for forcing the fluid from the outlet of the reservoir. An electronic air flow meter device is operatively coupled to the air flow path to produce electrical output signals.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: September 18, 2018
    Assignee: Nordson Corporation
    Inventors: Stephen R. des Jardins, Alan R. Lewis, Yuriy Suhinin
  • Publication number: 20180221910
    Abstract: A method of calibrating the jetting profile includes applying voltage to a piezoelectric actuator to move a valve closure structure between non-impact and impact positions, sensing the position of the valve closure structure, establishing a reference point using voltage and position data, and using the reference point to adjust the voltage applied. Another method uses a mechanical stop to calibrate a jetting system. This method includes applying voltage to the piezoelectric actuator to move the valve closure structure between non-impact and impact calibration positions, sensing the position of the valve closure structure, generating voltage and position calibration data, establishing a master reference point using this data, and using the master reference point to determine wear of at least one of: the piezoelectric actuator and the valve closure structure. Another method of operating a jetting system includes the user inputting information into a control component.
    Type: Application
    Filed: August 31, 2016
    Publication date: August 9, 2018
    Inventors: Christopher BURZO, Michael GORMAN, Alan R. LEWIS, Cutler CROWELL, III
  • Publication number: 20180214901
    Abstract: Systems and methods for inspecting and cleaning a nozzle of a dispenser are disclosed. The systems may include a platform supporting a cleaning substrate. The cleaning substrate may have a plurality of hook structures configured to remove a material from the nozzle. The systems may also include a camera configured to capture an image of the nozzle and a controller configured to control the system. The methods may include providing a cleaning substrate having a plurality of hook structures, and moving at least one of the nozzle and the cleaning substrate relative to the other to remove a material from the nozzle. The methods may also include capturing an image of the nozzle after dispensing with a camera, processing the image to generate a value, utilizing the value to determine if the nozzle should be cleaned, and if the determination is that the nozzle should be cleaned, cleaning the nozzle.
    Type: Application
    Filed: January 15, 2018
    Publication date: August 2, 2018
    Inventors: Ralph C. Nelson, Jared Wilburn, Alan R. Lewis
  • Publication number: 20180200749
    Abstract: A jetting dispensing system includes a dispenser body with a fluid chamber and a valve element, and a progressive cavity pump for feeding fluid into the fluid chamber. The progressive cavity pump propagates a plurality of separated cavities of fluid along an elongate length thereof to generate and maintain an incoming fluid pressure at a fluid inlet and the fluid chamber of the dispenser body. Accordingly, the droplets that are generated from operating the valve element in jetting dispensing cycles may define a volume of fluid, regardless of variations in fluid viscosity and variations in operational speed of the jetting dispensing system. Furthermore, the velocity profile of fluid exiting the dispenser body may be more constant to avoid causing changes in fluid velocity that can damage fluid particles and/or cause rotational tumbling or blossoming of the droplet while in flight towards the substrate.
    Type: Application
    Filed: August 2, 2016
    Publication date: July 19, 2018
    Inventors: Cutler CROWELL, III, Alan R. LEWIS
  • Publication number: 20180043381
    Abstract: Systems and methods for two-component mixing in a jetting dispenser are provided herein. A jetting dispenser includes a fluid chamber having a first fluid inlet providing a first fluid and a second fluid inlet providing a second fluid, wherein the first fluid and the second fluid mix within the fluid chamber into a mixed fluid. A method for dispensing a mixed fluid from a dispenser having a fluid chamber in fluid communication with first and second fluid inlets is also provided. A first fluid is provided to the fluid chamber via the first fluid inlet and a second fluid is provided to the fluid chamber via the second fluid inlet. At least a portion of a valve element is moved relative to a valve seat to cause dynamic mixing of the first fluid and the second fluid within the fluid chamber to produce the mixed fluid that is dispensed.
    Type: Application
    Filed: August 13, 2016
    Publication date: February 15, 2018
    Inventors: Per Orla-Jensen, Alan R. Lewis, David Padgett
  • Patent number: 9847265
    Abstract: Methods and systems of accurately dispensing a viscous fluid onto a substrate. In an embodiment, a method includes using an electronic flow meter device to produce electrical flow meter output signals and performing a responsive control function in a closed loop manner by adjusting at least one dispensing parameter to correct for a difference between an output data set and a reference data set. In another embodiment, a system includes a control operatively coupled to a gas flow meter device and to a weigh scale allowing for a density of an amount of viscous material to be determined. In another embodiment, a method includes using a control coupled to both a gas flow meter device and a weigh scale and performing a responsive control function in a closed loop manner by adjusting at least one dispensing parameter using gas flow meter output signals and weigh scale output signals.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: December 19, 2017
    Assignee: Nordson Corporation
    Inventors: Joseph E. Donner, Michael Gorman, Christopher L. Giusti, Alan R. Lewis, Horatio Quinones, Thomas L. Ratledge, Yuriy Suhinin
  • Publication number: 20170345728
    Abstract: Methods and systems of accurately dispensing a viscous fluid onto a substrate. In an embodiment, a method includes using an electronic flow meter device to produce electrical flow meter output signals and performing a responsive control function in a closed loop manner by adjusting at least one dispensing parameter to correct for a difference between an output data set and a reference data set. In another embodiment, a system includes a control operatively coupled to a gas flow meter device and to a weigh scale allowing for a density of an amount of viscous material to be determined. In another embodiment, a method includes using a control coupled to both a gas flow meter device and a weigh scale and performing a responsive control function in a closed loop manner by adjusting at least one dispensing parameter using gas flow meter output signals and weigh scale output signals.
    Type: Application
    Filed: August 15, 2017
    Publication date: November 30, 2017
    Inventors: Joseph E. Donner, Michael Gorman, Christopher L. Giusti, Alan R. Lewis, Horatio Quinones, Thomas L. Ratledge, Yuriy Suhinin
  • Publication number: 20170128976
    Abstract: Systems and methods related to dispensing fluid and controlling a dispensing operation. The system includes a fluid dispenser including an inlet and an outlet, the dispenser being operable to start and stop the flow of the fluid from the outlet onto a substrate. The system also includes a fluid supply reservoir adapted to hold the fluid, and having an outlet coupled in fluid communication with the inlet of the fluid dispenser to establish a flow path for the fluid between the fluid supply reservoir and the outlet of the fluid dispenser. The fluid supply reservoir further includes a pneumatic input coupled to an air flow path adapted to receive pressurized air for forcing the fluid from the outlet of the reservoir. An electronic air flow meter device is operatively coupled to the air flow path to produce electrical output signals.
    Type: Application
    Filed: January 25, 2017
    Publication date: May 11, 2017
    Inventors: Stephen R. des Jardins, Alan R. Lewis, Yuriy Suhinin
  • Patent number: 9579678
    Abstract: Systems and methods related to dispensing fluid and controlling a dispensing operation. The system includes a fluid dispenser including an inlet and an outlet, the dispenser being operable to start and stop the flow of the fluid from the outlet onto a substrate. A fluid supply reservoir adapted to hold the fluid, and having an outlet coupled in fluid communication with the inlet of the fluid dispenser to establish a flow path for the fluid between the fluid supply reservoir and the outlet of the fluid dispenser. The fluid supply reservoir further includes a pneumatic input coupled to an air flow path adapted to receive pressurized air for forcing the fluid from the outlet of the reservoir. An electronic air mass flow meter device is operatively coupled to the air flow path to produce electrical output signals proportional to the mass flow rate of the air flowing through the pneumatic input.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: February 28, 2017
    Assignee: Nordson Corporation
    Inventors: Stephen R. des Jardins, Alan R. Lewis, Yuriy Suhinin
  • Publication number: 20160354791
    Abstract: A jet cartridge for jetting fluid material includes a body adapted to receive fluid material, and a fluid passage defined within the body and extending along a longitudinal axis thereof. At least a portion of the fluid passage extends obliquely relative to the longitudinal axis. The body is adapted to receive heat from a heating element and to transfer the heat to the fluid material flowing through the fluid passage. A method of jetting fluid material with a jet dispenser including a jet cartridge includes receiving fluid material into the jet cartridge, directing the fluid material through the jet cartridge along a longitudinal axis thereof and obliquely relative to the longitudinal axis, heating the fluid material directed through fluid cartridge to a target temperature, maintaining the target temperature as the fluid material enters a nozzle, and jetting the heated fluid material through the nozzle.
    Type: Application
    Filed: June 4, 2015
    Publication date: December 8, 2016
    Inventors: Stephen R. des Jardins, Alan R. Lewis, Jared Wilburn, Robert J. Wright
  • Publication number: 20160193619
    Abstract: Systems and methods related to dispensing fluid and controlling a dispensing operation. The system includes a fluid dispenser including an inlet and an outlet, the dispenser being operable to start and stop the flow of the fluid from the outlet onto a substrate. A fluid supply reservoir adapted to hold the fluid, and having an outlet coupled in fluid communication with the inlet of the fluid dispenser to establish a flow path for the fluid between the fluid supply reservoir and the outlet of the fluid dispenser. The fluid supply reservoir further includes a pneumatic input coupled to an air flow path adapted to receive pressurized air for forcing the fluid from the outlet of the reservoir. An electronic air mass flow meter device is operatively coupled to the air flow path to produce electrical output signals proportional to the mass flow rate of the air flowing through the pneumatic input.
    Type: Application
    Filed: January 7, 2015
    Publication date: July 7, 2016
    Inventors: Stephen R. des Jardins, Alan R. Lewis, Yuriy Suhinin
  • Publication number: 20160005668
    Abstract: Methods and systems of accurately dispensing a viscous fluid onto a substrate. In an embodiment, a method includes using an electronic flow meter device to produce electrical flow meter output signals and performing a responsive control function in a closed loop manner by adjusting at least one dispensing parameter to correct for a difference between an output data set and a reference data set. In another embodiment, a system includes a control operatively coupled to a gas flow meter device and to a weigh scale allowing for a density of an amount of viscous material to be determined. In another embodiment, a method includes using a control coupled to both a gas flow meter device and a weigh scale and performing a responsive control function in a closed loop manner by adjusting at least one dispensing parameter using gas flow meter output signals and weigh scale output signals.
    Type: Application
    Filed: September 16, 2015
    Publication date: January 7, 2016
    Inventors: Joseph E. Donner, Michael Gorman, Christopher L. Giusti, Alan R. Lewis, Horatio Quinones, Thomas L. Ratledge, Yuriy Suhinin
  • Publication number: 20100221435
    Abstract: A air jet source is used in conjunction with a micro-extrusion printhead assembly in a micro-extrusion system to bias extruded material onto a target substrate. The printhead assembly utilizes paste valves or other feed system to push/draw an extrusion material through dispensing orifices defined on an extrusion needle, nozzle or stacked plate printhead as the printhead assembly is moved over the substrate. The air jet source is positioned near the dispensing outlets, and directs a gas jet against the extruded material such that the extruded material is reliably biased against the target substrate. Multiple dispensing orifices are defined in a paste dispensing needle to improve starts and stops, as well as improving overall ink distribution. Two independently activated air sources and multiple air jet outlets are utilized to improve control over the quality of bus bars formed by the extruded material.
    Type: Application
    Filed: May 13, 2010
    Publication date: September 2, 2010
    Applicant: Palo Alto Research Center Incorporated
    Inventors: David K. Fork, Scott E. Solberg, Alan R. Lewis
  • Patent number: 7350812
    Abstract: An expanded propylene vehicle passenger restraint. The restraint includes a back portion, seat portion and side portions integrally joined together. A removable back insert is mounted to the back portion and a leg separator is mounted to the seat portion. The method of producing the restraint includes the step of scanning the configuration of the restraint into a router for shaping a solid plastic piece in accordance with the configuration.
    Type: Grant
    Filed: March 9, 2004
    Date of Patent: April 1, 2008
    Assignee: Bald Spot Racing, LLC
    Inventor: Alan R. Lewis
  • Patent number: 6955946
    Abstract: A system for dispensing a viscous material onto a substrate which includes a dispensing element, a viscous material reservoir and a metering device coupled between the reservoir and the dispensing element for metering a variable amount of a viscous material through the dispensing element. The dispensing element and metering device can be moved by a positioner along a predetermined pattern adjacent a surface of a substrate. A weigh scale located adjacent the substrate receives a metered amount of the viscous material and produces signals representative of a variable weight of the material dispensed during a predetermined time interval. A controller adjusts a speed of movement of the positioner along the predetermined pattern to cause the dispensing element to dispense a desired amount of material based on a calculated flow rate.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: October 18, 2005
    Assignee: Nordson Corporation
    Inventors: Carlos E. Bouras, Duong T. La., Alan R. Lewis, Mark S. Meier, Alec J. Babiarz
  • Publication number: 20040169361
    Abstract: An expanded propylene vehicle passenger restraint. The restraint includes a back portion, seat portion and side portions integrally joined together. A removable back insert is mounted to the back portion and a leg separator is mounted to the seat portion. The method of producing the restraint includes the step of scanning the configuration of the restraint into a router for shaping a solid plastic piece in accordance with the configuration.
    Type: Application
    Filed: March 9, 2004
    Publication date: September 2, 2004
    Inventor: Alan R. Lewis
  • Patent number: 6733710
    Abstract: An expanded propylene vehicle passenger restraint. The restraint includes a back portion, seat portion and side portions integrally joined together. A removable back insert is mounted to the back portion and a leg separator is mounted to the seat portion. The method of producing the restraint includes the step of scanning the configuration of the restraint into a router for shaping a solid plastic piece in accordance with the configuration.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: May 11, 2004
    Assignee: Bald Spot Racing, LLC
    Inventor: Alan R. Lewis