Patents by Inventor David N. Padgett
David N. Padgett 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).
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Patent number: 11919020Abstract: Methods of dispensing fluid are disclosed. A first applicator is positioned above a first dispense site at a first dispense region of a first electronic substrate by moving the first applicator using a primary positioner. A second applicator is simultaneously positioned above a first dispense site at a second dispense region of the first electronic substrate by moving the second applicator together with the first applicator using the primary positioner and moving the second applicator relative to the first applicator using a secondary positioner. It is then determined that the first or the second dispense region is misaligned relative to the other of the first or the second dispense region.Type: GrantFiled: November 15, 2022Date of Patent: March 5, 2024Assignee: Nordson CorporationInventors: Christopher L Giusti, Philip P. Maiorca, Mark S. Meier, David N. Padgett
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Publication number: 20230081663Abstract: Methods of dispensing fluid are disclosed. A first applicator is positioned above a first dispense site at a first dispense region of a first electronic substrate by moving the first applicator using a primary positioner. A second applicator is simultaneously positioned above a first dispense site at a second dispense region of the first electronic substrate by moving the second applicator together with the first applicator using the primary positioner and moving the second applicator relative to the first applicator using a secondary positioner. It is then determined that the first or the second dispense region is misaligned relative to the other of the first or the second dispense region.Type: ApplicationFiled: November 15, 2022Publication date: March 16, 2023Inventors: Christopher L. GIUSTI, Philip P. Maiorca, Mark S. Meier, David N. Padgett
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Patent number: 10737286Abstract: Methods for simultaneously dispensing a first fluid pattern at a first dispense region with a first applicator and a second fluid pattern at a second dispense region with a second applicator. The first and second applicators are moved toward their respective dispense regions with a positioner. While dispensing, the second applicator is moved relative to the first applicator in a direction or directions parallel to a first axis, a second axis, and/or a third axis, the axes being mutually orthogonal. The first dispense region may be provided with a unique first tilt and/or a unique first contour relative to the reference plane and along the third axis. Systems for dispensing fluid include a primary positioner supporting a first applicator, and a secondary positioner coupled to the primary positioner and supporting a second applicator and configured to move the second applicator relative to the first applicator.Type: GrantFiled: November 2, 2018Date of Patent: August 11, 2020Assignee: Nordson CorporationInventors: Christopher L. Giusti, Philip P. Maiorca, Mark S. Meier, David N. Padgett
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Publication number: 20190070623Abstract: Methods for simultaneously dispensing a first fluid pattern at a first dispense region with a first applicator and a second fluid pattern at a second dispense region with a second applicator. The first and second applicators are moved toward their respective dispense regions with a positioner. While dispensing, the second applicator is moved relative to the first applicator in a direction or directions parallel to a first axis, a second axis, and/or a third axis, the axes being mutually orthogonal. The first dispense region may be provided with a unique first tilt and/or a unique first contour relative to the reference plane and along the third axis. Systems for dispensing fluid include a primary positioner supporting a first applicator, and a secondary positioner coupled to the primary positioner and supporting a second applicator and configured to move the second applicator relative to the first applicator.Type: ApplicationFiled: November 2, 2018Publication date: March 7, 2019Inventors: Christopher L. Giusti, Philip P. Maiorca, Mark S. Meier, David N. Padgett
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Publication number: 20190001363Abstract: Systems for dispensing fluid in a first fluid pattern at a first dispense region and in a second fluid pattern at a second dispense region on one or more electronic substrates are disclosed. The system includes a primary positioner, a secondary positioner providing movement in the X axis direction and the Y axis direction relative to the primary positioner, a first applicator for dispensing fluid while being moved by the primary positioner, a second applicator for dispensing fluid while being moved by the primary positioner and/or the secondary positioner, a camera, and a controller. The controller determines a position of the first dispense region and a position of the second dispense region, controls movement of the primary positioner and the secondary positioner, and controls the first and second applicators to simultaneously dispense the first and second fluid patterns onto the respective first and second dispense regions.Type: ApplicationFiled: September 9, 2018Publication date: January 3, 2019Inventors: Christopher L. Giusti, Philip P. Maiorca, Mark S. Meier, David N. Padgett
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Publication number: 20190001362Abstract: Methods of dispensing fluid are disclosed. A first applicator is positioned above a first dispense site at a first dispense region of a first electronic substrate by moving the first applicator using a primary positioner. A second applicator is simultaneously positioned above a first dispense site at a second dispense region of the first electronic substrate by moving the second applicator together with the first applicator using the primary positioner and moving the second applicator relative to the first applicator using a secondary positioner. It is then determined that the first or the second dispense region is misaligned relative to the other of the first or the second dispense region.Type: ApplicationFiled: September 9, 2018Publication date: January 3, 2019Inventors: Christopher L. Giusti, Philip P. Maiorca, Mark S. Meier, David N. Padgett
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Publication number: 20190001361Abstract: Method of dispensing fluid are disclosed. The method initially determines, based upon an image of a first electronic substrate, that a first or a second dispense region is misaligned relative to the other of the first or the second dispense region. Fluid is dispensed from a first applicator while moving the first applicator using a primary positioner on the first electronic substrate to form a first fluid pattern. Fluid is simultaneously dispensed from a second applicator while moving the second applicator using the primary positioner and a secondary positioner. The method then determines, based upon an image of a second electronic substrate, that a first and a second dispense region of the second electronic substrate are aligned relative to one another. Fluid is simultaneously dispensed from the first applicator and the second applicator while moving the first applicator and the second applicator together using the primary positioner with first applicator.Type: ApplicationFiled: September 9, 2018Publication date: January 3, 2019Inventors: Christopher L. Giusti, Philip P. Maiorca, Mark S. Meier, David N. Padgett
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Patent number: 10150131Abstract: Methods for simultaneously dispensing a first fluid pattern at a first dispense region with a first applicator and a second fluid pattern at a second dispense region with a second applicator. The first and second applicators are moved toward their respective dispense regions with a positioner. While dispensing, the second applicator is moved relative to the first applicator in a direction or directions parallel to a first axis, a second axis, and/or a third axis, the axes being mutually orthogonal. The first dispense region may be provided with a unique first tilt and/or a unique first contour relative to the reference plane and along the third axis. Systems for dispensing fluid include a primary positioner supporting a first applicator, and a secondary positioner coupled to the primary positioner and supporting a second applicator and configured to move the second applicator relative to the first applicator.Type: GrantFiled: June 16, 2017Date of Patent: December 11, 2018Assignee: Nordson CorporationInventors: Christopher L. Giusti, Philip P. Maiorca, Mark S. Meier, David N. Padgett
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Patent number: 9789511Abstract: Jetting devices and methods for dispensing a fluid material from a fluid supply. A jetting device includes a fluid module configured to be coupled with the fluid supply and to dispense the fluid material. The fluid module includes a valve seat and a valve element configured to move relative to the valve seat over a stroke length, and a valve stop configured to position the valve element relative to the valve seat for determining the stroke length. The jetting device further includes a drive module configured to actuate the fluid module and includes a drive pin configured to move the valve element toward the valve seat. The drive pin is configured to be rotated to cause rotation of the valve stop for adjustment of the stroke length. The drive pin may be rotated by a rotation device comprising a motor.Type: GrantFiled: March 12, 2013Date of Patent: October 17, 2017Assignee: Nordson CorporationInventors: Stanley C. Aguilar, David N. Padgett
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Publication number: 20170282207Abstract: Methods for simultaneously dispensing a first fluid pattern at a first dispense region with a first applicator and a second fluid pattern at a second dispense region with a second applicator. The first and second applicators are moved toward their respective dispense regions with a positioner. While dispensing, the second applicator is moved relative to the first applicator in a direction or directions parallel to a first axis, a second axis, and/or a third axis, the axes being mutually orthogonal. The first dispense region may be provided with a unique first tilt and/or a unique first contour relative to the reference plane and along the third axis. Systems for dispensing fluid include a primary positioner supporting a first applicator, and a secondary positioner coupled to the primary positioner and supporting a second applicator and configured to move the second applicator relative to the first applicator.Type: ApplicationFiled: June 16, 2017Publication date: October 5, 2017Inventors: Christopher L. Giusti, Philip P. Maiorca, Mark S. Meier, David N. Padgett
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Publication number: 20170225180Abstract: Jetting devices and methods for dispensing a fluid material from a fluid supply. A jetting device includes a fluid module configured to be coupled with the fluid supply and to dispense the fluid material. The fluid module includes a valve seat and a valve element configured to move relative to the valve seat over a stroke length, and a valve stop configured to position the valve element relative to the valve seat for determining the stroke length. The jetting device further includes a drive module configured to actuate the fluid module and includes a drive pin configured to move the valve element toward the valve seat. The drive pin is configured to be rotated to cause rotation of the valve stop for adjustment of the stroke length. The drive pin may be rotated by a rotation device comprising a motor.Type: ApplicationFiled: April 22, 2017Publication date: August 10, 2017Inventors: Stanley C. Aguilar, David N. Padgett
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Patent number: 9707584Abstract: Methods for simultaneously dispensing a first fluid pattern at a first dispense region with a first applicator and a second fluid pattern at a second dispense region with a second applicator. The first and second applicators are moved toward their respective dispense regions with a positioner. While dispensing, the second applicator is moved relative to the first applicator in a direction or directions parallel to a first axis, a second axis, and/or a third axis, the axes being mutually orthogonal. The first dispense region may be provided with a unique first tilt and/or a unique first contour relative to the reference plane and along the third axis. Systems for dispensing fluid include a primary positioner supporting a first applicator, and a secondary positioner coupled to the primary positioner and supporting a second applicator and configured to move the second applicator relative to the first applicator.Type: GrantFiled: July 9, 2014Date of Patent: July 18, 2017Assignee: Nordson CorporationInventors: Christopher L. Giusti, Philip P. Maiorca, Mark S. Meier, David N. Padgett
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Publication number: 20160252914Abstract: A closed-loop fluid buffer for stabilizing an output pressure of a fluid supply system, in particular a bi-component mixing system, is disclosed. The fluid buffer comprises a fluid cavity having a fluid cavity volume and a fluid cavity wall, the fluid cavity having an inlet and an outlet, where the inlet is adapted to be in fluid communication with at least one fluid reservoir and the outlet is adapted to be in fluid communication with a dispensing applicator. The fluid cavity wall includes at least one flexible buffering portion to allow a volume change of the fluid cavity volume. Systems having such a fluid buffer such as a bi-component mixing system and a bi-component mixing system mounted on an x-y-mover for movement with a dispenser, as well as a method of dispensing a fluid, are also disclosed.Type: ApplicationFiled: October 22, 2014Publication date: September 1, 2016Inventors: David N. PADGETT, Ronny FRANKEN, Bernard LOEHR, Per ORLA-JENSEN
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Publication number: 20160008835Abstract: Methods for simultaneously dispensing a first fluid pattern at a first dispense region with a first applicator and a second fluid pattern at a second dispense region with a second applicator. The first and second applicators are moved toward their respective dispense regions with a positioner. While dispensing, the second applicator is moved relative to the first applicator in a direction or directions parallel to a first axis, a second axis, and/or a third axis, the axes being mutually orthogonal. The first dispense region may be provided with a unique first tilt and/or a unique first contour relative to the reference plane and along the third axis. Systems for dispensing fluid include a primary positioner supporting a first applicator, and a secondary positioner coupled to the primary positioner and supporting a second applicator and configured to move the second applicator relative to the first applicator.Type: ApplicationFiled: July 9, 2014Publication date: January 14, 2016Inventors: Christopher L. Giusti, Philip P. Maiorca, Mark S. Meier, David N. Padgett
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Patent number: 9029740Abstract: Apparatus and methods for heating of one or more substrates with a plurality of independently controllable heating zones. Pressurized air is provided to each of a plurality of independently controlled heater blocks each including a heating element. The pressurized air is heated in the heater blocks and discharged towards one or more regions of the one or more substrates. The amount of power provided to the heating element in one of the heating blocks may be adjusted relative to the amount of power provided to the heating element in another of the heating blocks. The temperature of one heating zone may thereby be adjusted relative to other heating zones so that the temperature of different heating zones for the one or more substrates may be independently controlled. Heated air may be recovered from the heating zones and recycled. The pressurized air may be preheated by passing through a lift plate.Type: GrantFiled: January 15, 2013Date of Patent: May 12, 2015Assignee: Nordson CorporationInventors: Stanley C. Aguilar, David N. Padgett
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Publication number: 20140263738Abstract: Jetting devices and methods for dispensing a fluid material from a fluid supply. A jetting device includes a fluid module configured to be coupled with the fluid supply and to dispense the fluid material. The fluid module includes a valve seat and a valve element configured to move relative to the valve seat over a stroke length, and a valve stop configured to position the valve element relative to the valve seat for determining the stroke length. The jetting device further includes a drive module configured to actuate the fluid module and includes a drive pin configured to move the valve element toward the valve seat. The drive pin is configured to be rotated to cause rotation of the valve stop for adjustment of the stroke length. The drive pin may be rotated by a rotation device comprising a motor.Type: ApplicationFiled: March 12, 2013Publication date: September 18, 2014Applicant: NORDSON CORPORATIONInventors: Stanley C. Aguilar, David N. Padgett
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Publication number: 20140197153Abstract: Apparatus and methods for heating of one or more substrates with a plurality of independently controllable heating zones. Pressurized air is provided to each of a plurality of independently controlled heater blocks each including a heating element. The pressurized air is heated in the heater blocks and discharged towards one or more regions of the one or more substrates. The amount of power provided to the heating element in one of the heating blocks may be adjusted relative to the amount of power provided to the heating element in another of the heating blocks. The temperature of one heating zone may thereby be adjusted relative to other heating zones so that the temperature of different heating zones for the one or more substrates may be independently controlled. Heated air may be recovered from the heating zones and recycled. The pressurized air may be preheated by passing through a lift plate.Type: ApplicationFiled: January 15, 2013Publication date: July 17, 2014Applicant: NORDSON CORPORATIONInventors: Stanley C. Aguilar, David N. Padgett
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Publication number: 20040241262Abstract: A bead of liquid encapsulant or underfilled material (16) is dispensed along one or more edges of the flip chip (12). A plenum is located along the sides of the chip (12) in which encapsulant or underfilled material has not been deposited, such as opposite the dispensed material. Thereafter, the plenum is subject to a negative pressure source for drawing a vacuum to the area beneath the chip (12) and the substrate (10). The negative pressure aids in the natural capillary underfilling action and for quicker and more effective underfilling of the chip. Simultaneous underfilling of a plurality of chips (12) can be achieved by mounting a like plurality of vacuum tools to a plate which is moved into registration with a like plurality of chip/substrate workstations. By operatively connecting the vacuum tools to a controller, and to appropriate valves which can be set to adjust the vacuum level.Type: ApplicationFiled: January 8, 2004Publication date: December 2, 2004Inventors: Brett Huey, David N Padgett, Horatio Quinones
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Patent number: 6752260Abstract: The present invention provides a guide rail support bracket assembly for supporting a conveyor system guide rail through a support rod. The assembly includes a support bracket having a mounting segment configured to be mounted to a conveyor body. The support bracket is preferably formed by cutting and bending a generally flat metal plate. A support segment is connected at one end to the mounting segment and at another end, spaced from the mounting segment, to an angled clamping section. The support rod is clamped into the clamping section by an eyebolt that fits through a clamping hole formed in the angled clamping section. The eyebolt is drawn into the angled clamping section by a clamping knob.Type: GrantFiled: April 8, 2003Date of Patent: June 22, 2004Assignee: Valu Engineering, Inc.Inventors: Stuart J. Ledingham, David N. Padgett
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Patent number: 6669009Abstract: A guide rail support bracket assembly for supporting a conveyor system guide rail through a support rod. The assembly includes a support bracket having a mounting segment configured for mounting to a conveyor body. In one aspect, the support bracket is formed by cutting and bending a generally flat metal plate. A support segment is connected to the mounting segment and, spaced from the mounting segment, to an angled clamping section. The support rod is clamped into the clamping section by an eyebolt that fits through a clamping hole formed in the angled clamping section. The eyebolt is drawn into the angled clamping section by a clamping knob. In certain aspects, an extension segment is interposed between the mounting and the support segments to space the support segment further from a conveyor body. In other aspects, the support bracket and clamping sections are separate pieces pivotably joined by a fastener.Type: GrantFiled: September 7, 2001Date of Patent: December 30, 2003Assignee: Valu Engineering, Inc.Inventors: Stuart J. Ledingham, David N. Padgett