Patents by Inventor James N. Dobbs

James N. Dobbs 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: 11278956
    Abstract: A powder deagglomerator includes a vertical flow chamber, a powder inlet tube, and an ultrasonic horn vibrationally coupled to an ultrasonic transducer. The vertical flow chamber includes an outer wall, powder outlet port, and a mounting port sealably engaging an ultrasonic horn. The powder inlet tube extends through the outer wall and is aligned to dispense agglomerated powder in a gaseous stream downward onto a distal end of the ultrasonic horn. A method of using the powder deagglomerator to deagglomerate a powder is also disclosed.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: March 22, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Karl K. Stensvad, James N. Dobbs, Eric A. Vandre, Chrispian E. Shelton, Satinder K. Nayar, Saurabh Batra, Samad Javid
  • Publication number: 20220016670
    Abstract: Methods and apparatuses for applying coatings (9) on a moving web (3) are provided. A slot die (20) and a back-up roll (11) engage with each other. The back-up roll has a deformable inner layer (12) with a surface thereof covered by a deformable outer layer (14). The slot die and the flexible web at a contacting area are impressed into the back-up roll with an engagement depth D, which enables formation of a coating having a substantially uniform thickness.
    Type: Application
    Filed: December 3, 2019
    Publication date: January 20, 2022
    Inventors: Shawn C. Dodds, Tyler J. Rattray, Kara A. Meyers, Mikhail L. Pekurovsky, Scott L. Ciliske, James N. Dobbs, Samad Javid
  • Publication number: 20210086260
    Abstract: A powder deagglomerator comprises a vertical flow chamber, a powder inlet tube, and an ultrasonic horn vibrationally coupled to an ultrasonic transducer. The vertical flow chamber includes an outer wall, powder outlet port, and a mounting port sealably engaging an ultrasonic horn. The powder inlet tube extends through the outer wall and is aligned to dispense agglomerated powder in a gaseous stream downward onto a distal end of the ultrasonic horn. A method of using the powder deagglomerator to deagglomerate a powder is also disclosed.
    Type: Application
    Filed: March 29, 2018
    Publication date: March 25, 2021
    Inventors: Karl K. Stensvad, James N. Dobbs, Eric A. Vandre, Chrispian E. Shelton, Satinder K. Nayar, Saurabh Batra, Samad Javid
  • Publication number: 20200306790
    Abstract: Methods and apparatuses for applying coatings on a baggy web are provided. A Mayer rod and a back-up roll engage with each other to form a nip. The back-up roll has a deformable inner layer with a surface thereof covered by a deformable outer layer. The Mayer rod and the flexible web at a contacting area are impressed into the back-up roll with a machine-direction nip width W and a nip engagement depth D, which enables formation of a coating having a substantially uniform thickness.
    Type: Application
    Filed: November 12, 2018
    Publication date: October 1, 2020
    Inventors: Kara A. Meyers, Shawn C. Dodds, Eric A. Vandre, Tyler J. Rattray, Kevin T. Grove, Brittni M. Schiewer, Mikhail L. Pekurovsky, Samad Javid, James N. Dobbs, Wayne D. Meredyk
  • Patent number: 10758931
    Abstract: Methods and apparatuses for applying liquid coatings are provided. A first roll (14), a second roll (16), and a nip (146) formed between the first and second rolls are provided. A coating liquid (22) is supplied to the nip. The coating liquid is smoothed, via the nip, into a substantially uniform layer (22a) of liquid coating which is transferred to a substrate (12). The second roll (16) includes a thin metal shell (40) and a resilient layer (30), the thin metal shell encases the resilient layer therebeneath, and the thin metal shell is capable of deflecting in unison with the resilient layer such that the thin metal shell is elastically deformable at the nip when in contact with the first roll (14).
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: September 1, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Shawn C. Dodds, Mikhail L. Pekurovsky, James N. Dobbs, Graham M. Clarke, Michele A. Craton, Adam W. Kiefer, Matthew R. D. Smith, Brian E. Schreiber
  • Publication number: 20200189870
    Abstract: Web handling apparatuses and methods are provided to passively control a lateral position of a moving web. The web wraps around support rollers adjacent opposed web edges. One or more guide rollers are positioned adjacent to the support rollers. The guide rollers are in rolling contact with the web edge to guide the moving, misguided web back into its desired lateral position.
    Type: Application
    Filed: April 20, 2018
    Publication date: June 18, 2020
    Inventors: Glen A. Jerry, Ronald P. Swanson, Ameeta R. Goyal, James N. Dobbs
  • Publication number: 20200164401
    Abstract: A powder-rubbing apparatus comprises: a rotatable rubbing roll having a rotational axis; a substrate path; an oscillating mechanism for oscillating the rotatable rubbing roll along the rotational axis; and a powder coating die comprising an inlet port in fluid communication with an outlet port disposed adjacent to the substrate path. The substrate frictionally contacts the rotatable rubbing roll within a rubbing zone. A dispenser for dispensing gas-borne powder is in fluid communication with the inlet port of the powder coating die. The dispenser is aligned such that at least a portion of a gas-borne powder dispensed from the powder coating die is deposited directly onto at least one of the rotatable rubbing roll or the substrate and conveyed into the rubbing zone. A method of using the powder-rubbing apparatus and a powder-rubbed web preparable thereby are also disclosed.
    Type: Application
    Filed: July 24, 2018
    Publication date: May 28, 2020
    Inventors: James N. Dobbs, Karl K. Stensvad, Eric A. Vandre, Daniel H. Carlson, Ranjith Divigalpitiya, Gerrard A. S. Marra, Saurabh Batra, Satinder K. Nayar, Verlin W. Schelhaas, Chrispian E. Shelton, Samad Javid
  • Patent number: 10384231
    Abstract: A system and method for controlling curl in multi-layer webs. The method can include providing a coated web, curing the coating to form a multi-layer web, and stretching the web during curing of the coating. Some coatings shrink at least partially when cured such that curing the coating induces a strain in the multi-layer web. Stretching the web occurs during curing to induce an opposing strain that at least partially counteracts the strain induced by curing to form a multi-layer web having a desired curvature. The system can include a curing section configured to cure the coating, and can further include a web stretching section, which can be located proximate the curing section and can be substantially coincident with the curing section, such that the web is stretched while the coating is cured.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: August 20, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Ronald P. Swanson, Andrew J. Henderson, James N. Dobbs, Mark J. Zach
  • Publication number: 20190112711
    Abstract: A method is provided. The method may include engaging a first edge region on a first surface of a substrate with a first support roller; engaging a second edge region on the first surface of the substrate with a second support roller; transporting the substrate over the first and the second support rollers; repeating the following sequence of steps to form a thin film on the substrate: (a) exposing the substrate to a first precursor; (b) supplying a reactive species to the substrate after exposing the substrate to the first precursor; and depositing a vapor on the thin film to form a coating on the thin film.
    Type: Application
    Filed: March 24, 2017
    Publication date: April 18, 2019
    Inventors: Christopher S. Lyons, Bill H. Dodge, Joseph C. Spagnola, Glen A. Jerry, Ameeta R. Goyal, Ronald P. Swanson, James N. Dobbs
  • Patent number: 10221028
    Abstract: An apparatus for steering a web, including a web path having at least one steering roller and an exit roller, each having a mount; wherein the steering roller(s) each have an axis of rotation and wherein the mounts for the steering roller(s) can pivot those axes with a total of two degrees of freedom. An array comprising a plurality of sensors for monitoring the position of the web is present connected to a controller so as to determine the position and angular orientation of the web. The controller adjusts the pivot(s) of the mount(s) so as to control the angular orientation and the lateral position of the web at a particular point along the web path.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: March 5, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Ronald P. Swanson, Daniel H. Carlson, James N. Dobbs, Karl K. Stensvad
  • Patent number: 10150635
    Abstract: A web path for conveying a web material includes at least two support rollers contacting a single major surface of the web material, wherein the web material is of indefinite length and has a first and a second edge. A first support roller contacts a first edge region of the web material, and a second support roller contacts a second edge region of the web material such that the web material has a substantial un-contacted region between the first and the second support roller including at least about 50% of the width of the web material. At least one of the first support roller and the second support roller are supported on a bowed shaft such that at least one of the first and second support rollers is angled with respect to the direction of motion of the web.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: December 11, 2018
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Glen A. Jerry, Ameeta R. Goyal, Ronald P. Swanson, James N. Dobbs
  • Patent number: 9977154
    Abstract: A manufacturing system includes a sensing system that provides high-resolution feedback for web guiding and tension control. The system may be especially useful for web material that is manufactured to include micro-replicated structures with micron size scale. A micro-replication station forms a pattern of micro-replicated lenses on a web material. The sensing system illuminates a measurement area on the web material and detects an angular distribution of light exiting a set of the micro-replicated lenses within the first measurement area. A control system that adjusts at least one process control parameter of the transport system based on the detected angular distribution.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: May 22, 2018
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: David L. Hofeldt, Robert L. Brott, Daniel H. Carlson, James N. Dobbs, Andrzej P. Jaworski, Glen A. Jerry, John T. Strand, Michael J. Sykora, Karl K. Stensvad
  • Publication number: 20180133742
    Abstract: Methods and apparatuses for applying liquid coatings are provided. A first roll (14), a second roll (16), and a nip (146) formed between the first and second rolls are provided. A coating liquid (22) is supplied to the nip. The coating liquid is smoothed, via the nip, into a substantially uniform layer (22a) of liquid coating which is transferred to a substrate (12). The second roll (16) includes a thin metal shell (40) and a resilient layer (30), the thin metal shell encases the resilient layer therebeneath, and the thin metal shell is capable of deflecting in unison with the resilient layer such that the thin metal shell is elastically deformable at the nip when in contact with the first roll (14).
    Type: Application
    Filed: June 8, 2016
    Publication date: May 17, 2018
    Inventors: Shawn C. Dodds, Mikhail L. Pekurovsky, James N. Dobbs, Graham M. Clarke, Michele A. Craton, Adam W. Kiefer, Matthew R.D. Smith, Brian E. Schreiber
  • Publication number: 20170320692
    Abstract: An apparatus for steering a web, including a web path having at least one steering roller and an exit roller, each having a mount; wherein the steering roller(s) each have an axis of rotation and wherein the mounts for the steering roller(s) can pivot those axes with a total of two degrees of freedom. An array comprising a plurality of sensors for monitoring the position of the web is present connected to a controller so as to determine the position and angular orientation of the web. The controller adjusts the pivot(s) of the mount(s) so as to control the angular orientation and the lateral position of the web at a particular point along the web path.
    Type: Application
    Filed: July 26, 2017
    Publication date: November 9, 2017
    Inventors: Ronald P. Swanson, Daniel H. Carlson, James N. Dobbs, Karl K. Stensvad
  • Publication number: 20170305700
    Abstract: A web path for conveying a web material includes at least two support rollers contacting a single major surface of the web material, wherein the web material is of indefinite length and has a first and a second edge. A first support roller contacts a first edge region of the web material, and a second support roller contacts a second edge region of the web material such that the web material has a substantial un-contacted region between the first and the second support roller including at least about 50% of the width of the web material. At least one of the first support roller and the second support roller are supported on a bowed shaft such that at least one of the first and second support rollers is angled with respect to the direction of motion of the web.
    Type: Application
    Filed: December 16, 2015
    Publication date: October 26, 2017
    Inventors: Glen A. Jerry, Ameeta R. Goyal, Ronald P. Swanson, James N. Dobbs
  • Patent number: 9745162
    Abstract: An apparatus (20) for steering a web (22), including a web path having at least one steering roller (24) and an exit roller (26), each having a mount; wherein the steering roller(s) (26) each have an axis of rotation and wherein the mounts for the steering roller(s) (26) can pivot those axes with a total of two degrees of freedom. An array (30) comprising a plurality of sensors (30a) for monitoring the position of the web (22) is present connected to a controller so as to determine the position and angular orientation of the web (22). The controller adjusts the pivot(s) of the mount(s) so as to control the angular orientation and the lateral position of the web (22) at a particular point along the web path.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: August 29, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Ronald P. Swanson, Daniel H. Carlson, James N. Dobbs, Karl K. Stensvad
  • Patent number: 9511525
    Abstract: Injection molding parts onto a carrier web located between mold halves, each mold half having a cavity, resulting in molded articles having parts on both sides of the carrier web. Polymer flow into the cavities is assisted by application of ultrasonic energy to the mold. After the molding operation, mold halves are separated, and the carrier web is advanced, or indexed, to a next position for another molding sequence. Articles produced include lenses with part of the carrier web between lens halves, and a carrier web bearing an array of molded parts.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: December 6, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Dennis E. Ferguson, Satinder K. Nayar, Peter T. Benson, Stanley Rendon, Donald L. Pochardt, James N. Dobbs
  • Publication number: 20160116176
    Abstract: A roofing system and article for installation on a roof deck. The roofing article includes a body having an upper portion and an underside. A first channel is defined within the upper portion. The first channel includes an inlet. A second channel is defined intermediate the underside of the body and the roof deck. The second channel is operably connected to the first channel through an orifice, such that the outside air can enter the second channel through the orifice.
    Type: Application
    Filed: January 4, 2016
    Publication date: April 28, 2016
    Inventors: John S. Edwards, Frank W. Klink, James N. Dobbs, Jon A. Kirschhoffer
  • Patent number: 9228356
    Abstract: A roofing system and article for installation on a roof deck. The roofing article includes a body having an upper portion and an underside. A first channel is defined within the upper portion. The first channel includes an inlet. A second channel is defined intermediate the underside of the body and the roof deck. The second channel is operably connected to the first channel through an orifice, such that the outside air can enter the second channel through the orifice.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: January 5, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: John S. Edwards, Frank W. Klink, James N. Dobbs, Jon A. Kirschhoffer
  • Publication number: 20150197047
    Abstract: Injection molding parts onto a carrier web located between mold halves, each mold half having a cavity, resulting in molded articles having parts on both sides of the carrier web. Polymer flow into the cavities is assisted by application of ultrasonic energy to the mold. After the molding operation, mold halves are separated, and the carrier web is advanced, or indexed, to a next position for another molding sequence. Articles produced include lenses with part of the carrier web between lens halves, and a carrier web bearing an array of molded parts.
    Type: Application
    Filed: March 23, 2015
    Publication date: July 16, 2015
    Inventors: Dennis E. Ferguson, Satinder K. Nayar, Peter T. Benson, Stanley Rendon, Donald L. Pochardt, James N. Dobbs