Patents by Inventor Robert L. W. Smithson

Robert L. W. Smithson 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: 11072115
    Abstract: The present disclosure provides methods of making a vitreous bond abrasive article and a metal bond abrasive article. An abrasive article preform is produced by an additive manufacturing sub-process comprising the deposition of a layer of loose powder particles in a confined region and selective heating via conduction or irradiation to heat treat an area of the layer of loose powder particles. The loose powder particles include abrasive particles and organic compound particles, as well as vitreous bond precursor particles or metal particles. The abrasive article preform produced by additive manufacturing is subsequently heated to provide the vitreous bond abrasive article comprising the abrasive particles retained in a vitreous bond material, or to provide the metal bond abrasive article. Also, the methods include receiving, by an additive manufacturing device having a processor, a digital object specifying data for an abrasive article, and generating the abrasive article with the manufacturing device.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: July 27, 2021
    Assignee: 3M Innovative Properties Company
    Inventors: Carsten Franke, Maiken Givot, Malte Korten, Robert L. W. Smithson, Brian D. Goers, Negus B. Adefris, Thomas J. Anderson, Brian A. Shukla, Michael C. Harper, Elizaveta Y. Plotnikov
  • Patent number: 11072053
    Abstract: The present disclosure provides methods of making a vitreous bond abrasive article and a metal bond abrasive article. The methods include sequential steps. Step a) includes a subprocess including sequentially: i) depositing a layer of loose powder particles in a confined region; and ii) selectively applying heat via conduction or irradiation, to heat treat an area of the layer of loose powder particles. The loose powder particles include abrasive particles and organic compound particles, as well as vitreous bond precursor particles or metal particles. The layer of loose powder particles has substantially uniform thickness. Step b) includes independently carrying out step a) a number of times to generate an abrasive article preform comprising the bonded powder particles and remaining loose powder particles. Step c) includes separating remaining loose powder particles from the abrasive article preform.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: July 27, 2021
    Assignee: 3M Innovative Properties Company
    Inventors: Carsten Franke, Maiken Givot, Malte Korten, Robert L. W. Smithson, Brian D. Goers, Negus B. Adefris, Thomas J. Anderson, Brian A. Shukla, Michael C. Harper, Elizaveta Y. Plotnikov
  • Publication number: 20210094149
    Abstract: Methods of making metal bond abrasive articles via powder bed jetting are disclosed. Metal bond abrasive articles prepared by the method include abrasive articles having arcuate or tortuous cooling channels, abrasive segments, abrasive wheels, and rotary dental tools.
    Type: Application
    Filed: December 11, 2020
    Publication date: April 1, 2021
    Inventors: Carsten Franke, Brian D. Goers, Robert L.W. Smithson, Negus B. Adefris, Brian A. Shukla, Michael C. Harper, Elizaveta Y. Plotnikov
  • Patent number: 10888973
    Abstract: Methods of making metal bond abrasive articles via powder bed jetting are disclosed. Metal bond abrasive articles prepared by the method include abrasive articles having arcuate or tortuous cooling channels, abrasive segments, abrasive wheels, and rotary dental tools.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: January 12, 2021
    Assignee: 3M Innovative Properties Company
    Inventors: Carsten Franke, Brian D. Goers, Robert L. W. Smithson, Negus B. Adefris, Brian A. Shukla, Michael C. Harper, Elizaveta Y. Plotnikov
  • Patent number: 10709619
    Abstract: A fastening tape, mechanical fastener, methods of making them, and personal hygiene articles including them are disclosed. The fastening tape includes a tape backing having a fastening portion, an adhesive disposed on the fastening portion, and a release surface for the adhesive. The release surface is a either a release tape attached along one of its edges to the tape backing or a release coating disposed on at least a portion of a surface of the tape backing. At least one of the tape backing or the release surface comprises a microporous film having an opaque, microporous region and at least one see-through region of lower porosity within the opaque, microporous region. The mechanical fastener includes such a microporous film and mechanical fastening elements on at least one surface. The at least one see-through region extends through the thickness of the microporous film.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: July 14, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Neelakandan Chandrasekaran, Robert L. W. Smithson, Timothy V. Stagg
  • Patent number: 10687588
    Abstract: The present invention relates to printed hook components for hook and loop mechanical fasteners, and other components such as on diaper chassis and other personal hygiene articles, and methods for making the same. The hook component comprises an organic polymer, a laser-sensitive agent, and a laser-induced print on the hook component created by the interaction of electromagnetic radiation with the laser-sensitive agent. The hook component can be used in a variety of applications, including mechanical fastening devices for personal hygiene articles such as diapers, adult incontinence pads, and medical gowns.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: June 23, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Jeffrey O. Emslander, Siegfried R. Gabriel, Michael R. Gorman, Tilo Remhof, Robert L. W. Smithson, Hans-Gerd Vollmers
  • Publication number: 20200070311
    Abstract: Methods of making polymer bond abrasive articles and their precursors using powder bed jetting are disclosed. Polymer bond abrasive articles prepared by the method include abrasive articles having arcuate or tortuous cooling channels, unitary structured abrasive discs, abrasive segments, shaped abrasive particles, and abrasive wheels.
    Type: Application
    Filed: December 13, 2017
    Publication date: March 5, 2020
    Inventors: Robert L.W. Smithson, Brian D. Goers, Brian A. Shukla, Michael C. Harper
  • Publication number: 20200016725
    Abstract: The present disclosure provides bonded abrasive articles including abrasive particles retained in a binder. The abrasive particles are oriented at a predetermined angle greater than 0 degrees and less than 90 degrees with respect to a longitudinal axis of the bonded abrasive article. Fifty percent or more of the abrasive particles are oriented within 15 degrees above or below the angle, as measured using microscopy image analysis under magnification. The present disclosure further provides a method of making a bonded abrasive article, the method comprising sequential steps.
    Type: Application
    Filed: October 10, 2017
    Publication date: January 16, 2020
    Inventors: Negus B. Adefris, Carsten Franke, Robert L.W. Smithson, Brian D. Goers, Maria Celeste Castillo, Maiken Givot
  • Publication number: 20190375072
    Abstract: Metal bond abrasive articles and methods of making metal bond abrasive articles via a focused beam are disclosed. In an aspect, a metal bond abrasive article includes a metallic binder material having abrasive particles retained therein, where the abrasive particles have at least one coating disposed thereon. The coating includes a metal, a metal oxide, a metal carbide, a metal nitride, a metalloid, or combinations thereof, and the at least one coating has an average thickness of 0.5 micrometers or greater. The metal bond abrasive article includes a number of layers directly bonded to each other. Metal bond abrasive articles prepared by the method can include abrasive articles having arcuate or tortuous cooling channels, abrasive segments, abrasive wheels, and rotary dental tools.
    Type: Application
    Filed: January 25, 2018
    Publication date: December 12, 2019
    Inventors: Jean-Luc Rifaut, Badri Veeraraghavan, Tilo Remhof, Brian D. Goers, Andreas M. Geldmacher, Robert L.W. Smithson, Przemyslaw P. Markowicz, Johannes Fink
  • Patent number: 10417534
    Abstract: The inventors of the present application developed novel optically active materials, methods, and articles. One embodiment of the present application is an optically active article, comprising: an infrared-reflecting material positioned adjacent to an optically active substrate such that the infrared-reflecting material forms a pattern that can be read by an infrared sensor when the optically active substrate is illuminated by an infrared light source. Another embodiment of the present application relates to a method of manufacturing an optically active article, comprising: obtaining an optically active sheeting; and positioning an infrared-reflecting material on the optically active sheeting to form a pattern. The optically active article may be, for example, a license plate.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: September 17, 2019
    Assignee: 3M Innovative Properties Company
    Inventors: Robert L. W. Smithson, Rolf W. Biernath
  • Patent number: 10376420
    Abstract: A personal hygiene article includes a chassis with a topsheet, a backsheet, and an absorbent component between the topsheet and the backsheet. At least one portion of the personal hygiene article includes a microporous film having an opaque, microporous region and at least one see-through region of lower porosity within the opaque, microporous region. The microporous film can include a beta-nucleating agent or can have thermally induced phase separation caused by a diluent. A container includes a microporous film enclosing at least one personal hygiene article. The microporous film has an opaque, microporous region and at least one see-through region of lower porosity forming a window within the opaque, microporous region. Methods of making the personal hygiene article and container are also described.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: August 13, 2019
    Assignee: 3M Innovative Properties Company
    Inventors: Neelakandan Chandrasekaran, Robert L. W. Smithson, Leigh E. Wood, Timothy V. Stagg
  • Publication number: 20190047214
    Abstract: The present disclosure provides methods of making a vitreous bond abrasive article and a metal bond abrasive article. An abrasive article preform is produced by an additive manufacturing sub-process comprising the deposition of a layer of loose powder particles in a confined region and selective heating via conduction or irradiation to heat treat an area of the layer of loose powder particles. The loose powder particles include abrasive particles and organic compound particles, as well as vitreous bond precursor particles or metal particles. The abrasive article preform produced by additive manufacturing is subsequently heated to provide the vitreous bond abrasive article comprising the abrasive particles retained in a vitreous bond material, or to provide the metal bond abrasive article. Also, the methods include receiving, by an additive manufacturing device having a processor, a digital object specifying data for an abrasive article, and generating the abrasive article with the manufacturing device.
    Type: Application
    Filed: March 30, 2017
    Publication date: February 14, 2019
    Inventors: Carsten Franke, Maiken Givot, Malte Korten, Robert L.W. Smithson, Brian D. Goers, Negus B. Adefris, Thomas J. Anderson, Brian A. Shukla, Michael C. Harper, Elizaveta Y. Plotnikov
  • Publication number: 20190022826
    Abstract: The present disclosure provides methods of making a vitreous bond abrasive article and a metal bond abrasive article. The methods include sequential steps. Step a) includes a subprocess including sequentially: i) depositing a layer of loose powder particles in a confined region; and ii) selectively applying heat via conduction or irradiation, to heat treat an area of the layer of loose powder particles. The loose powder particles include abrasive particles and organic compound particles, as well as vitreous bond precursor particles or metal particles. The layer of loose powder particles has substantially uniform thickness. Step b) includes independently carrying out step a) a number of times to generate an abrasive article preform comprising the bonded powder particles and remaining loose powder particles. Step c) includes separating remaining loose powder particles from the abrasive article preform.
    Type: Application
    Filed: January 18, 2017
    Publication date: January 24, 2019
    Inventors: Carsten Franke, Maiken Givot, Malte Korten, Robert L.W. Smithson, Brian D. Goers, Negus B. Adefris, Thomas J. Anderson, Brian A. Shukla, Michael C. Harper, Elizaveta Y. Plotnikov
  • Publication number: 20190009459
    Abstract: Continuous additive manufacturing apparatuses are provided. An apparatus includes an actinic radiation-transparent substrate having a major surface and an irradiation source configured to direct actinic radiation through the actinic radiation-transparent substrate at predetermined dosages at predetermined locations. The apparatus further includes a means for depositing a composition onto the major surface of the actinic radiation-transparent substrate and a means for conveying the actinic radiation-transparent substrate or the irradiation source with respect to each other.
    Type: Application
    Filed: December 13, 2016
    Publication date: January 10, 2019
    Inventors: Carsten Franke, Kenneth L. Smith, Jesse R. Behnke, Robert L.W. Smithson, Lucas D. Crestik, Olester Benson, JR., Alexander J. Huffman
  • Publication number: 20180355221
    Abstract: A continuous method of manufacturing adhesives is provided. The method includes obtaining an actinic radiation-polymerizable adhesive precursor composition disposed on a major surface of an actinic radiation-transparent substrate and irradiating a first portion of the actinic radiation-polymerizable adhesive precursor composition through the actinic radiation-transparent substrate for a first irradiation dosage. The method further includes moving the actinic radiation-transparent substrate and irradiating a second portion of the actinic radiation-polymerizable adhesive precursor composition through the actinic radiation-transparent substrate for a second irradiation dosage. Optionally, the method also includes irradiating a third portion of the actinic radiation-polymerizable adhesive precursor composition through the actinic radiation-transparent substrate prior to moving the substrate.
    Type: Application
    Filed: December 13, 2016
    Publication date: December 13, 2018
    Inventors: Carsten Franke, Kenneth L. Smith, Jesse R. Behnke, Robert L.W. Smithson, Lucas D. Crestik, Olester Benson, Jr., Alexander J. Huffman, Michael A. Kropp, John P. Baetzold, Serkan Yurt
  • Patent number: 10105524
    Abstract: The present application provides articles (10) having a polymeric substrate (12) with a plurality of solid and/or hollow microneedles (20) extending therefrom. Each solid microneedle is formed by a molding process and the microneedle has body with first (30) and second cavities (40) extending therein. The hollow microneedles are formed by removing a portion of the polymeric material disposed between the first cavity and the second cavity. A method for determining the location of a microneedle in an article comprising solid microneedles is also provided. The method comprises directing electromagnetic radiation toward an article comprising a plurality of microneedles and imaging the article.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: October 23, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Kenneth A. P. Meyer, Przemyslaw P. Markowicz, Stanley Rendon, Robert L. W. Smithson, Ryan Patrick Simmers
  • Publication number: 20180291239
    Abstract: A method of making an adhesive is provided, including obtaining an actinic radiation-polymerizable adhesive precursor composition disposed against a surface of an actinic radiation-transparent substrate and irradiating a first portion of the actinic radiation-polymerizable adhesive precursor composition through the actinic radiation-transparent substrate for a first irradiation dosage. The method further includes irradiating a second portion of the actinic radiation-polymerizable adhesive precursor composition through the actinic radiation-transparent substrate for a second irradiation dosage. The first portion and the second portion are adjacent to or overlapping with each other and the first irradiation dosage and the second irradiation dosage are not the same. The method forms an integral adhesive having a variable thickness in an axis normal to the surface of the actinic radiation-transparent substrate.
    Type: Application
    Filed: December 23, 2016
    Publication date: October 11, 2018
    Inventors: Carsten Franke, Joseph C. Dingeldein, Jay A. Esch, Robert L.W. Smithson, Jayshree Seth, Olester Benson, Jr., Karen J. Calverley, Alexander J. Huffman, Serkan Yurt, Setareh Niknezhad, Michael A. Kropp, John P. Baetzold
  • Patent number: 10082609
    Abstract: A method of marking prismatic retroreflective sheeting includes providing prismatic retroreflective sheeting having a front side and a back side, the back side having prismatic features and directing a radiation source at the back side of the prismatic retroreflective sheeting and irradiating a plurality of the prismatic features. The radiation forms a mark in the prismatic retroreflective sheeting.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: September 25, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Bruce D. Orensteen, Robert L. W. Smithson
  • Publication number: 20180228253
    Abstract: The present invention relates to printed hook components for hook and loop mechanical fasteners, and other components such as on diaper chassis and other personal hygiene articles, and methods for making the same. The hook component comprises an organic polymer, a laser-sensitive agent, and a laser-induced print on the hook component created by the interaction of electromagnetic radiation with the laser-sensitive agent. The hook component can be used in a variety of applications, including mechanical fastening devices for personal hygiene articles such as diapers, adult incontinence pads, and medical gowns.
    Type: Application
    Filed: October 22, 2015
    Publication date: August 16, 2018
    Inventors: Jeffrey O. Emslander, Siegfried R. Gabriel, Michael R. Gorman, Tilo Remhof, Robert L.W. Smithson, Hans-Gerd Vollmers
  • Publication number: 20180126515
    Abstract: Methods of making metal bond abrasive articles via powder bed jetting are disclosed. Metal bond abrasive articles prepared by the method include abrasive articles having arcuate or tortuous cooling channels, abrasive segments, abrasive wheels, and rotary dental tools.
    Type: Application
    Filed: June 16, 2016
    Publication date: May 10, 2018
    Inventors: Carsten Franke, Brian D. Goers, Robert L.W. Smithson, Negus B. Adefris, Brian A. Shukla, Michael C. Harper, Elizaveta Y. Plotnikov