Patents by Inventor Robinette S. Alkhas

Robinette S. Alkhas 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: 20230166384
    Abstract: An abrasive body comprises portions of a first abrasive element. The portions of the first abrasive element are bonded ogether by a first binder material. The first abrasive element comprises abrasive particles bonded to a substrate by at least a second binder material. The portions of the first abrasive element are not agglomerate abrasive particles. The abrasive body has a maximum dimension, and the portions of the first abrasive element have a maximum dimension that is less than 80 percent of the maximum dimension of the abrasive body. A method of making an abrasive body is also disclosed.
    Type: Application
    Filed: May 7, 2021
    Publication date: June 1, 2023
    Inventors: Robinette S. Alkhas, Paul N. Daveloose, Jacob S. Beveridge, Gregory G. Mehsikomer
  • Patent number: 11505730
    Abstract: Various embodiments disclosed relate to an abrasive article (10). The abrasive article (10 includes a backing (12) defining a major surface. The abrasive article (10) includes an abrasive layer including a plurality of tetrahedral abrasive particles (16) attached to the backing (12). The tetrahedral abrasive particles (16) include four faces joined by six edges terminating at four vertices (40, 42, 44, 46). Each one of the four faces contacts three of the four faces, and a major portion of the tetrahedral abrasive particles (16) have at least one of the vertices (40, 42, 44, 46) oriented in substantially a same direction.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: November 22, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Laura M. Lara Rodriguez, Chainika Jangu, Scott R. Culler, Negus B. Adefris, Gregory S. Mueller, Jon T. Schwartz, Brian G. Koethe, Robinette S. Alkhas, Ronald D. Apple, Ernest L. Thurber
  • Patent number: 11351653
    Abstract: Abrasive articles including a nonwoven fibrous substrate having a plurality of fibers, and a multiplicity of shaped abrasive particles, each shaped abrasive particle adhered to a corresponding fiber, each shaped abrasive particle having a length (L) and a width (W) determined in a direction substantially orthogonal to the length, the ratio of the length to the width defining an aspect ratio (L/W) of at least 1.1, each abrasive particle is oriented relative to its corresponding fiber, and more than 50% of the abrasive particles are oriented with respect to their corresponding fiber such that the abrasive particle length extends generally outwardly away from a surface of the corresponding fiber as determined visually using the Orientation Test. The shaped abrasive particles may have the geometric shape of a polygonal prism having two faces and at least three sides thereon. Methods of making the abrasive articles are also disclosed.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: June 7, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Aaron K. Nienaber, Grayce T. Huberty, Thomas J. Nelson, Ronald D. Apple, Louis S. Moren, Robinette S. Alkhas, Nathan E. Schultz, Tien T. Wu, Gerry A. Hoffdahl
  • Publication number: 20220001514
    Abstract: According to various embodiment of the present disclosure, a bonded abrasive article precursor includes a curable composition. The curable composition includes a curative component. The curable composition further includes one or more resins. The curable composition further includes a plurality of shaped abrasive particles. The curable composition is curable in an amount of time in a range of from about 0.1 minutes to about 20 minutes at a temperature of about 25° C. to about 160° C.
    Type: Application
    Filed: December 16, 2019
    Publication date: January 6, 2022
    Inventors: Brett A. Beiermann, Aaron K. Nienaber, Joseph B. Eckel, Maiken Givot, Thomas J. Nelson, Robinette S. Alkhas, Dwight D. Erickson, Loc X. Van, Melissa C. Schillo-Armstrong
  • Publication number: 20210308834
    Abstract: Abrasive articles comprising at least one layer of fibrous nonwoven fabric, woven fabrics and combinations thereof are disclosed. The fabrics or combinations of fabrics may have a hardened adherent coating. The adherent coating may comprise a first coating and a second coating. The second coating may be formed on top of the first coating. The first coating may comprise a crosslinked binder and the second coating may comprise an abrasive particle and a lubricant.
    Type: Application
    Filed: July 18, 2019
    Publication date: October 7, 2021
    Inventors: Robinette S. Alkhas, Ronald D. Apple
  • Publication number: 20210283749
    Abstract: Abrasive articles including a nonwoven fibrous substrate having a plurality of fibers, and a multiplicity of shaped abrasive particles, each shaped abrasive particle adhered to a corresponding fiber, each shaped abrasive particle having a length (L) and a width (W) determined in a direction substantially orthogonal to the length, the ratio of the length to the width defining an aspect ratio (L/W) of at least 1.1, each abrasive particle is oriented relative to its corresponding fiber, and more than 50% of the abrasive particles are oriented with respect to their corresponding fiber such that the abrasive particle length extends generally outwardly away from a surface of the corresponding fiber as determined visually using the Orientation Test. The shaped abrasive particles may have the geometric shape of a polygonal prism having two faces and at least three sides thereon. Methods of making the abrasive articles are also disclosed.
    Type: Application
    Filed: September 18, 2017
    Publication date: September 16, 2021
    Inventors: Aaron K. Nienaber, Grayce T. Huberty, Thomas J. Nelson, Ronald D. Apple, Louis S. Moren, Robinette S. Alkhas, Nathan E. Schultz, Tien T. Wu, Gerry A. Hoffdahl
  • Publication number: 20200199425
    Abstract: Various embodiments disclosed relate to an abrasive article (10). The abrasive article (10 includes a backing (12) defining a major surface. The abrasive article (10) includes an abrasive layer including a plurality of tetrahedral abrasive particles (16) attached to the backing (12). The tetrahedral abrasive particles (16) include four faces joined by six edges terminating at four vertices (40, 42, 44, 46). Each one of the four faces contacts three of the four faces, and a major portion of the tetrahedral abrasive particles (16) have at least one of the vertices (40, 42, 44, 46) oriented in substantially a same direction.
    Type: Application
    Filed: May 11, 2018
    Publication date: June 25, 2020
    Inventors: Laura M. Lara Rodriguez, Chainika Jangu, Scott R. Culler, Negus B. Adefris, Gregory S. Mueller, Jon T. Schwartz, Brian G. Koethe, Robinette S. Alkhas, Ronald D. Apple, Ernest L. Thurber
  • Publication number: 20200139513
    Abstract: A nonwoven abrasive article includes a lofty open nonwoven fiber web comprising entangled fibers; and abrasive platelets secured to the entangled fibers by at least one binder material. A majority of the abrasive platelets are respectively bonded in an edge-wise manner to at least one of the entangled fibers. Methods of making the nonwoven abrasive article and converted forms, including a convolute abrasive wheel, are also disclosed.
    Type: Application
    Filed: December 20, 2019
    Publication date: May 7, 2020
    Inventors: Robinette S. Alkhas, Ronald D. Apple, Louis S. Moren
  • Patent number: 10556323
    Abstract: A nonwoven abrasive article includes a lofty open nonwoven fiber web comprising entangled fibers; and abrasive platelets secured to the entangled fibers by at least one binder material. A majority of the abrasive platelets are respectively bonded in an edge-wise manner to at least one of the entangled fibers. Methods of making the nonwoven abrasive article and converted forms, including a convolute abrasive wheel, are also disclosed.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: February 11, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Robinette S. Alkhas, Ronald D. Apple, Louis S. Moren
  • Publication number: 20190202032
    Abstract: Various embodiments disclosed relate to nonwoven abrasive article including abrasive particles. In various embodiments, the present invention provides a nonwoven abrasive article including a nonwoven web including fibers and pores between the fibers. The nonwoven abrasive article includes abrasive particles, wherein each of the pores between the fibers independently includes one or more of the abrasive particles. Each pore is independently about the same size as the one or more abrasive particles therein.
    Type: Application
    Filed: June 30, 2017
    Publication date: July 4, 2019
    Inventors: Robinette S. Alkhas, Ronald D. Apple, Dean S. Holmes, Laurie L. Poluha, Louis S. Moren
  • Publication number: 20180036866
    Abstract: A nonwoven abrasive article includes a lofty open nonwoven fiber web comprising entangled fibers; and abrasive platelets secured to the entangled fibers by at least one binder material. A majority of the abrasive platelets are respectively bonded in an edge-wise manner to at least one of the entangled fibers. Methods of making the nonwoven abrasive article and converted forms, including a convolute abrasive wheel, are also disclosed.
    Type: Application
    Filed: March 30, 2016
    Publication date: February 8, 2018
    Inventors: Robinette S. Alkhas, Ronald D. Apple, Louis S. Moren
  • Patent number: 5346516
    Abstract: A non-woven abrasive material including a lofty, open, three dimensional web of non-woven fibers randomly intertwined and carrying abrasive particles and a binder material bonding the fibers together and bonding the abrasive particles to the fibers, with hydrogenated vegetable oil in solid form coating the fibers, particles and binder material at the surface of the web and within voids in the interior of the web, and preferably also with a coating of resinous plastic binder encapsulating the hydrogenated vegetable oil at the surface of the web and within its interior.
    Type: Grant
    Filed: September 16, 1993
    Date of Patent: September 13, 1994
    Assignee: Tepco, Ltd.
    Inventors: Robinette S. Alkhas, Michael Salyards