Patents by Inventor John T. Boden
John T. Boden 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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Publication number: 20240010893Abstract: Abrasive particles comprising shaped abrasive particles each having a sidewall, each of the shaped abrasive particles comprising alpha alumina and having a first face and a second face separated by a sidewall and having a maximum thickness, T; and the shaped abrasive particles further comprising a plurality of grooves on the second face.Type: ApplicationFiled: September 25, 2023Publication date: January 11, 2024Inventors: John T. Boden, Dwight D. Erickson, Scott R. Culler, Negus B. Adefris, John D. Haas
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Patent number: 11767454Abstract: Abrasive particles comprising shaped abrasive particles each having a sidewall, each of the shaped abrasive particles comprising alpha alumina and having a first face and a second face separated by a sidewall and having a maximum thickness, T; and the shaped abrasive particles further comprising a plurality of grooves on the second face.Type: GrantFiled: April 4, 2018Date of Patent: September 26, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: John T. Boden, Dwight D. Erickson, Scott R. Culler, Negus B. Adefris, John D. Haas
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Patent number: 11707816Abstract: The method generally involves the steps of filling the cavities in a production tool each with an individual abrasive particle. Aligning a filled production tool and a resin coated backing for transfer of the abrasive particles to the resin coated backing. Transferring the abrasive particles from the cavities onto the resin coated backing and removing the production tool from the aligned position with the resin coated backing. Thereafter the resin layer is cured, a size coat is applied and cured and the coated abrasive article is converted to sheet, disk, or belt form by suitable converting equipment.Type: GrantFiled: November 18, 2019Date of Patent: July 25, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Steven J. Keipert, John T. Boden, Scott R. Culler
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Patent number: 11344998Abstract: The method generally involves the steps of filling the cavities in a production tool each with an individual abrasive particle. Aligning a filled production tool and a resin coated backing for transfer of the abrasive particles to the resin coated backing. Transferring the abrasive particles from the cavities onto the resin coated backing and removing the production tool from the aligned position with the resin coated backing. Thereafter the resin layer is cured, a size coat is applied and cured and the coated abrasive article is converted to sheet, disk, or belt form by suitable converting equipment.Type: GrantFiled: December 11, 2014Date of Patent: May 31, 2022Assignee: 3M Innovative Properties CompanyInventors: Scott R. Culler, John T. Boden, Steven J. Keipert, Negus B. Adefris
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Patent number: 10987780Abstract: Shaped abrasive particles each having a sloping sidewall. Each of the shaped abrasive particles containing alpha alumina and having a first face and a second face separated by a thickness, t. The shaped abrasive particles further having a draft angle ? between the second face and the sloping sidewall, and the draft angle ? is between about 95 degrees to about 125 degrees.Type: GrantFiled: February 15, 2012Date of Patent: April 27, 2021Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Negus B. Adefris, Dwight D. Erickson, Scott R. Culler, John T. Boden, John D. Haas
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Patent number: 10773361Abstract: Methods of making an abrasive article. Abrasive particles are loaded to a distribution tool including a plurality of walls defining a plurality of slots. Each slot is open to a lower side of the tool. The loaded particles are distributed from the distribution tool to a major face of a backing web below the lower side and moving relative to the tool. At least a majority of the particles distributed from the tool undergo an orientation sequence in which each particle first enters one of the slots. The particle then passes partially through the slot such that a first portion is beyond the lower side and in contact with the major face, and a second portion within the slot. The sequence then includes the particle remaining in simultaneous contact with one of the walls and the major face for a dwell period while the web moves relative to the tool.Type: GrantFiled: June 15, 2016Date of Patent: September 15, 2020Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Geoffrey I. Wilson, Mark R. Nyberg, Jeffery S. Thomford, Ernest L. Thurber, Brian G. Koethe, Charles C. Drange, Robert J. Hnatyk, John T. Boden
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Patent number: 10675734Abstract: A coated abrasive article maker apparatus is disclosed comprising a first web path comprising a production tool and a second web path configured for a resin coated backing. The second web path is configured to guide the resin coated backing through the coated abrasive article maker apparatus with the resin layer positioned facing the dispensing surface. An abrasive particle feeder is positioned along the first web path and is configured to dispense abrasive particles onto the dispensing surface such that abrasive particles are removably disposed within cavities of the production tool. Abrasive particles are transferred from the plurality of cavities to the resin layer of the resin coated backing when the production tool is positioned adjacent the resin coated backing.Type: GrantFiled: December 19, 2019Date of Patent: June 9, 2020Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Scott R. Culler, John T. Boden, Steven J. Keipert, Negus B. Adefris, Karan Jindal, Aaron K. Nienaber, David L. Morrison, Peter T. Benson, Pratik Pranay, Bradford B. Wright
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Publication number: 20200139512Abstract: A coated abrasive article maker apparatus is disclosed comprising a first web path comprising a production tool and a second web path configured for a resin coated backing. The second web path is configured to guide the resin coated backing through the coated abrasive article maker apparatus with the resin layer positioned facing the dispensing surface. An abrasive particle feeder is positioned along the first web path and is configured to dispense abrasive particles onto the dispensing surface such that abrasive particles are removably disposed within cavities of the production tool. Abrasive particles are transferred from the plurality of cavities to the resin layer of the resin coated backing when the production tool is positioned adjacent the resin coated backing.Type: ApplicationFiled: December 19, 2019Publication date: May 7, 2020Inventors: Scott R. Culler, John T. Boden, Steven J. Keipert, Negus B. Adefris, Karan Jindal, Aaron K. Nienaber, David L. Morrison, Peter T. Benson, Pratik Pranay, Bradford B. Wright
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Patent number: 10611001Abstract: The method generally involves the steps of filling the cavities in a production tool each with an individual abrasive particle. Aligning a filled production tool and a resin coated backing for transfer of the abrasive particles to the resin coated backing. Transferring the abrasive particles from the cavities onto the resin coated backing and removing the production tool from the aligned position with the resin coated backing. Thereafter the resin layer is cured, a size coat is applied and cured and the coated abrasive article is converted to sheet, disk, or belt form by suitable converting equipment.Type: GrantFiled: November 21, 2018Date of Patent: April 7, 2020Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Scott R. Culler, John T. Boden, Steven J. Keipert, Negus B. Adefris
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Publication number: 20200078904Abstract: The method generally involves the steps of filling the cavities in a production tool each with an individual abrasive particle. Aligning a filled production tool and a resin coated backing for transfer of the abrasive particles to the resin coated backing. Transferring the abrasive particles from the cavities onto the resin coated backing and removing the production tool from the aligned position with the resin coated backing. Thereafter the resin layer is cured, a size coat is applied and cured and the coated abrasive article is converted to sheet, disk, or belt form by suitable converting equipment.Type: ApplicationFiled: November 18, 2019Publication date: March 12, 2020Inventors: Steven J. Keipert, John T. Boden, Scott R. Culler
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Patent number: 10518388Abstract: A coated abrasive article maker apparatus including a first web path guiding a production tool such that it wraps a portion of the outer circumference of an abrasive particle transfer roll; a second web path for a resin coated backing guiding the resin coated backing such that it wraps a portion of the outer circumference of the abrasive particle transfer roll with the resin layer positioned facing the dispensing surface of the production tool this is positioned between the resin coated backing and the outer circumference of the abrasive particle transfer roll; and wherein abrasive particles are transferred from cavities in the production tool to the resin coated backing as the resin coated backing and the production tool traverse around the abrasive particle transfer roll.Type: GrantFiled: December 22, 2014Date of Patent: December 31, 2019Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Scott R. Culler, John T. Boden, Steven J. Keipert, Negus B. Adefris, Karan Jindal, Aaron K. Nienaber, David L. Morrison, Peter T. Benson, Pratik Pranay, Bradford B. Wright
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Patent number: 10493596Abstract: The method generally involves the steps of filling the cavities in a production tool each with an individual abrasive particle. Aligning a filled production tool and a resin coated backing for transfer of the abrasive particles to the resin coated backing. Transferring the abrasive particles from the cavities onto the resin coated backing and removing the production tool from the aligned position with the resin coated backing. Thereafter the resin layer is cured, a size coat is applied and cured and the coated abrasive article is converted to sheet, disk, or belt form by suitable converting equipment.Type: GrantFiled: August 17, 2015Date of Patent: December 3, 2019Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Steven J. Keipert, John T. Boden, Scott R. Culler
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Publication number: 20190262974Abstract: In some examples, an abrasive particle transfer system including a production tool comprising a dispensing surface and a back surface opposite the dispensing surface, wherein the production tool has cavities formed therein, wherein, on a respective basis, each of the cavities extends from a first opening at the dispensing surface through the production tool to a second opening at the back surface, and wherein the second opening is smaller than the first opening; abrasive particles removably disposed within at least some of the cavities such that a portion of each particle protrudes from the back surface through the second opening; and a transfer roll having an outer surface, wherein the production tool is guided along a web path such that the portion of the abrasive particles protruding from the back surface of the production tool contacts the outer surface of the abrasive particle transfer roll to displace the abrasive particles.Type: ApplicationFiled: September 25, 2017Publication date: August 29, 2019Inventors: Aaron K. Nienaber, John T. Boden, Joseph B. Eckel, Steven J. Keipert, Michael R. Berrigan
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Publication number: 20190233693Abstract: Various embodiments disclosed relate to shaped abrasive particles having sharp tips, methods of making the shaped abrasive particles, methods of abrading a substrate with the shaped abrasive particles, and coated abrasive articles including the shaped abrasive particles. The shaped abrasive particle includes a ceramic, has a polygonal cross-sectional shape along a longitudinal axis of the shaped abrasive particle, and at least one tip of the shaped abrasive particle has a radius of curvature of less than or equal to about 19.2 microns.Type: ApplicationFiled: July 31, 2017Publication date: August 1, 2019Inventors: Dwight D. Erickson, Ian R. Owen, Shawn C. Dodds, Matthew S. Stay, Scott R. Culler, John T. Boden, William C. Quade, Joseph D. Solem, Negus B. Adefris, Chainika Jangu, Thomas J. Anderson, Gregory S. Mueller, William Blake Kolb
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Publication number: 20190091835Abstract: The method generally involves the steps of filling the cavities in a production tool each with an individual abrasive particle. Aligning a filled production tool and a resin coated backing for transfer of the abrasive particles to the resin coated backing. Transferring the abrasive particles from the cavities onto the resin coated backing and removing the production tool from the aligned position with the resin coated backing. Thereafter the resin layer is cured, a size coat is applied and cured and the coated abrasive article is converted to sheet, disk, or belt form by suitable converting equipment.Type: ApplicationFiled: November 21, 2018Publication date: March 28, 2019Inventors: Scott R. Culler, John T. Boden, Steven J. Keipert, Negus B. Adefris
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Publication number: 20190092990Abstract: Abrasive particles comprising shaped abrasive particles each having a sidewall, each of the shaped abrasive particles comprising alpha alumina and having a first face and a second face separated by a sidewall and having a maximum thickness, T; and the shaped abrasive particles further comprising a plurality of grooves on the second face.Type: ApplicationFiled: November 21, 2018Publication date: March 28, 2019Inventors: John T. Boden, Dwight D. Erickson, Scott R. Culler, Negus B. Adefris, John D. Haas
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Publication number: 20180318983Abstract: Methods of making an abrasive article. Abrasive particles are loaded to a distribution tool including a plurality of walls defining a plurality of slots. Each slot is open to a lower side of the tool. The loaded particles are distributed from the distribution tool to a major face of a backing web below the lower side and moving relative to the tool. At least a majority of the particles distributed from the tool undergo an orientation sequence in which each particle first enters one of the slots. The particle then passes partially through the slot such that a first portion is beyond the lower side and in contact with the major face, and a second portion within the slot. The sequence then includes the particle remaining in simultaneous contact with one of the walls and the major face for a dwell period while the web moves relative to the tool.Type: ApplicationFiled: June 15, 2016Publication date: November 8, 2018Inventors: Geoffrey I. Wilson, Mark R. Nyberg, Jeffery S. Thomford, Ernest L. Thurber, Brian G. Koethe, Charles C. Drange, Robert J. Hnatyk, John T. Boden
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Publication number: 20180223145Abstract: Abrasive particles comprising shaped abrasive particles each having a sidewall, each of the shaped abrasive particles comprising alpha alumina and having a first face and a second face separated by a sidewall and having a maximum thickness, T; and the shaped abrasive particles further comprising a plurality of grooves on the second face.Type: ApplicationFiled: April 4, 2018Publication date: August 9, 2018Inventors: John T. Boden, Dwight D. Erickson, Scott R. Culler, Negus B. Adefris, John D. Haas
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Patent number: 10000677Abstract: A method includes: providing a mold having a plurality of mold cavities, wherein each mold cavity is bounded by a plurality of faces joined along common edges; filling at least some of the mold cavities with a sol-gel composition that includes a release agent dispersed therein; at least partially drying the sol-gel composition thereby forming shaped ceramic precursor particles; calcining at least a portion of the shaped ceramic precursor particles to provide calcined shaped ceramic precursor particles; and sintering at least a portion of the calcined shaped ceramic precursor particles to provide ceramic shaped abrasive particles. A sol-gel composition, shaped ceramic precursor particles, and ceramic shaped abrasive particles associated with practice of the method are also disclosed.Type: GrantFiled: September 19, 2017Date of Patent: June 19, 2018Assignee: 3M Innovative Properties CompanyInventors: John T. Boden, Scott R. Culler, Dwight D. Erickson
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Patent number: 9938439Abstract: Abrasive particles comprising shaped abrasive particles each having a sidewall, each of the shaped abrasive particles comprising alpha alumina and having a first face and a second face separated by a sidewall and having a maximum thickness, T; and the shaped abrasive particles further comprising a plurality of grooves on the second face.Type: GrantFiled: May 6, 2014Date of Patent: April 10, 2018Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: John T. Boden, Dwight D. Erickson, Scott R. Culler, Negus B. Adefris, John D. Haas