Patents by Inventor Darrell K. Everts

Darrell K. Everts 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: 20250025988
    Abstract: A coated abrasive article comprising a backing, an adhesive layer disposed in a discontinuous distribution on at least a portion of the backing, wherein the discontinuous distribution comprises a plurality of adhesive contact regions and at least one shaped abrasive particle is disposed on a majority of each of the discrete adhesive contact regions, wherein at least 50% of the shaped abrasive particles comprise a predetermined side orientation and have a tilt angle of at least 45 degrees, wherein the shaped abrasive particles comprise a polycrystalline material and are free of binder, wherein the first plurality of discrete adhesive contact regions comprise a predetermined two-dimensional shape as viewed from above, and wherein each of the discrete contact regions comprises a length, a width, or a combination thereof that substantially corresponds to a dimension of the at least one abrasive particle.
    Type: Application
    Filed: September 16, 2024
    Publication date: January 23, 2025
    Inventors: Anuj SETH, Vivek Cheruvari Kottieth Raman, Darrell K. Everts
  • Patent number: 12122017
    Abstract: A coated abrasive article comprising a backing, an adhesive layer disposed in a discontinuous distribution on at least a portion of the backing, wherein the discontinuous distribution comprises a plurality of adhesive contact regions and at least one shaped abrasive particle is disposed on a majority of each of the discrete adhesive contact regions, wherein at least 50% of the shaped abrasive particles comprise a predetermined side orientation and have a tilt angle of at least 45 degrees, wherein the shaped abrasive particles comprise a polycrystalline material and are free of binder, wherein the first plurality of discrete adhesive contact regions comprise a predetermined two-dimensional shape as viewed from above, and wherein each of the discrete contact regions comprises a length, a width, or a combination thereof that substantially corresponds to a dimension of the at least one abrasive particle.
    Type: Grant
    Filed: December 28, 2022
    Date of Patent: October 22, 2024
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Anuj Seth, Vivek Cheruvari Kottieth Raman, Darrell K. Everts
  • Patent number: 12059773
    Abstract: Systems and methods include providing a coated abrasive article with a substrate formed from a plurality of hygroscopic fibers, an abrasive layer comprising a make coat, a size coat, a supersize coat, or combinations thereof disposed on a first side of substrate, and an anti-curl layer disposed on a second side of the substrate. The polymer-based anti-curl layer allows the coated abrasive article to achieve a change in curl between ?5 millimeters and 25 millimeters, the change in curl being expressed as the curl of the coated abrasive article in millimeters at 90% relative humidity minus the curl of the coated abrasive article in millimeters at 20% relative humidity. The coated abrasive article exhibits substantially no loss of grinding performance, burst speed, or a combination thereof as compared to coated abrasive articles free of the anti-curl layer.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: August 13, 2024
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Timothy Jerome Coogan, Jeffrey H. Peet, Doruk O. Yener, Charles G. Lester, Darrell K. Everts, Yunshang Ma
  • Patent number: 12023783
    Abstract: An abrasive article including a substrate; and an abrasive layer overlying the substrate, where the abrasive layer includes a blend of abrasive particles including a first type of abrasive particle comprising a polycrystalline material and having a first average friability F1, and a second type of abrasive particle comprising a polycrystalline material and having a second average friability, F2, where the blend comprises an average friability difference, ?F=|F1?F2|, within a range of at least 0.5% to not greater than 80%.
    Type: Grant
    Filed: February 8, 2022
    Date of Patent: July 2, 2024
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Darrell K. Everts, Doruk O. Yener
  • Publication number: 20240198488
    Abstract: A coated abrasive article includes a substrate and a plurality of abrasive particles overlying the substrate, and the plurality of abrasive particles including tapered abrasive particles having a taper fraction standard deviation of at least 0.025 and not greater than 0.090.
    Type: Application
    Filed: February 23, 2024
    Publication date: June 20, 2024
    Inventors: Samuel S. MARLIN, Ralph BAUER, Stefan VUJCIC, Paul W. REHRIG, Marie-Camille AUSCHER, Darrell K. EVERTS, Hua FAN, Sujatha K. IYENGAR, Christopher ARCONA, Anthony MARTONE, Brahmanandam V. TANIKELLA
  • Patent number: 11926019
    Abstract: A coated abrasive article includes a substrate and a plurality of abrasive particles overlying the substrate, and the plurality of abrasive particles including tapered abrasive particles having a taper fraction standard deviation of at least 0.025 and not greater than 0.090.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: March 12, 2024
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Samuel S. Marlin, Ralph Bauer, Stefan Vujcic, Paul W. Rehrig, Marie-Camille Auscher, Darrell K. Everts, Hua Fan, Sujatha K. Iyengar, Christopher Arcona, Anthony Martone, Brahmanandam V. Tanikella
  • Publication number: 20230383158
    Abstract: A plurality of abrasive particles can include a coating overlying at least a portion of a core. In an embodiment, the plurality of abrasive particles can include a sintered coating overlying the core, wherein the sintered coating can include an oxide material, and wherein more than 75% of the plurality of abrasive particles are fully covered. In another embodiment, the plurality of abrasive particles can include a sintered coating overlying the core, wherein the sintered coating can include an oxide material, and wherein more the plurality of abrasive particles can have an average coating coverage of greater than 85% of the surface of the core. In an embodiment, the plurality of abrasive particles can include an average coating thickness of not greater than 2 microns. In another embodiment, the plurality of abrasive particles can include a thickness standard deviation of the coating of not greater than 200% of the average coating thickness. In a particular embodiment, the coating can include sintered silica.
    Type: Application
    Filed: October 8, 2021
    Publication date: November 30, 2023
    Inventors: Marc YONGER, Leslie DOS SANTOS, Anne M. BONNER, Mark W. SIMON, Subramanian RAMALINGAM, Anthony MARTONE, Hua FAN, Darrell K. EVERTS, Brahmanandam V. TANIKELLA, Aldric BARBIER
  • Patent number: 11685849
    Abstract: An abrasive particle can include a coating overlying at least a portion of a core. In an embodiment, the coating can include a first portion overlying at least a portion of the core and a second portion overlying at least a portion of the core, wherein the first portion can include a ceramic material and the second portion can include a silane or a silane reaction product. In a particular embodiment, the first portion can consist essentially of silica. In another particular embodiment, the first portion can include a surface roughness of not greater than 5 nm and a crystalline content of not greater than 60%.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: June 27, 2023
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Marc Yonger, Leslie Dos Santos, Anne M. Bonner, Mark W. Simon, Subramanian Ramalingam, Anthony Martone, Hua Fan, Darrell K. Everts, Brahmanandam V. Tanikella, Aldric Barbier
  • Publication number: 20230135441
    Abstract: A coated abrasive article comprising a backing, an adhesive layer disposed in a discontinuous distribution on at least a portion of the backing, wherein the discontinuous distribution comprises a plurality of adhesive contact regions and at least one shaped abrasive particle is disposed on a majority of each of the discrete adhesive contact regions, wherein at least 50% of the shaped abrasive particles comprise a predetermined side orientation and have a tilt angle of at least 45 degrees, wherein the shaped abrasive particles comprise a polycrystalline material and are free of binder, wherein the first plurality of discrete adhesive contact regions comprise a predetermined two-dimensional shape as viewed from above, and wherein each of the discrete contact regions comprises a length, a width, or a combination thereof that substantially corresponds to a dimension of the at least one abrasive particle.
    Type: Application
    Filed: December 28, 2022
    Publication date: May 4, 2023
    Inventors: Anuj SETH, Vivek CHERUVARI KOTTIEH RAMAN, Darrell K. EVERTS
  • Patent number: 11590632
    Abstract: A coated abrasive article comprising a backing, an adhesive layer disposed in a discontinuous distribution on at least a portion of the backing, wherein the discontinuous distribution comprises a plurality of adhesive contact regions and at least one shaped abrasive particle is disposed on a majority of each of the discrete adhesive contact regions, wherein at least 50% of the shaped abrasive particles comprise a predetermined side orientation and have a tilt angle of at least 45 degrees, wherein the shaped abrasive particles comprise a polycrystalline material and are free of binder, wherein the first plurality of discrete adhesive contact regions comprise a predetermined two-dimensional shape as viewed from above, and wherein each of the discrete contact regions comprises a length, a width, or a combination thereof that substantially corresponds to a dimension of the at least one abrasive particle.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: February 28, 2023
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Anuj Seth, Darrell K. Everts, Vivek Cheruvari Kottieth Raman
  • Publication number: 20220372354
    Abstract: An abrasive particle can include a coating overlying at least a portion of a core. In an embodiment, the coating can include a first portion overlying at least a portion of the core and a second portion overlying at least a portion of the core, wherein the first portion can include a ceramic material and the second portion can include a silane or a silane reaction product. In a particular embodiment, the first portion can consist essentially of silica. In another particular embodiment, the first portion can include a surface roughness of not greater than 5 nm and a crystalline content of not greater than 60%.
    Type: Application
    Filed: October 9, 2020
    Publication date: November 24, 2022
    Inventors: Marc YONGER, Leslie DOS SANTOS, Anne M. BONNER, Mark W. SIMON, Subramanian RAMALINGAM, Anthony MARTONE, Hua FAN, Darrell K. EVERTS, Brahmanandam V. TANIKELLA, Aldric BARBIER
  • Publication number: 20220161392
    Abstract: An abrasive article including a substrate; and an abrasive layer overlying the substrate, where the abrasive layer includes a blend of abrasive particles including a first type of abrasive particle comprising a polycrystalline material and having a first average friability F1, and a second type of abrasive particle comprising a polycrystalline material and having a second average friability, F2, where the blend comprises an average friability difference, ?F=|F1?F2|, within a range of at least 0.5% to not greater than 80%.
    Type: Application
    Filed: February 8, 2022
    Publication date: May 26, 2022
    Inventors: Darrell K. EVERTS, Doruk O. YENER
  • Patent number: 11260504
    Abstract: An abrasive article including a substrate; and an abrasive layer overlying the substrate, where the abrasive layer includes a blend of abrasive particles including a first type of abrasive particle comprising a polycrystalline material and having a first average friability F1, and a second type of abrasive particle comprising a polycrystalline material and having a second average friability, F2, where the blend comprises an average friability difference, ?F=|F1?F2|, within a range of at least 0.5% to not greater than 80%.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: March 1, 2022
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Darrell K. Everts, Doruk O. Yener
  • Publication number: 20220001512
    Abstract: An abrasive article comprising a first group including a plurality of shaped abrasive particles overlying a backing, wherein the plurality of shaped abrasive particles of the first group defines a first non-shadowing distribution relative to each other.
    Type: Application
    Filed: September 16, 2021
    Publication date: January 6, 2022
    Inventors: Anthony C. GAETA, Anuj SETH, Christopher ARCONA, Doruk O. YENER, Jennifer H. CZEREPINSKI, Sujatha K. IYENGAR, Frank J. CSILLAG, William C. RICE, Satyalakshmi K. RAMESH, Gregory G. LAFOND, Sidath S. WIJESOORIYA, Adam D. LIOR, Alan J. BRANDES, Anil PARMAR, Paul BRAUN, Darrell K. EVERTS
  • Publication number: 20220001513
    Abstract: The present disclosure relates generally to coated abrasive articles that include a grinding aid aggregates in a make coat, a size coat, a supersize coat, or combinations thereof, as well as methods of making coated abrasive articles.
    Type: Application
    Filed: September 21, 2021
    Publication date: January 6, 2022
    Inventors: Jianna WANG, Shih-Chieh KUNG, Sujatha K. IYENGAR, Doruk O. YENER, Darrell K. EVERTS
  • Patent number: 11154964
    Abstract: An abrasive article comprising a first group including a plurality of shaped abrasive particles overlying a backing, wherein the plurality of shaped abrasive particles of the first group define a first non-shadowing distribution relative to each other.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: October 26, 2021
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Anthony C. Gaeta, Anuj Seth, Christopher Arcona, Doruk O. Yener, Jennifer H. Czerepinski, Sujatha Iyengar, Frank J. Csillag, William C. Rice, Satyalakshmi K. Ramesh, Gregory G. Lafond, Sidath S. Wijesooriya, Adam D. Lior, Alan J. Brandes, Anil Parmar, Paul Braun, Darrell K. Everts
  • Patent number: 11148254
    Abstract: An abrasive article comprising a first group including a plurality of shaped abrasive particles overlying a backing, wherein the plurality of shaped abrasive particles of the first group define a first non-shadowing distribution relative to each other.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: October 19, 2021
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Anthony C. Gaeta, Anuj Seth, Christopher Arcona, Doruk O. Yener, Jennifer H. Czerepinski, Sujatha K. Iyengar, Frank J. Csillag, William C. Rice, Satyalakshmi K. Ramesh, Gregory G. Lafond, Sidath S. Wijesooriya, Adam D. Lior, Alan J. Brandes, Anil Parmar, Paul Braun, Darrell K. Everts
  • Patent number: 11148255
    Abstract: The present disclosure relates generally to coated abrasive articles that include a grinding aid aggregates in a make coat, a size coat, a supersize coat, or combinations thereof, as well as methods of making coated abrasive articles.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: October 19, 2021
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Jianna Wang, Shih-Chieh Kung, Sujatha K. Iyengar, Doruk O. Yener, Darrell K. Everts
  • Publication number: 20210197342
    Abstract: Systems and methods include providing a coated abrasive article with a substrate formed from a plurality of hygroscopic fibers, an abrasive layer comprising a make coat, a size coat, a supersize coat, or combinations thereof disposed on a first side of substrate, and an anti-curl layer disposed on a second side of the substrate. The polymer-based anti-curl layer allows the coated abrasive article to achieve a change in curl between ?5 millimeters and 25 millimeters, the change in curl being expressed as the curl of the coated abrasive article in millimeters at 90% relative humidity minus the curl of the coated abrasive article in millimeters at 20% relative humidity. The coated abrasive article exhibits substantially no loss of grinding performance, burst speed, or a combination thereof as compared to coated abrasive articles free of the anti-curl layer.
    Type: Application
    Filed: November 20, 2020
    Publication date: July 1, 2021
    Inventors: Timothy Jerome Coogan, Jeffrey H. Peet, Doruk O. Yener, Charles G. Lester, Darrell K. Everts, Yunshang Ma
  • Publication number: 20210197339
    Abstract: A coated abrasive article includes a substrate and a plurality of abrasive particles overlying the substrate, and the plurality of abrasive particles including tapered abrasive particles having a taper fraction standard deviation of at least 0.025 and not greater than 0.090.
    Type: Application
    Filed: December 23, 2020
    Publication date: July 1, 2021
    Inventors: Samuel S. MARLIN, Ralph BAUER, Stefan VUJCIC, Paul W. REHRIG, Marie-Camille AUSCHER, Darrell K. EVERTS, Hua FAN, Sujatha K. IYENGAR, Christopher ARCONA, Anthony MARTONE, Brahmanandam V. TANIKELLA