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).
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Publication number: 20250025988Abstract: 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: ApplicationFiled: September 16, 2024Publication date: January 23, 2025Inventors: Anuj SETH, Vivek Cheruvari Kottieth Raman, Darrell K. Everts
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Patent number: 12122017Abstract: 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: GrantFiled: December 28, 2022Date of Patent: October 22, 2024Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFSInventors: Anuj Seth, Vivek Cheruvari Kottieth Raman, Darrell K. Everts
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Patent number: 12059773Abstract: 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: GrantFiled: November 20, 2020Date of Patent: August 13, 2024Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFSInventors: Timothy Jerome Coogan, Jeffrey H. Peet, Doruk O. Yener, Charles G. Lester, Darrell K. Everts, Yunshang Ma
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Patent number: 12023783Abstract: 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: GrantFiled: February 8, 2022Date of Patent: July 2, 2024Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFSInventors: Darrell K. Everts, Doruk O. Yener
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Patent number: 11926019Abstract: 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: GrantFiled: December 23, 2020Date of Patent: March 12, 2024Assignee: 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
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Patent number: 11685849Abstract: 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: GrantFiled: October 9, 2020Date of Patent: June 27, 2023Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFSInventors: 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
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Patent number: 11590632Abstract: 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: GrantFiled: April 27, 2020Date of Patent: February 28, 2023Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFSInventors: Anuj Seth, Darrell K. Everts, Vivek Cheruvari Kottieth Raman
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Patent number: 11260504Abstract: 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: GrantFiled: August 31, 2018Date of Patent: March 1, 2022Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFSInventors: Darrell K. Everts, Doruk O. Yener
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Patent number: 11154964Abstract: 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: GrantFiled: November 9, 2016Date of Patent: October 26, 2021Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFSInventors: 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
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Patent number: 11148254Abstract: 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: GrantFiled: March 20, 2019Date of Patent: October 19, 2021Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFSInventors: 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
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Patent number: 11148255Abstract: 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: GrantFiled: December 21, 2018Date of Patent: October 19, 2021Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFSInventors: Jianna Wang, Shih-Chieh Kung, Sujatha K. Iyengar, Doruk O. Yener, Darrell K. Everts
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Publication number: 20210197342Abstract: 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: ApplicationFiled: November 20, 2020Publication date: July 1, 2021Inventors: Timothy Jerome Coogan, Jeffrey H. Peet, Doruk O. Yener, Charles G. Lester, Darrell K. Everts, Yunshang Ma
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Publication number: 20200262031Abstract: 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: ApplicationFiled: April 27, 2020Publication date: August 20, 2020Inventors: Anuj SETH, Darrell K. Everts, Vivek Cheruvari Kottieth Raman
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Patent number: 10668598Abstract: 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: GrantFiled: November 28, 2018Date of Patent: June 2, 2020Assignee: SAINT-GOBAIN ABRASIVES, INC./SAINT-GOBAIN ABRASIFSInventors: Anuj Seth, Darrell K. Everts, Vivek Cheruvari Kottieth Raman
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Publication number: 20190202031Abstract: 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: ApplicationFiled: December 21, 2018Publication date: July 4, 2019Inventors: Jianna WANG, Shih-Chieh Kung, Sujatha K. Iyengar, Doruk O. Yener, Darrell K. Everts
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Patent number: 10286523Abstract: 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: GrantFiled: July 29, 2016Date of Patent: May 14, 2019Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFSInventors: 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
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Patent number: 10179391Abstract: 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 having at least one of a lateral spacing or a longitudinal spacing between each of the adhesive contact regions; and at least one abrasive particle disposed on each adhesive contact region, the abrasive particle having a tip, and there being at least one of a lateral spacing or a longitudinal spacing between each of the abrasive particles, and wherein at least 65% of the at least one of a lateral spacing and a longitudinal spacing between the tips of the abrasive particles is within 2.5 standard deviations of the mean.Type: GrantFiled: September 9, 2016Date of Patent: January 15, 2019Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFSInventors: Anuj Seth, Darrell K. Everts, Vivek Cheruvari Kottieth Raman
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Publication number: 20170050293Abstract: 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: ApplicationFiled: November 9, 2016Publication date: February 23, 2017Inventors: 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
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Publication number: 20170028531Abstract: 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: ApplicationFiled: July 29, 2016Publication date: February 2, 2017Inventors: 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
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Patent number: 9457453Abstract: 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 having at least one of a lateral spacing or a longitudinal spacing between each of the adhesive contact regions; and at least one abrasive particle disposed on each adhesive contact region, the abrasive particle having a tip, and there being at least one of a lateral spacing or a longitudinal spacing between each of the abrasive particles, and wherein at least 65% of the at least one of a lateral spacing and a longitudinal spacing between the tips of the abrasive particles is within 2.5 standard deviations of the mean.Type: GrantFiled: March 31, 2014Date of Patent: October 4, 2016Assignee: SAINT-GOBAIN ABRASIVES, INC./SAINT-GOBAIN ABRASIFSInventors: Anuj Seth, Darrell K. Everts, Vivek Cheruvari Kottieth Raman