Patents by Inventor Thomas W. Rambosek
Thomas W. Rambosek 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: 20150217428Abstract: A coated abrasive article having an abrasive layer formed from alumina-zirconia (AZ) abrasive particles and glass diluent particles was found to have excellent grinding performance when compared to abrasive layers formed from 100 percent AZ particles or a blend of 60 percent AZ particles and 40 percent aluminum oxide particles. Replacing the significantly harder aluminum oxide particles with the much softer glass particles while still being able to maintain the same performance of the abrasive disc was an unexpected result.Type: ApplicationFiled: August 13, 2013Publication date: August 6, 2015Inventors: Ronald D. Provow, Thomas W. Rambosek
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Patent number: 7628829Abstract: An abrasive article comprises a porous abrasive member, a nonwoven filter medium, and a porous attachment fabric. A plurality of openings in the porous abrasive member cooperates with the nonwoven filter medium to allow the flow of particles from an outer abrasive surface of the porous abrasive member to the porous attachment fabric. Methods of making and using the abrasive articles are included.Type: GrantFiled: March 20, 2007Date of Patent: December 8, 2009Assignee: 3M Innovative Properties CompanyInventors: Edward J. Woo, Thomas W. Rambosek, Seyed A. Angadjivand, Mary B. Donovan, Rufus C. Sanders, Jr., Yeun-Jong Chou
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Patent number: 7452265Abstract: An abrasive article with an integral dust collection system. The abrasive article comprises a porous abrasive layer with openings, a first filter media with channels, a second filter media, a third filter media with channels, a fourth filter media, and an optional attachment layer. The openings of the porous abrasive layer cooperate with the channels to allow the flow of particles from the abrasive surface to the filter media.Type: GrantFiled: December 21, 2006Date of Patent: November 18, 2008Assignee: 3M Innovative Properties CompanyInventors: Thomas W. Rambosek, Edward J. Woo, Curtis J. Schmidt
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Publication number: 20080229672Abstract: An abrasive article comprises a porous abrasive member, a nonwoven filter medium, and a porous attachment fabric. A plurality of openings in the porous abrasive member cooperates with the nonwoven filter medium to allow the flow of particles from an outer abrasive surface of the porous abrasive member to the porous attachment fabric. Methods of making and using the abrasive articles are included.Type: ApplicationFiled: March 20, 2007Publication date: September 25, 2008Inventors: Edward J. Woo, Thomas W. Rambosek, Seyed A. Angadjivand, Mary B. Donovan, Rufus C. Sanders, Yeun-Jong Chou
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Publication number: 20080233850Abstract: An abrasive article comprises a porous abrasive member, a nonwoven filter medium, a second nonwoven filter medium, and optionally a porous attachment layer. A plurality of openings in the porous abrasive member cooperates with the first nonwoven filter medium to allow the flow of particles from an outer abrasive surface of the porous abrasive member to the second nonwoven filter medium. Methods of making and using the abrasive articles are included.Type: ApplicationFiled: March 20, 2007Publication date: September 25, 2008Inventors: Edward J. Woo, Thomas W. Rambosek, Seyed A. Angadjivand, Mary B. Donovan, Rufus C. Sanders, Yeun-Jong Chou
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Patent number: 7393269Abstract: An abrasive filter assembly with an integral dust collection system. The abrasive filter assembly comprises a porous element, a first filter media with channels, a second filter media, and an attachment interface layer. The openings of the porous element cooperate with the channels to allow the flow of particles from the porous element to the second filter media. The porous element can be an abrasive article or an attachment surface for an abrasive article.Type: GrantFiled: September 16, 2005Date of Patent: July 1, 2008Assignee: 3M Innovative Properties CompanyInventors: Thomas W. Rambosek, Rufus C. Sanders, Jr.
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Publication number: 20080153407Abstract: An abrasive article with an integral dust collection system. The abrasive article comprises a porous abrasive layer with openings, a first filter media with channels, a second filter media, a third filter media with channels, a fourth filter media, and an optional attachment layer. The openings of the porous abrasive layer cooperate with the channels to allow the flow of particles from the abrasive surface to the filter media.Type: ApplicationFiled: December 21, 2006Publication date: June 26, 2008Inventors: Thomas W. Rambosek, Edward J. Woo, Curtis J. Schmidt
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Patent number: 7390244Abstract: An abrasive article mounting assembly with an integral dust collection system. The abrasive attachment interface is configured to releasably engage and support an abrasive article, such as, for example, a porous abrasive sheet or disc.Type: GrantFiled: September 16, 2005Date of Patent: June 24, 2008Assignee: 3M Innovative Properties CompanyInventors: Edward J. Woo, Thomas W. Rambosek, Rufus C. Sanders, Jr., Ehrich J. Braunschweig, Seyed A. Angadjivand, Suresh Kalatoor, Curtis J. Schmidt, Charles R. Wald, Donna W. Bange
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Patent number: 7329175Abstract: A porous abrasive article that allows air and dust particles to pass through. The abrasive article has a screen abrasive and a porous attachment interface. The screen abrasive has an abrasive layer comprising a plurality of erectly oriented abrasive particles and at least one binder. The porous attachment interface cooperates with the screen abrasive to allow the flow of particles through the abrasive article.Type: GrantFiled: December 29, 2005Date of Patent: February 12, 2008Assignee: 3M Innovative Properties CompanyInventors: Edward J. Woo, Thomas W. Rambosek, Curtis J. Schmidt
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Patent number: 7244170Abstract: An abrasive article with an integral dust collection system. The abrasive article comprises a porous abrasive layer with openings, a first filter media with channels, a second filter media, and an attachment interface layer. The openings of the porous abrasive layer cooperate with the channels to allow the flow of particles from the abrasive surface to the second filter media.Type: GrantFiled: September 16, 2005Date of Patent: July 17, 2007Assignee: 3M Innovative Properties Co.Inventors: Edward J. Woo, Thomas W. Rambosek, Rufus C. Sanders, Jr., Ehrich J. Braunschweig, Seyed A. Angadjivand, Suresh Kalatoor, Curtis J. Schmidt, Charles R. Wald, Donna W. Bange
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Patent number: 6497961Abstract: A ceramer composition is provided that comprises a plurality of colloidal inorganic oxide particles and a free-radically curable binder precursor. The free-radically curable binder precursor comprises a fluorochemical component that further comprises at least two free-radically curable moieties and at least one fluorinated moiety. By virtue of the inclusion of the fluorochemical component, the ceramer compositions of the present invention can be used to provide ceramer composites and ceramer composite structures with excellent stain, oil and/or water repellency characteristics as well as a high level of abrasion resistance and hardness.Type: GrantFiled: March 29, 2001Date of Patent: December 24, 2002Assignee: 3M Innovative Properties CompanyInventors: Soonkun Kang, George G. I. Moore, Thomas W. Rambosek
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Publication number: 20020001710Abstract: A ceramer composition is provided that comprises a plurality of colloidal inorganic oxide particles and a free-radically curable binder precursor. The free-radically curable binder precursor comprises a fluorochemical component that further comprises at least two free-radically curable moieties and at least one fluorinated moiety. By virtue of the inclusion of the fluorochemical component, the ceramer compositions of the present invention can be used to provide ceramer composites and ceramer composite structures with excellent stain, oil and/or water repellency characteristics as well as a high level of abrasion resistance and hardness.Type: ApplicationFiled: March 29, 2001Publication date: January 3, 2002Inventors: Soonkun Kang, George G.I. Moore, Thomas W. Rambosek
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Patent number: 6265061Abstract: A retroreflective article comprising a substrate and a cured ceramer coating provided on at least a portion of a surface of the substrate. The coated portion of the surface is retroreflective and can be dew-resistant. The ceramer is derived from a free-radically-curable binder, colloidal inorganic oxide and fluoro/silane component comprising a hydrolyzable silane moiety and a fluorinated moiety.Type: GrantFiled: September 3, 1999Date of Patent: July 24, 2001Assignee: 3M Innovative Properties CompanyInventors: Soonkun Kang, John L. Ethen, Gregory E. Gilligan, Christopher J. Gustafson, Sithya Seda Khieu, Kanta Kumar, Thomas W. Rambosek, Tzu Li Joseph Huang
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Patent number: 6238798Abstract: A ceramer composition is provided that comprises a plurality of colloidal inorganic oxide particles and a free-radically curable binder precursor. The free-radically curable binder precursor comprises a fluorochemical component that further comprises at least two free-radically curable moieties and at least one fluorinated moiety. By virtue of the inclusion of the fluorochemical component, the ceramer compositions of the present invention can be used to provide ceramer composites and ceramer composite structures with excellent stain, oil and/or water repellency characteristics as well as a high level of abrasion resistance and hardness.Type: GrantFiled: February 22, 1999Date of Patent: May 29, 2001Assignee: 3M Innovative Properties CompanyInventors: Soonkun Kang, George G. I. Moore, Thomas W. Rambosek
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Patent number: 6132861Abstract: A retroreflective article comprising a substrate and a cured ceramer coating provided on at least a portion of a surface of the substrate. The coated portion of the surface is retroreflective. The coating comprises a cured ceramer composite derived from ingredients comprising a free radically curable binder precursor and a plurality of surface treated, colloidal inorganic oxide components. The colloidal inorganic oxide components are surface treated with a surface treatment agent comprising a fluoro/silane component comprising a hydrolyzable silane moiety and a fluorinated moiety, and a crosslinkable silane component comprising a hydrolyzable silane moiety and a free radically crosslinkable moiety. The weight ratio of the crosslinkable silane component to the fluoro/silane component is from about 4:1 to 20:1, and the weight ratio of the free radically curable binder precursor to the colloidal inorganic oxide components is from about 1:10 to 8:10.Type: GrantFiled: May 4, 1998Date of Patent: October 17, 2000Assignee: 3M Innovatives Properties CompanyInventors: Soonkun Kang, John L. Ethen, Gregory E. Gilligan, Christopher J. Gustafson, Tzu Li Joseph Huang, Sithya Seda Khieu, Kanta Kumar, Thomas W. Rambosek
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Patent number: 5633049Abstract: The present invention provides an acid-resistant protective coating, preferably an acid- and abrasion-resistant protective coating, for thermoplastic transparencies, particularly aircraft transparencies. The coating is prepared from a silica-free protective coating precursor composition comprising a multifunctional ethylenically unsaturated ester of acrylic acid, a multifunctional ethylenically unsaturated ester of methacrylic acid, or a combination thereof; and an acrylamide.Type: GrantFiled: September 8, 1995Date of Patent: May 27, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: Zayn Bilkadi, Thomas W. Rambosek
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Patent number: 5400458Abstract: A brush segment for an industrial brush is described. The brush segment includes a polymeric base portion, a plurality of bristles individually anchored to the polymeric base portion and projecting outwardly therefrom and means for securing the brush segment to the hub of a rotary brush. The polymeric base portion preferably comprises a thermoset urethane material. The root member may comprise an extension of material independent of the polymeric base portion which is non-mechanically secured to the polymeric base portion.Type: GrantFiled: March 31, 1993Date of Patent: March 28, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventor: Thomas W. Rambosek