Patents by Inventor Gregory Koehnle

Gregory Koehnle 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: 20120258652
    Abstract: Provided is a flat-faced buffing pad that includes a plurality of apertures of variable size. The apertures are generally larger in the areas toward the center of the pad, while being generally smaller in the areas toward the periphery of the pad. Some embodiments further include apertures disposed along one or more concentric circular rings located along the front surface and generally symmetrical about the rotation axis. These configurations of apertures provide both superior cut performance and superior finish. Moreover, these configurations minimize several undesirable aspects in a polishing operation, such as slinging of the polishing compound, vibration, wobbling, and drag felt by the operator as the rotary pad slides across the surface to be polished.
    Type: Application
    Filed: November 9, 2010
    Publication date: October 11, 2012
    Inventors: Gregory A. Koehnle, Scott R. Culler, Brant A. Moegenburg, Schoen A. Schuknecht, Edward J. Woo
  • Patent number: 7618306
    Abstract: Conformable abrasive article comprising: a backing having a first major surface; a deformable material contacting a central portion of the first major surface; an elastic member affixed to the first major surface of the backing and together with the backing enclosing the deformable material; and an abrasive member affixed to the elastic member, wherein the abrasive member comprises abrasive particles and a binder; and methods of making and using the same.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: November 17, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Peter A. Felipe, Sr., James W. Schutz, Gregory A. Koehnle, Michael J. Annen, Albert I. Everaerts
  • Patent number: 7410413
    Abstract: A structured abrasive article comprises a backing, a structured abrasive layer affixed to the backing, the structured abrasive layer comprising: a plurality of raised abrasive regions, each raised abrasive region consisting essentially of a close-packed plurality of pyramidal abrasive composites; and a network consisting essentially of close-packed truncated pyramidal abrasive composites, wherein the network continuously abuts and separates the raised abrasive regions from one another. The height of the pyramidal abrasive composites is greater than the height of the truncated pyramidal abrasive composites. Methods of making and using the same are also disclosed.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: August 12, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Edward J. Woo, Craig F. Lamphere, Gregory A. Koehnle
  • Publication number: 20070254560
    Abstract: A structured abrasive article comprises a backing, a structured abrasive layer affixed to the backing, the structured abrasive layer comprising: a plurality of raised abrasive regions, each raised abrasive region consisting essentially of a close-packed plurality of pyramidal abrasive composites; and a network consisting essentially of close-packed truncated pyramidal abrasive composites, wherein the network continuously abuts and separates the raised abrasive regions from one another. The height of the pyramidal abrasive composites is greater than the height of the truncated pyramidal abrasive composites. Methods of making and using the same are also disclosed.
    Type: Application
    Filed: April 27, 2006
    Publication date: November 1, 2007
    Inventors: Edward Woo, Craig Lamphere, Gregory Koehnle
  • Publication number: 20070243798
    Abstract: An embossed structured abrasive article having an inelastic dense thermoplastic film backing and a structured abrasive layer. Both the backing and the structured abrasive layer have superposed embossed features. Methods of making and using embossed structured abrasive articles are also disclosed.
    Type: Application
    Filed: April 18, 2006
    Publication date: October 18, 2007
    Inventors: Michael Annen, Gregory Koehnle
  • Publication number: 20070066186
    Abstract: Flexible abrasive article comprising a compressible backing having first and second opposed major surfaces; an elastic polyurethane film affixed to at least a portion of the first major surface of the compressible backing; an optional extensible tie layer affixed to at least a portion of the elastic polyurethane film; and an abrasive layer affixed to at least a portion of the optional extensible tie layer or elastic polyurethane film, the abrasive layer comprising abrasive particles and a binder. Methods of making and using the flexible abrasive article are also disclosed.
    Type: Application
    Filed: September 22, 2005
    Publication date: March 22, 2007
    Inventors: Michael Annen, Gregory Koehnle, James Schutz, Ian Owen, Albert Everaerts
  • Publication number: 20070066185
    Abstract: Conformable abrasive article comprising: a backing having a first major surface; a deformable material contacting a central portion of the first major surface; an elastic member affixed to the first major surface of the backing and together with the backing enclosing the deformable material; and an abrasive member affixed to the elastic member, wherein the abrasive member comprises abrasive particles and a binder; and methods of making and using the same.
    Type: Application
    Filed: September 22, 2005
    Publication date: March 22, 2007
    Inventors: Peter Felipe, James Schutz, Gregory Koehnle, Michael Annen, Albert Everaerts
  • Patent number: 6773474
    Abstract: Coated abrasive articles comprise a backing and an abrasive layer, and optionally at least one of a backsize layer, tie layer, supersize layer, presize layer, or saturant. The coated abrasive article comprises a reaction product of components comprising: polyfunctional acrylate; polyfunctional cationically polymerizable material; free radical photoinitiator; triarylsulfonium salt having the formula wherein R1, R2 and R3 independently represent an, optionally substituted, aromatic group having from about 4 to about 20 carbon atoms, and Y− represents a non-interfering anion; and quaternary ammonium salt having the formula wherein X− is a non-interfering anion.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: August 10, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Gregory A. Koehnle, Edward J. Woo
  • Publication number: 20030200701
    Abstract: Coated abrasive articles comprise a backing and an abrasive layer, and optionally at least one of a backsize layer, tie layer, supersize layer, presize layer, or saturant.
    Type: Application
    Filed: April 19, 2002
    Publication date: October 30, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Gregory A. Koehnle, Edward J. Woo
  • Patent number: 5142415
    Abstract: A back-lit display having a window including a light-collimating film. The light-collimating film has an opaque material on a surface thereof. A material of a predetermined color is on the opaque material in registration therewith.
    Type: Grant
    Filed: June 15, 1989
    Date of Patent: August 25, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Gregory A. Koehnle