Patents by Inventor Duane J. Hayes

Duane J. Hayes 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).

  • Method of making abrasive filaments comprising abrasive-filled thermoplastic elastomer
    Patent number: 5837179
    Abstract: An abrasive filament, including a thermoplastic elastomer having abrasive particles dispersed and adhered therein, exhibits improved life over previously known abrasive-filled polymeric filaments. Methods of making abrasive filaments of the invention, articles including the abrasive filaments, and methods of abrading surfaces using the abrasive articles of the invention are also described.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: November 17, 1998
    Assignee: Minnesota Mining and Manufacturing Copmany
    Inventors: Richard M. Pihl, Duane J. Hayes, Loren L. Barber, Jr., Dennis G. Welygan, R. Eugene Hardwick, Ronald O. Zemke, deceased
  • Abrasive filaments comprising abrasive-filled thermoplastic elastomer
    Patent number: 5491025
    Abstract: An abrasive filament, including a thermoplastic elastomer having abrasive particles dispersed and adhered therein, exhibits improved life over previously known abrasive-filled polymeric filaments. Methods of making abrasive filaments of the invention, articles including the abrasive filaments, and methods of abrading surfaces using the abrasive articles of the invention are also described.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: February 13, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Richard M. Pihl, Duane J. Hayes, Loren L. Barber, Jr., Dennis G. Welygan, R. Eugene Hardwick, Ronald O. Zemke, deceased
  • Abrasive filaments comprising abrasive-filled thermoplastic elastomer, methods of making same, articles incorporting same and methods of using said articles
    Patent number: 5443906
    Abstract: An abrasive filament, including a thermoplastic elastomer having abrasive particles dispersed and adhered therein, exhibits improved life over previously known abrasive-filled polymeric filaments. Methods of making abrasive filaments of the invention, articles including the abrasive filaments, and methods of abrading surfaces using the abrasive articles of the invention are also described.
    Type: Grant
    Filed: December 8, 1994
    Date of Patent: August 22, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Richard M. Pihl, Duane J. Hayes, Loren L. Barber, Jr., Dennis G. Welygan, R. Eugene Hardwick, Ronald O. Zembke, deceased
  • Abrasive filaments comprising abrasive-filled thermoplastic elastomer, methods of making same, articles incorporating same and methods of using said articles
    Patent number: 5427595
    Abstract: An abrasive filament, including a thermoplastic elastomer having abrasive particles dispersed and adhered therein, exhibits improved life over previously known abrasive-filled polymeric filaments. Methods of making abrasive filaments of the invention, articles including the abrasive filaments, and methods of abrading surfaces using the abrasive articles of the invention are also described.
    Type: Grant
    Filed: May 21, 1993
    Date of Patent: June 27, 1995
    Assignee: Minnesota Mining and Manufacturing
    Inventors: Richard M. Pihl, Duane J. Hayes, Loren L. Barber, Jr., Dennis G. Welygan, R. Eugene Hardwick, Ronald O. Zemke, deceased
  • Melt-bondable fibers for use in nonwoven web
    Patent number: 5082720
    Abstract: Melt-bondable, bicomponent fibers suitable for use in nonwoven articles, said fibers having as a first component a polymer capable of forming fibers and as a second component a compatible blend of polymers capable of adhering to the surface of the first component. The second component has a melting temperature at least 30.degree. C. below the melting temperature of the first component, but at least about 130.degree. C. The blend of polymers of the second component comprises a compatible mixture of at least a partially crystalline polymer and an amorphous polymer.
    Type: Grant
    Filed: May 6, 1988
    Date of Patent: January 21, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Duane J. Hayes