Patents by Inventor Laurie A. Windisch

Laurie A. Windisch 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).

  • Patent number: 6352567
    Abstract: Described are abrasive articles comprising a nonwoven; a binder layer contacting the nonwoven and at least partially filling spaces between fibers of the nonwoven; first abrasive particles adhered to the binder layer; a slurry layer comprising a second binder and second abrasive particles, the slurry layer contacting the nonwoven and the first layer and at least partially filling spaces within the fibers of the nonwoven; and, methods of preparation of such articles.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: March 5, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Laurie A. Windisch, Mary Beth Donovan, Loc X. Van, Gary T. Stram
  • Patent number: 6207246
    Abstract: A longitudinally extending web of lofty nonwoven abrasive surface treatment material is provided in a coreless roll form to the end user. Successive wraps of the nonwoven abrasive material have interengaging surfaces sufficient to maintain the material in a spirally wrapped configuration yet being readily separable. A plurality of longitudinally spaced and laterally disposed perforations through the web permit the user to successively separate the web into a plurality of sheets of abrasive surface treatment material. In a preferred embodiment, the roll is encased in a protective shrink wrap sheath, and each sheet is separated from the roll by separating said sheet from an innermost wrap of the roll. In another preferred embodiment, the abrasive surface treatment material includes abrasive particles of 1000 grade or finer.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: March 27, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Louis S. Moren, Douglas S. Spencer, Laurie A. Windisch
  • Patent number: 5712210
    Abstract: A longitudinally extending web of lofty nonwoven abrasive surface treatment material is provided in a coreless roll form to the end user. Successive wraps of the nonwoven abrasive material have interengaging surfaces sufficient to maintain the material in a spirally wrapped configuration yet being readily separable. A plurality of longitudinally spaced and laterally disposed perforations through the web permit the user to successively separate the web into a plurality of sheets of abrasive surface treatment material. In a preferred embodiment, the roll is encased in a protective shrink wrap sheath, and each sheet is separated from the roll by separating said sheet from an innermost wrap of the roll.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: January 27, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Laurie A. Windisch, Louis S. Moren, Charlie A. Hanf, C. Mathew Barnard