Patents by Inventor Charles H. Houck

Charles H. Houck 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).

  • Abrasive article containing an inorganic metal orthophosphate
    Patent number: 6270543
    Abstract: An abrasive article, and methods of making and using same, containing an inorganic metal orthophosphate salt. The abrasive article including a coated abrasive article having a size or supersize coating layer containing an alkali metal or alkaline earth metal orthophosphate salt devoid of hydrogen. The inventive abrasive article reduces the grinding energy required while improving abrading efficiency in some cases.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: August 7, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: John J. Gagliardi, Charles H. Houck
  • Abrasive article containing an inorganic metal orthophosphate
    Patent number: 5961674
    Abstract: An abrasive article, and methods of making and using same, containing an inorganic metal orthophosphate salt. The abrasive article including a coated abrasive article having a size or supersize coating layer containing an alkali metal or alkaline earth metal orthophosphate salt devoid of hydrogen. The inventive abrasive article reduces the grinding energy required while improving abrading efficiency in some cases.
    Type: Grant
    Filed: October 2, 1997
    Date of Patent: October 5, 1999
    Assignee: 3M Innovative Properties Company
    Inventors: John J. Gagliardi, Charles H. Houck
  • Coated abrasive containing erodible agglomerates
    Patent number: 5578098
    Abstract: Coated abrasive article comprising a backing bearing on at least one major surface thereof erodible agglomerates and abrasive grains, wherein the erodible agglomerates consist essentially of a grinding aid and the erodible agglomerates are in the form of rods. The erodible agglomerates can be between or above or between and above the abrasive grains. The coated abrasive article of this invention utilizes a higher level of grinding aid than coated abrasive articles of the prior art.
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: November 26, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John J. Gagliardi, Jason A. Chesley, Charles H. Houck, Richard J. Cosmano, Ernest J. Duwell
  • Abrasive articles, methods of making abrasive articles, and methods of using abrasive articles
    Patent number: 5562745
    Abstract: Abrasive articles comprising a plurality of abrasive particles, a combination of potassium tetrafluoroborate and a halogenated polymer, and a binder to which the plurality of abrasive particles are adhered, and methods of making and using the abrasive articles.
    Type: Grant
    Filed: February 10, 1995
    Date of Patent: October 8, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John J. Gagliardi, Jason A. Chesley, Charles H. Houck, Walter L. Harmer, Gary L. Olson