Patents by Inventor Robert D. Nixon

Robert D. Nixon 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).

  • PHYSICAL ACTIVITY USER INTERFACES
    Publication number: 20240077309
    Abstract: The present disclosure generally relates to displaying information related to a physical activity. In some embodiments, methods and user interfaces for managing the display of information related to a physical activity are described.
    Type: Application
    Filed: January 12, 2023
    Publication date: March 7, 2024
    Inventors: Nicholas D. FELTON, James B. CARY, Edward CHAO, Kevin W. CHEN, Christopher P. FOSS, Eamon F. GILRAVI, Austen J. GREEN, Bradley W. GRIFFIN, Anders K. HAGLUNDS, Lori HYLAN-CHO, Stephen P. JACKSON, Matthew S. KOONCE, Paul T. NIXON, Robert M. PEARSON
  • Silicon nitride ceramic and cutting tool made thereof
    Patent number: 5525134
    Abstract: Provided is a silicon nitride based ceramic which is particularly useful for use as a cutting tool in the high speed chip forming machining of metallic materials. The ceramic is preferably composed of at least 85 volume percent (v/o) beta silicon nitride phase and less than about 5 v/o intergranular phase. The ceramic has greater than 0.2 weight percent (w/o) magnesia, greater than 0.2 w/o yttria, where the sum of magnesia and yttria is less than 5 w/o. The ceramic preferably has less than 0.2 v/o porosity.
    Type: Grant
    Filed: January 12, 1995
    Date of Patent: June 11, 1996
    Assignee: Kennametal Inc.
    Inventors: Pankaj K. Mehrotra, Robert D. Nixon
  • Silicon nitride ceramic and cutting tool made thereof
    Patent number: 5382273
    Abstract: Provided is a silicon nitride based ceramic which is particularly useful for use as a cutting tool in the high speed chip forming machining of metallic materials. The ceramic is preferably composed of at least 85 volume percent (v/o) beta silicon nitride phase and less than about 5 v/o intergranular phase. The ceramic has greater than 0.2 weight percent (w/o) magnesia, greater than 0.2 w/o yttria, where the sum of magnesia and yttria is less than 5 w/o. The ceramic has less than 0.2 v/o porosity.
    Type: Grant
    Filed: January 15, 1993
    Date of Patent: January 17, 1995
    Assignee: Kennametal Inc.
    Inventors: Pankaj K. Mehrotra, Robert D. Nixon
  • High Z sialon and cutting tools made therefrom and method of using
    Patent number: 5370716
    Abstract: A ceramic material for use as a cutting tool in the high speed machining of high temperature alloys and cast irons is provided with a composition of beta prime sialon (Si.sub.6-z Al.sub.z O.sub.z N.sub.8-2 ; where 1<Z<3) and intergranular phase. The material has high wear resistance and reliability when used in the high speed machining of high temperature alloys at speeds of 300 to 1500 surface feet per minute.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: December 6, 1994
    Assignee: Kennamental Inc.
    Inventors: Pankaj K. Mehrotra, Joyce L. Swiokla, Robert D. Nixon