Patents by Inventor Christian Albert Jager

Christian Albert Jager 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).

  • Stress relieved grinding ball having hard outer shell
    Patent number: 6802914
    Abstract: A grinding ball having a 55 to 65 Rockwell C hardened outer shell of tempered martensite is adapted for use in heavy duty grinding environments. The ball is stress relieved to stabilize the ball against break up and/or spalling.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: October 12, 2004
    Assignee: Stelco Inc.
    Inventor: Christian Albert Jager
  • Stress relieved grinding ball having hard outer shell
    Publication number: 20040118485
    Abstract: A grinding ball having a 55 to 65 Rockwell C hardened outer shell of tempered martensite is adapted for use in heavy duty grinding environments. The ball is stress relieved to stabilize the ball against break up and/or spalling.
    Type: Application
    Filed: June 27, 2003
    Publication date: June 24, 2004
    Applicant: Stelco Inc.
    Inventor: Christian Albert Jager
  • Stress relieved grinding ball having hard outer shell
    Patent number: 6632303
    Abstract: A grinding ball having a 55 to 65 Rockwell C hardened outer shell of tempered martensite is adapted for use in a heavy duty grinding environment by stress relieving to stabilize the ball against break-up and/or spalling.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: October 14, 2003
    Assignee: Stelco Inc.
    Inventor: Christian Albert Jager
  • Stress relieved grinding ball having hard outer shell
    Publication number: 20020025771
    Abstract: A grinding ball having a 55 to 65 Rockwell C hardened outer shell of tempered martensite is adapted for use in heavy duty grinding environments.
    Type: Application
    Filed: March 12, 2001
    Publication date: February 28, 2002
    Applicant: Stelco Inc.
    Inventor: Christian Albert Jager