Patents by Inventor Albert L. Mitchell

Albert L. Mitchell 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 and apparatus to determine the imbalance in a rotating object
    Patent number: 4423632
    Abstract: An apparatus to determine the imbalance in a rotating object, such as a tire, has means to support the object and drive means directly coupled to the support means for accelerating the object. Means for removing power to the drive means and force transducer means for continuously measuring the magnitude of the imbalance of the object as the velocity of the object decreases, are also provided.
    Type: Grant
    Filed: February 25, 1981
    Date of Patent: January 3, 1984
    Assignee: QYL Inc.
    Inventors: Allen C. Madden, Albert L. Mitchell
  • Read-out system for wheel balancer
    Patent number: 4155255
    Abstract: A read-out system and method for a wheel balancing machine employs means for determining the minimum angular displacement between a "balance point" on the wheel and a predetermined reference for a stationary portion of the machine using a first scale of displacement and means for converting the minimum angular displacement from the first scale to a second scale. Using the second scale for indicating the balance point enhances the sensitivity of the display means at the balance point. A method is carried out for indicating alignment between the balance point where weight is to be added to an unbalanced wheel to balance same and a predetermined reference position for the machine.
    Type: Grant
    Filed: May 22, 1978
    Date of Patent: May 22, 1979
    Assignee: Nortron Corporation
    Inventors: Donald R. Sherman, Donald B. Curchod, Albert L. Mitchell