Patents by Inventor Mullard A. Nunnally

Mullard A. Nunnally 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).

  • Stiff cross roller bearing configuration
    Patent number: 6655840
    Abstract: A translation table with a pair of bearing assemblies located between a first element and a second element. Each bearing assembly has a pair of roller bearings located at one end of a bearing separator strip, and another pair of roller bearings located at an opposite end of the separator strip. There are no bearings located between the outer pairs of roller bearings. Providing a roller bearing assembly with no roller bearings in the inner portion of the separator strip creates a relatively stiff bearing assembly.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: December 2, 2003
    Assignee: Newport Corporation
    Inventor: Mullard A. Nunnally
  • Translation table with a spring biased dovetail bearing
    Patent number: 6601524
    Abstract: A translation table that has a spring biased dovetail bearing. The table includes a first element with a dovetail groove and a second element with a dovetail bearing located in the groove. The table further includes one or more springs that press the bearing into the groove. The spring force may be selected to eliminate lateral movement between the first and second elements while minimizing the friction of the bearing. The spring force may be varied by a screw(s) that engages the spring(s).
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: August 5, 2003
    Assignee: Newport Corporation
    Inventors: Douglas Janata, Mullard A. Nunnally, Michael Francisco