Patents by Inventor Eric J. Berdes

Eric J. Berdes 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).

  • Manually adjusted stage with nanometer digital readout
    Publication number: 20020129503
    Abstract: A stage assembly includes a first element and a second element. A coarse and fine adjustment mechanism is attached to the first element and engages the second element. Turning either a coarse or fine range selector produces relative movement of the second element in relation to the first element. An encoder is attached to the first element and the second element. The encoder detects movement of the second element in relation to the first element and determines the position of the second element from a home position. A display electrically connected to the encoder displays the position of the second element. A multiplier may be electrically connected to the encoder to partition a digital signal from the encoder to improve the resolution of the adjustment mechanism.
    Type: Application
    Filed: March 19, 2001
    Publication date: September 19, 2002
    Applicant: Aerotech, Inc.
    Inventors: Stephen J. Botos, Alexander R. Weibel, Eric J. Berdes, Anthony E. Castle