Patents by Inventor Carl H. Ludwig

Carl H. Ludwig 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).

  • Precision pressure generator
    Patent number: 4084239
    Abstract: Apparatus for rapidly generating highly accurate pressures for testing pressure responsive equipment such as may be used for aircraft control purposes. The apparatus may be used in an airborne mode or in a shop or repair depot. Highly accurate pressures are dependably and consistently provided for the aforenoted testing purposes by providing a system having interfacing digital, analog and pneumatic sections.
    Type: Grant
    Filed: November 18, 1976
    Date of Patent: April 11, 1978
    Assignee: The Bendix Corporation
    Inventors: Harry G. Anastasia, Wallace D. Kineyko, Carl H. Ludwig