Patents by Inventor William E. Langley

William E. Langley 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 for testing repeatability of a rheologic system
    Patent number: 4899576
    Abstract: A method for testing the repeatability of test runs of a rheologic instrument. Such instrument will, typically, include a power shaft and a test chamber. The disclosed method constitutes the step of using a torque transducer to reiteratively compare the reactive torques imparted to a power shaft through the use of sequences of rheologic references.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: February 13, 1990
    Assignee: Haake-Fisons Instruments, Inc.
    Inventors: Daniel November, William E. Langley, Harry Darnopuk, George V. Hectus