Patents by Inventor Francis D. McLeod, Jr.

Francis D. McLeod, Jr. 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).

  • Out-of-round detector
    Patent number: 4368641
    Abstract: A container such as a glass bottle is inspected for out-of-round condition while being rotated and moved in line through a test area. A transmitter transducer directs a signal such as a 40 Khz acoustic wave to the outer surface of the bottle. The signal (such as the acoustic wave) reflected from the outer surface of the bottle is received by a receiver transducer. Changes in the phase difference between the transmitted and received signals are detected while the bottle is rotated. The difference between the maximum and minimum values of the changes in phase difference is compared to a threshold value to determine whether an out-of-round condition is tolerable. The bottle is ejected from the line if the difference signal exceeds the threshold value.
    Type: Grant
    Filed: January 30, 1981
    Date of Patent: January 18, 1983
    Assignee: Powers Manufacturing, Inc.
    Inventor: Francis D. McLeod, Jr.