Patents by Inventor Lucas Benjamins, Jr.

Lucas Benjamins, 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).

  • Apparatus for the monitoring of filters
    Patent number: 3990972
    Abstract: An apparatus for monitoring the thickness of filter cake on a filter by using the difference in pressure between the inside of the filter apparatus and the inside of a hollow body spaced from a filter element to provide a signal of measurement.
    Type: Grant
    Filed: October 15, 1974
    Date of Patent: November 9, 1976
    Assignee: Ametek, Inc.
    Inventor: Lucas Benjamins, Jr.