Patents by Inventor Fred A. Pennington, Jr.

Fred A. Pennington, 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).

  • Pre-set automatically operable means for measuring the plasticity of test specimens including apparatus for indicating and recording the results thereof
    Patent number: 4241601
    Abstract: A pre-set and automatically operable means measures the plasticity of heated coal specimens or other material to be tested, and certain results thereof are indicated on visual read-out devices while other results are recorded in print-indicating instrumentalities, including signalling devices, are provided to keep the operator of the apparatus informed as to progress being made. A prime feature is the inclusion of several separate and closely adjacent specimen containers with the test specimen therein in heated condition, one of which may be in testing position while the other is in standby position with heated specimen intact and awaiting its turn to be moved into operating position.
    Type: Grant
    Filed: February 23, 1979
    Date of Patent: December 30, 1980
    Assignee: Andrew S. McCreath & Son, Inc.
    Inventors: Fred A. Pennington, Sr., Fred A. Pennington, Jr., John W. Porr, Jr.