Patents by Inventor John M. Rathfon, II

John M. Rathfon, II 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).

  • Patent number: 4473215
    Abstract: A control apparatus provides for automatic programmed sequencing of pressure bumps at precisely determined pressures in a molding press and optionally provides for full pressure or low pressure cure at the conclusion of the bumping operation. The control apparatus comprises a press pressure monitor that measures press clamp pressure and produces an output signal indicative of the measured press pressure, and a control circuit that compares the output signal with a program selected one of a number of reference signals respectively indicative of bump pressures at which a bump may be desired and directs the press to perform a bump upon a predetermined relationship between the output signal and reference signal, such being indicative of the attainment of the bump pressure indicated by the then selected reference signal. Upon completion of the bumping operation, either full or low pressure cure may be effected.
    Type: Grant
    Filed: January 12, 1982
    Date of Patent: September 25, 1984
    Assignee: Industrial Electronic Rubber Company
    Inventors: John M. Rathfon, II, Myles N. Murray