Patents by Inventor Marvin L. Castor

Marvin L. Castor 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).

  • Can end tab sensing apparatus
    Patent number: 4932823
    Abstract: A press regulating device for detecting can end tab related defects including a plunger assembly for engaging a can end to be tested; a plunger deflection monitoring device; and a data processing device which receives a signal from the plunger deflection monitoring device and a press timing device and which processes these signals to determine whether or not the tested can end is defective and which sends a control signal to the press to terminate press operation upon detection of a defective can end.
    Type: Grant
    Filed: July 14, 1988
    Date of Patent: June 12, 1990
    Assignee: Adolph Coors Company
    Inventors: Marvin L. Castor, Craig L. Bartels, David R. Miller