Patents by Inventor J. Calvin Birdsall

J. Calvin Birdsall 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).

  • Method and apparatus for galvanizing articles
    Patent number: 4386122
    Abstract: An improved galvanizing system is provided having a centrifuge assembly wherein an elongate member positively couples a motor means to a container holding articles to be spun. This positive engagement results in more rapid rotational acceleration and deceleration. A dumping means is provided to automatically remove articles from the container. Further, an automated ejection means is provided for removing the empty container from the centrifuge assembly.
    Type: Grant
    Filed: September 14, 1981
    Date of Patent: May 31, 1983
    Inventor: J. Calvin Birdsall