Patents by Inventor James Allen Fink

James Allen Fink 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).

  • Liquid colorant tube assembly
    Patent number: 6254363
    Abstract: A liquid colorant system for a plastic molding machine includes a plurality of interconnected tube structures, a tank containing the liquid colorant, and a peristaltic pump. The pump drives a flow of the liquid colorant from the tank to a valve through a delivery tube and a peristaltic tube. During ordinary operation, the valve allows the liquid colorant to flow into the molding machine through a feed tube. However, the valve can be shifted to allow air to be purged through a purge tube, bypassing the feed tube and the machine.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: July 3, 2001
    Assignee: M. A. HannaColor, a division of M. A. Hanna Company
    Inventor: James Allen Fink