Patents by Inventor Brian L. Rockafellow

Brian L. Rockafellow 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 forming heat seals with films
    Patent number: 6342123
    Abstract: An apparatus (10) and method for forming differentially frangible seals (FS) in a final closed pouch (FCP) are described. The method involves differential cooling a seal portions of pouch forming dies (15, 15A) with a fluid directed at or in a portion of the die. The method is useful for forming pouches with dual chambers separated by a frangible seal and surrounded by a hard seal, one chamber for a liquid (L) and the other chamber for another material (M). Single pouches are also described.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: January 29, 2002
    Inventors: Blake M. Rees, Brian L. Rockafellow