Patents by Inventor Roger C. Mort

Roger C. Mort 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).

  • Film blowing apparatus
    Patent number: 5122329
    Abstract: A film blowing apparatus for the production of blown polymeric films includes a modified air ring which includes means for the continuous or periodic collection and removal of liquids from the proximity of the circular die which may condense, and further, optionally includes the further step of providing means, preferably a vacuum pump, for withdrawing and optionally collecting the condensed liquids from the surface of the modified air ring facing the blown film.
    Type: Grant
    Filed: March 22, 1991
    Date of Patent: June 16, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Roger C. Mort, Semyon Soyferman, Stephen J. Weibush, Richard F. O'Brien, Stephen D. Albert, Michael D. Schmal