Patents by Inventor Francis M. Enzien

Francis M. Enzien 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).

  • Composite materials for structural end uses
    Patent number: 5357726
    Abstract: A flexible, reinforced textile composite material for constructing tensioned fabric structures, e.g. for sheltering from the outdoor environment, is disclosed. The material has a hydrophobic protective film element laminated to the textile composite material to provide enhanced hydrophobicity. In a preferred embodiment, of the invention, one or a mixture of colorants, dyestuffs or biological agents are incorporated into the hydrophobic protective film layer. The textile composite material has particular application as a tensioned architectural element for forming a dome, roof or the like, or as an electromagnetic window or a radome.
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: October 25, 1994
    Assignee: Chemfab Corporation
    Inventors: John A. Effenberger, Keith G. Koerber, Francis M. Enzien, Michael P. Cushman, Milton B. Punnett
  • Method of making laminated PTFE-containing composites and products thereof
    Patent number: 5141800
    Abstract: Dispersion polymerized PTFE itself, if provided in an unfused state, is sufficiently capable of acting as a pressure sensitive adhesive to facilitate the formation of an initial mechanical bond between components of a laminate such that it may be subsequently heat treated in a relatively short period of time to produce a well-bonded final laminate.
    Type: Grant
    Filed: June 25, 1991
    Date of Patent: August 25, 1992
    Assignee: Chemical Fabrics Corporation
    Inventors: John A. Effenberger, Francis M. Enzien, Frank M. Keese, Keith G. Koerber