Patents by Inventor Paul F. Jahn

Paul F. Jahn 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).

  • Patent number: 4518736
    Abstract: A paint is formulated by combining fine boron nitride powder with a polymeric dispersion and a volatile liquid carrier, which paint is coated on ceramic preforms and subjected to hot pressing. The paint eliminates the formation of undesirable carbides on the surface of the pressed ceramic.
    Type: Grant
    Filed: April 6, 1984
    Date of Patent: May 21, 1985
    Assignee: Advanced Ceramic Systems, Inc.
    Inventor: Paul F. Jahn
  • Patent number: 3977294
    Abstract: A composite laminate material is described comprising a plurality of layers of graphite sheet material coated on at least one side thereof with a ceramic material having a density greater than about 50% of its theoretical density, preferably, up to about 95% or greater theoretical density. The ceramic material constitutes at least 90% of the thickness of the composite laminate. The composite laminate is formed by applying to one or both sides of graphite sheet material a ceramic layer compacted to at least 50% theoretical density. A plurality of layers of the ceramic coated graphite sheets are then stacked and pressure molded by conventional techniques with the various layers being adhered together using a suitable adhesive. The resulting laminate is light weight and thin but has sufficient strength to be used as armor material to protect against projectiles. The laminate material is easily shaped and cut and because of its light weight is especially useful for making body armor.
    Type: Grant
    Filed: September 7, 1971
    Date of Patent: August 31, 1976
    Assignee: Fiber Materials, Inc.
    Inventor: Paul F. Jahn