Patents by Inventor Tom M. van Velze

Tom M. van Velze 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).

  • Laminate of metal sheets and continuous filaments-reinforced thermoplastic synthetic material, as well as a process for the manufacture of such a laminate
    Patent number: 4992323
    Abstract: Fatigue resistant laminate which may be used at temperatures >120.degree. c., and more particularly in the construction of (air or space) vehicles. It comprises at least two metal plates interconnected by an intermediate layer of thermoplastic material reinforced by continuous filaments having a modulus of elasticity of at least 50 GPa, the laminate displaying, while externally unloaded, a compressive stress (of 0-200 MPa) in every metal plate and a tensile stress (of 0-500 MPa) in the continuous filaments. The filaments may consist of aramid, glass or carbon. The thermoplastic material may be an amorphous resin having a Tg>140.degree. C. such as, e.g., polyarylates, poly(ether)sulphones, polyetherimides, or poly-p-phenylene ethers, or a semi- or para-crystalline resin having a crystalline melting point>170.degree. C., such as poly-phenylene sulphides, polyetherketones or liquid crystal polymers.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: February 12, 1991
    Assignee: Akzo NV
    Inventors: Laurens B. Vogelesang, Leendert G. Meyers, Tom M. van Velze