Patents by Inventor Michael C. David

Michael C. David 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).

  • NANOPARTICLE FILLERS AND METHODS OF MIXING INTO ELASTOMERS
    Publication number: 20190389992
    Abstract: A nanoparticle includes a copolymer comprising a vinyl-aromatic monomer and a heterocyclic monomer. The copolymer is crosslinked with a multifunctional crosslinking agent polymerizable through an addition reaction. A nanoparticle and elastomer composition is disclosed. Several methods of mixing heterocyclic and non-heterocyclic monomer nanoparticles into an elastomer are also disclosed. These methods include mixing in a multi-elements static mixer and an intermeshing mixer with venting, among others.
    Type: Application
    Filed: September 9, 2019
    Publication date: December 26, 2019
    Inventors: William L. Hergenrother, Waruna C.B. Kiridena, James H. Pawlow, James D. Ulmer, Christopher G. Robertson, Michael C. David, Jeffrey D. Quinn
  • Air outlet with aperiodic oscillation
    Patent number: 5259815
    Abstract: A air outlet for a passenger compartment of a vehicle has a duct forming a jet of air, a pair of lateral sidewalls, bounded by the top and bottom walls diverging from each other from their upstream ends to their downstream ends at a rate sufficient to preclude a stable wall effect and for causing aperiodic oscillation of the jet into the passenger compartment of said vehicle. Various means are disclosed to further destabilize the wall effect.
    Type: Grant
    Filed: August 3, 1990
    Date of Patent: November 9, 1993
    Assignee: Bowles Fluidics Corporation
    Inventors: Ronald D. Stouffer, Michael C. David, David A. Bray