Patents by Inventor Burkhard Flamme

Burkhard Flamme 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).

  • Agent for sealing metallic ground coats, especially ground coats consisting of zinc or zinc alloys
    Patent number: 6478886
    Abstract: Agent for sealing metallic substrates, in particular zinc or zinc alloy substrates, characterized in that it consists of an aqueous dispersion of a) at least one silane derivative and b) a colloidal silica and/or colloidal silicate. This agent may be used for a direct coating of metallic substrates without chromatation.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: November 12, 2002
    Assignee: Kunz GmbH
    Inventors: Volker Kunz, Hermann Donsbach, Burkhard Flamme
  • Dip-coating method for protecting chromatized or passivated zinc coatings on steel or the like
    Patent number: 5393611
    Abstract: Chromated or passivated (phosphated) zinc and zinc alloy coatings on workpieces are provided with a protective coating which is largely inorganic and formed from titanium or zirconium chelate and/or titanium or zirconium acid ester and an organofunctional polysiloxane applied in solution form by a post-treatment dipping.
    Type: Grant
    Filed: March 4, 1994
    Date of Patent: February 28, 1995
    Assignee: Ewald Dorken AG
    Inventor: Burkhard Flamme
  • Dip-coating method for protecting chromatized or passivated zinc coatings on steel or the like
    Patent number: 5324545
    Abstract: Chromated or passivated (phosphated) zinc and zinc alloy coatings on workpieces are provided with a protective coating which is largely inorganic and formed from titanium or zirconium chelate and/or titanium or zirconium acid ester and an organofunctional polysiloxane applied in solution form by a post-treatment dipping.
    Type: Grant
    Filed: November 19, 1992
    Date of Patent: June 28, 1994
    Assignee: Ewald Dorken AG
    Inventor: Burkhard Flamme
  • Drawable corrosion inhibiting coating
    Patent number: 5166251
    Abstract: A corrosive resistant coating with deep drawability characteristics which is applied to a metal substrate as a wet film and then heated to dry and initiate curing to provide a protective coating tenaciously bonded to the substrate. The composition has a corrosion inhibiting powder metal, a drawing agent of polytetrafluorethylene (PTFE), a primary bonding resin, and a vehicle of solvents. Preferably, the coating composition also has a secondary organic resin and thixotropic, metal suspension and hydroscopic agents. The cured coating composition on a metal substrate, in most instances, eliminates the needs for additional die drawing compounds when deep cold drawing the coated metal substrate.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: November 24, 1992
    Assignee: Depor Industries, Inc.
    Inventors: L. Donald Barrett, Burkhard Flamme, Dale R. Hahn, Peter E. Pelloski