Patents by Inventor David K. Black

David K. Black 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).

  • Publication number: 20180066146
    Abstract: A one-part, storage-stable, air-dryable, latex-coatable waterborne film-forming coating composition has dispersed therein sufficient conductive material to provide an autoweldable hardened shop primer layer when applied to metal components. The thus-primed components may be welded together using automated arc welding equipment without having to remove the coating composition at the weld site. The conductive material desirably causes little or no airborne emission of unsafe quantities of heavy metals or other harmful substances when the primer is volatilized or combusted during welding.
    Type: Application
    Filed: October 27, 2017
    Publication date: March 8, 2018
    Applicant: Valspar Sourcing, Inc.
    Inventors: James A. Prevost, Channing Beaudry, Donald Boespflug, David J. Fouquette, David K. Black
  • Patent number: 5516549
    Abstract: A polyester-based coating composition capable of forming a striated pattern on a metal surface at a film thickness less than half of that of PVC plastisol films is provided by a thixotropic composition having a thix index of from about 1.5 to about 3 and comprising a hydroxy-functional polyester, a thixotropy-inducing rheologic agent and curing agent. The striated coating is applied to sheet metal in a coil coating operation by introducing the composition into a paint pan of a coil coater, transferring said composition from said paint pan to an applicator roll by rotating a pick-up roll in contact with the composition and with said applicator roll; continuously withdrawing a sheet of metal from a coil thereof and coating said sheet by contacting it with the applicator roll; curing the coating on said sheet by passing the sheet through an oven at an elevated temperature; and continuously rewinding said sheet into a coil.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: May 14, 1996
    Assignee: Morton International, Inc.
    Inventors: Kenneth E. Jasenof, Ronald J. Lewarchik, Douglas A. Stumpfl, David K. Black
  • Patent number: 4356870
    Abstract: A water spray system applied directly to cooking units in a kitchen rather than to the ventilating duct for the cooking units. The system may be a wet system with water pressure maintained at spray nozzles which open in case of fire, or an open head, or dry, system controlled by thermostats and a solenoid water valve. Safeguards are provided against loss of water pressure, surges in the water supply line, flare ups after partial cooling of the thermostats, closing of a solenoid gas valve supplying gas burners in the cooking units as a result of momentary outages in the electric service supplying the control circuits, and other contingencies.
    Type: Grant
    Filed: November 18, 1980
    Date of Patent: November 2, 1982
    Assignee: Gaylord Industries, Inc.
    Inventors: Edson C. Gaylord, David K. Black, Russell L. Anderson, Philip O. Morton