Patents by Inventor Stephen U. Davis

Stephen U. Davis 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).

  • Plasma gun including external adjustable powder feed conduit and infrared radiation reflector
    Patent number: 3935418
    Abstract: A plasma spray gun having an arc space within the gun housing for heating and ionizing an inert gas propelled therethrough includes an external, adjustable powder feed conduit so that the powder may be applied to the flame of the gun after it has left the gun nozzle. The plasma gun also utilizes a concave reflector attached to the gun to reflect the infrared radiation and direct it to a limited area on the substrate where most of radiant heat is absorbed.
    Type: Grant
    Filed: April 17, 1974
    Date of Patent: January 27, 1976
    Assignee: Sealectro Corporation
    Inventors: Mille Stand, Stephen U. Davis