Patents by Inventor Duane E. Barber

Duane E. Barber 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).

  • Denture curing apparatus and method
    Patent number: 5477054
    Abstract: An apparatus and method for curing light curable material using unfiltered light. A vented housing encloses a single lamp filament light source which emits visible light. The light source is positioned above and to the side of the light curable material which is supported on a rotating table during light curing. Light incident to the surface of the light curable material is at least about 50 milliwatts per square centimeter. The light curable material has a surface temperature of at least 150.degree. F. (65.6.degree. C.) after 2 minutes.
    Type: Grant
    Filed: March 25, 1994
    Date of Patent: December 19, 1995
    Assignee: Dentsply Research & Development Corp.
    Inventors: Louis H. Tateosian, Duane E. Barber
  • Denture curing apparatus and method
    Patent number: 5298758
    Abstract: An apparatus and method for curing light curable material using unfiltered light. A vented housing encloses a single lamp filament light source which emits visible light. The light source is positioned above and to the side of the light curable material which is supported on a rotating table during light curing. Light incident to the surface of the light curable material is at least about 50 milliwatts per square centimeter. The light curable material has a surface temperature of at least 150.degree. F. (65.6.degree. C.) after 2 minutes.
    Type: Grant
    Filed: December 7, 1992
    Date of Patent: March 29, 1994
    Assignee: Dentsply Research & Development Corp.
    Inventors: Louis H. Tateosian, Duane E. Barber
  • Curing oven for photopolymerization
    Patent number: D337583
    Type: Grant
    Filed: April 30, 1991
    Date of Patent: July 20, 1993
    Assignee: Dentsply Research & Development Corp.
    Inventors: Duane E. Barber, Eric A. Schneider, Edward A. Spector