Quartz Type Patents (Class D23/340)
  • Low noise fan heater
    Patent number: 7326883
    Abstract: A housing and a base formed integrally with the housing or attached thereto. An array of louvres is attached to or formed integrally with the housing. An electric motor-driven fan is located within the housing and blows air toward the louvres. An electric heating element is situated within the housing between the fan and the array of louvres. This avoids subjecting the fan to excessive heat of the heating element and reduces turbulence of airflow past the louvres, thereby reducing operational noise levels.
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: February 5, 2008
    Assignee: Chung Mei Industries Limited
    Inventor: Carlo Bertani
  • Tower heater
    Patent number: D533649
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: December 12, 2006
    Assignee: Deca IP, LLC
    Inventors: Ken Maitland, Robert Yeargin, Steve Manning
  • Space heater and humidifier
    Patent number: D499475
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: December 7, 2004
    Assignee: The W. B. Marvin Manufacturing Co.
    Inventors: Joseph M. Lehman, Sherry L. Jones, Michael J. Painter, Patrick R. Walker
  • Radiant heater
    Patent number: D329692
    Type: Grant
    Filed: December 19, 1991
    Date of Patent: September 22, 1992
    Assignee: The W. B. Marvin Manufacturing Company
    Inventors: David B. Chaney, Barry W. Smith
  • Quartz fin heat retaining tube
    Patent number: D428858
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: August 1, 2000
    Assignee: Tokyo Electron Limited
    Inventor: Katsutoshi Ishii