Patents Assigned to Kabushiki Kaisha Youei Seisakusho
  • Water heater
    Patent number: 4444156
    Abstract: A water heater of the combustion type having a collecting assembly for collecting the drain water resulting from combustion to prevent corrosion of components of the heater by the drain water.
    Type: Grant
    Filed: December 9, 1982
    Date of Patent: April 24, 1984
    Assignee: Kabushiki Kaisha Youei Seisakusho
    Inventors: Yasutaka Iwasaki, Mitsuru Tanaka, Akihiko Yasuda, Munetaka Kinugasa, Toshihiko Kikuchi, Masao Maruyama