Patents Assigned to Ryowa Engineering Company, Limited
  • Soldering device for radiator tanks
    Patent number: 4504223
    Abstract: A soldering device for radiator tanks comprises a large number of burner nozzles disposed along the entire width of and directed to the soldering area. Cooling pipes are provided on burner tables which can be adjusted so that the radiator can be inserted inside the gap formed therebetween. A control means shifts the times for starting and shutting off the supplying of an oxygen-containing gas from the burner ignition and fire extinction times.
    Type: Grant
    Filed: August 18, 1983
    Date of Patent: March 12, 1985
    Assignee: Ryowa Engineering Company, Limited
    Inventors: Kazuo Yamada, Hiroshi Sakaki