Patents Assigned to Iron Work Nishimura Co., Ltd.
  • Automatic fire extinguishing system
    Patent number: 4741403
    Abstract: An improved fire extinguishing system is proposed which uses both water and a fire extinguisher chemical. When a fire alarm senses an abnormally high temperature, a fire extinguisher will be sprinkled first. Only if this fails to extinguish the fire, water will be sprinkled from the water nozzle. This prevents damage of overdischarge of water. There is no fear of water spreading a fire caused by a flammable liquid.
    Type: Grant
    Filed: August 8, 1986
    Date of Patent: May 3, 1988
    Assignee: Iron Work Nishimura Co., Ltd.
    Inventor: Yoshitaka Nishimura