Abstract: A tornado fan for cooling a room may include a stand member to support the tornado fan, a motor member to connect to the stand member and to rotate a fan blade of the tornado fan, and a cage member to enclose the motor member and fan blade. The fan blade may be substantially planar and includes a semi circle cross-section, and the stand member may include a platform to connect to the motor member. The motor member may include a platform to connect to the platform of the stand member, and the cage member may include a platform to connect to the platform of the motor member and the platform of the stand member. The motor member may include a stopper platform to connect to the fan blade, and the motor member may include a traverse pin to cooperate with the stopper platform.

Abstract: A tornado fan for cooling a room may include a stand member to support the tornado fan, a motor member to connect to the stand member and to rotate a fan blade of the tornado fan, and a cage member to enclose the motor member and fan blade. The fan blade may be substantially planar and includes a semi circle cross-section, and the stand member may include a platform to connect to the motor member. The motor member may include a platform to connect to the platform of the stand member, and the cage member may include a platform to connect to the platform of the motor member and the platform of the stand member. The motor member may include a stopper platform to connect to the fan blade, and the motor member may include a traverse pin to cooperate with the stopper platform.

Abstract: An airborne fire extinguisher system comprising a twin-rotor aircraft and a means for discharging a fire suppressant over a fire front in a target area. The means for discharging the fire suppressant comprises a retractable hose to carry the fire suppressant exiting from the container and a nozzle assembly attached to the free end of the retractable hose. A telescopic arm means achieves swinging of the retractable hose to obtain desired vertical reach and angular coverage over the fire front is coupled to the retractable hose. A nozzle assembly receiving the telescopic arm and the retractable hose at its one end amplifies the pressure of the fire suppressant before finally exiting through a hemispherical nozzle and fixed at the other end of the nozzle assembly.

Abstract: A firefighting system for use on a firefighting truck includes a telescoping support frame, a telescoping arm connected to the telescoping support frame, a water pipe extension to extend the telescoping arm, and a spinning nozzle positioned at an end of the water pipe extension.