Full Title

Operating means; Releasing devices > actuated by fluid ( ; fluid-actuated check valves F16K15/00; fluid-actuated safety valves F16K17/00) > in which fluid from the circuit is constantly supplied to the fluid motor > in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side (F16K31/40 takes precedence) > the fluid acting on a diaphragm