SPRINKLER Russian patent published in 2005 - IPC

FIELD: fire-fighting equipment, particularly for spraying water in controllable space during fire extinguishment.

SUBSTANCE: sprinkler comprises body with bails, deflector, sealing member for closing body orifice, rods of frangible material inserted between upper and lower supports and performing axial rotation around stop screw axis. Lower support has lever to which wire sensor is secured by the first end thereof. Wire sensor is formed of shape-memory metal and envelops rollers from their peripheries. Rollers are located on brackets of the deflector. Another sensor end passes around rollers and is secured to the deflector, wherein lower support having boss with groove formed on boss end is restricted from rotation by ball fixer formed on one bail and brought into contact with boss groove.

EFFECT: increased reliability and speed of sprinkler response.

2 dwg