Patent ID: 6613112
Filing Date: 2003-09-02
Classification: F17C

Abstract:
A rechargeable LP gas storing cylinder for a portable gas burner, which is attached to the portable gas burner when it is used and has a top portion to which a gas take-out nozzle (3) is attached so as to be able to advance and retreat, the gas take-out nozzle (3) constituting part of a gas shut-off valve, whereinthe top portion of the LP gas storing cylinder (1) is fixed to a valve block (2) provided with a through hole (4) for attaching a gas take-out nozzle (3), the nozzle attaching through hole (4) having a halfway portion provided with a valve chamber (5), the gas take-out nozzle (3) being attached to the through hole 4 as urged with an urging spring (6) for valve closing in a direction where it advances, a gas take-out passage (7) being formed within the gas take-out nozzle (3) so as not to pass through the nozzle (3), the nozzle attaching through hole (4) communicating with the gas take-out passage (7) by a window hole (8) provided through a wall of the gas take-out nozzle (3), a sealing ring (10) being fitted into a portion where the window hole (8) is formed, the sealing ring (10) being brought into contact with a front end wall surface of the valve chamber (5) to shut off a communication between an interior area of the gas storing cylinder (1) and the gas take-out passage (7) when the gas take-out nozzle (3) has advanced and being brought into contact with an inner end wall surface of the valve chamber (5) to thereby communicate the interior area of the LP gas storing cylinder (1) with the gas take-out passage (7) when the gas take-out nozzle (3) has retreated, a guide pipe (12) to communicate the interior area of the cylinder with the valve chamber (5) projecting from an inner end wall of the valve block (2) into the interior area of the LP gas storing cylinder (1).