| 摘要 |
Apparatus attachable to a pressurised container of a pressure-liquefiable gas, for supplying vapour substantially free of liquid irrespective of the attitude of the apparatus and container, comprises a chamber (24) with an entry passageway (30) incorporating a non-return valve (29) and an exit conduit (31) extending from an opening (311) in the vicinity of the centre of volume of the chamber (24). The apparatus may also incorporate a pressure-regulating mechanism (35) in the form of a poppet valve (36) controlling the vapour outlet (42) and urged by a spring (37) against a valve seat (38), and a control piston (39) urged by a further spring (40) against the poppet to open the valve, the pressure of further spring (40) being controlled via a plunger (41) and hand-squeeze lever (43). <IMAGE> |
