A device for controlling the stroemungsmenge of a gas, in particular in the case of gas lighters, with a consists of plastically deformable material flakes with a through flow channel and a process for the preparation of the lamina

摘要

890,485. Regulating fluid flow; valves. SOC. D'ETUDES ET DE RECHERCHES TECHNIQUES. Oct. 14, 1959 [Oct. 14, 1958; May 4, 1959], No. 34857/59. Class 135. [Also in Group XI] A flow regulator suitable for controlling the flow of gas from a reservoir of liquefied gas to a burner of a gas lighter (see Group XI) consists of an element 1, Fig. 1, of elastically deformable material such as P.T.F.E. formed with a passageway 2 and subject to an adjustable axial pressure applied by a hollow screw 7 to an annular zone surrounding the passageway whereby the passageway is contracted laterally and lengthened to provide the desired rate of flow. The hollow screw 7 and a member 3 with which it coacts may be made of brass or of nylon or the screw 7 may be of brass and the member 3 of nylon. When both parts are of nylon, which may have insufficient strength for adequate compression of the element 1, the latter may be precompressed. In a modification, the hollow screw 7b, Fig. 4, carries a washer 16a for compression of the element 1 and is bevelled at 17a to spread the material at the periphery of the element 1 outwardly and upwardly to seal with the housing 4b. The outlet at the upper end of the hollow screw 7b is controlled by a spring-loaded valve member 18 with a sealing ring 20 and a stem 19 for operation by a part 25 of the lighter mechanism. A sealing sleeve 39 prevents leakage of gas which passes to a passage 26 leading to the burner. The valve member 18 may alternatively consist of a disc of sealing material actuated by a. separate stem. In a further modification, the valve member 18 coacts with a seat on the upper side of the washer 16a and is opened by lifting the stem.