首页>
外国专利>
VALVE FOR A CONTAINER CONTAINING A GAS UNDER PRESSURE, IN PARTICULAR A LIQUEFIED OIL GAS, CONICAL PRE-SEALING GASKET THEREFOR AND BOTTLE COMPRISING SUCH A VALVE
VALVE FOR A CONTAINER CONTAINING A GAS UNDER PRESSURE, IN PARTICULAR A LIQUEFIED OIL GAS, CONICAL PRE-SEALING GASKET THEREFOR AND BOTTLE COMPRISING SUCH A VALVE
展开▼
机译:包含气体的容器阀,尤其是液化石油气,圆锥形预密封容器的加压容器,以及装有这种阀的瓶
展开▼
页面导航
摘要
著录项
相似文献
摘要
The conical pre-sealing ring (30) is intended to provide temporary sealing while the appliance (20) is being screwed into or unscrewed from the valve (10) of a gas cylinder. Deep penetration of the push-element (21) of the appliance (20) can cause the conical pre-sealing ring (30) to reverse and remain in this position, even after unscrewing. According to the invention, to overcome this drawback, the conical pre-sealing ring (30) is provided with radial protuberances (33) which prevent gas-tight contact between the reversed surface of the conical pre-sealing ring (30) and the valve shoulder (16). This ensures that the space (40) always remains in communication with the gas pressure, so that, on dismantling, the sealing ring is returned to its initial position by a purely pneumatic effect.
展开▼