Abstract: The present invention relates generally to a cap for a gas vessel that has a separable gas exhaust unit. The gas exhaust unit may be integrally formed in the upper surface of the vessel cap so as to be separably attached by ribs. The gas exhaust unit may also be formed to be coupled to a mounting cup while pressing a valve stem of the gas vessel. The cap for a gas vessel having a separable gas exhaust unit may also include one or more gas injection adaptors integrally formed in the edge of the vessel cap so as to be separated by ribs. According to the present invention, the gas exhaust unit can be separated from the cap or a mounting cup of the vessel for its use when necessary.

Abstract: There is provided a safety valve to release excess pressure from a portable gas container for the prevention of an explosion, wherein, when the internal pressure of a portable butane gas container increases over certain level, the safety valve instantaneously operates to release the excess pressure gas from the container at once through an excess pressure gas outlet, thereby sufficiently lowering the pressure inside the container to prevent the container from exploding.

Abstract: There is provided a safety valve to release excess pressure from a portable gas container for the prevention of an explosion, wherein, when the internal pressure of a portable butane gas container increases over certain level, the safety valve instantaneously operates to release the excess pressure gas from the container at once through an excess pressure gas outlet, thereby sufficiently lowering the pressure inside the container to prevent the container from exploding The safety valve comprises: a safety valve housing with first and second diameter portions integrally formed in a cylindrical shape, the first and second diameter portions being different from each other in diameter; a shaft with a body, a top projection formed on a top of the body, a gas outflow portion and a gasket locking portion formed at a lower part of the body, the shaft positioned inside the safety valve housing; a stopper with a lower part being open, an upper part being closed except for a center where a through-hole is vertically for

Abstract: A spout cap having a two steps type straw part comprises a coupling part fixedly coupling with the pouring hole of the metal container; a first straw part extending at a predetermined length on the interior face of the coupling part; a cap coupling part having a pouring outlet through which contents in the metal container flow out, wherein the cap coupling part is selectively positioned in an overlapped disposition or an unfolded disposition with respect to the first straw part; an extension part between the first straw part and the cap coupling part, wherein the extension part is capable of extending the unfolded length when the cap coupling part is unfolded with respect to the first straw part; a second straw part extended from the upper inner face of the extension member at a predetermined length and coupled with the lower end of the cap coupling part.