Abstract: Disclosed is a cap for a drink container which permits drinking of the drink contained therein without removing the cap. The cap comprises a cover plate which is to cover the upper opening of the drink container and a peripheral wall of the cover plate which is to be fitted to the upper opening edge of the drink container. The cover plate is disposed diagonally in the peripheral wall and has a liquid port at a low position. A plugging member for closing the liquid port is pivotally supported on the upper surface of the cover plate substantially at the center thereof. The peripheral wall has a notch in which the plugging member is to be retracted when the liquid port is closed thereby. The plugging member is locked onto the cover plate when the liquid port is closed by the plugging member, whereas the plugging member is locked onto the peripheral wall when the liquid port is let open.

Abstract: A plug device for a liquid container is presented to enable cleaning of a flow passage of the liquid container as well as to eliminate the liquid being left in the flow passage during the operation of the liquid container, thus providing hygienic and safe operation of the container. The plug device consists of an outer plug member and an inner plug member which is detachably attached to the outer plug member. When the members are assembled, a flow passage is formed automatically to enable access to the liquid stored in the container. When a press button provided on the inner plug member is pressed down, the opening disposed at the bottom of a plunger device remains open, resulting in the interior space of the container being connected with the flow passage via the internal liquid passage. In this condition, the container can be tilted to dispense the liquid from the container.

Abstract: A plug body having an inner cylindrical member with short engagement receivers and long engagement receivers together with steps, an operating button with short engaging elements and long engaging elements that are respectively received by the short engagement receivers and long engagement receivers, a rotatable slider provided with protrusions, a valve body with a valve stem which is inserted into the rotatable slider and the inner cylindrical member, a spring that preloads the rotatable slider upwards so that the long and short engaging elements of the operating button alternatively make contact with the protrusions, causing the rotatable slider to rotate with a depression of the operating button. The liquid passage is opened when the long engaging elements of the operating button make contact with the protrusions of the rotatable slider. In this case, the operating button protrudes upward above the upper lid of the liquid container.

Abstract: An electronic flash apparatus provided with a main flash apparatus having a first flash discharge tube and a sub-flash apparatus having a second flash discharge tube. The sub-flash apparatus is attached to the top of the main flash apparatus so that it may be rotated in horizontal and vertical directions.

Abstract: A DC arc welding apparatus using a high-frequency pulse current is disclosed and includes a rectifier bridge for commutating AC voltage and for applying DC voltage having a substantially smooth waveform to a circuit including an electrode and a workpiece for welding. A first switch is connected between an arc load formed between the electrode and the workpiece and a positive output side of the rectifier bridge. A second switch is connected between the arc load and a negative output side of the rectifier bridge. A capacitor has one end connected to a contact of the rectifier bridge and the first switch and another end connected to a contact of the rectifier bridge and the second switch.