Abstract: A valve used for an inflatable article includes a valve body and a male connector. The valve body has a rear hollow portion, a female connector attached to the rear hollow portion, and a spring-loaded valve core movable therein. The male connector has a first tubular end and a second tubular end, and the second tubular end is dimensioned to be snugly plugged in the female connector to move the spring-loaded valve core backward. Furthermore, the female connector of the valve body defines a pair of L-shaped slots, while the male connector is formed with a pair of bayonet fittings adapted to be held in the L-shaped slots after the second tubular end is plugged, thereby allowing the male connector to be fastened to the female connector and hence to the valve body in a quick-detachable manner.

Abstract: A valve used for an inflatable article includes a valve body and a male connector. The valve body has a rear hollow portion, a female connector attached to the rear hollow portion, and a spring-loaded valve core movable therein. The male connector has a first tubular end and a second tubular end, and the second tubular end is dimensioned to be snugly plugged in the female connector to move the spring-loaded valve core backward. Furthermore, the female connector of the valve body defines a pair of L-shaped slots, while the male connector is formed with a pair of bayonet fittings adapted to be held in the L-shaped slots after the second tubular end is plugged, thereby allowing the male connector to be fastened to the female connector and hence to the valve body in a quick-detachable manner.

Abstract: A machining program of a machine includes a number of machining modes, and a number of other or different machining modes, to be selected by users and to be conducted by the machine to work on work pieces at any time without stopping the machine. The machining modes may be shown in a screen and to be easily selected by the users, and may be the multi-slot or single slot modes, or the surface modes, and may be pre-programmed, for allowing the users to easily select and change to conduct the required machining modes without writing further programs while working the work pieces.

Abstract: An air pump having a housing with a blower therein and an outlet and a control box. The control box has two conduits respectively and oppositely defined in a side face of the box, and two magnetic valves movably received in the control box and each corresponding to one of the conduits so as to selectively seal the conduits. The magnetic valve comprises a coil with a hole defined in a side face of the coil, a plug which has one free end movably received in the hole, a spring compressibly mounted between the side face of the coil and the plug and a pad securely attached to the other free end of the plug to selectively seal the conduit.

Abstract: An air pump having a housing with a blower therein and an outlet and a control box. The control box has two conduits respectively and oppositely defined in a side face of the box, and two magnetic valves movably received in the control box and each corresponding to one of the conduits so as to selectively seal the conduits. The magnetic valve comprises a coil with a hole defined in a side face of the coil, a plug which has one free end movably received in the hole, a spring compressibly mounted between the side face of the coil and the plug and a pad securely attached to the other free end of the plug to selectively seal the conduit.

Abstract: A multi-operation discharge control device is provided, the device includes a lower housing having a water inlet and outlet, a valve set slidably and axially disposed in the upper portion of the lower housing, a manual operation system slidably and transversely disposed into a lateral extension opposite to the water inlet of the lower housing, an upper housing axially connected to the lower housing including an automatic operation system therein. The automatic operation system contains an electromagnetic valve and an IC plate. Thereby the valve set is selectively actuated manually or automatically to move upward to define a water passage in the lower housing permitting the water to flow from the water inlet to the water outlet of the housing.

Abstract: Methods are disclosed for inhibiting the infectivity of HIV-1 in human cells. The methods comprise contacting human cells infected with HIV-1, with certain quinolinyl and acridinyl derivatives, including amodiaquin, chloroquine, hydroxychloroquine, primoquine, quinacrine and compounds having the formula: ##STR1## wherein R.sup.1 and R.sup.2 are each hydrogen, or join to form a cyclic structure of the formula: ##STR2## and R.sup.3 and R.sup.4, same or different, are hydrogen, C.sub.1 -C.sub.8 lower alkyl or hydroxy substituted C.sub.1 -C.sub.8 lower alkyl, and the pharmaceutically acceptable salts thereof.

Abstract: A grinding machine includes a working table slidably engaged on the base, an opening is formed in the base, a belt is extended through the opening, a rotating wheel is coupled to the belt for driving the belt, another belt is extended between the working table and the base and includes two ends in which one is fixed to the working table and the other is fixed to a block, a bolt is engaged with the working and one of the blocks for moving the blocks toward each other or away from each other so as to adjust the tension of the belt. The belts are shielded by the working table and will not be splashed by cooling oil used in the grinding machine.