Abstract: A cylinder extends into a container containing fluid to be dispensed and includes a pressure accumulating valve at the internal end. A piston sliding in the cylinder includes an air suction valve at the internal end and a pressure chamber is formed between the piston and the cylinder. An elastic piece is axially flexible and is attached to the bottom of the piston. The air suction valve has an axially flexible valve body. A stem fixed at one end to the bottom of the elastic piece is extended into the piston at the other end, and has a pushing part at the other end to release the air suction valve from the valve seat by contacting the valve body when the elastic piece is moved toward the air suction valve.

Abstract: A push-button type sprayer comprises a movable push button which is attached to a container containing a liquid to be sprayed. A stopper is formed integrally with the push button to extend along the moving direction of the push button. Formed in the outer peripheral surface of the container is a recess which contains the stopper and has a shoulder portion on which the stopper abuts.

Abstract: An injection molding machine comprises an injection mechanism for heating and melting molding material and for injecting the molten material into cavities defined by a fixed die and a movable die and a die clamping mechanism for clamping and separating the fixed die and movable die. The fixed die is attached to a fixed platen provided near the injection mechanism and the movable die is attached to a movable platen provided near the die clamping mechanism. The die clamping mechanism is movable in a horizontal direction. A slider is provided on said movable platen and can reciprocably slide in a horizontal direction different from the direction in which the die clamping mechanism moves, and the aforesaid movable die and another movable die are attached to the slider so as to alternately come into face-to-face relation with the fixed die as the slider reciprocates.

Abstract: A foam dispenser comprises a nozzle cap which in turn includes a bottom with which collides the spray liquid discharged from an orifice formed in a foam dispenser body. At the bottom of this nozzle cap is a plurality of arms constituting an obstacle wall with which the spray liquid from the orifice collides, and a plurality of foam outlet ports defined by adjacent arms. Therefore, scattered spray streams and freely flowing liquid streams are alternately formed adjacent to one another. Locking devices are provided to lock the nozzle cap onto the foam dispenser body to prevent it from falling off.

Abstract: A manually operated sprayer which comprises a pump mechanism including a secondary valve having a valve body normally pressed against a valve seat by a compression spring and valve-sealing means designed temporarily to obstruct the flow of a liquid even after the valve body slides in liquidtightness along the inner wall of a tubular piston and is released from the valve seat, and wherein the valve-sealing means of the secondary valve is integrally formed with the valve body, and slides in liquidtightness along the inner wall the tubular piston for a prescribed distance to be brought into an annular groove formed in the inner wall of the tubular piston, thereby taking the form of a skirt-like strip to be released from the liquidtight condition.

Abstract: A trigger type sprayer comprises a nozzle cover integrally formed with the nozzle and connected to the nozzle through an integral hinge. The nozzle cover includes a seal section for sealing the ejection hole of the nozzle. An engagement section is provided on the nozzle which snap-fits with a first lock section on the nozzle cover. A second lock section is provided in the nozzle cover which is snap-fittingly engageable with a hole in the upper surface of the sprayer body, whereby the nozzle cover is pivotable about the integral hinge and is lockable in either a nozzle-sealing position or a nozzle-opening position.

Abstract: A sprayer wherein there is formed in a sprayer body a pressurizing cylinder defining a pressurizing chamber communicating with a pressure accumulating chamber defined by a pressurizing cylinder in which a valve rod is slidably received. The pressurizing cylinder has a smaller diameter than the pressure accumulating cylinder. A piston is slidably inserted into the pressurizing cylinder. When liquid received in the pressurizing chamber is pressurized by bringing down the piston in the smaller diameter pressurizing cylinder, then a higher pressure than the pressing force of the piston is applied by Pascal's principle to the valve rod against the urging force of a pressure accumulating spring disposed behind the valve rod, because the valve rod has a larger diameter than the piston. When the high pressure is applied to the pressure accumulating spring, then a highly pressurized liquid can be sprayed, though the piston itself applies a relatively low pressing force.

Abstract: A trigger type sprayer which comprises a sprayer body whose inner lateral walls are provided with a pair of mutually facing engagement grooves, and wherein a trigger of the sprayer has a notch cut out in the upper end portion of the front wall and a pair of lugs formed on the outside of the upper end portions of the lateral walls. A nozzle fixed to the sprayer body extends outward through the notched portion of the trigger, and has a pair of axially extending stoppers integrally formed on the outer surface of the nozzle. The trigger can be rotatably connected to the sprayer body with ease due to the paired lugs being snap-fitted to the engagement grooves of the sprayer body and the upper end portions of the lateral walls of the trigger are prevented from being thrown inward by the stoppers of the nozzle and in consequence coming off the sprayer body.

Abstract: A depress button type sprayer comprises a piston slidably inserted into a cylinder and provided with a liquid jetting nozzle, a lever for moving the piston into the cylinder against the force of a spring and a depress button for operating the lever.