Abstract: A mechanism wherein an air cylinder plunger which can move within the air cylinder is provided within a manually-operated sprayer. The air cylinder plunger compresses the space within the air cylinder in accordance with the spraying operation of sprayer pump of a manually-controlled sprayer and discharges the air into the liquid to be sent to the nozzle hole. The external air is sucked into the air cylinder through the nozzle in accordance with the liquid sucking operation of the sprayer pump.

Abstract: A manual type miniature atomizer having a container for liquid to be atomized, and further having mounting means, a main cylindrical member, a hollow tubular member, a spring, an atomizing head, and an outer cylindrical member. The mounting means is detachably engaged with the neck of the container. The main cylindrical member depends from the flange of the mounting means into the container. The hollow tubular member is elevationally movably engaged at the lower end within the small-diameter portion of the hollow tubular member. The spring urges upwardly the tubular member. When the atomizing head is manually depressed in operation, the interior space in the small-diameter cylinder is reduced and hence the interiors of both the small-diameter and the large-diameter cylinders are simultaneously pressurized.

Abstract: A trigger-actuated atomizer pump has a first engagement member held in fitting engagement with a second engagement member on a flattened liquid container for orienting the atomizer pump securely against rotation relative to the flattened liquid container with an atomizer trigger directed in registration with the plane in which the container is flattened. The first engagement member may include a lateral projection extending remotely from the atomizer trigger so that an operator's hand can be held at the back of the thenar against the lateral projection to facilitate gripping the atomizer for fatigue-free operation in a long period of time.

Abstract: An accumulator type, rechargeable atomizing mechanism having a container for liquid to be atomized, an atomizer body, and atomizer head and an engaging member having a large-diameter hollow cylindrical portion. The atomizer head cooperates with skirt-like small and large diameter pistons formed on a piston member. The large-diameter cylindrical portion of the engaging member is held within the peripheral wall of the atomizer head and is formed with a rod portion extending downwardly from the large-diameter cylindrical portion. The atomizer body is formed with a lower, small-diameter cylindrical portion. The large-diameter piston is held by the large-diameter cylindrical portion of the engaging member and the small-diameter piston is held by the small-diameter portion of the atomizer body. A longitudinal recess is formed on an upper, large-diameter cylindrical guide portion of the atomizer body, and a hole is perforated at the junction between the upper and lower cylindrical portions of the atomizer body.

Abstract: In order to effect the opening and closing operations of a control valve leading to a nozzle, an actuating chamber is defined by a piston and a cylinder and is made to have communication with the pressurizing chamber of the pressurizing means of an atomizer. In order to regulate the movement of the piston, the actuating chamber has its lower portion formed with a stopper for preventing the substantial volume of the pressurizing chamber from being abruptly increased. The stopper has its lower portion formed with a depending cylinder for guiding the downward movement of the aforementioned piston.

Abstract: An accumulator type, rechargeable atomizing spray mechanism having a container for liquid to be atomized, and further having an atomizer body, an atomizer head and an engaging member having a large-diameter hollow cylindrical portion. The atomizer has small and large diameter pistons formed into a piston member. The large diameter hollow cylindrical portion of an engaging member is surrounded by the peripheral wall of the atomizer head and has a rod portion extending downwards from its upper inside portion. Both pistons are respectively inserted into upper large diameter and lower small diameter cylindrical portions of the engaging member and atomizer body. The engaging member has a nozzle opening perforated at its large diameter cylindrical portion, which is normally closed by the large diameter piston of the piston member. A suction valve perforated at the bottom of the lower cylindrical portion of the atomizer body is closable by means of the rod-like valve body of the engaging member.

Abstract: An accumulator type, rechargeable atomizing spray mechanism having a container for the liquid to be atomized, and further having an atomizer body, an atomizer head, an engaging and piston member having a large-diameter rod portion. The atomizer head is arranged to cooperate with skirt-like small-diameter, intermediate-diameter and large-diameter pistons formed at a piston member. The large-diameter rod portion of the engaging and piston member forms an exhaust valve with the conical valve body projected at the top thereof and with the exhaust valve hole of the large-diameter cylinder of the atomizer head, and the small-diameter rod-like valve body of the engaging and piston member forms a suction valve with the suction valve hole and a ball valve at the lower portion of the atomizer body.All the pistons are respectively telescopically inserted into the large-diameter cylinder, the cylindrical guide portion and the small-diameter cylindrical portion of the atomizer body.