A dispenser has a plunger (3) operable in a pump body (4). The plunger can be locked up or locked down, and formations (88,89) of a pump plunger stem and pump body insert (6) for achieving this are described. Components of the dispenser, including a pump body cylinder/closure component (5), container neck and a pump body insert (6), are rotationally locked together with non-selective alignment and sealed by sliding-fit seals to prevent damage or leakage caused by relative turning of the components in transit.

A dispenser includes a body having a an exterior surface, an interior surface, a first chamber, a first opening in fluid communication with the first chamber and extending through the body, a second opening in fluid communication with the first chamber and extending through the body, a first valve and a second valve disposed on the body, the valves having a closed and an open configuration, and an actuator disposed at least partially within the first chamber. The actuator may be configured to increase and decrease pressure in the first chamber such that the first valve and the second valve change from their respective closed configurations to their respective open configurations and from their respective open configurations to their respective closed configurations. When in the closed configuration, flow through the valves is impeded.

A trigger-type liquid ejector which includes an ejector main body and a nozzle member in which an ejection hole is formed, the ejector main body including a vertical supply tubular pipe, an injection tubular portion, and a trigger mechanism, the nozzle member including a nozzle main body and a valve body, the nozzle main body including a valve seat portion having a valve seat plate, an inside of the valve seat plate communicating with the ejection hole, the nozzle main body including a tubular foam-forming portion positioned in a front of the ejection hole and configured to surround the ejection hole, and the foam-forming portion is provided with an outside air introduction hole penetrating through the foam-forming portion in a radial direction thereof.

A pump dispenser includes a housing, a piston structure, a spring, a trigger and a valve. The housing has a front cylinder part and a rear inverted-L-shaped grip part that are integrally formed, a nozzle base that is attached to the housing and that has a front nozzle part mounted thereon. The piston structure is configured of a hollow-shaped piston and a hollow-shaped piston shaft and that slides inside the cylinder part. The spring presses the piston structure upward. The trigger is positioned above the housing, has a front tip rotatably mounted on the housing, and has a mid part where a tip of the hollow-shaped piston shaft abuts. The valve rod is disposed at a center part of the cylinder part.

A trigger-type liquid dispenser includes valve member, which is provided in flow path to control liquid to flow in direction in flow path. Valve member includes intake-side check valve, which permits flow of liquid from container side to pump side and prevents flow of liquid from pump side to container side, and discharge-side check valve, which permits flow of liquid from pump side to nozzle side and prevents flow of liquid from nozzle side to pump side. Discharge-side check valve is formed in umbrella shape that is elastically deformable freely in radial direction and has outer circumferential end configured to contact inner circumferential surface of flow path, with contact force of outer circumferential end with respect to inner circumferential surface of flow path being distributed non-uniformly in circumferential direction.

A pressing mechanism for miscellaneous packs dispensing fluidic products comprising a capsular body in which a hollow actuator stem is slidably mounted to perform downward and upward movements with the outflow and backflow provided by a bellows with an elastic memory. An upper end of the bellows is coupled to a corresponding part of the actuator stem by a locking ring, and is also coupled to a button/nozzle, while the lower end of the bellows is supported on the capsular body. The actuator stem is slidably guided by an annular cap, below which the lower end of the actuator stem is coupled to a piston and a first check valve, which, together with a second check valve, allows the actuation of the actuator stem.

A multipurpose kettle for drinking water, spraying water and spraying mist comprises a kettle body and a kettle cover detachably connected to the upper end of the kettle body, wherein the kettle cover consists of an inner cover and an outer cover which are fixedly connected; a cavity is formed between the outer cover and the inner cover, and a spraying component is installed in the cavity; the mist spray component comprises a pump body, a piston slidably installed in the pump body, a water inlet pipe and a water outlet pipe connected with the pump body, a compression spring elastically supported between the piston and the water outlet pipe, steel balls for sealing arranged on the water inlet pipe and the water outlet pipe, a driving rod for driving the piston to move, and a force applying rod in transmission connection with the driving rod; the water inlet pipe passes through the inner cover and is connected to the bottom of the kettle body by a hose; the outer cover is provided with a mist spray head at the position corresponding to the water outlet pipe, and the upper end of the outer cover is also provided with an openable and closable spout formed by necking and a spout cover provided on the spout. The product is ingeniously designed, which can be directly drunk as a conventional kettle, and can also be used by spraying water and spraying mist to meet the daily simple cleaning needs.

[Object] To provide a trigger sprayer including a valve through which liquid flows with very high efficiency.

[Solution] The present invention is directed to a trigger sprayer for, in a state of being attached to a container, causing liquid inside the container to be sprayed from a nozzle part 3 through a passage by rotating a trigger part to move a piston part 5 to apply pressure to liquid inside a cylinder portion 42A of a cylinder structure 4, including: an F valve 2 provided in a passage between the cylinder portion 42A and the container; and an S valve 1 provided in a passage section between the cylinder portion 42A and the nozzle part 3, wherein the S valve 1 includes a first valve body 11 and a first valve seat 12, the first valve body 11 is oppressed against the first valve seat 12, and when the first valve body 11 moves away from the first valve seat 12 so that the S valve 1 opens, the first valve body 11 moves in the same direction as the direction that the liquid flows.

[Object] To provide a pump dispenser which allows accurate determination of a direction of spraying of liquid without a nozzle part moving toward a higher or lower position and, furthermore, whose trigger is excellent in operability.

[Solution] The present invention is directed to an F valve attachment structure for, in a pump dispenser that causes a piston part to slide to apply pressure to liquid inside a cylinder part including an F valve and causes the liquid to squirt out from a nozzle part via an S valve, attaching the F valve to the inside of the cylinder part with use of a valve stopper, the F valve including: a valve body part; and a rod-like part extending upward from the valve body part, wherein the valve body part has a plurality of guide pieces and check pieces therearound, the valve stopper has a hole and notches in a ceiling part of the valve stopper, the notches allowing the guide pieces to pass through the notches, the valve stopper is fixable inside the cylinder part, when the valve body part of the F valve is inserted through the hole of the valve stopper, the check pieces are allowed to elastically pass through the hole, and after insertion, the check pieces of the F valve come into contact with the ceiling part of the valve stopper to be retained.

The invention relates to a method for coating a surface (44), in particular a microstructured surface, of a component (55) comprising different materials, in particular glass and silicon, wherein the surface (44) is first activated and then coated, wherein an oxidising solution, a basic solution or an acid-oxidising solution is used to activate the surface (44).