A fluid dispenser including a body, a chamber coupled to or formed as part of the body and configured to contain a quantity of fluid, and a piston coupled to the body and rotatable within the chamber to different position. The piston is movable relative to the chamber in a first direction along an axis to draw fluid into the chamber, and the piston is movable relative to the chamber in a second direction opposite the first direction to discharge fluid from the chamber. The piston has stroke lengths that are selectable via the different rotational positions of the piston and that are associated with metered quantities of fluid to be drawn into the chamber. An anti-reversal feature is disposed between the piston and the body. The anti-reversal feature inhibits reversal of the piston during movement of the piston in the first direction or the second direction.

A dispenser includes a housing and a discharge opening provided at the distal end of the housing. The dispenser includes a liquid reservoir and a control device having a pump or a switching valve, which control device is connected by a first line to the liquid reservoir and by a second line to the discharge opening, and via which control device liquid is conducted from the liquid reservoir to the discharge opening. The dispenser includes a push button provided laterally in a cutout of a circumferential face of the housing and connected to the control device such that pressing the push button actuates the control device so that liquid is conducted to the discharge opening. Measures for securing the dispenser include a rotatable sleeve over the push button, a secured cap, a securing arrangement on the push button, an interaction of the push button with an opposite side of the dispenser, and a receiving sleeve for the dispenser.

An e-liquid bottle includes a main body for receiving e-liquid therein, and an e-liquid injecting member mounted on a bottleneck of the main body. The e-liquid injecting member includes a sleeve, a chamber formed inside the sleeve for storing e-liquid therein, a single valve connected between the bottleneck and an e-liquid suction portion of the chamber for controlling the e-liquid flow to the chamber, a piston installed in an e-liquid feeding portion of the chamber, an e-liquid guiding pipe formed on the piston and extending into the sleeve, a base mounted on the sleeve to engage with the e-liquid pipe and driven by the piston move back and forth along the chamber to control the pressure in the chamber, an e-liquid feeding tube connected to an e-liquid outlet of the e-liquid guiding pipe. An interval is formed between the piston and the base so that the piston can move along the interval towards the chamber to separate the e-liquid guiding pipe from the base and connect an e-liquid inlet of the e-liquid guiding pipe with the chamber.

A discharging device for the discharge of liquid media is specified, with a pump chamber that comprises an inlet opening and an outlet opening, and with a piston that is displaceable in the pump chamber. The object is to be able to dispense a medium with high accuracy using the discharging device. For this purpose, the piston comprises a projection which enters the inlet opening after a predetermined stroke of the piston.

A hand-held lubrication device that allows for both one- and two-handed operation. The device utilizes a front-facing mounted trigger that actuates a rear-mounted plunger via two tie rods.

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.

In a dispenser for dosing of at least one component received in a receiving compartment, a valve device, forming an inlet valve and an outlet valve associated with an outlet opening, is formed of at least two valve elements.

A fluid dispenser for containing and dispensing metered amounts of fluid that includes a reservoir for containing fluid and a chamber positioned substantially within the reservoir for containing a quantity of the fluid. The fluid dispenser additionally includes a piston that is moveable within the chamber to draw fluid into the chamber when the piston is moved in a first direction with respect to the chamber, and to discharge fluid from the chamber when the piston is moved in a second direction opposite the first direction. Further, the fluid dispenser includes a user-manipulatable control coupled to the piston and rotatable about an axis to select one of at least two different metered quantities of fluid to be dispensed. The user-manipulatable control is further movable to move the piston relative to the chamber along the axis to selectively dispense the selected metered quantity of fluid.

Provided is a system and method for a vaporizer cartridge system wherein the cartridge provides the diffuser. More specifically, an embodiment of the system includes a vaporizing device providing a heating element proximate to a removable cartridge system receiving port, and a dispenser trigger structured and arranged to engage the removable cartridge to dispense a predetermined amount of a liquid concentrate from within the removable cartridge. The system further includes a cartridge with diffuser including: a housing; a reservoir of liquid concentrate; a diffuser element; a metered dispenser structured and arranged to dispense from the reservoir into the diffuser element a predetermined amount of liquid concentrate. An associated method of use is also provided.

A pump dispenser has a deformable pump chamber constituted by first and second part-chambers each having a respective resiliently deformable faceted chamber wall and a connecting conduit communicating between them. They may be moulded in one piece and require no separate restoring spring. The first and second part-chambers may be disposed in line between a pump body providing an inlet valve from a container and a movable actuator cap providing a valved outlet.