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 anti-loosening emulsion pump comprises a press head, a toothed sleeve, a cylinder and a piston rod, wherein the press head and the toothed sleeve are respectively provided with standing tooth pieces and standing tooth blocks interacting with each other. When the press head is rotated in a locking direction, the standing tooth pieces can move beyond the standing tooth blocks, and when the press head is rotated in an opening direction, the standing tooth pieces and the standing tooth blocks interact with each other, the rotation of the press head can be prevented. The press head of the anti-loosening emulsion pump further includes a press mouth which is movable relatively. The anti-loosening emulsion pump of the present invention can prevent the press head from being open due to such reasons as impact and the like, and can prevent the toothed sleeve from loosening from the opening of the container.

Locking features of a pump system may include projections and corresponding features on a piston stem and lock cylinder of a pump system such that the features are configured to require an increased amount of force to rotate and unlock the piston stem from the lock cylinder.

The invention pertains generally to an improved fluid dispensing device, particularly a dispensing device which employs at least one hemispherical domed cannister source of reactants and which uses a color-changing dispensing plastic tip to inform the end-user if the reactants are at a proper use temperature.

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.

An apparatus (10) for pumping first and second selected sterilizing or cleaning fluids (F1, F) by a user comprising: a first fluid container (12), a second fluid container (12k), a first pump assembly (18), a second pump assembly (18k), the first and second pump assemblies (18, 18k) being interconnected in an arrangement adapted to simultaneously pump the first fluid (F1) through upstream end fluid delivery apertures (22a) and the second fluid (F) through a laterally extending spout (24k) on manual driving of the external device in the downstream direction (D), the first fluid (F1) being delivered to the complementary surface (17s) of an external device (15) separately from the second fluid (F).

The invention pertains generally to an improved fluid dispensing device, particularly a dispensing device which employs at least one hemispherical domed cannister source of reactants and which uses a color-changing dispensing plastic tip to inform the end-user if the reactants are at a proper use temperature.

Disclosed is a full-plastic liquid pump and a containing container having same, which employs a plastic spring (12) and a plastic one-way valve (15), wherein the plastic spring (12), the plastic one-way valve (15), and other parts of the full-plastic liquid pump are all made of plastic materials. The full-plastic liquid pump can be recycled as a whole without splitting, which reduces the cost of recycling the full-plastic liquid pump, and facilitates improving the utilization rate of resources, thereby better facilitating protecting environment.

A hand pump design that utilizes an actuator with a folding nozzle suitable for use in e-commerce is presented. The folding nozzle equipped pump actuator forms part of a hand pump assembly which incorporates a pump body assembly comprising upper and lower pump bodies and a sliding collar which controls the inlet of fluid to be dispensed into fluid passages in the pump assembly and subsequently into the pump actuator. The hand pump further includes upper and lower check balls to prevent back flowing of the fluid to be dispensed into the dispenser bottle.

A dispenser for liquid to pasty substances, has a dispenser head and a dispenser body. The dispenser head is movable in a displacement direction perpendicular to the horizontal bearing plane between an extended position and a retracted position for carrying out a pumping movement, the dispenser head can rotate relative to the dispenser body in such a way that the dispenser mouth moves in a horizontal plane when the dispenser head is rotated. In order to provide an advantageous design of a dispenser of the type in question, the dispenser has a tamper-proofing part which is secured to two parts of the dispenser which can rotate relative to each other, at one of the parts by a rupturable material bridge, and the material bridge can be ruptured in the course of a rotation of the dispenser head.