A device for dispensing a liquid from a container is disclosed, comprising: an engine, comprising a nozzle and a pump for transferring liquid from the container to the nozzle; a trigger, moveable between a first position and a second position, connected to the pump for actuating the pump when brought from the first to the second position, and connecting means, for connecting the engine to the container characterized by
a slider with at least one restricting element, slideable between a non-restricting position, in which the trigger is moveable between the first and second position, and a restricting position, in which the at least one restricting element restricts the movement of the trigger between the first and the second position.

A food pump with a safe outlet valve and an outer mounted spring comprises a pressing head (1), a primary column (2), a secondary column (3), a piston (4), a pump chamber (5), a spring (6) and a bottle locking cover (8). The pressing head (1) is installed on the primary column (2) which is arranged within the pump chamber (5). The secondary column (3) is connected to a lower end of the primary column (2). The piston (4) is sleeved on outer sides of the primary column (2) and the secondary column (3). A lock cover (9) capable of fixing the primary column (2) to the pump chamber (5) is fixed on the pump chamber (5). An outer side of an upper end of the lock cover (9) is provided with a cover flanging (91) which is turned outwards and then turned downwards to stretch. An upper end of the pump chamber (5) is inserted and fixed onto an inner side of the cover flanging (91). The lock cover (9) is provided with a locking opening (92) protruding upwards above the cover flanging (91). An outer side of the locking opening (92) is provided with an outer thread (93). An upper end of the primary column (2) is provided with a locking flanging (21) which is turned outwards and then turned downwards to stretch in order to be sleeved on the outer side of the locking opening (92). An inner side of the locking flanging (21) is provided with an inner thread (22) in threaded fit with the outer thread (93), such that a pump core composed of the primary column (2), the secondary column (3), the piston (4), the pump chamber (5), the spring (6), a glass bead (7) and the lock cover (9) can be stored and transported independently, thereby matching different pressing heads (1) and bottle locking covers (8) according to requirements, such that the use thereof is flexible.

A product dispenser holder comprises a dispenser holder body configured to receive a product dispenser that stores a supply of a product to be dispensed, an actuation sensor that senses actuations of the product dispenser, and an actuation button, such that when an actuation force is applied to a pump of the product dispenser, a substantially downward force is applied to the actuation button causing the actuation button to rotate substantially downwardly and actuate the actuation sensor to generate a dispenser actuation signal.

The invention is an apparatus unit that adjusts the dispersion from a compartment to an aqueous solution in response to an independent variable such as an environmental factor, in order to optimize seeding, marking, warning or treatment. The compartment enables any selection of solids, liquids or gasses to be contained and mixed when ready for dispersion. A preferred embodiment is a solar powered pump, self-contained within a buoy over a shallow tidal pool, for the purpose of distributing seeds for marine vegetation under ideal conditions for propagation. The unit provides for sensing and measurement of the environment, then adapting the dispersion for optimum effect.

The present invention concerns a system (1; 501; 601; 701; 801) for dispensing a fluid (L), comprising a container (C; C′) for the fluid (L) and a device (10; 210; 210′; 310; 410; 410′) for dispensing the fluid (L). The device (10; 210; 210′; 310; 410; 410′) comprises a collapsible chamber (20) which defines a volume (V) suited to receive a quantity of said fluid (L) to be dispensed. The chamber (20) is defined by a first portion (30) and a second portion (130) mutually coupled with each other, wherein the first portion (30) comprises an area connected to the container (C; C′) and wherein the second portion (130) comprises an area connected to the container (C; C′).

A dispenser pump has a plunger operable in a body including an outer cylinder body having a vent opening in its sidewall and a body insert fitting into the top of the body cylinder and providing an external collar through which the plunger stem operates. The body insert has a lock-down thread to lock down the plunger for shipping. The insert also has an undulating annular vent-control bead extending right round its cylindrical outer surface, engaging the cylinder wall with interference for either blocking or unblocking the vent opening, according to whether the vent-control bead lies above or below the interior vent opening, by rotation between the body cylinder and body insert. The rotation can be driven by rotation of the plunger head, which makes a catch engagement with the top of the body insert. Blocking the vent during shipping reduces leakage.

The present invention is an improved nozzle for spraying viscous substances which includes the following key elements: (1) the nozzle includes a round hole at the nozzle middle-center location; and (2) the center round hole is surrounded by five circumferential modified trapezoid shaped hole openings, with each of the modified trapezoid shaped hole openings having a pair of divergent sidewalls with an arcuate top wall and a smaller acuate bottom wall and set at a distance separated from each other at seventy-two degrees in a circle around the center opening. The distance from the center of each circumferential opening to the middle center opening is also the same. The present invention will enable the spraying of heavy viscous substances and gels.

A trigger sprayer having a venting system including a piston bore and a vent bore at least partially contained therein, the vent bore including at least one vent port; a piston and vent piston are moveably seated in the piston bore and vent bore, respectfully, the vent piston including at least one annular seal and a vent path port, the vent path port and vent port in gaseous communication when the vent piston is actuated and moved over the vent port.

A product dispenser holder comprises a dispenser holder body configured to receive a product dispenser that stores a supply of a product to be dispensed, an actuation sensor that senses actuations of the product dispenser, and an actuation button, such that when an actuation force is applied to a pump of the product dispenser, a substantially downward force is applied to the actuation button causing the actuation button to rotate substantially downwardly and actuate the actuation sensor to generate a dispenser actuation signal.

A fluid pumping device for portioned dispensation of viscous fluids includes a base, which is configured to be positioned on a substantially horizontal surface. A pipe is engaged to and extends from a top of the base. A pump is operationally engaged to the pipe distal from the base. A spout is engaged to and extends from the base. The spout and the pump are in fluidic communication with the pipe. A socket is engaged to the pump so that the pump is in fluidic communication with a reservoir defined by the socket. The socket is complementary to a neck of a container containing a viscous fluid and thus can threadedly engage the container so that the container is inverted relative to the substantially horizontal surface. The reservoir holds the viscous fluid flowing from the container. The viscous fluid is pumped through the pipe and the spout by the pump.