A dispensing pump includes a spring assembly and a locking arrangement to prevent the dispensing head from being deployed and/or actuated during shipment, stocking and pre-purchase handling. The dispensing pump includes a pump base, and a dispensing head having a piston stem. The spring assembly includes a slotted tubular spring element and first and second loading cones received at opposing ends of the slotted tubular spring element. Various locking arrangements may include interacting rotatable lugs provided between the dispensing head and the pump base, snap beads to retain the piston and dispensing head in a secured shipping position, and recyclable locking rings disposed between the dispensing head and pump base which prevent an active dispensing head from being actuated.

A coupling device is disclosed for coupling a container to a closure. The container has a container sidewall extending between a first container end and a second container end. A container undercut is defined in an outer surface of the container sidewall. The closure has a closure sidewall extending between a first closure end and a second closure end. A closure outer sidewall is located radially outward from the closure sidewall and defines a slot between the closure sidewall and the closure outer sidewall. The second container end is received within the slot of the closure. A major projection and a major depression are located between the second container end and the slot of the closure cooperating for securing the closure to the container. A minor projection and a minor depression located between the container sidewall and the closure sidewall for cooperating for additionally securing the closure to the container.

Provided is a waterproof-type pump dispenser which is configured to more securely maintain a locked state of a push head and a piston shaft and to prevent foreign substances such as water from being introduced into a cylinder from the outside by improving a locking structure.

The present disclosure relates to a spraying apparatus for spraying a liquid onto a surface. The spraying apparatus includes a tank configured to store a liquid, a neck extending from the tank and defining an opening, a pump assembly including a collar removably attached to the neck, a pump configured to draw the liquid from the tank when actuated, and a housing defining a cavity therethrough to provide a carrying handle. A wand, separate from the tank, includes a body and a nozzle assembly, having a hub rotatably attached to the body and a plurality of nozzles circumferentially arranged around the hub and extending radially outwardly therefrom. An elongate hose, having a first end and a second end, interconnects the tank and the wand by attaching to the pump assembly of the tank at the first end and the body of the wand at the second end.

Disclosed is a lotion pump comprising: a pressing head (10) comprising a pressing head body (11); a cylinder (30); a cylinder head connected to an upper end of the cylinder and having an inner hole; a threaded sleeve (20) connected to the cylinder head; and a piston rod (40), with one end being connected to the pressing head body, and the other end extending into the cylinder and being provided with a piston (50). The lotion pump further comprises a neck sleeve (13) formed on the pressing head body. A first slope is formed on a lower portion of the neck sleeve, and a second slope matching the first slope is formed on the top of the threaded sleeve. The lotion pump having the foregoing structure can ensure the sealing against the outside when the lotion pump is in a standby state or an upper locked state, so as to prevent water from seeping into the lotion pump during bathing.

A pump and a dispensing device with a pump for dispensing a preferably liquid product are proposed, wherein the pump comprises a spring sleeve for a spring, which separates the spring from the product, and/or wherein the pump comprises a sealed spring chamber for a spring.

A dispenser pump has a plunger (3) operable in a body including an outer cylinder body (6) having a vent opening (66) in its sidewall and a body insert (7) fitting into the top of the outer body and providing an external collar through which the plunger stem operates. The body insert (7) has lock-down threads (722) to lock down the plunger for shipping. The insert (7) also has formations for blocking or unblocking the vent opening (66) by rotation between the outer body (6) and body insert (7), driven by rotation of the plunger head (31) which makes a catch engagement with the top of the body insert (7). This plunger head rotation is the locking or unlocking action for the plunger lock-down. Blocking the vent during shipping reduces leakage.

A pump assembly comprises a pump main body having a first cavity and a press rod. The press rod has a rod body and a piston portion in which the rod body is slidably provided in the first cavity in a penetrating manner and one end thereof extends out of the first cavity. The piston portion is connected to the rod body and is located in the first cavity to divide it into a first gas cavity and a second gas cavity, one or more of which are sealed cavities. Since the piston portion can rebound under the resultant force of a gas pressure in the gas cavities, the pump main body does not need a spring for rebounding the rod body. Accordingly, the pump assembly can be entirely made of a plastic material, and no metal material is mixed, so the pump assembly is easily recycled.

A sprayer device with a trigger operated pump is operative for pumping and spraying liquid from an attached liquid container. The trigger sprayer includes valve body provided with a base portion that is configured to be mounted to the neck of the liquid container and a delivery nozzle from which the liquid is sprayed. A fluid flow path extends from the base portion to the delivery nozzle. A pumping chamber is in fluid communication with the flow passage and there is a vent opening between the pumping chamber and the interior of said base. A piston with spaced inboard and outboard seals is movable in the pumping chamber and the vent opening is located between the seals. A check valve is disposed between the vent opening and the interior of the base portion to prevent liquid from the container from backflowing into the pumping chamber during shipment and handling.

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; 210; 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).