A trigger-type ejector includes: a pressure storage chamber formed in a nozzle head and communicating with a flow path through a communication hole; a pressure storage plunger including a large-diameter pressure receiving portion opposite a small-diameter pressure receiving portion and being movable between a close position where an ejection hole is closed and an open position where the ejection hole is opened; and a biasing member disposed in the pressure storage chamber and biasing the pressure storage plunger toward the close position, the trigger-type ejector being configured such that, when a pressure of a liquid in the pressure storage chamber becomes equal to or greater than a predetermined value, the pressure storage plunger moves from the close position to the open position against a biasing force of the biasing member and thus a liquid in the pressure storage chamber is ejected from the ejection hole to the outside.

A gas-filled resilient body and uses thereof are described. The gas-filled resilient body may be used as a valve member, as a spring or as a gas-propelled dispenser.

[Object] To provide a trigger sprayer excellent in ejection responsiveness and ejection stability.

[Solution] The present invention is directed to a trigger sprayer 100 having a base body 10 having a main cylinder portion 2 and a sub-cylinder portion 3 which can store liquid, a piston portion 20 slidable along an inner wall of the main cylinder portion 2, a trigger 30 for sliding the piston portion 20, a first valve V1 which opens and closes in accordance with pressure inside the main cylinder portion 2, and a second valve V2 which opens and closes in accordance with pressure of the liquid, the second valve V2 having a second valve piston portion 11a slidable along an inner wall 3a of the sub-cylinder portion 3 and an inverted-dome-shaped dome spring portion 11b for pressing the second valve piston portion 11a, and the dome spring portion 11b being elastically deformable.

A trigger dispensing head applicable to a bottle of a trigger dispensing device is provided. The trigger dispensing head has a cylinder chamber, a main vent passageway, a sleeve, a secondary vent passageway, an axially slidable piston, a suction duct, and a dispensing duct. The sleeve is rotatable by a user between an angular working position in which the main vent passageway is in fluid communication with the secondary vent passageway and an angular rest position, in which the main vent passageway is fluidically separated from the secondary vent passageway.

A fluid dispenser having an accumulator and a discharge head. The discharge head is secured to a base unit of the dispenser, which base unit includes a fluid accumulator. The discharge head has a housing displaceable relative to the base unit for actuating the dispenser. The discharge head has an inlet through which fluid travels from the fluid accumulator into the discharge head, and a discharge opening through which the fluid is delivered into the atmosphere. A swirling chamber having an inlet channel is provided between the fluid inlet and the discharge opening so that inflowing fluid is provided with a swirl which forms a spray stream when exiting the discharge opening. The swirling chamber is switched between a first and a second configuration by changing the geometry of its walls and/or the inlet channel.

A sprayer of liquids with trigger-operated pump includes a body which can be attached to the mouth of a container and a nozzle for delivery of the liquid. In the body is formed a pumping chamber in communication with the interior of the container and with the delivery nozzle. A one-way valve of suction and of delivery is located in the outlet duct of the liquid a system of precompression comprising a piston pushed with constant force by a spring in occlusion of the outlet duct such as to increase the pressure of the liquid in the outlet duct during the pumping, and also thereby increase the speed or the acceleration of the liquid in output from the nozzle.

A dispenser assembly for dispensing a liquid product includes a bottle configured to store the product, a venting pump connected to the bottle and configured to control dispensing of the product from the bottle, a mounting component, and an enclosure connected to the mounting component and engaging the bottle, wherein the enclosure is movable relative to the mounting component between an open configuration and a closed configuration, and wherein the bottle is selectively removable from the enclosure when the enclosure is in the open configuration.

A trigger-type liquid ejector includes: an ejector main body; and nozzle member provided with an ejection hole. The ejector main body includes: a vertical supply pipe for sucking-up liquid; an ejection barrel communicating with the inside of the vertical supply pipe; and a trigger mechanism including a trigger, the trigger being arranged to be movable rearward in state of receiving forward force, and the trigger mechanism being lead liquid from the vertical supply pipe into the ejection barrel in accordance with rearward movement of the trigger and to eject the liquid from the ejection barrel. The nozzle member is provided with: a cylinder communicating with the inside of the ejection barrel through a supply hole; a plunger accommodated in the cylinder to be movable rearward in a state of receiving forward force; and a communication hole allowing the inside of the cylinder and ejection hole to communicate with each other.

A gas-filled resilient body and uses thereof are described. The gas-filled resilient body may be used as a valve member, as a spring or as a gas-propelled dispenser.

A trigger-type ejector includes: a pressure storage chamber formed in a nozzle head and communicating with a flow path through a communication hole; a pressure storage plunger including a large-diameter pressure receiving portion opposite a small-diameter pressure receiving portion and being movable between a close position where an ejection hole is closed and an open position where the ejection hole is opened; and a biasing member disposed in the pressure storage chamber and biasing the pressure storage plunger toward the close position, the trigger-type ejector being configured such that, when a pressure of a liquid in the pressure storage chamber becomes equal to or greater than a predetermined value, the pressure storage plunger moves from the close position to the open position against a biasing force of the biasing member and thus a liquid in the pressure storage chamber is ejected from the ejection hole to the outside.