In one general aspect, a flow control valve includes: a housing including a tubular wall surrounding an interior passage, and a flow control section in which the tubular wall includes a conical inner wall surface; a protrusion disposed on an exterior surface of the tubular wall at the flow control section; a sealing member disposed in the housing and configured to be selectively moved to a sealing position in which the sealing member engages the conical inner wall surface to restrict flow of a fluid through the interior passage; and a recess disposed the conical inner wall surface and configured to allow the fluid to flow past the sealing member through the recess when the sealing member is in the sealing position, wherein the recess and the protrusion are radially aligned on the tubular wall.

A liquid pump capable of achieving pressure equilibrium includes a body, piston member, unidirectional input valve, unidirectional output valve, input inner-pipe, unidirectional gas-feeding hermetic-seal valve and input outer-pipe. The body has an input opening, output opening and piston opening. The piston member has a piston space communicating with the piston opening. The unidirectional input valve includes an input plug and input resilient element. The input plug abuts against the input opening. The unidirectional output valve includes an output plug and output resilient element. The output plug abuts against the output opening from outside. An input channel of the input inner-pipe communicates with the input opening. Direction of gas-flow between the unidirectional gas-feeding hermetic-seal valve and the input inner-pipe is opposite input direction of the input channel. The input outer-pipe has an input portion communicating with the input channel. A gas-feeding-channel is defined between a gas-feeding-portion and the input inner-pipe.

A system for testing the proper functioning of an atomiser for dispensing a fluid in the form of an aerosol is proposed, wherein the system comprises the atomiser and a test apparatus, wherein the atomiser comprises a container holding the fluid, and a housing part for inserting and/or replacing the container, wherein the container is movable relative to the housing part in order to dispense the fluid and the test apparatus comprises a measuring device for measuring the movement of the container when the fluid is dispensed. In addition, a method for testing the proper functioning of an atomiser for dispensing a fluid in the form of an aerosol is proposed, wherein the atomiser comprises a container holding the fluid, and a housing part for inserting and/or replacing the container, wherein the container is moved relative to the housing part in order to dispense the fluid and the movement of the container is measured and/or analysed when the fluid is dispensed.

A device for dispensing a fluid, including a pocket whose interior volume is delimited by a deformable wall; a pressing surface; a dispensing part including a dispensing cavity; an outlet; a dispensing orifice connecting the pocket to the dispensing cavity; and a dispensing valve located in the dispensing cavity.

The invention relates to a device for dispensing a fluid including: a tank arranged so as to contain the fluid; a dispensing pipe arranged so as to guide the fluid in a dispensing direction; a dispensing opening connecting the tank to the dispensing pipe; a dispensing valve which, in an open state, allows fluid to pass from the inside of the tank to the dispensing pipe via the dispensing opening and, in a closed state, does not allow fluid to pass from the inside of the tank to the dispensing pipe; and a return means arranged so as to exert a force on the dispensing valve. Said force moves the dispensing valve from the open state thereof to the closed state thereof. The return means includes a pouch forming a cavity. Said pouch is located in the dispensing pipe. The shape of the pouch is changed via compression when the dispensing valve is in the open state.

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 dispensing head including a cap having: an outer wall with at least one part referred to as the shell part and at least one part referred to as the pressing part that is made of a material more flexible than the at least one shell part; at least one outlet; an insertion orifice, a stopper, the stopper being mounted in the cap by being inserted into the cap from the insertion orifice side and in an insertion direction, at least one assembly, each assembly including: an inlet, passing through the stopper; a deformable pocket, an interior volume of which is intended to contain the fluid of this assembly and is delimited at least in part by the at least one pressing part of the cap; preferably a feed duct and/or a dispensing duct.

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.

In one general aspect, a flow control valve includes: a housing including a tubular wall surrounding an interior passage, and a flow control section in which the tubular wall includes a conical inner wall surface; a protrusion disposed on an exterior surface of the tubular wall at the flow control section; a sealing member disposed in the housing and configured to be selectively moved to a sealing position in which the sealing member engages the conical inner wall surface to restrict flow of a fluid through the interior passage; and a recess disposed the conical inner wall surface and configured to allow the fluid to flow past the sealing member through the recess when the sealing member is in the sealing position, wherein the recess and the protrusion are radially aligned on the tubular wall.

A dispensing head including: a cap having: an outer wall with at least one part referred to as the shell part and at least one part referred to as the pressing part that is made of a material more flexible than the at least one shell part; at least one outlet; an insertion orifice, a stopper, the stopper being mounted in the cap by being inserted into the cap from the insertion orifice side and in an insertion direction, at least one assembly, each assembly comprising: an inlet, passing through the stopper; a deformable pocket, an interior volume of which is intended to contain the fluid of this assembly and is delimited at least in part by the at least one pressing part of the cap; preferably a feed duct and/or a dispensing duct.