Abstract:
An atomising nozzle (10) has an inlet (16), an outlet orifice (21) and an internal fluid flow passageway (20) which connects the inlet (16) to the outlet orifice (21). The nozzle (10) has a body with two component parts (12A, 12B) each component part having an abutment surface (22, 24) which contacts a corresponding abutment surface on the other of the parts. At least one of the abutment surfaces has at least one groove and/or recess (26a-34a; 26b-34b) therein to define part of the fluid flow passageway (20), including an expansion chamber (28). The body has a fixed partition means (44) which extends into the expansion chamber (28) to define one or more than one constricted openings (48) through which fluid is constrained to flow. The constricted opening has a cross sectional area larger than that of the final outlet orifice (21) and is positioned outwardly of an axially central region (52) of the expansion chamber (28) so that the partition means (44) blocks the flow of fluid through said axially central region. At least one of the constricted opening(s) (48) is non-circular when viewed in lateral cross-sect ion.
Abstract:
This invention relates to pump-action nozzle devices methods of making the same. The nozzle devices of the invention comprises a body which defines an internal chamber having an inlet through which fluid may be drawn into said chamber and an outlet through which fluid present in the chamber may be expelled from the nozzle. The inlet comprises an inlet valve and the outlet comprises an outlet valve. Fluid is dispensed from the dispenser nozzles by applying pressure to an actuator member that engages and resiliently deforms or displaces a portion of the body of the device that defines the chamber, thereby compressing the chamber and actuating the dispensing of fluid. In preferred embodiments, the actuator provides a rigid actuator surface that an operator can apply a pressure to.
Abstract:
This invention relates to improved dispenser nozzles and methods of making the same. The dispenser nozzles of the invention comprises a body which define two or more internal chambers, both of which have outlets and at least one of which has an inlet. The inlet comprises an inlet valve and the outlet comprises an outlet valve. Fluid is dispensed from the dispenser nozzles by applying a pressure to a resiliently deformable or displacable portion of the body of the device that defines the chamber, thereby compressing the chamber and actuating the dispensing of fluid. The additional chamber(s) may contain further liquids or gaseous substance ( e.g. air). In preferred embodiments, the actuator is an over cap or a trigger actuator.
Abstract:
A self-unblocking spray nozzle (10, 11) in which an easily removable insert (12) is automatically moved by fluid pressure to form a spray orifice (26), and expands resiliently when the fluid pressure out. The insert (12) may include swirl vanes (33) to rotate the fluid, and may operate with a static member (14) to form an automatic anti-drip valve.
Abstract:
This invention relates to pump-action dispenser nozzles and methods of making the same. The dispenser nozzles of the invention comprises a body formed of one or two component parts which defines an internal chamber (700) having an inlet (503) through which fluid may be drawn into said chamber (700) and an outlet (403) through which fluid present in the chamber may be expelled from the nozzle. The inlet comprises an inlet valve and the outlet comprises an outlet valve. The dispenser nozzle further comprises a locking means (1407) adapted to be moveable between a locked configuration in which the operation of the dispenser nozzle is inhibited and an unlocked configuration in which the dispenser nozzle can be operated.
Abstract:
This invention relates to pump-action nozzle devices and methods of making the same. The dispenser nozzles of the invention comprises a body which defines two or more internal chambers, both having outlets and at least one of which has an inlet through which fluid may be drawn into said chamber. The inlet comprises an inlet valve and the outlet comprises an outlet valve. Fluid is dispensed from the dispenser nozzles by applying pressure to an actuator member which in turn engages a resiliently deformable/displacable portion of the body of the device that defines the chamber, thereby compressing the chamber and actuating the dispensing of fluid. The additional chamber(s) may contain further liquids or gaseous substance ( e.g. air). In preferred embodiments, the actuator is an over cap or a trigger actuator.
Abstract:
An aerosol dispenser has a canister to contain a liquid product to be dispensed together with a propellant present at least partly as a gas and valve (10) to control the release of the liquid product from the canister. The dispenser also has a vapour phase tap for introducing a portion of the gaseous propellant into the liquid product as it is dispensed. The invention is characterised in that the dispenser has a flow control means for varying the rate at which the propellant gas is introduced into the liquid product through the vapour phase tape in dependence on the pressure of the contents of the canister. The flow control means can be used to reduce the amount of propellant gas bled into the liquid product, particularly when the dispenser is full and the pressure in the canister is high, as a means of conserving the propellant gas.
Abstract:
A dispenser device for liquors, pastes or foams and the like fluid materials comprises a reservoir (10) for fluid material, an outlet (12) for said reservoir and an outlet passage (18) to connect the reservoir outlet with an outlet orifice (19) of the device. Means (21) defining a post-expansion chamber are provided between the reservoir outlet and said outlet orifice to prevent material from escaping from the outlet after use. The post-expansion chamber is configured to increase in size once actuation of the device has stopped.
Abstract:
A body (100) for a nozzle arrangement includes two parts (106, 107) that can be assembled together to form at least part of the body. Each of the parts has an abutment surface (108, 109) adapted to contact a corresponding abutment surface (108, 109) on the other of said parts when the parts are assembled. The parts also have corresponding formations (110, 111) that co-operate to define between them an outlet (102) and at least a portion of an internal passageway (103) connecting the outlet to an inlet (101) when the parts are assembled. A first of said parts (106) comprises at least one filter projection (104) extending towards a second of said parts (107). The second of said parts (107) has at least ane filter formation (103a) that co-operates with the least owe filter projection (104) to form a filter in the passageway. The at least one filter formation may be a recess (103a) or may be one of more projections extending from the second part towards the first part.
Abstract:
A nozzle arrangement includes a chamber (204) having a plurality of divergent inlet orifices (203) which are directed towards opposed walls (205) or sidewalls (206) of the chamber (204). The chamber (204) is further provided with a plurality of outlet orifices (102) which are not aligned with the inlet orifices (203) and in the preferred embodiment also constitute outlet orifices of the nozzle arrangement.