Abstract:
A hand holdable spray delivery system for dispensing a relatively viscous and/or solids laden liquid is provided. This spray delivery system includes a container adapted to house the liquid. A manually actuated pump device is mounted on the container. The pump device including an inlet passage, a pump chamber, and a discharge passage having a distal end connected in liquid communication so that the liquid is pumped from within the container, through the inlet passage, into the pump chamber and through the discharge passage upon manual actuation of the pump device. A slotted spray nozzle including a housing having an inlet side and an exit side is also included. The housing having an internal recess through the inlet side that terminates in an elongated orifice at the exit side. The internal recess being attached in liquid communication to the distal end of the discharge passage such that the liquid passing through the discharge passage flows through the slotted spray nozzle and converges toward the elongated orifice. The liquid is dispensed therefrom in a dispersed spray. The slotted spray nozzle can be made of a rigid material or an elastomeric material. A fan shaped dispersed spray pattern is generated when the nozzle is made using a rigid material, however, when an elastomeric material is utilized, the nozzle is capable of ejecting particles larger than the smallest dimension of the elongated orifice, thereby substantially reducing the likelihood of clogging. Several versions of the spray delivery system are illustrated, including a trigger operated sprayer and a reciprocating finger pump.
Abstract:
A precompression pump for the spraying of a liquid includes a pumping chamber (2) containing a first piston (7) associated with a manipulating element (6), this piston bearing against a first spring (9). A precompression chamber (5) is provided with a second piston (10) bearing against a second spring (11), the precompression chamber communicating with the pumping chamber, their axes of symmetry being offset. A feeder duct (4) is provided with a valve (4a, 15) leading into the pumping chamber. A dispensing element (17) is provided with a nozzle (20) and with a dispensing duct (18) connecting the nozzle and the precompression chamber. The connection between the nozzle and the precompression chamber is interrupted in the rest position of the pump and is established under the action of the manipulating element.
Abstract:
A creamy substance dispenser is formed from a small number of components of easy and economical construction and assembly. The dispenser includes a main body defining a metering chamber communicating with a creamy substance container, within the chamber there being sealedly slidable a piston from which is projected a hollow stem extending into a hollow appendix projecting from a skirt rigid with the main body. The appendix is provided with a discharge hole closable by the end of said stem and biased by a spring, the stem freeing said discharge hole when made to translate by manual action.
Abstract:
A consumer product passage incorporating a mixing chamber for mixing air and liquid. Consumer packages of the present invention are capable of providing excellent spray qualities at typical consumer product flow rates (e.g., less than about 1.0 cubic centimeters per second) while simultaneously maintaining relatively low air to liquid ratios (e.g., less than about 0.06:1 on a mass basis) and relatively low pressures (e.g., less than about 50 psi). The package of the present invention also offers significant environmental and safety advantages. For example, it does not depend upon dissolved propellants; and it permits the use of water in place of volatile solvents as thinning agents since high surface tension fluids are actually sprayed better. Several packages of the present invention are illustrated, including a standard aerosol version, pump and spray versions, and a finger pump version.
Abstract:
A device for dispensing of small volume comprises a pump associated with a container of the substance to be dispensed, the pump comprising: a hollow pump body; and a piston sliding inside said pump body in sealing contact with the pump body around a circular periphery of diameter D2; wherein the pump further includes: a push rod including a central channel in which a valve seat is formed, the push rod sliding in contact with the pump body around a circular periphery of diameter D1 less than D2; a punch secured to the piston and capable of bearing in sealed manner against the valve seat; and resilient means urging the piston against the valve seat.
Abstract:
In a manually operable discharging apparatus (1) in the extension of the medium pump (2) provided for conveying the medium and in directly equiaxial manner at the outer end thereof is provided a compressed air pump (50) located in a cap-like, common handle (22), with which by means of a compressed air duct (90) separate from the medium supply for furthering atomization compressed air can be delivered to the discharge nozzle (25) or in other areas of the discharging apparatus (1), e.g. to the medium discharge duct (24), so that it is also possible to clean said duct by blowing free. The compressed air pump (50) can be constructed in such a way that it starts with the compressed air delivery prior to the medium delivery of the medium pump (2) and ends after this. In addition, appropriately there is an at least two-stage atomizing device (100) for the additional atomization of a preatomized medium flow with a nozzle air flow in the vicinity of discharge nozzle (25).
Abstract:
A dispensing pump of the pressure accumulating type includes a reciprocable plunger/accumulator having a discharge valve coaxial with an inlet check valve carried by a stationary pump piston, the valves bearing directly against one another so as to close each other at the end of the plunger downstroke to thereby control the output of the pump.
Abstract:
A miniature type, rechargeable atomizing spray mechanism having a container for the liquid to be atomized, and further having a cap and axially aligned first and second pressure chambers, one of which depends within a receptacle while the other projects above the cap. A reciprocable spray head or actuator is arranged to cooperate with plural pistons, one each of which are telescopically arranged in said first and second pressure chambers. Upper and lower valve members are available to control the emission of spray of the liquid. The upper valve is maintained closed by a spring element, and the lower valve is opened by reciprocation of the actuator to permit withdrawal of the liquid from the container so that it may pass through a bore provided between the plural pistons and in the pressure chambers and be emitted as a spray from the spray nozzle at the spray head. Said first pressure chamber has advantageously at least one elevational rib axially formed within an annular recess formed on the inside peripheral wall thereof for providing a gap between the piston and the first pressure chamber means to thereby smoothly pump the liquid in the liquid container to the nozzle through the pistons telescoped within the respective pressure chambers and liquid passage in the actuator.
Abstract:
A mechanism wherein an air cylinder plunger which can move within the air cylinder is provided within a manually-operated sprayer. The air cylinder plunger compresses the space within the air cylinder in accordance with the spraying operation of sprayer pump of a manually-controlled sprayer and discharges the air into the liquid to be sent to the nozzle hole. The external air is sucked into the air cylinder through the nozzle in accordance with the liquid sucking operation of the sprayer pump.
Abstract:
A cylinder in which a liquid pressurizing chamber is formed is inserted into a liquid container. The cylinder has an unitary large-diameter portion and a small-diameter portion. A first piston is slidably received by the large-diameter portion of the cylinder. The cylinder also slidably receives an operation body including a second piston slidably in the large-diameter portion and a third piston slidably in the small-diameter portion. The liquid in the pressurizing chamber defined by the cylinder and the pistons is pressurized as the operation body is depressed overcoming a force of a spring. A stop valve mounted on the second piston is opened in response to the pressure generated in the pressurizing chamber, so that the liquid is allowed to reach, through a passage formed in the first piston, a nozzle for atomizing the liquid.