Abstract: A dispensing container with a pump includes a neck, a manual pump of a push-down type disposed in the neck, a push-down head fitted to the top of the pump, and a cap having an attaching cylinder fitted around the neck. A rotary cylinder is disposed on the outside of the attaching cylinder coaxially on central axis. A cover cylinder having a cover wall is disposed coaxially between the attaching cylinder and the rotary cylinder in a manner capable of going up and down under the condition that an elevating system has been established with the attaching cylinder and the rotary cylinder by the rotary movement of the rotary attachment. The cover cylinder is disposed so the push-down head is exposed out of the cover cylinder at its lower-limit position and cannot be pushed down at the upper-limit position of the cover cylinder to prevent contents from being erroneously discharged.

Abstract: The present invention is a fluid dispensing device, connectable/disconnectable to/from a container. The device, actuable by a trigger, comprises both closing means comprising a turnable nozzle and means for locking the sliding of a dispensing piston.

Abstract: The invention relates to a discharge device for preferentially liquid media with a housing (12), an actuation handle (20) which is formed so that it can move relative to the housing (12), and a transport device (16) which is formed such that in response to a movement of the actuation handle (20) relative to the housing (12) medium is transported through a discharge opening (24), whereby a blocking device (30) is provided through which the movement of the actuation handle (20) relative to the housing (12) can be restricted.

Abstract: A fluid dispenser comprising: at least one fluid reservoir (1a, 1b) provided with an opening (11a, 11b); at least one fluid dispenser member (3a, 3b), such as a pump or a valve, comprising a body (31a, 31b) that is mounted in stationary manner on the opening of the reservoir, and an actuator rod (32a, 32b) that is axially movable down and up along an axis X over a stroke; a pusher (9) that is axially movable down and up along an axis Y so as to move said at least one actuator rod (32a, 32b) axially; and the dispenser being characterized in that it further comprises stroke-variation means (8) for varying the stroke of the actuator rod, said means being disposed between the pusher (9) and said at least one actuator rod (32a, 32b), so as to vary the stroke of the stem.

Abstract: A tamper evident nozzle shield (100) may be configured to fit a pump or pump dispenser to protect a fluid path (12) in the dispenser from contamination or to prevent or visually indicate if a dispenser or pump dispenser has been tampered with.

Abstract: The invention provides a water-ingress-preventing mechanism for a lotion pump. The mechanism is mainly used for a lotion pump mounted on a container with a liquid therein and is able to effectively prevent foreign liquids from entering the container. According to one aspect of the invention, in the locking tube portion (13) of the press head (10) is formed at least one longitudinal slot (15) which extends upwards from the lower end edge of the locking tube portion over at least part of the length of the locking tube portion. The slot is disposed such that the upper end of the slot is at a position above the top surface (25) of the cylinder cover (20) when the press head is pressed down to and at the lower stop position of its press stroke with respect to the cylinder cover.

Abstract: On a continuous machine for filling containers with at least one product, each container is fed along a given path in time with a relative metering device, which withdraws the product from a tank, feeds the withdrawn product into the container, and has a piston and a cylinder movable axially with respect to each other; and a lock device provides for selectively locking the pistons and relative cylinders.

Abstract: The invention concerns a device for dispensing a fluid or pasty product comprising a dispensing member (4) fixed to a container (2) with a sealing ring (10), said container (2) including a neck (7), said dispensing member (4) having mounted thereon a push-button (3) capable of being depressed to operate said dispensing member (4), said push-button including a dispensing orifice (14) enabling a product to be expelled when said dispensing member (4) is operated, and a cap (5), integral with said push-button (3), upon translation about a median axis of the dispensing device towards said container (2), an edge of said neck (7) including a ramp (8), and edge of the cap (5) including a ramp (11), said ramps (8, 11) being mutually mobile in rotation between a dispensing position wherein the dispensing member (4) can be actuated and a locking position wherein they prevent the dispensing member (4) from being actuated.

Abstract: Pump for applying an increased or reduced pressure to a container. The pump is provided with a plate-like part which reacts to the pressure difference between the container and the environment. This part can preferably adopt two stable positions, and a change is signalled. This change can be brought about, for example, by the sound generated as a result of the plate-like part turning over. The pitch and the like of the sound can be influenced by arranging the plate-like part in a hollow piston and providing the latter with openings leading to the environment.

Abstract: A device for dispensing a viscous fluid product, including a pump having an inlet; an outlet; a cylinder; a piston in the cylinder; and a piston rod attached to the piston with its first end being exposed. The pump pumps viscous fluid product from a container to the outlet when the inlet is submerged in the viscous fluid product and the piston rod is axially moved relative to the cylinder. The device further includes a handle attached to the piston rod; a nozzle rotatably mounted on the handle around a rotation axis, in fluid communication with the outlet, and having a discharge orifice offset from the rotation axis; and a mechanism for rotating the nozzle around the rotation axis when the piston rod is axially moved relative the cylinder so that the discharge orifice moves in a circular pattern for dispensing the viscous liquid product in a substantially helical pattern.

Abstract: A pump head for a displacement pump used in a bottle dispenser and configured to minimize misdirection of solution dispensed through an orifice thereof. The pump head is an integrally molded one piece structure, having an elliptical outlet orifice that lies in a substantially horizontal plane, and having a major axis substantially twice that of the minor axis. The configuration and the positioning of the orifice minimizes clogging or coagulation of certain solutions, obscures such coagulation from view, and minimizes the misdirection of any dispensing through the nozzle orifice that would otherwise result from clogging or coagulation. The pump head is particularly adapted for use with displacement pumps employed in bottle dispensers and the like.

Abstract: A pump dispenser includes a tube seat engaged in a rotating lid of the lotion bottle; a pump arranged on a bottom of the tube seat for drawing the lotion unilaterally; a through hole arranged in the tube seat and communicated with the pump; a pipe movably received in the through hole to be configured for guiding the lotion in the pump; a press head placed over an opening of the pipe exposed out of the top of the through hole to be configured for guiding the lotion in the pipe out; at least one upper trapezoidal body opening upwards and at least one lower trapezoidal body opening downwards arranged on the inner surface of the through hole; and at least one protrusion arranged on the outer surface of the pipe. The protrusion moves into or out of the bottom of the lower trapezoidal body by rotating the head press for preventing or permitting the press head from moving upwards such that the lotion bottle is convenient to be carried.

Abstract: A nebuliser micro-pump (1) provided with an element (2) for covering and triggering its dispensing push-button (3), has an elongated body (5) with central axis (x), whereon is mounted a dispensing push-button complete with a tube (4) for orienting the spray, rotatable around the axis. The element has a lower fixed half-shell (12) integral with the elongated body and a lower half-shell (17) movable around a hinging axis (y) that is perpendicular to the central axis and offset relative thereto at the opposite side from the tube. The upper half-shell has a protuberance (20) acting on the dispensing push-button in the rotation of the movable half-shell relative to the fixed half-shell according to the arrow (W). The half-shells (12, 17) have respective through openings (15, 23) wherefrom simultaneously projects the tube in two angular positions, one non operative and the other one operative for the micro-pump.

Abstract: The invention concerns a device for locking an axially mobile actuating and freely rotating head of a pump whereof the body is mounted on the neck of a reservoir of liquid product via a connecting socket. The invention is characterized in that it comprises an intercalated ring mounted on top of the pump body and whereof the inner side wall is provided with at least one longitudinal guiding groove capable of receiving, through rotation of the head, at least one rib bone by an inner coaxial sleeve integral with said head.

Abstract: An airless dispenser pump assembly includes a pump mechanism with an inlet valve that is configured to efficiently pump viscous fluids and that is able to be pre-primed when the pump mechanism is attached to a container. In one form, the inlet valve includes a seal member that seals an inlet port of the pump and an outer support member that secures the inlet valve to the rest of the pump mechanism. Two or more legs generally extend in a circumferential direction between the support member and the seal member in order to create a large flow opening for fluid flow through the inlet valve when opened and to rapidly close the inlet valve. The pump mechanism further includes an outlet valve that is configured to draw fluid back from a nozzle of the pump after dispensing in order to minimize build up around the nozzle.

Abstract: Manual piston pump having a blockable dispensing head for dispensing fluid substances, having a cylinder, an inner locking sleeve forming a cylindrical passage for a hollow piston rod to pass through, one end of this extending into a pump chamber of the cylinder and the other end carrying the dispensing head, which is provided with an outer shaft section, a spring which presses the piston rod outwards in relation to the cylinder, into a rest position, and in opposition to the spring force whereof the piston rod may be lowered by pressing on the dispensing head in order to dispense substance, and having a means for blocking the dispensing head, this means including at least one locking element which may be brought into engagement with the locking sleeve, in which, together with the piston rod (6), the locking sleeve (5) forms an inner cage (18) for receiving the spring (19), which is supported at one end against a base (20) of the locking sleeve (5) and at the other against the locking element (21) provided on

Abstract: A fluid dispensing system includes a pump body configured to couple to a container. The pump body defines fluid inlet openings and a pump cavity. A shroud cover covers the pump body to draw fluid from the container. An inlet valve allows fluid from the container to enter the pump cavity through the fluid inlet openings. A plunger is slidably received in the pump cavity, and the plunger defines a fluid passage with a dispensing opening through which the fluid is dispensed. A shipping seal seals the fluid passage during shipping to minimize leakage of the fluid during shipping. An outlet valve is disposed inside the fluid passage to minimize the height of the fluid between the outlet valve and the dispensing opening so as to minimize dripping of fluid from the dispensing opening. The pump body includes a venting structure to normalize the air pressure inside the system.

Abstract: The object of the present invention is a fluid dispensing device (1), connectable/disconnectable to/from a container and a method of using the device. The device, actuable by a trigger (80), comprises both closing means comprising a turnable nozzle (50) and means for locking the sliding of a dispensing piston (14).

Abstract: A pump with a pressure driving head comprises a retaining tube; the retaining tube having a receiving space; liquid can flow therein; a returning element being installed in the receiving space; a movable tube received in the receiving space of the retaining tube; a head extending from a top of the movable tube; the head having an outlet which is communicated to the movable tube; when a pressure is applied to the head, the movable tube will move axially in the retaining tube; and an isolation device tightly adhered upon an inner wall of the receiving space of the retaining tube; an air isolation chamber being formed by the isolation device and the movable tube; with the pressing affect of the movable tube, a part of liquid in the retaining tube will be stored in the air isolation chamber so as to be formed with an air isolation layer.

Abstract: A discharge device for manually producing a volume flow by a discharge stroke, having a medium reservoir for at least one medium, a discharge opening, a pumping device and a working area associated with the pumping device and which in the inoperative position has a detachable, positive connection to a holding area by means of a locking device is known. According to the invention the locking device in at least one plane orthogonal to a discharge stroke direction has an at least zonally or circumferentially corrugated and/or polygonal cross-section. Use for discharging a medium.

Abstract: Apparatus for projecting a slug of liquid through the air. The invention provides means to accelerate liquid molecules to substantially equal velocity, and then to release them with minimal turbulence.

Abstract: A manually-actuated device for dispensing a fluid in liquid or powder form and that comprises a fluid reservoir (10), dispensing means (20) for selectively dispensing the fluid contained in the reservoir (10), a dispensing head (30) provided with a dispensing orifice (31), and an actuating system (40) for manually actuating said dispensing means (20), said device being provided with a captive cap (50) mounted to move between a rest position, in which it covers the dispensing orifice (31) and prevents the dispensing means (20) from being actuated, and an in-use position, in which it uncovers the dispensing orifice (31) and enables the dispensing means (20) to be actuated, characterized in that said cap (50) is part of said actuating system (40), said cap (50) actuating said dispensing means (20) by being moved towards its in-use position.

Abstract: A self-contained viscous liquid dispenser includes a housing defining an internal liquid reservoir, and an opening defined through a front surface of the housing. An insert member is fitted through the opening, extends into the reservoir, and defines an internal pump chamber having a back end open to the reservoir and a front end open to the outside of the housing. A pump cylinder is slidably disposed and retained in the chamber. The pump cylinder is movable within the pump chamber from a rest position to a pressurizing position to pressurize and dispense liquid within the pump chamber through a delivery channel and out a dispensing orifice in the pump cylinder. The pump cylinder may be a multiple component device.

Abstract: A pump for fixing onto a receptacle to dispense a substance contained therein. The pump has a pump body that includes at least one air intake vent. A pushbutton is movable relative to the pump body between a low position and a high position. A suction valve includes a shutter-forming member. A piston co-operates with the pump body to define a pump chamber of variable volume. Also, a dispenser duct is provided through which the pump chamber can communicate with a dispenser orifice. A sealing skirt surrounds the dispenser duct on at least a fraction of the height of the dispenser duct. The sealing skirt is configured to co-operate with the pump body when the pushbutton is in its low position so as to isolate the vent from an outside ambient environment. As examples of a few aspects, the dispenser duct is provided as an element attached to the pushbutton and the piston is movable relative to the dispenser duct.

Abstract: A dispensing device for dispensing a measured quantity of a concentrated cleansing liquid into a spray bottle or any other suitable receptacle, is provided with means for pumping the measured quantity of the liquid from a source into a holding reservoir. The dispensing device includes inhibiting means for preventing the interruption of a priming stroke as the liquid is pumped from the source into the reservoir and for preventing the interruption of a delivery stroke as the liquid is pumped from the reservoir to the receptacle. The inhibiting means includes a pivotable lever having an arcuate rib engaged by a pair of locking members arranged to engage opposite tracks of the arcuate rib.

Abstract: A finger-operable pump cartridge is disposed within a closure for mounting the pump cartridge and closure to a container of fluent material. An actuator is mounted on the stem of the pump cartridge and has a skirt with a flange extending from, and continuously around, the skirt. A shroud is mounted around the closure and has a lip for engaging the actuator flange to inhibit removal of the actuator from the stem if the actuator is moved outwardly relative to the stem beyond a predetermined position. The actuator and closure may also include cooperating interengageable features accommodating rotation of the actuator relative to the closure between an actuatable position permitting reciprocation of the actuator and a releasably locked position preventing reciprocation of the actuator.

Abstract: A dispenser (1) is provided for unlocking the stroke with two first and second handles (44, 45) configured separate from the actuator handle (5) for actuating the pump stroke. For unlocking, the first handle (44) firstly needs to be actuated in a first release direction (46). Thereafter only an actuation in a second release direction (47) is possible with the second handle (45). It is not until after this second actuation that an unlocked position is attained, which permits implementation of the pump stroke. For the second motion (47) a restrain drag (43) is furthermore provided which can only be defeated by increasing the associated actuating force.

Abstract: A dispenser pump is provided with a pump head and a locking cap fastened to the pump head. The pump head and locking cap are provided with a ratchet portion to prevent the pump head from being disengaged from the locking cap accidentally or inadvertently. The ratchet portion can be twisted off to facilitate the disengaging of the pump head with the locking cap, so as to enable the dispenser pump.

Abstract: A liquid pump dispenser with a discharge spout is rendered child-resistant by the provision of a hollow sleeve surrounding the pump body and engaging an upper wall of the closure cap with at least one lip at an upper end of the sleeve engaging an underside of the plunger head to immobilize the head against actuation. The sleeve is removed prior to dispensing as the lip is pulled or forced away from the head permitting upward movement of the sleeve in a direction rotatable about the head as the spout extends through a cutout in the sleeve whereafter the sleeve is slid along the spout and completely removed.

Abstract: A piston pump elevator having fluid level measurement capability which is capable of providing an electrical signal proportional to the approximate amount of fluid remaining in a container from which fluid is being withdrawn.

Abstract: For the discharge, particularly atomization of media, particularly liquid medicaments, a dispenser (11) is provided, which discharges a charge of the medicament in only one or optionally a few strokes. Actuation takes place between three fingers of the user, the thumb pressing an actuating pusher (80) in the actuating and discharge direction. In order to prevent an unintentional actuation and simultaneously protect the discharge opening (44) against dirtying and contamination, a protective cap (90) is provided, which covers the entire discharge section (13) and the holding surfaces (14) for actuation. It also has web-like projections (93) extending up to the actuating pusher (80) and securing the latter, which prevents an actuation when the protective cap is fitted. However, actuation is possible after removing the protective cap, which is secured by a snap connection.

Abstract: An emulsion pump mechanism for preventing external dirty water from entering the emulsion bottle is described. The pump mechanism includes a pressing head having an internal passage. At the lower end of the passage there is a pipe connector on the outer wall of which is an external thread. Additionally, the pump includes a connecting pipe communicated with the internal passage of the pressing head. The pump mechanism also includes a cylinder cover. The cylinder cover includes a dirty water preventing guiding sleeve pipe integrally formed in a lower portion of the central through-hole for preventing dirty water from entering the emulsion bottle. The guiding sleeve pipe is in easy slide fit with the outer wall of the connecting pipe and has an upper end extending higher than an upper surface of the cylinder cover.

Abstract: A pump device adapted to be mounted on a liquid container includes a nozzle head formed on a top portion of a piston reciprocatively held in a liquid accumulator mounted on the liquid container, a restoring spring resiliently retained between the nozzle head and a fastening ring which is secured on an upper portion of the accumulator, a container cap secured on a top portion of the liquid container and fastened between the fastening ring and a flange of the accumulator, a suction tube connected to the accumulator and inserted in the liquid container for sucking liquid into the accumulator; characterized in that the restoring spring is disposed around a piston rod outside an interior of the pump and of the accumulator to prevent contamination of the liquid by the spring or to prevent corrosion of the spring by the liquid.

Abstract: A self-resetting child-resistant trigger sprayer having a lock slidingly mounted on the trigger lever for locking the trigger sprayer. The lock has a pair of extensions, a biasing member and a projection that all extend away from the main portion of the body of the lock. The extensions engage a portion of the trigger sprayer and the biasing member provide a restoring force that enables the trigger sprayer to be self-resetting. The projection is capable of being moved by the operator of the sprayer along the trigger lever. When in a raised position, the extensions disengage from a portion of the body of the sprayer placing the sprayer in an unlocked position. However, when the projection is released, the extensions engage a portion of the piston cylinder preventing the piston cylinder from moving and the biasing member automatically force the lock into a lower, locked position on the trigger lever thus rendering the sprayer self-resetting and child-resistant.

Abstract: A fluid substance dispenser includes a dispensing head or pusher to be fitted onto the stem of a pump. The fluid substance dispenser also includes a cap to be fixed onto the mouth of a container containing the substance to be dispensed. On the outer surface of the head and on the inner surface of the cap, spiral ribs are provided which extend in the same direction. The spiral ribs interfere with each other and pass snapwise over each other, when the head is pressed onto the cap. The spiral ribs cooperating “with each other” to cause the head to withdraw from the cap, when the head is rotated about the cap.

Abstract: A pump unit is provided which sucks a material having a high viscosity contained in a container and to pump it to a nozzle under pressure. An axial member which performs sucking and pumping of the material is connected with the pump unit. The axial member is axially slidable by the pressure of air supplied to the cylinder. The material which is sucked into the pump unit is discharged from the nozzle by the increase in pressure occurred when the axial member descends. A sensor is provided in the vicinity of the axial member. A result of detection of the sensor is supplied to a controller. A reference speed when constant rate application is performed is presettable in the controller. Correction of pressure is conducted by comparing the actual moving speed of the axial member with the reference speed.

Abstract: Lotion pump has a stepped piston telescoping inside a stepped body to define a pumping chamber. The piston has a downward annular wall having inlet and discharge apertures, one above the other, to the pumping chamber. A stem integral with the actuator has a sealing head inside the annular wall which shuttles up and down between positions at which it covers one aperture or the other. Shuttling is implemented by lost-motion between the actuator spout/stem and piston. A spring urges the stem up at all times. The actuator can be turned to lock the head over the discharge aperture by nullifying the lost-motion. Further turning can lock the stem in lockdown position. One-directional turnback can liberate the head and unlock the lockdown. Detents control sequence of unlocking.

Abstract: A trigger-type liquid dispenser comprises a mounting sleeve (2) to be fitted onto a neck portion of a container body, a vertical sleeve (2a) erected from the mounting sleeve (2), an ejecting sleeve (3) projected forwardly from an upper end portion of the vertical sleeve (2a), a cylinder (4) projected forwardly from a middle portion of the vertical sleeve (2a), a plunger (6) slidably engaged in the cylinder (4) and being urged forwardly, a trigger (5) swingably attached to a front portion of the ejecting sleeve (3), a rear surface of an upper portion of the trigger (5) being engaged with an front end portion of the plunger (6), a nozzle fitting sleeve (7) fitted to a front end portion of the ejecting sleeve (3), and a nozzle head (8) rotatably fitted to an outer surface of the nozzle fitting sleeve (7), said nozzle head (8) being formed with a nozzle hole (10). Liquid stored in the container body is sucked up and ejected through the nozzle hole (10) by pulling the trigger (5) rearwardly.

Abstract: A child resistant lock for manually-operated pump dispensers such as trigger sprayers, prevents movement of the trigger and reciprocation of the sprayer pump element when the lock is engaged.

Abstract: Outward flanges on top of pump outlet tube include a rearward latching section. The shroud is open-fronted. Extending downward along the top wall of the shroud are a pair of opposed channels to the rear of which are unitary downward locking wedges. In assembly, the open-fronted shroud is moved forward from the rear onto the pump body in a simple uni-directional linear movement, the channels receiving the outward flanges respectively. The wedges forcefully engage and pass the latching sections and take positions in front of them to block retreat of the shroud.

Abstract: The attachment comprises a cylinder-embracing support portion at least partly encircling the upper end of the pump cylinder and having openings therein receiving hooks on the cylinder. Unitary with the support portion is a plunger hold-down portion which engages the upper end of the actuator portion of the plunger. The attachment has a tamper-evident frangible zone located between the cylinder-embracing support portion and the engagement with the actuator portion.

Abstract: Outward flanges on top of pump outlet tube include a rearward latching section. A rearwardly extending horizontal shelf is formed on the vertical tubular support of the pump body. The shroud is open-fronted and includes a top wall, connected side walls and a rear end wall with an inward horizontal shoulder. Extending downward along the top wall of the shroud are a pair of opposed channels to the rear of which are unitary downward locking wedges. In assembly, the open-fronted shroud is moved forward onto the pump body in a simple unidirectional linear movement, the channels receiving the outward flanges respectively. The latching sections are flexed downward by the locking wedges and snap past them and the shoulder on the shroud slides under the shelf.

Abstract: Disclosed is a spray package having a container body, an actuator, and a shroud between the container body and the actuator. The actuator has a nozzle, and is adjustable between a locked position and an unlocked position by rotation of the nozzle about the actuator's longitudinal axis. The unlocked position allows vertical movement of the actuator for dispensing product from the package, and the locked position prevents vertical movement of the actuator to prohibit dispensing of product from the package. The locked position simultaneously provides cooperation between the nozzle and an anti-clog member, connected to and extending above the shroud. The anti-clog member has a nozzle seal on its inside surface which inhibits clogging of product within and about the nozzle when the seal is in contact with the nozzle.

Abstract: Lotion pump has a stepped piston telescoping inside a stepped body to define a pumping chamber. The piston has in its wall inlet and discharge apertures, one above the other, to the pumping chamber. A stem integral with the actuator has a sealing head inside the piston which shuttles up and down between positions at which it covers one aperture or the other. Shuttling is implemented by lost-motion between the actuator spout/stem and piston. A spring urges the stem up at all times. The actuator can be turned to lock the head over the discharge aperture by nullifying the lost-motion. Further turning can lock the stem in lockdown position. One-directional turnback can liberate the head and unlock the lockdown. Detents control sequence of unlocking.

Abstract: An attachable shroud and a dispensing pump with universal pump body upon which is formed outward flanges on top of a pump outlet tube which includes a rearward latching section. A rearwardly extending horizontal shelf is formed on the vertical tubular support of the pump body. The shroud is open-fronted and includes a top wall, connected side walls and a rear end wall with an inward horizontal shoulder. Extending downward along the top wall of the shroud are a pair of opposed channels to the rear of which are unitary downward locking wedges. In assembly, the open-fronted shroud is moved forward onto the pump body in a simple uni-directional linear movement, the channels receiving the outward flanges respectively. The latching sections are flexed downward by the locking wedges and snap past the wedges and the shoulder as the shroud slides under the shelf.

Abstract: A cylinder 12 is positioned along the vertical axis. A piston 16 and a trigger 18 are provided respectively with a pair of racks 40 capable of meshing with a pair of pinions 38 of a housing 14. By way of the pinion pair 38, pivoting motion of the trigger can be converted into a reciprocating movement of the piston along the vertical axis. It is thus possible to increase the amount of discharge of liquid in one stroke of the trigger without inducing for example a drop in operability upon molding.

Abstract: A dispensing pump including an actuator coupled to a resilient bellow, wherein the bellow is in fluid communication with the contents of a container via an inlet valve. Expansion of the bellow, caused by the resilience of the bellow, creates negative pressure causing the contents of the container to be drawn through the inlet valve and into a space defined by the bellow. The dispensing pump also includes an outlet valve in fluid communication with the bellow such that compression of the bellow caused by the application of pressure to the actuator creates positive pressure within the bellow causing the contents held within the bellow to be forced through the outlet valve and out of an outlet of the dispensing pump.

Abstract: A child-resistant liquid dispenser, such as a trigger sprayer, includes a dispenser body, a pump mechanism having a pump piston, and a trigger connected to the pump piston so that movement of the trigger effectuates movement of the pump piston. The pump mechanism is configured to draw liquid into an intake port of the dispenser body and discharge it through a discharge port upon reciprocating movement of the pump piston. The child-resistant liquid dispenser also includes a first locking mechanism which is engageable with the pump piston in a manner to prevent movement of the pump piston when in a locked position. The first locking mechanism is configured to permit normal movement of the pump piston when in an unlocked position. The child-resistant liquid dispenser further includes a second locking mechanism. The second locking mechanism is configured to releasably engage the first locking mechanism in a manner to releasably retain the first locking mechanism in its locked position.

Abstract: A removable latch for use with a trigger actuated pump sprayer renders the sprayer child-resistant as the latch, of a one-piece plastic molded construction, is braced between a trigger actuator and an opposing portion of the pump body. The latch has an integrally molded spring biased clamp which engages the tongue of the trigger actuator provided for transmitting the manual pull force applied to the trigger to the pump piston. The latch has a spring-biased clamp engaging the tongue for removably securing the latch in place.

Abstract: An assembly including a pump attachment particularly adapted to form an nonaerosol pump sprayer, and a method of using the same. The apparatus desirably includes an attachment having a pump sprayer which is pressurized on the upstroke enabling the sprayer to be shipped and stored in a relaxed position. The attachment includes a body, a coupling, a shaft, a piston, an inlet valve and a biasing member. The body defines an elongate chamber having the first end, second end, and an interior wall extending between the first end and second end. The coupler is sized and shaped to secure the body to the neck of a container. The shaft extends through the opening in the first end of the chamber and defines an internal flow channel. The piston is reciprocally mounted within the chamber and includes an inner annular surface surrounding the shaft and an outer annular surface sized and shaped to form a sealing engagement with the interior wall of the body.