Abstract: The application relates to a dispensing device (1) containing at least one chamber (5, 5?) for receiving a fluid (B, B?), a plunger unit (6) including at least one piston (7, 7?), locking mechanism and counter-locking mechanism as well as a catching mechanism and counter-catching mechanism. The locking mechanism and the counter-locking mechanism can be brought into a locking position (L), in which a movement of the plunger unit (6) in one or both directions is substantially prevented. The catching mechanism and the counter-catching mechanism can be brought into an engagement position (E), in which the locking mechanism and the counter-locking mechanism cannot be brought into the locking position (L). Furthermore, the application relates to a kit (19) containing the dispensing device (1) and to a method of operating the device (1) or kit (19).

Abstract: The invention relates to an actuator for dispensing fluid from a cartridge, the actuator being configured to be moveable within the cartridge along the longitudinal axis of the cartridge and comprising a first radial element configured to face the dispensing opening of the cartridge, a second radial element configured to face in the opposite direction than the first radial element and a connecting element connecting the first and the second radial element and configured to extend along the longitudinal axis of the cartridge.

Abstract: A vented piston (1) comprises a plunger (2) having a front side and a rear side, a venting passage (4) extending between the front side and the rear side, and a cap (7) located adjacent the front side. The cap is resiliently-biased by a spring (8) towards an open position in which air can pass through the venting passage from the front to the rear side of the plunger, and is movable from the open position into a closed position in which the cap closes the venting passage. The piston may be used in a storage chamber (10) of a dispensing system whereby air can be removed from the storage chamber by moving the plunger in the direction of a substance (12) stored in the chamber.

Abstract: A cartridge-type dispenser has a cartridge main body with a filling space, an extrusion nozzle on the front, and a piston slidably disposed in the filling space. The piston extrudes contents of the filling space from the extrusion nozzle by applying a push-in force. The piston includes a trunk portion having an outer circumferential wall running along an inner wall of the main body with a gap therebetween, a front wall on one end of the trunk portion directly contacting the contents of the filling space, and a rear wall on the other end whereon a rod of a push-in tool applies the push-in force on the piston. On the outer circumferential wall of the trunk portion, protrusions are provided, which contact the inner circumferential wall of the main body. The points of contact form sliding parts of the piston but do not seal the main body interior.

Abstract: The invention relates to a dispensing device (11) for containers (33) containing a compound, comprising a compartment (12) for the container, with a piston rod (13) that can be moved relative to the compartment (12), with an extruding device (16) that comprises a drive wheel (21) for advancing the piston rod (13), a motor (22) for driving the drive wheel (21) as well as a planetary gear (23) that is interposed between the drive wheel (21) and the motor (22) and that has a gear rotational axis (24) and a ring gear (25). The ring gear (25) is provided with multiple recesses that are located along its circumference at intervals from each other. Moreover, the dispensing device (11) has an actuating switch (31) for actuating the motor (22) and a blocking element (36) that can be moved from a blocking position that blocks the ring gear (25) into a releasing position that releases this ring gear (25).

Abstract: A displacement syringe having a housing with a distal tip and a proximal end; a moveable outer plunger within the housing having an elongated passageway; at least one moveable inner plunger within the passageway of the outer plunger; at least one first seal between the outer plunger and the housing; and at least one second seal between the inner plunger and the outer plunger is disclosed herein. The syringe may have a lock at the proximal end of the housing and/or a valve at the distal tip of the housing. The syringe may also have a plurality of inner plungers of various diameters. A transfer system and delivery system are also disclosed herein. Methods to accurately and efficiently deliver small volumes using the displacement syringe are also disclosed.

Abstract: A container with movable platform comprising: a tubular body, where the tubular body extends between a top at an uppermost portion and a base at a lowermost portion; a lid fastened to the top, where the lid prevents a food product within the tubular body from spilling over the top; and a movable platform engaged within the tubular body, where the movable platform pushes up within the tubular body to continuously provide a user access to the food product as the food product is consumed through the top. To use the container with movable platform the user fills the tubular body with the movable platform with the food product, and pushes a bottom surface of the movable platform to move the movable platform up; wherein as the movable platform lifts the food product also pushes up within the tubular body.

Abstract: Disclosed herein is an apparatus for storing and dispensing a product and methods of making the apparatus and methods of assembling the apparatus. In one embodiment is a latch system for a two-component, side-by-side cartridge apparatus in which each cartridge is sealed by a compatibly configured piston. Traversal of the piston over the latch forms a sealed filling end.

Abstract: A cartridge for a flowable material, e.g. caulking compounds, sealants and adhesives, includes a tubular container, an end plate disposed at a first end to a tubular container, a nozzle extending from the end plate, a plunger received in the tubular container, and a barb extending inwardly from the tubular container. The end plate includes an opening. The nozzle is in communication with the opening. The barb is configured to limit movement of the plunger in a first axial direction. A method for packaging a flowable material includes introducing flowable material into a tubular container, inserting a plunger into the container, and deforming the tubular container at a location axially spaced from an end of the container at a location axially spaced from an end of the container to create a mechanical stop.

Abstract: A medicament dispensing device has a case with an upper portion, a lower portion, and a central portion. The device also has a plunger made up of a head and a stem. The head of the plunger is configured to contact a cartridge containing medicament that is receivable within the central portion of the case. The device also has a dosing assembly coupled to the stem and disposed partially within the case. The dosing assembly is selectively inhibited by a control system that limits the displacement of the dosing assembly and plunger within the case. The device also has a customizable dispensing assembly coupled to the upper portion and configured to receive medicament from the cartridge upon application of force from the plunger.

Abstract: An electric or battery powered dispenser comprising a multi-mode motor control system comprising a plurality of different user selected dispensing control modes for dispensing a wide variety of semi-soft materials. The powered dispenser is held in one hand and dispenses the material in accordance with a user selected one of the plurality of different user selected dispensing control modes. The powered dispenser features a quick-change cartridge system, which allows the user to quickly and easily change cartridges, which can be refilled or pre-filled with the material of the user's choice, without having to clean out the barrel. The dispenser can be used in many applications such as cake decorating, craft applications, woodworking, and construction.

Abstract: An apparatus for dispensing material is provided having a body portion and housing for supporting cartridges filled with materials for dispensing. The housing includes a dispensing end, an attachment end, and an elongated opening for receiving the cartridges. The apparatus further comprises an attachment assembly located at an end of the body portion for attaching the housing to the body portion. The attachment assembly includes a first set of threads located about the perimeter of the attachment assembly. A second set of threads are located about the perimeter of the attachment end of the housing for engaging the first set of threads, forming a threaded connection and attaching the housing to the body portion.

Abstract: A container (100) for storing a sensitive or aggressive product is disclosed. The container comprises a hollow basic body (110) made of natural glass. A plunger (120) is arranged displaceably in the interior of the basic body. In order to seal the container so as to be diffusion-proof, the basic body is sealed at a distal out-let opening (111) and at a proximal actuating opening (113) by respective seals which can be removed and/or severed and are sealed in a materially bonded manner onto a supporting surface surrounding the particular opening. The seals can be sealed, in particular inductively, onto the respective supporting surfaces.

Abstract: A device for delivering fluid, having an elongated outer casing (10) provided with a substantially cylindrical inner chamber (11); an inner cartridge (20), for insertion into the inner chamber (11) and including a plunger (21) movable axially along a longitudinal axis A-A of an inner reservoir (22) towards an outlet (28). The device also includes a coil assembly (12, 23, 24) having an outer coil (12), an inner coil (23) and an inner coil core (24). The outer coil (12) is provided on the outer casing (10) and axially oriented along the chamber longitudinal axis. And, the inner coil (23) is provided in the inner cartridge (20) attached to the movable plunger (21). The invention also relates to the corresponding method for delivering fluid.

Abstract: A container includes a housing, a container body mounted in the housing and having an inner portion provided with a receiving chamber and a pusher movably mounted in the receiving chamber and having a surface provided with an outlet hole connected to the receiving chamber. The receiving chamber has a bottom wall provided with a stop portion. The pusher has a bottom wall provided with a pressing portion that is movable to closely abut the stop portion. Thus, the pressing portion can be moved to closely abut the stop portion so as to completely squeeze the cosmetic filling outwardly from the outlet hole and to prevent part of the cosmetic filling from being left in the receiving chamber so that the user can use the cosmetic filling to the maximum extent.

Abstract: [Problems] To fill a container with a material without applying a high pressure to the material that is to be filled. [Means for Solution] An ejection device 1 comprises a filling chamber 24 formed in a cylindrical member for containing a material to be filled, a discharge portion 7 having a discharge nozzle 12 for pouring out the filled material to the exterior, and a piston 4 that pushes the filled material toward the front end side of the filling chamber 24 to discharge the filled material through the discharge nozzle 12. In the ejection device 1, the discharge portion 7 is formed separately from the filling chamber 24 and in a manner to be fitted to an opening on one end side of the cylindrical member 24, the opening serving as a filling port for filling the material to be filled, and after the material to be filled is poured into the filling chamber 24 through the filling port, the discharge portion 7 is coupled to the filling chamber 24.

Abstract: A package (10) for storing and dispensing a flowable material includes a container body (11) having an inlet end (20) and an outlet end (21). The container body (11) is configured to hold a quantity of the material and has a piston (30) receivable within the inlet end (20) and movable within the container body (11, 12). At least a portion of the piston (30) is selectively permeable to a selected medium.

Abstract: A cartridge contains a storage chamber for a fluid filler material in which a piston can be movably received, wherein the storage chamber has a filling end and a discharge end and an inner wall extending between the filling end and the discharge end and the piston is displaceable in the storage chamber from the filling end to the discharge end along the inner wall to discharge the filler material from the storage chamber and the filler material can be enclosed in a sealing manner in the storage chamber by the piston. The piston is captively held within the inner wall by a projection provided at the inner wall in the environment of the filling end.

Abstract: A fluid dispenser comprising: a fluid reservoir (1) including an opening (11); and a dispenser head (2) including a fastener ring (33) for coming into engagement with the opening (11); the ring (33) and the opening (11) forming leaktight final assembly means (12, 34), making it possible to fasten the dispenser head (2) in a final assembled position, in stable and leaktight manner in the opening (11) of the reservoir; said dispenser being characterized in that the ring (33) and the opening (11) further form provisional pre-assembly means (13, 34) making it possible to fasten the dispenser head (2) in a provisional pre-assembled position, in provisional and non-leaktight manner in the opening of the reservoir.

Abstract: A fluid dispensing device includes a pressurizing device coupled between a fluid bottle and a discharge tube for forcing the fluid to flow through the discharge tube without gravity, the pressurizing device includes a container having an inclined inner peripheral surface, and a piston slidably received in the container and having an outer peripheral portion for selectively engaging with the inclined inner peripheral surface of the container in order to pump the fluid into the discharge tube when the piston is moved toward the discharge tube with a coil, and for being selectively disengaged from the inner peripheral surface of the container when the piston is moved away from the discharge tube.

Abstract: A discharge device for liquid media having housing sections movable relative to one another along a total stroke between a non-actuated rest position and an actuated end position and together forming a manual actuating device. A media reservoir stores the medium prior to discharge, and a conveying device includes a discharge opening and a dosage chamber. The actuating and conveying devices are operatively coupled such that during a first partial stroke of the discharge actuation starting from the rest position the media reservoir and the dosage chamber are in communicating connection and during a second partial stroke of the discharge actuation following the first partial stroke the media reservoir and the dosage chamber are separated, the volume of the dosage chamber and the media reservoir being reduced by the second partial stroke of the discharge actuation.

Abstract: An apparatus for mixing and distributing sauce is disclosed. The apparatus may include a mixing-pump device coupled a linear arm for distributing sauce over a rotating turntable. The turntable may include an improved gripping device for coupling to a pan. The apparatus may also include a self-expelling concentrated sauce vat which couples to the mixing-pump device. The apparatus may also include a self-expelling concentrated sauce cassette which couples to the mixing-pump device.

Abstract: The caulking gun comprises a cartridge holder (12) for accommodating a cartridge (25). For pressing out the substance contained in the cartridge (25), use is made of a piston (30) which is advanced by a pressure disk (16). The pressure disk (16) can be radially expanded under the influence of the advancement force and thus will press by a spreading edge (49) against the side wall (31) of the piston (30). In this manner, the piston in the region of its side wall (31) is tightly pressed against the cartridge wall. Leakage of substance past the piston (30) is prevented.

Abstract: An upstanding cylinder and a loading lid are produced respectively from glass. On the upper face of the bottom plate of the cylinder, a substance-pooling concave in which wine lees and tartar are pooled is formed. Owing to this constitution, there is little risk that the external air enters through a gap between the sliding faces of these members into the wine-pooling section in the cylinder and causes the oxidation of the wine. Since the cylinder comprises glass, the wine can be stored under almost the same conditions as in bottles. Further, sanitary precautions can be easily taken. Furthermore, problems such as the sticking of the cylinder to the loading lid due to stainless steel rust and so on can be overcome.

Abstract: A plunger for a syringe used to inject gas and liquid chromatography samples has an end portion surrounded by a flexible sleeve. The sleeve forms a seal in the bore of a barrel traversed by the plunger, the bore being in fluid communication with a cannula attached to the end of the barrel. The plunger has an end surface that is exposed and is flush with an annular end surface of the sleeve. The plunger end surface, and not the sleeve, contacts the cannula upon injection and avoids imposing cyclical hoop stresses on the barrel which tend to crack the barrel after a finite number of cycles. In a further embodiment, a thin layer of sleeve material covers the end surface of the plunger. The thin layer avoids inducing significant barrel stress.

Abstract: A dispensing device having a housing capable of receiving a pre-packaged charge of pre-whipped topping or icing. The housing has an inner wall with a slot formed therein for receiving a rack that is capable of rotational and translational motion within the slot. The rack has a set of gear teeth that engage with a catch on a plunger. The piston moves in the axial direction to force the pre-whipped topping or icing through the outlet in its packaging. The catch on the piston is locked in one direction and pivots in the opposite direction such that the rack engages with the piston when it moves in a first direction and the rack disengages with the piston when it is moved in a second direction opposite the first direction.

Abstract: A syringe for holding fluids susceptible to void formation when frozen and thawed before use. The interior surface of the syringe sidewall may be roughened, which serves to prevent or significantly reduce the incidence of void formation in the fluid. The required level of surface roughening for counteracting void formation may be reduced by increasing the sidewall flexibility. Alternatively, the flexibility of the syringe sidewall may operate over certain thickness ranges to prevent or significantly reduce void formation in the fluid without intentionally roughening the interior surface.

Abstract: An adapter for a dispensing device is adapted to couple an actuator to a syringe including an elongate body and a flange. The adapter includes a housing including a proximal end wall, a distal end wall, and a side wall. The adapter includes first and second slots extending inwardly from the side wall, each slot defining at least one of differing shapes and differing sizes. The first and second slots may be at least partially coextensive or may be separated by a divider wall. The first and second slots may be shaped to couple with circular flanges, flanges with flats, or flanges including finger grip portions. Thus, the adapter may couple various syringes to the actuator.

Abstract: The invention relates to a cosmetic container including a piston in which content contained in the container always reaches a content inlet of an airless discharge pump as the piston rises upward along and on an inner wall of the container with operation of the airless discharge pump. More specifically, the invention relates to such a cosmetic container in which content amount remaining in the container is indicated in association with the rising movement of the piston. A cosmetic container according to the invention includes a container body; an airless discharge pump installed to the container body; a piston installed in the container body so that a topmost level of content contained in the container body reaches a content inlet of the airless discharge pump as the piston moves upward along and on an inner wall of the container body with operation of the airless discharge pump; and an indicator indicating content amount remaining in the container body in association with rising movement of the piston.

Abstract: An apparatus for delivering a fluid includes a housing, an inlet in the housing for receiving the fluid, and an outlet in the housing for discharging the fluid. A piston channel is provided within the housing through which the fluid flows from the inlet to the outlet. An actuator is positioned within the housing and is moveable between a retracted position and a forward position, the actuator defining a piston chamber for storing fluid received through the inlet when the actuator is in the retracted position and for driving the fluid stored in the piston chamber toward the outlet when the actuator transitions from the retracted position to the forward position. The actuator includes an armature and a piston coupled to the armature and moveable within the piston channel. The piston is provided with a groove in an outer surface for conducting fluid from the inlet to the outlet.

Abstract: An exemplary feed copper, configured for introducing plastic granules into a heating cylinder of an injection molding machine, includes a feed duct, a guiding duct communicated with the feed duct, and a sleeve. The sleeve movably wraps around the guiding duct, and have a lateral through hole for conforming with the lateral opening, such that the plastic granules can be accessible via the guiding duct when the lateral through hole is aligned with the lateral opening.

Abstract: The present disclosure relates to, inter alia, stable aqueous solutions comprising a high concentration of an antibody that binds to human complement component C5 and methods for preparing the solutions. The disclosure also provides methods for treating or preventing complement-associated disorders (for example, age-related macular degeneration or rheumatoid arthritis) using the solutions. Also featured are therapeutic kits containing one or more of the solutions and a means for administering the solutions to a patient in need such a treatment.

Abstract: A device for dispensing a dental material comprises a plunger for extruding a component of the dental material, and a motor for driving the plunger. The device has two electric circuits for powering the motor to drive the plunger forward or backward. A selector switch is arranged in the device for alternately selecting between the first electric circuit and the second electric circuit for powering the motor. The device further has switches for interrupting the first and/or second electric circuits when the plunger is positioned at certain positions. The device provides automatic functionality for facilitating dispensing of dental materials, and further is preferably relatively robust and relatively inexpensive to manufacture.

Abstract: A barrier piston with an integrated seal for use with aerosol containers is disclosed. The barrier piston includes a piston body with flow channels disposed on the surface thereof. Stabilizers of a low durometer material are provided on the flow channels to prevent tilting and binding of the piston body within a container. A seal also of a low durometer material is disposed on the base of the piston body to ensure separation of the product and propellant.

Abstract: An apparatus for dispensing ice cream includes a seating for a container and a plunger for extruding product from the container. An actuator controls movement of the plunger between retracted and extended positions. An output member of the actuator moves from an extended position to a retracted position to drive the plunger to its extended position, for a dispensing operation. The output member is arranged for upward movement to move the plunger to its retracted position. The output member and plunger have respective axes of movement which are off set from one another, one behind the other. The actuator is arranged in a housing and the plunger is located at a height generally above the actuator.

Abstract: A container and dispensing method for mixing and dispensing a set of ingredients. The container includes a tube having a dispensing end and a filling end, the filling end being sealed by a first plunger. The container includes a second plunger between the dispensing end and the first plunger that separate the interior into a first cavity and a second cavity, each cavity holding at least one ingredient. The second plunger includes a breakable membrane portion. A mixing apparatus is inserted through the dispensing end, pierces the membrane portion, and urges the second plunger towards the first plunger, causing the ingredients between the plungers to flow through the pierced membrane portion and combine. The mixing apparatus feature expandable flanges, and may be driven with a rotating force to mix the combined ingredients within the tube. The first plunger is then used to dispense the mixture through the dispensing end.

Abstract: The invention relates to a dispensing device for dispensing a cosmetic liquid, the device having an elastic or flexible pump section. A dispensing device is provided having a compact and simple structure that is easy to use and operate such that the dispensing direction is generally different from the direction of actuation. A widening receiving area may be provided for the dispensed liquid that adjoins the outlet such that the liquid can be removed or extracted manually. The receiving area is preferably shell-shaped and open towards the top.

Abstract: The present invention relates to a grout dispensing system comprising: a suction mechanism that draws grout material into an elongated tube; a dispensing channel attached to a first end of the elongated tube; a suction handle extending through the elongated tube, where the suction handle draws grout into the tube when moved in a first direction and dispenses grout into the dispensing channel when moved in a second direction; a plurality of dispensing tips disposed below the dispensing channel; and a squeegee on one side of the dispensing channel. In one exemplary embodiment, the suction mechanism includes a suction cup at one end of the suction handle, where said suction cup is within said elongated tube; a suction opening at a lower end of the elongated tube; and a suction tube extending from the suction opening. The distal end of suction tube lies in a deposit of grout.

Abstract: A food storage container with emptying mechanism is described. The emptying mechanism includes a platform that may be raised within the container to advance food product toward the container opening. The platform is raised by actuation of a turn wheel at the bottom outer surface of the container. Existing containers may be retrofitted to incorporate the emptying mechanism.

Abstract: Pistons for use in a dispensing cartridge, as well as cartridge systems including such pistons. The piston may include a body having a generally cylindrical configuration with a sidewall and a sealing lip extending outwardly from the sidewall. The sealing lip has a first portion dimensioned to have a first flexibility, a second portion dimensioned to have a second flexibility greater than the first flexibility, a sealing edge terminating the second portion, and a sealing bead positioned between the first portion and the sealing edge of the second portion, and the second portion configured to deflect relative to the first portion such that the sealing edge and the sealing bead have a contacting relationship with an inner wall of the cartridge when the piston is inserted into the cartridge. The sealing edge and sealing bead cooperate to prevent leakage during storage and to prevent blow-by during use.

Abstract: The invention provides body absorable, mechanically hemostatic putty compositions comprising carboxymethyl cellulose and one or more of polyhydroxy compounds, fatty acids, and esters thereof for use in controlling the bleeding of bone.

Abstract: A material dispensing pump includes a drip prevention system and method so as to avoid undesired dripping of the dispensed fluid. In one example, the fluid path is sealed. Positive pressure is applied to the fluid during a dispensing operation to present the fluid to the auger-style pump at a desired rate. Between dispensing operations, or when dispensing is completed, the fluid is placed in suspension, for example by applying a negative pressure, thereby preventing the fluid from being inadvertently released at the dispense tip. In addition, following a dispensing operation, the pump dispensing controller can be programmed to reverse the rotation of the feed screw, in order to draw the material in a reverse direction and to further suspend the fluid.

Abstract: A dispenser is provided for the delivery of controlled, metered amounts of any of numerous different substances to humans or animals, such as medicaments, pharmaceuticals, cosmetics, and food products, or to deliver materials that may react upon exposure to air, such as glue. Means are provided in the dispenser to effect controlled delivery of a pre-determined amount of the substance contained in the dispenser. A one-way valve is provided to hermetically seal the portion of the dispenser containing the substance to be dispensed.

Abstract: A syringe-type container comprising a hollow main body with a distal outlet opening and a proximal actuation opening for inserting an actuation element. A piston is displaceably arranged inside the main body for discharging a flowable product from the container. To reduce the permeability of the container, the main body has a diffusion-reducing layer. The outlet opening is closed with a first removable or severable seal, and the actuation opening is closed with a second seal.

Abstract: A dispenser for combining a number of ingredients. The dispenser may include a laminated container with one of the number of ingredients therein and a pump in communication with the laminated container.

Abstract: A dispensing container (400) for storing and dispensing liquid and/or semi-solid foods that has a hollow body (3), a base (4), a piston (405) with a passage (6) through it and a tube (52). The tube (52) is releasably secured to the piston (405) for movement with it and in fluid communication with the passage (6). The piston (405) is slidably received within the body (3) and movable along it toward the base (4) to dispense through the tube (52) a liquid and/or semi-solid food from the container (400).

Abstract: The invention provides a cartridge for squeezing-out a cartridge content, like a cement, preferably a medical cement, having a one cylindrical hollow space bordered by a cartridge wall, at least one feed plunger arranged in the hollow space to be mobile along the cylinder axis of the hollow space and abuts on the cartridge wall, and at least one snap-in means for locking the feed plunger in place at the cartridge wall, whereby at least one locking device is arranged on the feed plunger and comprises at least one of the snap-in means and which is accessible from outside when the feed plunger is locked. The invention also provides a cartridge system with a cartridge for squeezing out content and a method for dispensing such cartridge content, preferably a cement, through the use of a cartridge of said type.

Abstract: A powered dispensing tool includes a housing, a motor, a rack operably coupled to the motor for powered translation along a longitudinal axis in at least one of a forward direction and a reverse direction, a transmission housing at least partially positioned within the housing through which the rack is extendable, first and second plungers, at least one of which is coupled to one end of the rack, and a first cartridge housing within which first and second material cartridges may be supported in a side-by-side relationship. The first and second plungers are associated with the first and second material cartridges, respectively. The tool also includes a second cartridge housing within which only a single material cartridge may be supported. The first and second cartridge housings are interchangeably coupled to the transmission housing to adapt the tool for use with dual material cartridges or single material cartridges.

Abstract: A powered dispensing tool includes a housing, a motor positioned within the housing, a rack coupled to the motor for powered translation in at least one of a forward direction and a reverse direction, and a transmission selectively coupling the motor and the rack. The transmission includes an input ring rotatable in response to rotation of the motor in a first direction corresponding with powered translation of the rack in the forward direction, a first clutch member engaged with the rack through an intermediate gear, and a second clutch member that receives torque from the input ring and that is movable in response to rotation of the motor in the first direction toward a first position engaging the first clutch member. The second clutch member is also movable in response to rotation of the motor in an opposite, second direction toward a second position disengaged from the first clutch member.

Abstract: A pump comprising a container containing a dispense material, an outlet and an actuator arranged to alternate between a first and a second configuration in response to a change in the pump's environment, which change in configuration causes an aliquot of dispense material to be expelled through the outlet.