Abstract: The present invention relates to an apparatus for providing specifically metered doses of at least two flowable dental materials in desired ratios to one another. In particular, the present invention allows for controlled metering and dispensing of two or more flowable dental substances which when subsequently mixed form a dental bonding composition, dental adhesive, dental cement, or other dental restorative or preparative materials. Specifically, one embodiment of the present invention utilizes a multi-rack system as well as a drive spring action to provide a substantial mechanical advantage to the user such that a relatively long throw of the dispensing button creates a relatively short, metered distance of movement of the multiple racks and corresponding pistons in the each lumen of a cartridge containing the component of the desired dental composition, allowing for small, metered doses of each flowable dental component to be dispensed from the apparatus in the proper proportions.

Abstract: A single dose dual fluid cartridge for use with a hand-held applicator is disclosed. With the disclosed dual fluid cartridge, a hand-held applicator may be used to dispense and mix two component end products (e.g. an adhesive). Such an ability to dispense a single dose of a two component end product is especially useful in the dental field.

Abstract: The present invention discloses an extrusion apparatus for high viscosity liquid to address the problems that the existing extrusion apparatus tends to be abraded for long-time use and the high viscosity liquid could not be well extruded. The extrusion apparatus for high viscosity liquid of the invention comprises a gun body, a retainer fixedly connected to the gun body, a push rod slidably running through the gun body, a wrench hinged to the gun body and a handle connected to the gun body, characterized in that, a push block is hinged to one end of the wrench adjacent to the push rod, the push rod has a rod body provided with several teeth on the side facing the push block, a push tooth is provided on the push block, a permanent magnet is placed on the push block or the push rod, and the push tooth could be snapped to the teeth under action of the magnetic force of the permanent magnet.

Abstract: A caulking gun cartridge caddy has back to back cartridge clamps which surround a portion of the circumference of two caulking gun cartridges, holding them in parallel juxtaposition whereby one cartridge is held in readiness for replacing another while the latter is in use. The caddy holds the cartridges oriented in opposite directions to minimize interference by the spare cartridge with using the caulking gun. The caddy may include means on its side for also holding a smoothing tool commonly needed by users to smooth a bead of the fill material after it has been distributed from the cartridge nozzle.

Abstract: An apparatus and method for transferring curable material to an injector to convenient deliver the curable material to a patient. The apparatus contains a mixing chamber for mixing a liquid component and a powder component to form a curable material. The curable material is transferred to an injector to when the mixing chamber and injector are moved toward each other.

Abstract: An apparatus that includes two syringes, or a “double barrel syringe,” includes one syringe that injects or infuses while the other syringe aspirates. The double barrel syringe is a hand-held, hand-operated device with which injection and aspiration may be effected by a single action. The double barrel syringe may include a handle with two member. A first member includes one arm that pivotally couples to a plunger of a first syringe and another arm that pivotally couples to a barrel of a second syringe. A second member of the handle includes one arm that pivotally couples to a barrel of the first syringe and another arm that pivotally couples to a plunger of the second syringe. Methods for injecting or infusing simultaneously with aspirating are also disclosed.

Abstract: The present invention generally relates to a delivery system for dispensing product(s). More particularly, the present invention relates to a delivery system for dispensing product wherein the system has a dispensing mechanism that prevents oozing out of the product after dispensing occurs. The delivery system comprises a body having at least one cavity for housing the product(s) and a plunger or a piston and rod assembly and a means for actuating the piston assembly wherein the piston assembly has a mechanism of dispensing which has an effective suck back effect.

Abstract: There is provided herein a reusable dispensing apparatus (100) comprising a locking member (120) which is capable of securely attaching a nozzle (118) to a substantially rigid outer casing (102) allowing easy and clean removal of a dispensed cartridge.

Abstract: An applicator assembly for mixing, homogenizing and/or emulsifying two or more components is disclosed. The applicator assembly includes a housing configured to receive a motor and a power source, a fluid supply source operably connected to the housing, the fluid supply sources including at least a first and a second source of solution, and a nozzle assembly extending from the housing and in fluid communication with the fluid supply source, the nozzle assembly including a smooth impeller for mixing the at least first and second solutions.

Abstract: The invention relates to an applicator for the application of liquid or pasty media, containing a housing for receiving a dosing unit and an adapter for fastening a container, for the medium to be applied, to the applicator; a dose setting means; a lever for the application of the apportioned amount, the lever interacting mechanically with the dosing unit and with the dose setting means. The lever is mounted moveably at its proximal end within the housing. The distal end of the lever spreads apart from the housing, with the distance of the distal end of the lever from the housing being dependent on the dose set.

Abstract: An articulated driving mechanism (2) is composed of several inflexible links (1, 1?, 1?, 79, 84) in succession, the links of each pair of adjacent links being interconnected by means of a link pin (16, 16?, 16?), arranged in both the adjacent links in such a manner that the links are pivotal in relation to one another about the axis of the pin. The links of each pair of adjacent links are mutually displaceable in the transverse direction of the link pin between a first position, in which the adjacent links are pivotal in relation to one another about the axis of the link pin, and a second position, in which corresponding meshing surfaces of each adjacent link abut one another and lock against mutual pivoting of the adjacent links. The link pin is displaceable in an elongated hole (23, 82, 89) in at least one of the links.

Abstract: A machine for producing ice cream shop products comprises a whipping and freezing unit (2) with a horizontal axis (A) and a removable head (10) forming an end wall (11) of the whipping and freezing unit (2), there being in the wall (11) an inlet (12) for ingredients intended to constitute the ice cream shop products, and an outlet (13) for the ice cream shop product prepared.

Abstract: A cartridge gun is provided. The cartridge gun comprises a cartridge holder, a plurality of resilient gripping elements, a displaceable piston rod for moving a piston in a cartridge, and an actuating device for displacing the piston rod. The cartridge holder comprises a cylindrical base for receiving the floor region of the cartridge in which the gripping elements project radially outwardly from the center of the cartridge holder in the direction towards the housing into an annular groove of the base up to the outside wall of the annular groove in the base and are held in the center of the base by means of a hub. Means are further arranged at the front end of the piston rod which are designated to press the ends of the resilient gripping elements in the direction towards the housing when the piston rod is fully retracted, allowing the removal of the cartridge from the cartridge gun.

Abstract: A dosing device includes a dosing casing in one or more parts and with which are associated a pumping unit and a manually operable actuating unit, in which the dosing casing includes at least one dosing opening. The dosing casing has a jacket enveloping the pumping unit and on which is integrally shaped at least one actuating member mounted in elastically pivotable manner between a rest position and an actuating position.

Abstract: An ejection device (11) for containers containing compounds has a receiving chamber (12) for the container, a piston rod (13) which is displaceable relative to the receiving chamber (12), and an ejection unit (16) having a housing (17), a forward feed element (18) which is pivotally supported in the housing (17) for advancing the piston rod (13), and a handle (19) with an actuation lever (21) which is pivotal around an axis of rotation (22) and which has an effort arm (25) with a hand grip and a load arm (24). Pressure transmission means (23) is provided at the end of the load arm (24) facing the forward feed element (18) and can be brought into contact with the forward feed element for actuating the forward feed element (18).

Abstract: The present invention is generally directed to various structures for applying a sealant to a work surface. In one aspect of the invention, a sealant applicator assembly is provided for use with an apparatus of the type having an elongated body defining an interior bore and having a piston movably positioned in the bore and a pusher member operatively associated with the piston. The assembly comprises a spray adaptor adapted to communicate with the bore of the body and defining a distal outlet. A first gas passageway is cooperatively associated with the distal outlet and configured to direct gas to create a spray discharge of the sealant. An actuating member is adapted to be cooperative associated with a pusher member to eject sealant through the distal outlet and is operative to simultaneously actuate a supply of gas to the first gas passageway for creating a spray discharge of sealant.

Abstract: A dispensing apparatus provides for the dispensing of product from a collapsible tube. The apparatus includes a body for supporting the tube. The body has a forward end for accommodating a dispensing end of the tube and rearward end for accommodating a closed end of the tube. An elongate actuatable plunger is supported by the body. The plunger includes an elongate rod and a base attached to the rod. Actuating means is provided for effecting movement of the plunger in a first direction along the body for engagement with the collapsible tube wall thereby deforming the tube wall and dispensing the contents of the tube from the dispensing end. The actuating means also provides for retractable movement of the plunger in the second direction opposite the first direction. The base is positioned on the rod for dispensing engagement with the tube upon movement of the plunger in the first direction and movable out of dispensing engagement with the tube upon in a second direction.

Abstract: A dispenser for food material that facilitates spreading of the material is disclosed. The dispenser can comprise a unitary construction, or can be composed of a plurality of components that can be fastened together. Disposable cartridges containing food material can be attached to the dispense, and the material within can be dispensed into a utensil such as a spoon for serving. The dispense provides metered dispensing.

Abstract: The present invention is related to a dispensing device. The dispensing device includes a container; a dispensing opening located at one end of the container; a plunger located inside the container; a push button associated with the plunger; and a drive mechanism configured to drive the plunger linearly inside the container from a first position towards the dispensing opening when the push button is pressed and to hold the plunger at a second position, wherein the second position is closer to the dispensing opening than the first position.

Abstract: A cannula for dispensing fluid products for vaginal and anal applications comprising an inner tubular body for containing a fluid product, which is provided, at a first end, with an outlet for dispensing the product and, at a second end that lies opposite the first end, with a grip, at least one rectilinear longitudinal slot that is formed on the lateral surface of the inner tubular body, an outer tubular body, which is open at its two opposite ends and is fitted substantially coaxially over the inner tubular body and is associated therewith a rotary coupling, a helical guide formed on the inner lateral surface of the outer tubular body, a plunger, which is accommodated in the inner tubular body, with which it is associated so that it can slide axially, and is provided with at least one pin, which is inserted so that it can slide within the rectilinear longitudinal slot and is provided with an end that extends beyond the rectilinear longitudinal slot and couples to the helical guide, and removable elements fo

Abstract: Disclosed is a device for extracting paste contents. The device includes a storing unit for individually storing at least one paste content therein in order to extract the paste content to an exterior and a pushing unit for pushing the paste content stored in the storing unit. The pushing unit is detachably coupled with the storing unit. The storing unit is formed at an inner portion thereof with at least one storing cavity for individually storing the paste content. An exhaust port is formed at a front end of the storing cavity in order to exhaust the paste content and an injection port is formed at a rear end of the storing cavity for injecting the paste content into the storing cavity. Thus, paste contents, such as toothpaste, are easily extracted from the device. A connector is coupled to a paste content exhaust section of the device.

Abstract: The present invention provides a clay extruder having a reinforced plunger for shaping clay into desired patterns having a hollow core. The extruder has a screw disposed within a sleeve, a reinforced plunger located on the screw and inside the sleeve, a handle located on the screw and outside of the sleeve, an adaptor disk for forming a hollow core, and a perforated extrusion disk opposite the insertion of the screw into the sleeve. As the plunger pushes clay out the sleeve, an o-ring around the plunger prevents clay from leaking back, and the adaptor disk for forming a hollow core and a perforated disk mold the clay into a desired pattern with a hollow core.

Abstract: The present invention provides a clay extruder having a reinforced plunger for shaping clay into desired patterns. The extruder has a screw disposed within a sleeve, a reinforced plunger located on the screw and inside the sleeve, a handle located on the screw and outside of the sleeve, and a perforated disk opposite the insertion of the screw into the sleeve. The handle is used to turn the screw and move the plunger through the sleeve. As the plunger pushes clay out the sleeve, an o-ring around the plunger prevents clay from leaking back, and a perforated disk molds the clay into a desired pattern. Metal construction and a thicker side of the plunger allow the extruder to be subjected to high amounts of torque and pressure without damage or failure.

Abstract: The invention relates to a structure of a glue gun, having a back cap disposed at the rear side of a containing body for glue tube, a grip with leveler connected to the outside of the containing body, at the top of the grip and leveler disposed a central rod penetrating through the back cap to the glue tube body.

Abstract: The present invention provides a clay extruder usable for shaping clay into desired patterns. The extruder has a screw disposed within a sleeve, a plunger located on the screw and inside the sleeve, a handle located on the screw and outside of the sleeve, and a perforated disk opposite the insertion of the screw into the sleeve. The handle is used to turn the screw and move the plunger through the sleeve. As the plunger pushes clay out the sleeve, an o-ring around the plunger prevents clay from leaking back, and a perforated disk molds the clay into a desired pattern. Metal construction allows the extruder to be subjected to high amounts of torque and pressure without damage or failure.

Abstract: A rod actuator particularly for a mastic gun comprises wear compensation and pressure relief. The wear compensation is effected by means of a biased catch plate. The catch plate is released from the rod in the actuator by means of a sleeve transmitting a releasing force applied to a brake plate through to the catch plate. The pressure relief is provided also by the sleeve riding on the rod such that when the trigger is released the rod is able to retreat by a limited amount defined by the movement of the release plate between a released and engaged relationship with the rod.

Abstract: A pair of sure-grip inserts formed as molded rubber sheathes for use in conjunction with a caulking gun having a downwardly protruding trigger that is retracted by hand to dispense caulk, and a downwardly protruding stationary handle to provide a hand grip for retracting the trigger. The trigger insert formed as an open-ended molded rubber sheath with a particular contoured shape and an internal channel conforming to the trigger for slidable insertion thereon. The handle insert is likewise formed as an open-ended molded rubber sheath conforming to the handle for slidable insertion thereon. The inserts are molded per a two-color double-injection-molding process to provide an aesthetically striking two-color appearance, and they are molded with a particular contoured design that conforms to the hand, thereby improving comfort during hard, extended use. The contour plus the use of soft-durometer thermoplastic rubber gives a high-coefficient of friction for a vastly improved grip under all (even wet) conditions.

Abstract: A filling head gun includes a housing; a handle assembly connected to the housing; a filling head attached to the housing; a plunger extends through an opening of the housing and an activator reservoir attached to the plunger, wherein the reservoir is moved into contact with the filling head via the plunger to manually feed activator through the filling head depressing a valve of the aerosol can.

Abstract: A dispensing device (11) for dispensing one-component or multi-component masses contained in vessels has a piston rod (21), a forward feed mechanism (31) which has a first clamping lever (32) and a second clamping lever (42) each of which is arranged on the piston rod (21) so as to be axially displaceable and swivelable in longitudinal direction (L) of the dispensing device (11), at least two spring elements (33, 43) acting upon the clamping levers (32, 42), and forward feed means for actuating the first clamping lever (32) and the second clamping lever (42) and including a first forward-feed element (34) cooperating with the first clamping lever (32) and a second forward-feed element (34) cooperating with the second clamping lever (42).

Abstract: A tool for dispending one- or multi-component masses contained in cartridges or foil bags includes at least one handle (4; 34; 54), at least one piston rod (5; 35; 55) a displacement mechanism (6; 56) for displacing the at least one piston rod (5; 35; 55) and having at least one displacement member (8) and a locking member (9) which are arranged on the at least one piston rod (5; 35; 55), are axially displaceable, and are pivotable in a longitudinal direction of the tool (1; 31; 51), and a force transmission device (21; 41; 61) acting on the displacement member (8) and having a switching element (22; 42; 62) arranged on the handle (4; 34; 54) and actuatable by an actuation member (12; 57) provided on the handle, and an actuator (24; 44; 64) for actuation of the at least one displacement member (8) and communicating with the switching element (24; 44; 64).

Abstract: An extruding mechanism includes a retaining base, a first handle provided for handling, a push rod pivotally coupled and having both ends extended out from a retaining base, a first resilient member and a first latch plate pivotally connected to a push rod in the retaining base; a poking member disposed on the retaining base; a second handle installed on the retaining base and having a driving arm at an end of the second handle, such that when the driving arm is turned clockwise or counterclockwise, the push rod can be shifted directly or indirectly by the first latch plate in the retaining base after being pressed by the poking member.

Abstract: To improve operativity, a pushing device for a tooth restoration material mixed and kneaded in a capsule comprises a compression coil spring 4 provided between a leak preventive cover 2 contacted with a capsule and having a cylindrical piston rod 1 inserted, and a ratchet body 3 having a rack part 3cb and fixed to the piston rod 1; a housing body 5 having a supporting path 5b inserted in the leak preventive cover 2 and a guiding path 5c provided with the ratchet body 3 movably; a ratchet body locking plate spring 6 for preventing move of the ratchet body 3; a lever 7 for moving the rack part 3cb and returning the lever body 7a to an initial position; a release body 8 for canceling the locking to the rack part 3cb; and a stopper means 9 for stopping the ratchet body 3 at the initial position.

Abstract: A dispensing gun for viscous material including a stock supporting a push rod which is advanceable along a keep in which a cartridge of a material can be mounted. The rod is advanced by means of a catch plate and a locking plate prevents the rod retreating with the catch plate. The locking plate is carried by the rod between a first and a second position so that it acts as a lost motion brake once force is removed from the trigger in one configuration of the dispensing gun, taking the dispensing force off the cartridge to prevent leaking when the trigger is not depressed. In an alternative configuration, the lost motion is reduced, for example to zero, to allow a continuous dispensing action by maintaining the pressure in the cartridge using a pumping action of the trigger.

Abstract: A dispensing gun discharges a viscous liquid material through a plurality of discharge openings in equal amounts simultaneously. A dividing member divides a passage for the viscous liquid material into a first holding chamber and a second holding chamber and has a communicating opening preferably aligned with the axis of the passage. A flow of the viscous liquid material squeezed from a pouch and deviated from the axis of the passage is held temporarily in the first holding chamber and is forced through a communication opening into the second holding chamber along the axis of the passage. And the viscous liquid material held in the second holding chamber is distributed evenly to the discharge openings.

Abstract: The present invention discloses an extrusion apparatus for high viscosity liquid to address the problems that the existing extrusion apparatus tends to be abraded for long-time use and the high viscosity liquid could not be well extruded. The extrusion apparatus for high viscosity liquid of the invention comprises a gun body, a retainer fixedly connected to the gun body, a push rod slidably running through the gun body, a wrench hinged to the gun body and a handle connected to the gun body, characterized in that, a push block is hinged to one end of the wrench adjacent to the push rod, the push rod has a rod body provided with several teeth on the side facing the push block, a push tooth is provided on the push block, a permanent magnet is placed on the push block or the push rod, and the push tooth could be snapped to the teeth under action of the magnetic force of the permanent magnet.

Abstract: To prevent accidental discharge from a cartridge, a dispenser for the dental viscous material comprises a guide shaft 1 having a cylindrical part 1ba at a front end thereof, a guide member 1b having a large diameter part 1bba and a small diameter part 1bbb on the rear side of the cylindrical part 1ba, and a knob for rotating the guide shaft 1h at a rear end, a slide block 2 having a release plate 2c, and piston shafts 2b, a housing 3 having pressing springs 3ea, which press piston shafts 2b, and a lever main body 4 having a lever part 4a rotatable by a predetermined angle from a position in parallel to the housing 3 and a pressing piece 4b projected under the front side of the lever part 4a, to constitute a mechanism of switching of discharge state and discharge release state.

Abstract: A dispenser for metered dosing of cream-based medicines comprising a barrel, a base having a threaded rod extending therefrom, a riser having at least one flexible seal which engages the barrel, an applicator cap having apertures therein for spreading dispensed cream onto a user's skin. The user positively knows when a metered amount of cream has been dispensed by tactile and audible feedback.

Abstract: A dispenser for metered dosing of cream-based medicines comprising a barrel, a base having a threaded rod extending therefrom, a riser having at least one flexible seal which engages the barrel, an applicator cap having apertures therein for spreading dispensed cream onto a user's skin. The user positively knows when a metered amount of cream has been dispensed by tactile and audible feedback.

Abstract: A caulking gun for dispensing caulking material from a standard caulk tube. The gun is fabricated in three basic parts; a trigger assembly, a trigger housing and a barrel cage for holding the tube. The facing portions of the barrel cage and trigger housing is provided with a mating configuration which enables the gun to be easily assembled for use and easily disassembled for storage in a toolbox. A novel drip/no drip feature is provided wherein a cam actuator conveniently positioned on the trigger housing enables an operator to select between no drip operation or drip type operation when caulking material and application requirements warrant such. A thumb release mechanism is provided on the rear of the trigger housing so the operator can release the driving rod for insertion of another tube of caulk when the unit has been placed in the drip position.

Abstract: Method and apparatus used for the molding and dispensing of frozen beverages are provided. The apparatus includes a body cavity having an inner surface for molding a frozen beverage, an open end for dispensing the frozen beverage, and a bottom end. The apparatus further includes a rotatable threaded rod axially arranged within the body cavity, a rotatable base in fixed connection with the threaded rod to facilitate rotation of the threaded rod. Additionally the apparatus includes a moveable support in contact with the threaded rod such that the support moves within the body cavity upon rotation of the threaded rod, and an attachable cap. The method involves filling a body cavity with an unfrozen beverage, freezing the unfrozen beverage within the body cavity to mold the frozen beverage; and twisting a threaded rod in a first direction to dispense the frozen beverage from the body cavity.

Abstract: A caulking gun apparatus is described. In one embodiment the caulking gun includes an electric motor axially coupled to a plurality of cams having uneven surfaces thereon. In one aspect, the uneven surfaces are in slidable contact with at least one driving lever slidably positioned on a piston shaft. The piston shaft includes a piston end that is configured to engage with a cartridge used to dispense fluids such as caulk. The uneven surfaces are arranged relative one another such that when rotated, two or more of the cams about evenly exchange power transmission from the motor to the piston shaft to provide about an even fluid flow from a dispensing end of the cartridge.

Abstract: A foodspread applicator that stores, measures, and applies foodspreads of the present invention preferably includes a main body having a front end and a rear end, a body tip attached to the front end of the main body, and a rear body attached to the rear end of the main body. The main body is suitable for receiving a foodspread therein. At least one outlet is preferably defined in the body tip through which the foodspread may be extruded. The rear body has a rear body longitudinal axis that is substantially parallel to a main body longitudinal axis of the main body. A plunger is movably located within the main body and the rear body for forcing the foodspread from the main body through the at least one outlet. A lever is longitudinally, pivotably attached to the rear body, the lever having a range of motion defined by the front end and the rear end of the rear body. The lever has a resting position within the range of motion at an angle less than 45 degrees from the rear body longitudinal axis.

Abstract: A caulking gun includes a gun body, a push rod, a push plate, an adjusting knob, and a piston lever. Thus, the adjusting knob is rotated to move away from the push plate to increase the incline angle of the push plate, so that the push plate is locked on the push rod in a tilt manner to lock and move the push rod without having to replace the push plate, thereby enhancing the lifetime of the caulking gun.

Abstract: A caulking gun includes a gun body, a connector secured on an end of the gun body, and a hanging hook adjustably positioned on the connector. Thus, the angle and position of the suspension portion of the hanging hook can be adjusted arbitrarily so as to fit the user's practical requirement. In addition, the positioning bosses of the hanging hook are positioned in the positioning holes of the connector, so that the hanging hook is combined with the connector rigidly and stably.

Abstract: A caulking gun includes a gun body, a push rod, a push plate, an adjusting seat, a driving member, and an elastic member. Thus, the adjusting seat is movable in the gun body by rotation of the driving member to adjust the incline angle of the push plate by guidance of the tapered urging face of the adjusting seat so as to increase the incline angle of the locking hole of the push plate, so that the locking hole is locked on the push rod in a tilt manner so as to lock and move the push rod, without having to replace the push plate, thereby enhancing the lifetime of the caulking gun.

Abstract: A C-gun type caulk gun capable of accepting disposable caulk tubes having different outside diameters within a similar caulk tube body length.

Abstract: A fluid dispenser device comprising a body (1), dispensing means (30) for dispensing the fluid, a first reservoir (10) containing a first fluid and a second reservoir (20) containing a second fluid, the first and second fluids being to be mixed prior to dispensing so as to form one or more doses of fluid to be dispensed, said fluid dispenser device being characterized in that it further comprises a mixture-forming system for mixing the first and second fluids in one of said reservoirs (10, 20), said mixture-forming system having a manual actuating element (50) that is mounted to move in a direction that is substantially perpendicular to the direction in which the fluid is dispensed, said manual actuating element (50) being actuatable with one hand and acting, after said first and second fluids have been mixed, to actuate the dispensing means (30) for dispensing the fluid, without any further manipulation of the device being necessary.

Abstract: A caulk dispensing gun for dispensing a viscous material received in a cartridge, includes a stock having a piston rod, an actuating plate having an aperture for receiving the piston rod, and a trigger pivotally secured to the stock and having an actuating pin for engaging with the actuating plate. The actuating plate may move the piston rod incrementally and forwardly relative to the stock to force the viscous material out of the cartridge. An adjusting device may adjust the inclination of the actuating plate relative to the piston rod, to adjust a frictional engagement between the actuating plate and the piston rod, particularly after the piston rod and the actuating plate have been worn out after use.

Abstract: A dispenser for dispensing extrudable material from a cartridge. The dispenser includes a housing having a first recess for holding the cartridge, a plunger movable along the longitudinal axis of the first recess, a driver element for selectively engaging and moving the plunger in a forward direction along the longitudinal axis, and a clutch element for and selectively engaging the plunger to restrain movement of the plunger in a rearward direction. When the clutch element restrains the plunger, movement of the plunger in the rearward direction is limited to a predetermined distance.

Abstract: It becomes possible for the rotational force generated by an operating member (12, ) to be transmitted to a cylindrical movable body (13) by means of a shaft member (62) inserted slidably in the longitudinal direction in a non-rotatable fashion, inside the movable body (13), and moreover, the shaft member (62) becomes able to pass inside the movable body (13) by penetrating through the inner side of the ratchet spring section (81), a composition being adopted wherein the shaft member (62) passes through the female screw thread (11a) of the main body (11) which screws together with the male screw thread (13a) of the movable body (13).