Abstract: A cartridge system for multi-component reactive viscous fluids which includes a plurality of syringe elements conjoined and discharging into an outlet having a matching plurality of outlet passageways therein. The cartridge has a frangible cap that seals the outlet passageways prior to use, is broken away from the outlet for dispensing and has plugs insertable into the passageways to reseal the cartridge after use. The plugs preferably have lead-in chamfers and a sealing ledge. Orientation device is provided to prevent cross-contamination upon resealing. A cooperating dispenser gun incorporates registration and a retention device to secure the cartridge in position and has an integral cap removal and retention tool.

Abstract: A cartridge system for multi-component reactive viscous fluids which includes a plurality of syringe elements conjoined and discharging into an outlet having a matching plurality of outlet passageways therein. The cartridge has a frangible cap that seals the outlet passageways prior to use, is broken away from the outlet for dispensing and has plugs insertable into the passageways to reseal the cartridge after use. The plugs preferably have lead-in chamfers and a sealing ledge. Orientation means are provided to prevent cross-contamination upon resealing. A cooperating dispenser gun incorporates registration and retention means to secure the cartridge in position and has an integral cap removal and retention tool.

Abstract: A proportioning dispenser for proportioning at least two components which are each supplied via a pump unit from an associated accommodating compartment is disclosed. The adjustment of the mixing ratio is effected via a transmission member the point of application of which is adjustable with respect to the two pump units.

Abstract: A double-barreled syringe is provided which includes a mixing tip which is detachable after the tip is locked to the syringe body, so that the tip may be replaced by a locking cap. Locking occurs when a neck extending from the body between two shoulders is inserted into a bore in the tip (or, alternatively, the cap) and the tip is rotated so that two symmetrically opposed tabs attached to the tip are each received within a recess determined by a shoulder and a locking rib attached to the shoulder, and two diametrically opposed detents extending from the neck are each received within a recess in the bore surface.

Abstract: The cartridge dispenser comprises a double cartridge having two cylindrical containers of different cross-sections, a drive for a dynamic mixer, and a housing base in which the drive shaft of the dynamic mixer is arranged in a longitudinally displaceable manner. The mixer drive shaft is guided in a laterally displaceable manner such that the driver of the mixer drive shaft is situated on the center axis of the mixer rotor independently of the cross-sectional ratio of the containers of the double cartridge. The mixer is located on the center axis which extends between the outlets of the containers. The mixer drive shaft is automatically forced to the correct position when a double cartridge is inserted. Consequently, the driver is always correctly aligned to the mixer rotor. Suitable means in the housing base always provide a correct location of the cartridges, and in a preferred embodiment, the mixer can be attached to the cartridge without the need of being previously oriented.

Abstract: A dispenser in which a dry powder (one component of a two-part adhesive tissue sealant and/or adhesive) is stored in a container (e.g., a carpule) having a septum at one end, an open end opposite the septum, and a movable plug. The powder is retained at the septum end of the container by the movable plug, which is displaced and pushed back as the solvent used for reconstituting the powder is introduced (e.g., through the septum). The second part of the tissue sealant is contained within a second container, also with a movable plug. After the first part is reconstituted, a manifold is fitted which pierces both septums and allows the contents to be dispensed. A dual syringe body supports the containers, and has pistons that enter the open ends to advance the movable plugs. Other embodiments of tissue adhesive and/or sealant dispensers and kits as well as methods of preparing tissue sealants are also described.

Abstract: A manually operably cartridge dispensing gun(1) for cartridges of the kind containing two components, said gun including a bed(2) to captively retain the cartridge, a manually operable drive assembly to advance inner(4) and outer(5) concentrically arrranged piston pushers against corresponding pistons in the cartridge, the outer piston pusher(5) being dimensioned to bear against a circumferentially outermost piston in the cartridge and including a central aperture to accomodate the inner piston pusher(4) of a first dimension for use with an inner piston of a cartridge having a first component ratio, said inner piston pusher(4) being selectively reconfigurable to a second, reduced, dimension for use with an inner piston of a cartridge having a second component ratio.

Abstract: A syringe and needle assembly having a protective needle shield, which is structurally simple and provides greater safety in use, is disclosed. The syringe and needle assembly comprises a barrel; a plunger disposed slidably inside the barrel; a needle unit including a needle hub and a needle securely affixed to the needle hub; and a cap disposed about the needle unit and the barrel as a protective cover. The cap has a curved wall covering the needle unit and the barrel, the wall having an open end adjacent to the barrel, a closed end adjacent to the needle, and an opening extending longitudinally from the open end to the closed end for lateral insertion of the barrel and the needle unit into the cap. The opening is in communication with the open end and has a width sufficient to permit passage of the barrel along a direction transverse to the opening.

Abstract: A dispensing syringe (10) has a barrel (20) keyed (31, 32) to a gripping assembly (40) having complementary keyed surfaces (42). A nut having dual threads (61, 62) of differing diameters is threaded to one end of the barrel (20) and receives a matingly threaded (71) plunger (70). Turning the plunger (70) causes it to advance within the barrel (20) due to the interaction of the mating threads (62, 71). The gripping assembly (40) is provided with winged projections (50) that facilitate handling and manipulation of the syringe (10). The complementary keyed surfaces (31, 32 and 42) physically interact so as to prevent the gripping assembly (40) from turning or twisting about the barrel (20) during use.

Abstract: A device for mixing and dispensing at least two separate components, comprising: at least two containers for separately containing one component of the at least two separate components to be mixed, each container of the at least two containers having an opening; a nozzle assembly having an inlet portion communicating with each opening of each container, the nozzle assembly defining a mixing chamber communicating with the inlet portion, and a discharge outlet communicating with the mixing chamber; a mixing element disposed in the mixing chamber, the mixing element having a shank defining a longitudinal axis thereof, the mixing element having a plurality of mixing portions along the longitudinal axis of the shank, each mixing portion of the plurality of mixing portions being separated by a space, each mixing portion having at least two extensions, each extension extending radially outwardly from the shank and extending along a length of each mixing portion in spiral form relative to the longitudinal axis, the a

Abstract: A fluid spray device comprising an outlet channel (120) terminating in a spray orifice (125), a first tank (110) containing a first substance, a second tank (210) containing a second substance, said two tanks (110, 210) being interconnected by a passage (160, 260) and prior to actuation of the device, being separated from each other in leakproof manner by sealing means (115, 215) disposed in said passage (160, 260), mixer means (130, 135; 235) being provided to open said passage (160, 260) and to mix together the two substances before they are dispensed, and dispenser means (235, 135) being provided for dispensing said mixture, the device being characterized in that said sealing means comprise at least one ball (115, 215) adapted to be expelled from the passage (160, 260) by said mixer means (130, 135; 235), said mixer means comprising a first piston (135; 235) slidably received in one of the tanks (110; 210) to transfer one of the substances from its tank (110; 210) into the other tank (210; 110), said dispe

Abstract: Poly(alkyl methacrylate) bone cement ingredients are prepackaged as two separate components in two separate chambers of a container which can be connected to a static mixer, where both components are in a liquid form that is at least substantially air-free, and wherein the static mixer can mix the two liquid components without mechanical agitation and without the introduction of air into the two liquid components during the transfer of the two liquid components from their separate chambers through the static mixer. The first liquid component is formed by premixing a bone cement liquid monomer with bone cement polymer powder, a polymerization initiator, and a stabilizer to form a liquid mixture. The second liquid component is formed by premixing bone cement liquid monomer with bone cement polymer powder, if any, a stabilizer, and an activator to form a liquid mixture.

Abstract: A double-barreled syringe is provided which includes a mixing tip which is detachable after the tip is locked to the syringe body, so that the tip may be replaced by a locking cap. Locking occurs when a neck extending from the body between two shoulders is inserted into a bore in the tip (or, alternatively, the cap) and the tip is rotated so that two symmetrically opposed tabs attached to the tip are each received within a recess determined by a shoulder and a locking rib attached to the shoulder, and two diametrically opposed detents extending from the neck are each received within a recess in the bore surface.

Abstract: A rapid discharge multiple material delivery molding system includes a feed assembly having an upper portion, a movable middle portion and a lower portion. A drive is mounted between the middle portion and the lower portion to drive the middle portion and simultaneously control the intake and discharge of a fluid material from each of a plurality of fluid delivery containers. Each fluid delivery container is specifically sized to contain a predetermined volume of fluid material. By attaching a plurality of variously sized fluid delivery containers to the lower portion, an exact volume of each fluid material is dispensed simultaneously upon a downward stroke of the middle portion.

Abstract: A device and method for dispensing flowable materials from a plurality of cartridge assemblies. Under the preferred embodiment, the device comprises a receptacle for carrying a plurality of cartridge assemblies therein. The cartridge assemblies each have a longitudinal axis and include a dispensing nozzle and an elongated tubular wall portion for containing a flowable material therein for dispensing. The wall portion is formed of a material that can be cut by a cutting surface. A drive mechanism is provided for moving an elongate drive rod in a direction parallel to the longitudinal axis. A web assembly is secured to the drive rod, the web assembly including a plurality of ejectors extending therefrom. Each ejector is arranged for reciprocal movement along the longitudinal axis within one of the cartridge assemblies between a forward ejecting direction to dispense the flowable material it contains and a return direction.

Abstract: A hair dye applicator for mixing dye gel and peroxide as needed. The hair dye applicator includes a housing having a top wall, a bottom wall, a front wall, a back wall and a pair of lateral side walls. A cartridge comprises a first tubular member and a second tubular member coupled together. Each of the tubular members has an open first end and a closed second end. Each of the second ends of the tubular member has a hole extending therein. An annular lip is integrally coupled to the second end and encompasses the holes in the second end. Dye gel is positioned in one of the tubular members and peroxide activator is positioned in the other of the tubular members. A coupling member removably couples the first end of the cartridge to the front wall of the housing. A generally hollow rod and has open first and second ends. A bracket member releasably secures the first end of the rod to the second end of the cartridge. The second end of the rod extends into and is fluidly coupled to a manifold.

Abstract: A device for the discharge of a pasty two-component mixture includes a supply container with two chambers, each chamber for containing one component of the two-component mixture and having an outlet stub for connecting to a mixer unit. The mixer unit includes a coupling end having two inlet stubs which form two channels leading into a mixer element, and on an opposite end, an outlet opening. A rotatable holding shell is provided in a substantially surrounding relationship to the two outlet stubs and includes a recess of a shape substantially identical with the cross sectional shape of the coupling end of the mixer housing.

Abstract: A cold beverage dispensing system for chilling a beverage such that at least a portion of the beverage includes a frozen component. The system includes a beverage hopper or tank for retaining a quantity of beverage and a chilling assembly communicating with the beverage hopper for chilling the beverage. The system also includes a beverage detector having a conductive probe carried on and extending into the beverage hopper for detecting the condition of either the presence or absence of a beverage at a predetermined level in the beverage hopper and generating a refill control signal corresponding to the condition detected. A refill assembly communicates with the beverage hopper for controllably providing refill beverage to the beverage hopper. A controller is coupled to the refill assembly and the beverage detector for operating the refill assembly in response to the refill control signal to maintain the beverage in the beverage hopper at the predetermined level.

Abstract: A two-component dispensing gun has two longitudinally-extending dispensing passages receiving metering rods and in fluid communication with two feed passages adjacent to an especially configured metering rod tip and valve seats formed at the exit end of each dispensing passage. Valve seats of the dispensing passage extend as protrusions from the gun nose and are sealingly received within cup shaped recesses formed in a detachable, throwaway nozzle having a static mixing chamber. The nozzle has a truncated cone configuration which, in combination with the geometric configuration of the dispensing and feed passages alleviates turbulent flow of the liquid components until reaching the static mixer within the nozzle. A cammed surface on each metering rod in combination with a yoke crossbar formed as part of the gun's trigger provides increased motion of the trigger for fine or slow metering applications of the gun.

Abstract: A dispensing tool according to the present invention includes a dispensing outlet and at least a first material storage tube having a material storage chamber and an outlet. The tool also includes a drive assembly that is at least partially disposed within the first material storage tube and adapted to dispense material from the first material storage tube through the dispensing outlet. A valve assembly allows the material storage tube to be automatically reloaded when the tool is placed in a reloading station. A clamp may be used to hold the tool at the station.

Abstract: The fill materials in the chambers of a two-component cartridge separated by the separating wall enter into outlet openings. An insert piece is mounted onto a small tube in which is formed the outlet opening, over which grips a mixing channel. The insert piece and the separating wall (3A) are connected fixed against rotation to one another. The fill material from the outlet opening (8A) passes over into a passage opening (18A) and exits through the outlet (22) from the insert piece (10A). The fill material from the outlet opening (7A) passes over into a passage opening (17A) and moves from there into a channel (23), which has the outlet (21A). The outlets (21A) and (22) are arranged closely adjacent to one another so that a mixing of the two fill materials occurs already during entry into the mixing chamber (14A) of the mixing channel (9A).

Abstract: A manually operated dispensing device for use with a double cartridge for dispensing two-component chemical systems includes a double thrust ram with two thrust ram parts each having a toothed surface on which teeth are provided. The width of the thrust ram parts may be equal, or alternatively, the one thrust ram part may be wider than the other. The dispensing device further includes a drive assembly for acting on the double thrust ram, which is actuated by a trigger lever. The drive assembly includes a drive member, which includes teeth for acting on the teeth of the double thrust ram. The toothed surface of the thrust ram parts are either provided with ribs arranged near the outer edges of the thrust ram parts or have no ribs at all. As a result, a maximum width of the teeth is obtained and a maximum force is transmitted.

Abstract: The present invention relates to improved dental compositions and methods for bleaching teeth. More specifically, this invention is directed towards hydrogen peroxide-containing compounds that are maintained at a substantially constant pH range of 6.0-10.0 during the tooth-bleaching procedure in the presence of a calcium chelating agent.

Abstract: A device for expressing free-flowing compositions is presented having a cylindrical container (1) for accommodating a free-flowing component (2), two axially displaceable pistons (3) and (4) designed to close the cylindrical container, and a material outlet opening (5) at the lower end of the cylinder wall. The material outlet opening only releases the flow of the component (2) after the piston (4) has been moved past the material outlet opening into the end position (4′) by the expressing pressure. The device can be used with a conventional applicator for one-component adhesives, sealants or coating materials to provide the addition of a second component.

Abstract: Apparatus for dispensing a mixed multi-component compound, in particular for dental purposes. The adjacent outlet connection stubs of the component-containing containers bear a coupling plate on the end sides for the purpose of connecting a mixing nozzle. Said coupling plate forms a guide, running transversely to the direction of the outlet connection stubs, for a coupling slide with a coupling element which engages over a coupling flange provided on the mixing nozzle. The slide is in the form of a frame and is arranged permanently on the coupling plate.

Abstract: The present invention relates to improved dental compositions and methods for bleaching teeth. More specifically, this invention is directed towards hydrogen peroxide-containing compounds that are maintained at a substantially constant pH range of 6.0-10.0 during the tooth-bleaching procedure in the presence of a calcium chelating agent.

Abstract: A modular adhesive bead dispensing unit having at least one bead dispensing module. The module includes a mounting frame for mounting the module to the unit, and at least one adhesive dispensing manifold. The manifold includes a housing having an inlet opening for introducing adhesive into the housing, an outlet opening for dispensing the adhesive, a non-stick compressible fitting within the outlet opening, the fitting having an opening therethrough, and an outlet closing member receivable within the fitting opening for starting and stopping flow of an adhesive bead from the head. The module also includes at least one actuation unit for retracting and reinstalling the outlet closing member within the fitting opening. The manifold for dispensing adhesive has a sleeve mounted in the outlet opening, adjacent the fitting, and a retainer for retaining the fitting within the outlet opening and for adjustably pressing the fitting into the sleeve.

Abstract: A fluid mixture dispenser has a container with independent fluid chambers that respectively maintain fluid components for combination. Each chamber includes an outlet and a driver. For each chamber, actuation of the driver effects the discharge of the fluid component through its outlet. The outlets of the fluid chambers open into a second container to receive a fluid mixture consisting of the fluid components, where the second container also includes an outlet and a driver. Actuation of the driver for the second container effects the discharge of the fluid mixture.

Abstract: A device for dispensing a base substance and a booster substance in a user selectable ratio includes a dispenser head having a pair of spaced apart outlet ports, a first cartridge containing the base substance which is removably coupled onto the dispenser head and a second cartridge containing the booster substance which is removably coupled onto the dispenser head. Each of the first and second cartridges include a collapsible plastic liner which is mounted onto a supporting frame, the supporting frame of each cartridge having a uniquely shaped flange. A first pump assembly is disposed within the dispenser head and serves to draw a fixed amount of the base substance from the first cartridge and dispense the fixed amount of base substance out one of the outlet ports upon depression of a trigger which is slidably disposed in the dispenser head.

Abstract: A metering pump dispenser for simultaneous metered dispensing of liquid and/or pasty media has at least two separate storage chambers (1, 2), which are arranged in a common pump housing (9) and with which separate metering pumps with a priming valve and a dispensing valve each are associated. The metering pumps can be actuated by a common actuating member, which is mounted axially movably in the head part of the pump container and has one or more dispensing channels.

Abstract: A stabilizing plate for a dual-barrel dispensing gun of the type having a pair of laterally-displaced and adjustable plunger shafts with end-mounted pistons for extruding compound from twin cartridge packs. The stabilizing plate spans both plunger shafts rearwardly of the pistons and engages both sides of a twin cartridge pack seated in the dual-barrel, thereby aligning the cartridge pack relative to the plunger shafts during use. This helps to maintain a proper mix ratio from both sides of said twin cartridge pack. The stabilizing plate is formed with side-by-side apertures to pass the plunger rods of the dispensing gun. The front face of the stabilizing plate is defined by radial centering channels. More specifically, two sets of radial centering channels are provided, one set on each side of the stabilizing plate (each set corresponding to a plunger shaft), and each set being a series of circular channels of increasing diameter.

Abstract: A delivery tip for delivering first and second materials has: (i) a hollow main body; and (ii) a septum extending along the length of the hollow main body, dividing the main body into first and second lumens. The first lumen terminates in a first opening on one side while the second lumen terminates in a second opening on an opposing side. The septum has a diverting end portion. First and second materials extend through respective first and second lumens of the tip until encountering the diverting end portion of the septum. The first and second materials then exit the tip in respective diverging first and second exit flow paths outwardly away from the distal delivery end of the delivery tip. A collar selectively mounts the delivery tip onto a two-part material delivery system. The collar can have a cap tethered thereto.

Abstract: A bayonet attachment on a cartridge for attaching a mixer or accessory to a multiple component cartridge is formed as a ring-shaped bayonet socket with two internal recesses and two diametrically opposed cutouts forming one bayonet coupling part, whereas the bayonet attachment of the mixer or accessory comprises two bayonet lugs corresponding to the cutouts. In a preferred embodiment, the respective inlets of the mixer housing or the outlets of the cartridge have different sizes or shapes to provide coded alignment between the cartridge and the mixer.

Abstract: An application device for applying a multicomponent tissue adhesive which includes a plurality of supply reservoirs for respectively one fluid component, each supply reservoir having a front end with an opening for discharge of the respective fluid component. The front ends of the supply reservoirs are arranged within accommodating connecting pieces of a connecting headpiece. The accommodating connecting pieces are provided with projections extending radially outwards. The supply reservoirs are held by a holding device. The application device is further provided with a coupling element for releasably connecting the holding device to the connecting headpiece, the coupling element including an encompassing member with a plurality of encompassing zones for at least partially encompassing the accommodating connecting pieces and for abutment on the sides of the projections of the accommodating connecting pieces facing away from the holding device.

Abstract: An applicator and an electro-mechanical applicator drive system for automatically emptying the liquid components from respective syringes in a controlled manner for co-applying fibrin sealant components with a gas to form a spray. The applicator drive system includes a piston elevator section which moves the syringe pistons of the respective syringes in unison. The applicator drive system further includes at least one syringe piston force sensor which senses a force required by the piston elevator section to move at least one of the syringe pistons forward and outputs a force sensor signal. A controller is provided which controls movement of a piston elevator of the piston elevator section based on the force sensor signal.

Abstract: A dispensing system for dispensing first and second materials to a desired location within the mouth of a patient, includes: (i) a two-part material delivery system; (ii) a hollow delivery tip configured to deliver material to a specific location within a patient's mouth; and (iii) a hollow, flexible adaptor configured to flexible couple the delivery tip in fluid communication with the two-part material delivery system. The flexible adaptor enables the practitioner to move the delivery tip to a specific location within the patient's mouth without requiring that the delivery system be moved adjacent the mouth. Thus, the flexible adaptor enables a practitioner to deliver freshly mixed first and second materials to a specific desired location within the mouth of a patient.

Abstract: The dual chamber dispenser consists of two tubular chambers each of which is connected to a pump. The pumps are self-priming and are of a type that draw the substances from the tubular chambers. There is an activator which also serves as the top of the dispenser, side view apertures, a foot for better stability and a spout that is angled for enhanced dispensing. The side view apertures allow for viewing the fill level of the tubular chambers. The pumps are of a type having an upper valve and a lower valve, with the upper valves a part of the piston's that move in and out of the pumping chambers. The valves in said pumps are positive closing by means of a biasing spring. The substances to be dispensed are maintained separate, one from the other, until the substances are dispensed.

Abstract: The invention relates to a dispensing device for simultaneously dispensing fluid from at least two fluid containers fitted with plungers, wherein the device includes an actuating device having at least two output elements, a push element able to displace the output elements, a force element that acts on the push element in the direction of the fluid containers, and a brake element which acts on the push element and can be manually modified to cancel the effect of the force element.

Abstract: A dual chamber package for containing and simultaneously dispensing two individually contained fluent products which are not continuously externally pressurized. The package has an outer container body formed of a resilient plastic material, which is closed at one end, and a pair of collapsible containers contained within the outer container body for containing the fluent products out of contact with one another. A single elevator is positioned in within outer container body, initially near the closed end thereof, and in contact with closed ends of each of the collapsible containers. The elevator receives the free end of a walking stick in a one-way connection, and lifting of the walking stick causes the elevator to rise, thereby simultaneously dispensing small doses of the packaged products from the collapsible containers.

Abstract: An electrostatic spraying device comprising a nozzle, means for establishing a column of material to be sprayed within a passage leading to the nozzle outlet such that the leading surface of the column is spaced from the nozzle outlet, means for pneumatically ejecting said column or part thereof from the nozzle and means for applying high voltage to the material so that the spray formed by breaking up of the column on ejection from the nozzle are electrically charged. The column of material in the passage is preferably a discreet slug having a leading surface spaced from the nozzle outlet and a trailing surface to which air, gas or vapor under pressure can be applied to effect ejection of the slug from the nozzle.

Abstract: A mixing device for fluids, comprising a column within which there is an internal core, a space between the column and core defining a channel for the flow of the fluids, the surface of the column facing the core having fluid guide elements which impart helical flow in a first twist direction upon a fluid flowing along the channel, the surface of the core having fluid guide elements thereon which impart helical flow in an opposite twist direction upon the fluid. On part of the channel, the helical flow imparted to the fluid is predominantly in the twist direction of the elements on the core and on a part of the channel upstream or downstream of this part the helical flow imparted to the fluid is predominantly in the twist direction of the elements on the column.

Abstract: A bayonet attachment on a cartridge for attaching a mixer or accessory to a multiple component cartridge is formed as a ring-shaped bayonet socket with two internal recesses and two diametrically opposed cutouts forming one bayonet coupling part, whereas the bayonet attachment of the mixer or accessory comprises two bayonet lugs corresponding to the cutouts. In a preferred embodiment, the respective inlets of the mixer housing or the outlets of the cartridge have different sizes or shapes to provide coded alignment between the cartridge and the mixer.

Abstract: The manually operated dispensing device for a double dispensing cartridge comprises a double thrust ram having a toothing and a drive means which is actuated by a trigger lever and which jointly acts on the double thrust ram, this drive means having a drive member which acts via a toothing on the toothing of the double thrust ram, an arc compensating element being arranged between the drive member and the trigger lever. The drive member is guided in such a manner that it is able to make a linear motion during its advance stroke but no swivelling or tilting motion but can make a swivelling motion for disengaging the double thrust ram or for the return stroke movement of the drive member, the arc compensating element for the trigger lever being a compensating link, pivotably connected at its one end to the trigger lever above its fulcrum by a first fulcrum pin and at its other end to the drive member by a second fulcrum pin.

Abstract: The manually operated dispensing device comprises a friction brake acting upon a thrust rod. The friction brake consists of a brake spring comprising a loop portion having a radius, and an attached clamping portion having two legs for receiving between them a web extending on the thrust rod in lengthwise direction and normally to the toothing plane of the thrust rod. One of the legs is straight-lined whereas the other leg is curved or angularly bent from the loop portion. In this way, the brake spring is asymmetric with respect to its longitudinal axis, and the straight-lines portion acts for lining up the toothing of the thrust rod to the toothing of a drive member. Such a friction brake which consists of a spring only, can be manufactured and mounted in a simple and low-cost manner and aligns nevertheless the thrust rod in an efficient way.

Abstract: A fluid substance dispenser, includes: a main casing having a multiple number of partitioned, fluid substance storage spaces, each having a piston having a female threaded hole and a piston moving mechanism fitted inside the fluid substance storage space; a forward actuation shaft having a male thread mating the female threaded hole; and a shaft rotating mechanism for turning the forward actuation shaft. This shaft rotating mechanism is configured of a single forward-actuating knob rotatably supported by the main casing and gears for transmitting the rotation of the forward-actuating knob to each forward actuation shaft.

Abstract: A multi-piston, ratcheted dispensing device for cosmetic and pharmaceutical formulations comprising a hollow body, the body being interiorly divided into at least two channels; a ratchet cup for applying force to at least two ratcheting members, each ratcheting member being in rigid contact with one of at least two pistons, each piston being disposed within the channels; at least one recoil member for biasing the ratchet cup away from the pistons; exit orifices disposed within the body; and, optionally, conductors for directing the dispensed product, sealing mechanisms to prevent dry-out of the product and an actuator.

Abstract: A mechanical proportioner is provided with two pump lowers which are connected together by a yolk underneath an air-operated reciprocating piston pump. The pumps are staggered axially so as to enable overlapping of certain portions thereof thereby enabling the center-to-center distance to be minimized. The mix manifold is constructed in a concentric fashion such that mixed material does not come into contact with the mix manifold until it enters the static mixer at the exit of the manifold which is an easily disposable and replaceable part. The purge solvent valves on the mix manifold are each provided with an extension of their respective handles. If either purge valve is in its open position, a separate interlock handle operating the A and B side valves at the manifold inlet is prevented from opening. Similarly, if the interlock handle operating the A and B side valves is open, the purge valves cannot be opened.

Abstract: The apparatus for carrying out a mixing dispensing of a plurality of flowable components from a multiple chambered vessel (2) comprises the following parts:a housing (1) which can be placed onto the vessel and has an outlet opening (12), a transition part (11) which can be coupled on to the vessel and a tubular part (10) between the transition part and the outlet opening;a static mixer (4) consisting of a structure which can be pushed into the tubular part;a transition piece (3) which is arranged in the transition part, which produces separate supply passages (31, 31') from outlet openings (21, 21') of the vessel to the mixer structure (4) and which permits a flowing of the components only through these supply passages;and furthermore a coupling-on means (15) for the releasable securing of the housing to the vessel.

Abstract: The cartridge assembly for dispensing at least one component comprises a cartridge having a rigid cartridge cylinder, a package assembly having a membrane containing liquid chemical, the membrane having a closed inlet end and an outlet end and a piston assembly disposed in said cartridge assembly. The piston side end of the inner wall of the cartridge cylinder and the front of said piston assembly are formed thus that the membrane is turned outside-in within itself by the action of the piston provided with a sealing lip such that the inner surfaces of the turned outside-in wall portions of the membrane are sliding relative to each other during emptying of the package, sealing the gap betweeen the double walls. Such a device requires considerably less dispensing force which is important particularly for a hand driven apparatus, and allows an efficient sealing of the liquid while dispensing.

Abstract: A device mountable on a material container for dispensing fluid or pasty material therefrom is disclosed. The device comprises a first pump (10) for selectively dispensing the material from the container through an outlet (31), said first pump being mountable on the container by means of an attachment member (11), and a manual actuation member (30) movable between an inoperative position and an actuated position. The device further comprises a second pump (20) for dispensing compressed air at the same time as the material is dispensed. The second pump comprises two elements (21, 22), i.e. a plunger (21) and a pump cylinder (22) slidably housing the plunger (21), and is designed to feed a flow of compressed air to the outlet (31) in order to spray the material. One of said two elements (21, 22) of said second pump (20) is secured to said attachment member (11) of the first pump (10), whereas the other of said two elements (21, 22) is secured to the actuation member (30).