Abstract: An improved barrier member for use in a pressurized container is disclosed. The barrier member may be manufactured from a sheet metal for improved resistance to product and/or propellant permeation without compromising the sealing performance of the barrier member against the interior surface of the pressurized container. The barrier member may include a flexible sidewall that can conform to the inner sidewall of the container. The disclosed barrier member may also include one or more surface irregularities on the side portion thereof to further improve the sealing performance of the barrier member. The bottom edge of the barrier member may be inwardly curled at one or more peripheral locations to prevent or reduce the scratching of the interior surface of the pressurized container.

Abstract: A pneumatic fluid dispenser has an electromechanical actuator that is supported by a dispenser body and operable to move a mechanical stop in the dispenser body. A drive piston also mounted in the dispenser body is powered by pressurized air and is movable into contact with the stop. Thus, the stop limits a displacement of the drive piston and hence controls a volume of fluid dispensed by the pneumatic fluid dispenser.

Abstract: A refillable material transfer system is disclosed having a portable constant-pressure compressed gas system for storing, transferring and dispensing viscous material, such as fluids and liquids, includes a material containment vessel with an upper region incorporating a motive force and a bottom region with a material ingress and egress opening. The portable constant-pressure compressed gas subsystem can be used with a fluid vessel, hand-held systems, a backpack system or other configurations.

Abstract: A liquid-metering device is disclosed, in particular, a pipetting device for aspirating and dispensing liquids. The device comprises a vessel which is at least partially filled with gas and has an opening through which liquid is received or discharged, a gas-pressure-changing device for changing the gas pressure in the vessel, a state-variable-detecting device for detecting at least one state variable of the gas in the vessel, and a control device which activates the gas-pressure-changing device as a function of the state variable detected by the state-variable-detecting device. The control device is a regulating device which, during a regulating time segment between liquid reception and liquid discharge, activates the gas-pressure-changing device as a function of the detected state variable such that the actual gas pressure in the vessel is kept essentially at a predetermined gas pressure.

Abstract: Disclosed are pressure vessels, especially an aerosol container, which comprise an interior that is subdivided into a storage chamber (3) and a propellant chamber (4) and are operated by means of a two-phase propellant. The gas phase (5) of the propellant encompasses carbon dioxide while the liquid phase (6) encompasses polyethylene glycol and/or a (C1-C4) monoether and/or a (C1-C4) diether of a polyethylene glycol, and carbon dioxide that is dissolved therein.

Abstract: A spreading device (10) includes an injector (14) and a spreading tube (16) connected with the injector. The injector contains therein a viscous thermal medium material for being spread on a surface of a cooling device for electronic components. The spreading tube defines therein at least one outlet hole (164) for release of the thermal medium material contained in the injector. The spreading device further includes means formed on the spreading tube for evenly distributing the material released through the outlet hole of the spreading tube over an entire area of the surface to be applied with the thermal medium material.

Abstract: A pressure vessel, a system and/or a method dispense a comestible mixture. The pressure vessel, the system and/or the method are used to cool, freeze and/or entrain a gas into the comestible mixture before dispensing the same. The pressure vessel may have a lid and a body that are connected to form an air-tight compartment. The compartment is sized to receive a deformable bag of the comestible mixture. The bag has an opening to communicate the comestible mixture from the bag and/or the compartment through a hole in the lid. The pressure vessel, the system and/or the method has a compressor or other source of a compressed gas a hose to communicate the compressed gas from the compressor into the compartment. Further, the hose communicates the compressed gas to a freezing chamber and/or a cooling chamber of the machine. The pressure vessel, the system and/or the method has a tube to communicate the comestible mixture from the bag to the freezing chamber and/or the cooling chamber.

Abstract: A viscous material container evacuator comprises: a chamber to hold a container and a plunger axially and slidably accommodated within the chamber to express material from the container; at least one hinged enclosure that closes to define the chamber and to securely enclose the container; at least one hydraulically activated fastener that secures the enclosure around the container; a hydraulic motor operatively part of the fastener; and a relief cartridge controllably mounted with a hydraulic line to the motor to deliver a hydraulic drive pressure to the motor and comprising a bypass line around the motor and a pressure sensor to sense a pressure level of the hydraulic drive pressure and to divert the hydraulic drive pressure from the motor when the pressure level is sensed.

Abstract: A hand held portable caulking gun dispenses sealant, caulking or other viscous fluid from a replaceable container received within a housing provided by the device. The caulking gun includes a first reservoir to receive a pressurized gas at a first operating pressure less than a first predetermined pressure. The pressurized gas is selectively released to express the viscous fluid. The first reservoir comprises an inlet for introducing the pressurized gas from a pressurized gas source. The first reservoir operates within a pressure range of about 80 psig (550 kPa) to about 250 psig (1720 kPa). A second reservoir operates within a pressure range of about 10 psig (70 kPa) to about 80 psig (550 kPa). The device defines a storage volume for an effective amount of pressurized gas sufficient to discharge the viscous fluid from the replaceable container.

Abstract: A bag-in-bag-in-bottle assembly formed by a flexible dispensing container with a dispensing fitment. The dispensing container is positioned adjacent or sandwiched between one or more flexible pressurization containers having a separate inlet/outlet path through a second fitment. The bag-in-bag assembly can then be placed in a containment vessel with the fitments mounted such that it is accessible on the vessel. A liquid can be extracted from the dispensing container by introducing a fluid into the pressurization container(s) with enough pressure to force the liquid out through the dispensing fitment. A contoured dispensing head may be coupled to the bag-in-bag-in-bottle assembly using a earn actuation arrangement for simultaneously locking the pressurization, vent and fluid extraction couplings.

Abstract: The invention relates to a bag of variable volume able to contain fluids and designed to be introduced into a container through the container's neck, said bag consisting of a pouch with one closed end and one open end, the open end being dimensionally stable over temperature ranges of from ?30 to 55° C., to a device incorporating said bag and to a process for filling it.

Abstract: An apparatus and method for dispensing controlled precise amounts of a hot-melt adhesive. A positive displacement dispenser which is mounted on a programmable motion system is connected to a hot-melt cartridge feed assembly by an inlet block. The dispenser, feed assembly, and inlet block contain electric heaters and thermocouples for maintaining the adhesive at a desired elevated temperature. A computer control system regulates the temperature in the dispenser, feed assembly, and inlet block and controls a dispensing motor in the dispenser. A preheater heats an adhesive cartridge prior to placement in the feed assembly.

Abstract: A plunger for a syringe of a liquid dispenser comprises a tapered front end section 12 having at its rear end 16 an outer diameter slightly smaller than the inner diameter of the syringe, a cylindrical drum section 14 continued to the rear end 16 of the tapered front end section 12, having a maximum outer diameter substantially the same as the inner diameter of the syringe and opening there, and a collar member 24 (30, 32) slidably formed by coupling with an outer circumferential surface in the vicinity of an opening 22 of the drum section 14 and maintaining the close contact with an inner wall surface 26 of the syringe 18, thereby inclination toward the syringe is eliminated and action within the syringe is constantly made smooth.

Abstract: A propellant actuated dual fluid cartridge which does not need a separate dispensing mechanism is disclosed.

Abstract: A liquid supply apparatus is provided. The liquid supply apparatus has a cylinder, a piston and a gas supply apparatus. The cylinder is provided with a head portion with outlet. The cylinder has a rear end opened. The piston is inserted into the cylinder. The piston moves along the longitudinal direction of the cylinder so as to supply liquid contained in the cylinder. The gas supply apparatus generates and supplies gas to push the piston. The piston has a pair of sealing ring. The sealing ring has a base attached to a body of the piston and a outer wing connected to the base. The gas supply apparatus has a gas pressure regulator.

Abstract: A method of dispensing polyurethane foam from DOT-39 compliant tank, the method includes providing DOT-39 compliant tanks of each of the components of the polyurethane foam, each tank having at least two valves. At least one valve of each of the DOT-39 compliant tanks is connected to a source of pressure. At least one valve of each of the DOT-39 compliant tanks is connected to a dispenser to mix the components and dispense the foam under pressure.

Abstract: A spray nozzle designed to be mounted in a push button of a liquid distribution system, including a body equipped with an assembly tube that is defined by a front wall in which a distribution orifice is formed, wherein the inside face of the front wall is equipped with a vortex chamber that communicates with the distribution orifice, at least two radial tubes to supply liquid to the vortex chamber, and an annular duct to supply liquid to the upstream end of the tubes, in which the lateral inside wall of the tube is equipped with at least two axial grooves which respectively extend between an upstream end opening onto the rear edge of the tube and a downstream end opening onto the annular duct, wherein the grooves are positioned angularly so that each downstream end of a groove is equidistant from the two upstream ends of the tube adjacent to it on either side along the length of the annular duct.

Abstract: A pressure control device for maintaining a constant predetermined pressure in a container which is arranged for dispensing a fluid contained in the container from the container at said pressure, the pressure control device comprising a first chamber and a second chamber, as well as at least one closing member movable relative to the second chamber for releasing and closing a fluid connection between the first chamber and the container depending on the position of the closing member relative to the second chamber. The first chamber is filled with a gas which, in use, has a higher pressure than the pressure in the container. The second chamber is located outside the first chamber.

Abstract: A pressure control device for maintaining a constant predetermined pressure in a container which is arranged for dispensing a fluid contained in the container from the container at said pressure, the pressure control device comprising a first chamber and a second chamber, as well as at least one closing member movable relative to the second chamber for releasing and closing a fluid connection between the first chamber and the container depending on the position of the closing member relative to the second chamber. The first chamber is filled with a gas which, in use, has a higher pressure than the pressure in the container. The second chamber is located outside the first chamber.

Abstract: A viscous material application apparatus includes a main body having a pressurized chamber which connects through to a discharge port and stores a viscous material, a viscous material supply device for transferring the viscous material to the pressurized chamber, and a discharge pressure regulating device for regulating the discharge pressure of the viscous material when the viscous material inside the pressurized chamber is pressurized and discharged by increasing or decreasing the capacity of the pressurized chamber, the discharge pressure regulating device being provided either inside the pressurized chamber or facing the pressurized chamber.

Abstract: such as fluids and liquids, includes a material containment vessel with an upper region incorporating a motive force and a bottom region with a material ingress and egress opening. A diconical or other shaped force transfer device is located in the material containment area. The force transfer device is an energy transducer when the material containment is filled with highly viscous materials, such as adhesives, sealants, mastics or lubricating greases. The force transfer device serves as an integral part of a level indicator for both viscous fluids and lower viscosity liquids. The viscous material itself forms a seal between the interface region of the force transfer device and the inside wall of the fluid vessel. Vertical stabilizing elements may extend outward from the force transfer device.

Abstract: A plunger for a syringe of a liquid dispenser comprises a tapered front end section 12 having at its rear end 16 an outer diameter slightly smaller than the inner diameter of the syringe, a cylindrical drum section 14 continued to the rear end 16 of the tapered front end section 12, having a maximum outer diameter substantially the same as the inner diameter of the syringe and opening there, and a collar member 24 (30, 32) slidably formed by coupling with an outer circumferential surface in the vicinity of an opening 22 of the drum section 14 and maintaining the close contact with an inner wall surface 26 of the syringe 18, thereby inclination toward the syringe is eliminated and action within the syringe is constantly made smooth.

Abstract: A frozen aerated product in a container is provided. The product is under a pressure of between 4 and 18 barg, and the container is provided with a valve. The valve has a flow rate of above 6 g s?1, preferably between 10 and 30 g s?1. The flow rate of the valve being the mass flow rate at which the frozen aerated product, having a temperature of ?18° C., is discharged through the fully open valve to atmospheric pressure. Also provided are valves suitable for dispensing viscous products at high flow rate while retaining a low opening and actuation force.

Abstract: A storage container for granular fuel, comprising a lower, essentially horizontal, limiting surface and at least one adjoining lateral limiting surface, a feeding out device with an axial extension that considerably exceeds its radial extension, the feeding out device being arranged along at least 50%, preferably at least 75%, and even more preferred at least 90% of the axial extension of said lower limiting surface, a forward-feeding device arranged to transport said fuel in a direction towards said feeding out device, comprising a flexible bag that via a pressurized air inlet is inflatable and that is arranged in connection with at least a portion of the storage container's lower limiting surface and its adjoining lateral limiting surface, the feeding out device being arranged inside said storage container and the bag also comprising at least one outlet for pressurized air, whereby a flow of pressurized air is allowed through the bag during the inflation thereof.

Abstract: A substance dispersing apparatus having a cartridge used to deliver substances for the cosmetic, medical, dental, automotive, construction, and other industries.

Abstract: A fuel container for a fuel cell, comprises a liquid fuel chamber having a space for the storage of liquid fuel, a valve disposed in an outlet of the liquid fuel chamber to discharge the liquid fuel from the space or stop the discharge, a partition wall member movable through the space toward the valve, and a compressed gas chamber communicating with the space and storing compressed gas, the compressed gas imparting a back pressure to the partition wall member so that the partition wall member moves through the space toward the valve, the liquid fuel chamber and the compressed gas chamber being integral with each other. This fuel container is used as a fuel container for replenishing fuel to a fuel container installed in a fuel cell or can be installed into a fuel cell.

Abstract: An on-demand fluid dispenser to dispense fluid in response to gas generation by a gas cell. The on-demand fluid dispenser includes an expandable gas chamber, a fluid chamber, and an on-demand gas cell. The expandable gas chamber includes a moveable plunger forming a wall of the expandable gas chamber. The moveable plunger also forms a wall of the fluid chamber. The on-demand gas cell is configured to generate the gas on demand. The on-demand gas cell is also configured to direct the gas to the expandable gas chamber to expand the expandable gas chamber. Expansion of the expandable gas chamber moves the moveable plunger to reduce a volume of the fluid chamber and to dispense an amount of fluid from the fluid chamber.

Abstract: A pneumatic dispensing gun includes a receptacle having a conduit for receiving a pressurized gas, a cartridge supported on the receptacle, an end cap attached to the cartridge and having a path communicating with the conduit of the receptacle, and a regulating device attached to the end cap for regulating the pressurized gas or for allowing pressurized gas supplied to the dispensing gun to be released when required, and for preventing the pressurized gas supplied to the dispensing gun from being over pressurized, and thus for suitably and adjustably dispensing the flowable material from the cartridge.

Abstract: A container (1) having a first compartment (3) and a second compartment (5) separated by a movable gas impermeable partition (7) is used for storing and dispensing a gas for use in a process and receiving and storing a gas recovered from the process. Fresh gas is dispensed (9) from the first compartment (3) for use in a process and recovered gas is fed (11) to the second compartment (5), whereby a volume of the second gas displaces a volume of the first gas by movement of the partition (7) to enlarge the second compartment (5) relative to the first compartment (3).

Abstract: The subject invention is a system for dispensing a controlled amount of fluid product from a dispensing container which includes a pneumatically driven dispensing actuator. This actuator includes a dispensing cylinder and a movable dispensing piston. The dispensing piston is movable tinder pneumatic pressure within the cylinder, the cylinder including a volume of hydraulic fluid under the pneumatic pressure acting against the dispensing piston to selectively prevent movement of the dispensing piston. The invention further includes a means for selectively reducing the volume of the hydraulic fluid in the dispensing cylinder to allow the controlled movement of the dispensing piston. The controlled movement of the dispensing piston causes controlled displacement of the fluid product from the dispensing container. Advantageously, with the subject invention, a force may be generated and applied to a plunger, which can be accurately controlled.

Abstract: A method of dispensing a liquid, which handles a minimum amount of liquid without wasting it and to dispense and spray an exact amount of the liquid without precipitating solid particles. The method including the steps of regulating a flow rate of liquid in a flow passage by orifices 8-1, 8-2 while letting the liquid flow through flow passages 10-1 and 10-2 between syringes 5-1 and 5-2 by applying a pressure of 0.001 MPa to 10 MPa to liquid 6 including solid particles and filled in one syringe vessel 5-1 and by setting a pressure of liquid in the other syringe 5-2 at a lower level than the pressure of liquid in the syringe 5-1 and dispensing the liquid from the flow passage by an auto dispensing valve 1.

Abstract: A container for releasable pressurized gas or other active ingredient is provided. The container is packed with activated carbon loaded with adsorbed propellant. The container provides a replacement for the hydrocarbon or hydrofluorocarbon propellants currently used in aerosols, dusters and foghorns. A method for making such a replacement system is also provided.

Abstract: An expulsion apparatus for the expulsion of a substance from a container includes a receptacle and a sealing unit. The receptacle serves to hold a container containing a substance. The sealing unit and the receptacle are connected in a way that causes pressurizing the sealing unit to substantially seal the receptacle, and that subsequent pressurization of the sealing unit pressurizes the sealed receptacle.

Abstract: A pneumatic caulking gun includes a gun body, an air valve, a control unit, a trigger, a barrel, a push plate, a connecting base, a safety valve, and a push rod. Thus, the trigger is pressed to fill the pressurized air with the barrel successively to push the push plate forward to compress and squeeze the silicone gel, thereby injecting the silicone gel outward from the nozzle of the barrel automatically. In addition, the user only needs to slightly press the trigger by his one hand to squeeze the silicone gel outward, thereby facilitating the user operating the caulking gun, and thereby saving the manual work.

Abstract: The present invention discloses a technique for continually delivering an orthopaedic paste into a bone, which will harden in the bone and act as a medical implant. The present invention uses a replacement mechanism in delivering the paste stored in a chamber through a tube in fluid communication with the chamber, which includes invading the paste in the chamber with a small volume of recovery member such as a rod to replace the same volume of paste into the tube, and retreating the invading rod while applying a pressure to the paste in the chamber, so that a space created by the retreating is replaced by the paste, and repeating the invasion and the retreating alternately to continually delivere the paste through the tube.

Abstract: A container for holding and dispensing liquid having a container wall comprising a rigid portion that dimensionally defines the container, a liner portion disposed within the container adjacent to the rigid portion, and an adhesive layer disposed between the rigid portion and the liner portion. The adhesive layer removably secures the liner portion to the rigid portion such that the liner portion is capable of being separated from the rigid portion and collapsed within the container, for dispensing the liquid.

Abstract: There is a pneumatic mud stamp including an applicator, a tube-like member, a stopper, a retraction mechanism, ad a pneumatic control. The applicator is configured to apply mud in a pattern and includes a boot and a faceplate with a slot. The tube-like member is coupled to the applicator and includes a first chamber configured to hold mud, a second chamber configured to hold pressurized air, and a decoupling mechanism configured to open the tube-like member for insertion of mud therein. The stopper is slidably disposed within the tube-like member between the first and second chambers. The stopper provides a fluid tight seal therebetween. The retraction mechanism is configured to facilitate moving the stopper away from the applicator. The pneumatic control is configured to selectably dispose pressurized air into the second chamber.

Abstract: A device for dispensing a heated liquid, such as a hot melt adhesive, which includes a heated dispenser body having a liquid passage in communication with a liquid inlet and a liquid outlet. The dispenser body further includes a valve element having a circumferential groove therearound cooperating with a recessed portion of the dispenser body to define a cavity about the valve element. A flexible seal is situated within the cavity between the liquid passage containing the heated liquid and an upper area of the dispenser body. A first portion of the seal is configured to form a fluid tight seal within the recessed portion and a second portion is configured to form a fluid tight seal about the valve element during reciprocation thereof relative to the recessed portion, thereby preventing liquid from leaking out of the liquid passage past the flexible seal and into the upper area.

Abstract: An apparatus and method for dispensing controlled precise amounts of a hot-melt adhesive. A positive displacement dispenser which is mounted on a programmable motion system is connected to a hot-melt cartridge feed assembly by an inlet block. The dispenser, feed assembly, and inlet block contain electric heaters and thermocouples for maintaining the adhesive at a desired elevated temperature. A computer control system regulates the temperature in the dispenser, feed assembly, and inlet block and controls a dispensing motor in the dispenser. A preheater heats an adhesive cartridge prior to placement in the feed assembly.

Abstract: A manifold includes a plurality of inlet passages provided in fluid communication between an inlet and an outlet passage. A housing retains a pressurized gas cartridge in sealed fluid communication with each of the inlet passages. A check valve is located in at least one of the inlet passages. The check valve is biased to a closed position that prevents gas from flowing through the check valve to the inlet of the inlet passage. Thus, gas cannot exit through the inlet when a pressurized gas cartridge is not sealed thereto. The housing retains a viscous product cartridge and forms a gas enclosure separated from a product enclosure by a movable wall. The gas from the pressurized gas cartridges passes into the gas enclosure and generates a force on the movable wall to dispense product from the product cartridge.

Abstract: A cordless device for dispensing a viscous material including housing components for a product cartridge, a DC motor, an air pump, and a rechargeable battery. The device has a pressure limiting switch that maintains a pre-determined pressure of compressed air in a gas enclosure. A manually actuated trigger, when depressed, is adapted to open a flow valve allowing the device to forcefully dispense the viscous material from the product cartridge.

Abstract: Apparatus far equilibrating differences between flow rates into and out of closed pipeline systems, which apparatus includes a tank having a supply line and a discharge unit, with a displaceable plate; the supply being fed to the tank through the displaceable plate, the discharge from the tank being through an outlet at the bottom of the tank and the plate moving upwards or downwards to automatically change the volume of the tank in accordance with differences between the supply rate and the discharge rate.

Abstract: A dispenser has a syringe having a nozzle at one end thereof and a plunger fitted in the syringe from the other end of the syringe. One end of a pipe is connected to a portion of the syringe between the one end and the other end of the syringe. A liquid material tank is connected to the other end of the pipe. The liquid material tank is arranged so that a level of the liquid material in the liquid material tank is higher than in the syringe. The dispenser can be used for drip injection method for producing a liquid crystal display device to stably drip droplets of a liquid crystal onto a substrate of a liquid crystal display device.

Abstract: An inlet is adapted to receive pressurized gas from a CO2 gas cartridge. A variable compression member has a normal height, under normal operating temperature conditions, adapted to provide a normal compressive force between the gas cartridge and the inlet to effectively seal the gas cartridge to the inlet. The variable compression member also has a reduced height, under heightened temperature conditions, adapted to provide a reduced compressive force between the gas cartridge and the inlet to allow pressurized gas to escape between the gas cartridge and the inlet. A seal member is compressed between the gas cartridge and the inlet. The inlet may be part of a pneumatic dispensing device. The gas inlet is in fluid communication with a gas enclosure to enable pressurized gas delivered through the inlet to provide a dispensing force on a product cartridge to cause dispensing of the viscous product.

Abstract: A pressurized gas cartridge drives a dispensing device for viscous product cartridges. The dispensing device and the viscous product cartridge form a gas enclosure separated from a product enclosure by a movable wall. A valve is driven by a rack and pinion valve drive mechanism between an open position and a closed position upon rotation of the pinion. The rack rotates the pinion upon linear movement thereof. A trigger is adapted to impart linear movement to the rack upon manual actuation of the trigger. The open position of the nozzle valve permits viscous product to flow through the dispensing passage, and the closed position of the nozzle valve prevents viscous product from flowing through the dispensing passage. The interface between the trigger and rack is designed to operationally disengage rather than transmit a force therebetween that is capable of damaging the device.

Abstract: A device for dispensing a liquid includes a dispenser body having a liquid passage and an air passage. A valve stem is mounted in the dispenser body and reciprocates between an open position allowing liquid flow and a closed position preventing liquid flow. A pre-assembled unitary seal assembly is threadably engaged with the dispenser body and includes a housing having a bore therethrough. The housing includes a first and second seal members positioned within the bore that each form a dynamic seal with the valve stem to prevent air and liquid from leaking out of the air and liquid passages. The housing further includes a static seal between the outside of the housing and the dispenser body. The valve stem may be moved to an open position by pressurized air acting on a piston and moved to the closed position by a spring-return mechanism to selectively dispense the liquid.

Abstract: A caulking gun has a tubular chamber to surround sleeve-like rigid tubes and compressible sausage type containers containing viscous materials including sealants, adhesives, caulking, mastics and the like. When rigid tubes are loaded into the chamber, compressed gas is allowed to surround the sleeve and a plunger loaded within the rigid tube to equalize pressure around the outside of the rigid tube. If a sausage type container is loaded into the chamber, a removable plunger is also provided to form a tight seal between the perimeter of the plunger and the inner surface of the chamber. Compressed gas introduced into the chamber preferentially acts on the plunger and an underlying end wall of the sausage to expel the material, without imparting any significant pressure to other parts of the sausage. The caulking gun includes a variable flow rate nozzle which may be removed from the device. The nozzle may be replaced with similar or different nozzle pieces of various shapes and sizes, if desired.

Abstract: An improved seal and stabilizing system for a piston head in a tank cylinder provides a better mechanism for discharging and wiping a cylinder when heavy liquids such as chocolate or peanut butter are being dispensed. The seal system now includes a free-floating block inside the seal and grooves in the inner lower part of the hollow seal. The block and grooves keep the upper, outer part of the seal from deforming away from the inner surface of the cylinder that facilitates complete discharging and wiping of the material from the cylinder tank. The tensioning mechanism of the seal is made from a unitary and annular ring T-ring that easily slides on the rear surface of the piston head. In order to stabilize the movement of the piston head down the cylinder, clockwise and counterclockwise springs are provided for the stabilizing shoes. The dual spring arrangement prevents coil binding of the springs.

Abstract: The present invention relates to a two-compartment aerosol device containing a hair treatment composition in a first compartment and a compressed gas chosen from air, nitrogen and carbon dioxide, and mixtures thereof, in a second compartment, where the hair treatment composition contains, in an alcoholic or aqueous-alcoholic cosmetically acceptable medium, at least one hair sheen agent and/or conditioner in a concentration of greater than 0.4% by weight relative to the total weight of the composition.

Abstract: A device for dispensing fluid material onto a substrate including a base body with a flow channel for receiving the fluid material and a movable valve body positioned in the flow channel. The valve body is movable in a downstream direction into an open position to release a flow of the fluid material into the flow channel and is movable in an upstream direction into a closed position to interrupt the flow of the fluid material into the flow channel. A drive device moves the valve body between the open position and the closed position. A cylindrical chamber is positioned in the flow channel and the valve body includes a piston movable within the cylindrical chamber. The piston is sealed within the cylindrical chamber in such a way that when the piston moves in a first direction within the cylindrical chamber, the fluid material is displaced from the flow channel and when the piston is moved in a second direction opposite to the first direction, the fluid material is drawn into the flow channel.