Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D83/00—Containers or packages with special means for dispensing contents
  • B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
  • B65D83/28—Nozzles, nozzle fittings or accessories specially adapted therefor
  • B65D83/30—Nozzles, nozzle fittings or accessories specially adapted therefor for guiding the flow of the dispensed content, e.g. funnels or hoods
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
  • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
  • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
  • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
  • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
  • B05B12/02—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D83/00—Containers or packages with special means for dispensing contents
  • B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
  • B65D83/141—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant specially adapted for specific contents or propellants
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D83/00—Containers or packages with special means for dispensing contents
  • B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
  • B65D83/16—Actuating means
  • B65D83/26—Actuating means operating automatically, e.g. periodically
  • B65D83/262—Actuating means operating automatically, e.g. periodically by clockwork, motor, electric or magnetic means operating without repeated human input
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
  • B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
  • B05B12/20—Masking elements, i.e. elements defining uncoated areas on an object to be coated

Definitions

• the present invention relates to the field of delivering a fluid contained in an aerosol and maintained in a device in the form of a housing.
• the present invention relates more particularly to a device making it possible to control the ejection of the fluid at the outlet of said device and to limit its application to the only zone to be treated and to modulate its mode of action and time in a pre-defined manner. -depended according to the type of application to be processed.
• the fluid applied is a cold fluid intended for therapeutic, cosmetic or technical use (cryotherapy, etc.).
• the device according to the invention is intended more particularly, but not exclusively, for all treatments of dermal infections such as warts, corns, growths, and brown spots or any local application on the skin, mucous membranes, tissues or any other part of the human or animal body, be it medical, technical, or cosmetic.
• US Pat. No. 5,098,428 discloses a cryosurgical instrument in contact with a liquefied refrigerant gas contained in a thermally insulated container.
• the pressure of the liquefied refrigerant gas can be increased in the vessel by means of a balloon. This pressure causes the liquefied refrigerant gas to be projected through the nozzle until normal venting is restored.
• this instrument is very sensitive to the conditions of use (pressure atmospheric, temperature) and the remaining amount of liquefied gas that varies over successive uses. As a result, the characteristics of the projected gas vary from one use to another in terms of pressure, temperature and quantity.
• a device for administering a certain amount of a liquid refrigerant comprises: a container for containing the liquid refrigerant; a normally closed valve connected to said container; and actuating means for temporarily opening the valve, comprising positioning means for placing at least a portion of the delivery member in position so that the refrigerant leaving the valve can reach the valve element.
• the positioning means comprises a chamber which is connected to the valve and into which the refrigerant is introduced during the actuation of the valve, this chamber being designed to receive at least a part of the valve. element of administration.
• the jet of fluid should be more or less wide. This is all the more important as the fluid is used for therapeutic, technical or cosmetic purposes.
• the jet needed to treat the entire area infected must be adapted to the area occupied by the infection.
• a jet covering a surface application superior to the area to be treated has the disadvantage of treating uninfected areas and therefore to cause possible damage.
• a jet partially covering the area to be treated leads to repeating fluid applications until the infected area is fully treated. However, such repetitions help to make the use of such devices tedious. They also contribute to subject parts of the area to be treated to multiple applications of fluid, applications that can then cause damage to the parties concerned.
• the present invention intends to overcome the drawbacks of the prior art by proposing a device making it possible to control the ejection of the fluid at the outlet of said device and to limit its application to the only zone to be treated and to modulate its mode of action. pre-established depending on the type of application to be processed.
• the present invention relates to a device for applying a fluid to a localized and determined zone, of the type comprising a reserve of the fluid in the form of an aerosol and means for triggering the release of the fluid from the reservoir to an ejection nozzle having a conduit and an outlet port through which the fluid is ejected at a pressure above atmospheric pressure in a controlled and targeted manner in terms of target diameter in the application zone.
• the fluid has a boiling temperature of less than or equal to -20 ° C., and a latent heat of vaporization of less than or equal to 200 kJ / kg.
• the fluid has a boiling point of the order of -24 ° C., and a latent heat of vaporization of the order of 160 kJ / kg.
• the fluid is kept in the reserve under conditions such that it can be ejected at a pressure of between 6 and 8 bar.
• the fluid comprises difluoroethane.
• the duct has a length of between 3 and 9 millimeters and preferably of the order of 6 millimeters, the outlet orifice having a diameter of between 0.1 and 0.8 millimeters and preferably of the order of 0.3 millimeters.
• a preferred configuration of the invention will be a nozzle comprising a conduit having a length of 5.5 millimeters and whose exit orifice will have a diameter of 0.20 millimeters.
• the surface of the nozzle comprising the outlet orifice has a convex, concave or flat shape.
• a protective tip having a sufficient height, preferably between 10 and 40 millimeters.
• height is meant the distance between the end of the conduit constituting the outlet of the fluid and the area to be treated.
• a preferred configuration of the invention as will be described later, will be a protective tip which, when affixed to the ejection nozzle, provides a distance of 33 millimeters from the area to be treated.
• the protection tip advantageously comprises one or more pressure release openings. These openings make it possible to ensure a sufficiently large escape of the fluid in the gaseous state so as to avoid the formation of vortices at the inside of the protective tip which cause deviations in the path of the fluid during ejection of the nozzle.
• the opening or openings are located in the lower part of the protective cap, and preferably in the lower quarter of said cap.
• the protective tip has the necessary technical characteristics so that the user can ensure the proper functioning of the control and the effectiveness of the device.
• it is transparent, or not, to allow to perform during the action a visual control of the latter to verify the application and efficiency on the area to be treated.
• the protective cap is of frustoconical shape open towards the application zone, the height and the solid angle of the cone being such that the base of the cone has a diameter of between 1 and 3 centimeters.
• the solid angle of said protective tip is greater than or equal to that of the fluid jet at the outlet of said nozzle.
• a solid angle of 9 degrees will be provided.
• the localized zone on which the fluid is applied corresponds to the base of the cone.
• the tip comprises a lid covering the area delimited by the cone, said lid being provided with an orifice defining the localized area of application of the fluid.
• the surface of the seal comprising the orifice is partly raised relative to the localized area of 'application. This zone can be raised by about 4 millimeters.
• the lid has the necessary technical characteristics so that the user can ensure the proper functioning of the control and the effectiveness of the device.
• it is transparent or not, but allows a visual control of the area to be treated during the application so as to verify the effectiveness.
• said device further comprises a timer controlling the duration of release of the fluid.
• the zone on which the fluid is applied is a localized area of the skin. It may be for example an area of the epidermis with a dermal infection, such as a wart or a brown spot or any other cosmetic, technical need on the human or animal body.
• the nozzle will advantageously have a duct having a length of 5.5 millimeters and an outlet having a diameter of 0.20 millimeters.
• the fluid used in the gaseous state is difluoroethane.
• the surface of the nozzle, of convex shape advantageously has a radius of curvature of 1 cm.
• the frustoconical protective tip has a height of 3.3 centimeters and a solid angle of 9 degrees, and the opening of the lid a diameter of 5 to 9 millimeters and preferably of order of 6 millimeters.
• the nozzle has a duct of length of 3 to 9 millimeters and preferably of the order of 6 millimeters whose outlet orifice has a diameter of 0.1 to 0.8 millimeters and preferably of the order of 0.3 millimeters.
• the surface of the nozzle is concave, with a radius of curvature of 0.2 centimeters.
• the frustoconical protective tip has a height of 2 centimeters and a solid angle of 0.12 steradians.
• FIG. 1 illustrates a sectional view of the ejection nozzle of an application device a fluid according to a first embodiment of the invention
• FIG. 2 illustrates a perspective view of the timer allowing the delivery of the fluid by the device of FIG. 1, said timer being at a standstill
• Figure 3 illustrates a top view of the timer of Figure 2, said timer being operated
• Figure 4 illustrates a partial view of the device of Figure 1 and the associated push-button
• FIG. 5 illustrates a torn view of a lateral face of a device for applying a fluid according to a second embodiment of the invention
• Figures 6 and 7 illustrate torn views of the other side face of the device of Figure 5; and Figure 8 illustrates a detailed view of the timer trigger system.
• the following description relates to a device for delivering a fluid allowing the application of a defined quantity of a fluid to a localized and determined area of the skin according to a determined duration of application in order to treat dermal infections.
• the fluid used under pressure at room temperature, is used in its liquid phase.
• the fluid has a boiling point of less than or equal to -20 ° C. and a latent heat of vaporization of less than or equal to 200 kJ / kg.
• the particular combination of these two characteristics for the fluid makes it possible to obtain an optimal efficiency for the cryoprocessings considered.
• the boiling temperature makes it possible to obtain the necessary cold, and, the relative weakness of the latent heat of vaporization, a rapid evaporation which induces a good transmission of the cold without risking a flow of fluid outside the zone. 'application. Therefore, the use of the fluid according to the invention makes it possible to obtain a "dry" and intense cold, while limiting the aggressiveness of the treatment on the application zone.
• the fluid is a type 152A HFC with a boiling point of -24 ° C and a latent heat of vaporization of 160 kJ / kg.
• the quantity and duration of application of said fluid are defined according to the use for which said device is intended.
• the zone is localized on 3 to 10 millimeters in diameter and preferably of the order of 6 millimeters and the fluid will be advantageously ejected during at least one second on said area.
• the area is localized on 0.5 to 2 centimeters and preferably of the order of 1.5 cm and the fluid will advantageously ejected for at least a second on said area.
• FIG. 1 illustrates a sectional view of such an ejection nozzle (2), according to a first embodiment.
• Said nozzle (2) is constituted by a hollow body in which is housed an envelope (3) defining a cavity (5) intended to receive the fluid from a reserve (not shown) through a conduit (4) .
• the upper part of said envelope (3) is formed by a cover (8).
• Said nozzle (2) comprises a duct (6) passing through on both sides the body of said nozzle (2) and the casing (3) housed in said nozzle (2).
• said duct (6) is provided with a tubular ferrule (9), one of the ends of said ferrule (9) opening a few millimeters into the cavity (5), the other end emerging on the head (7). ejecting said nozzle (2).
• Said ferrule (9) has an inner diameter of 0.1 millimeter to 0.8 millimeter and preferably of the order of 0.3 millimeters and a length of 3 to 9 millimeters and preferably of the order of 6 millimeters. .
• said ferrule (9) ensures the flow of the jet and contributes, with the shape of the head (7) of ejection of said nozzle (2), to the shape of the jet of the fluid.
• the fluid jet is thin, and when it is of shape concave, the fluid jet is wide. It is thus possible, by acting on the shape of the head (7) of ejection of said nozzle (2) and on the inner diameter of said ferrule (9) to adapt the shape of the jet to the infection to be treated.
• jet term is meant a gas / liquid mixture.
• a slide (10) is slidably mounted in the cavity (5) formed by the envelope (3). More particularly, said slide (10) is configured to slide from a position closing the end of the ferrule (9) (or conduit 6) opening into said cavity (5) (shutter position) to a position leaving the end of said ferrule (9) open to the fluid, and vice versa.
• the closure of said ferrule (9) is provided by an elastomer nozzle (11) disposed on the underside of said spool (10) in contact with said ferrule (9) so as to seal.
• the sliding of said drawer (10) is performed under the action of a magnetic field controlled by a timer device described later, said drawer (10) being made at least partly of a magnetic material.
• the establishment of the drawer (10) in the closed position is obtained by means of a spring (12) disposed partly around said drawer (10).
• the slide (10) Under the action of the magnetic field disposed above the cover (8), the slide (10) is moved from its closed position to its open position, to allow evacuation by the ferrule (9) fluid held prisoner between the casing (3) and the drawer (10). The displacement of said drawer (10) is stopped by the cover (8).
• the spring (12) pushes the drawer (10) towards the ferrule (9) until it obturates again the orifice of the ferrule (9) by the tip (11) made of elastomer of said drawer (12).
• Said device (1) is further provided with a protective cap (13).
• Said protective cap (13) is intended to establish a sufficient distance between the area to be treated (skin) and the cold fluid outlet.
• Said protective tip (13) also aims to prevent contact of the head (7) ejection nozzle (2) with the infected area to be treated. Indeed, it is imperative to avoid conveying on the parties to treat contagions by any risky contact to cause a renewal of the pathologies supposed to be treated or to develop other pathologies by indirect effect.
• said protective tip (13) advantageously has a height of between 10 and 20 millimeters.
• the wall of said protective cap (13) is provided with one or more openings.
• Said openings are preferably located in the lower quarter of the length of said tip (13), or at least in the last third of the length of said tip (13). The number of said openings will be chosen so that the velocity of the fluid at the openings is negligible compared to the ejection speed of the cold fluid.
• said protective tip is provided with one or more openings.
• (13) is transparent to facilitate its positioning around the area to be treated.
• said protective tip (13) is of frustoconical shape open towards the zone to be treated.
• said device (1) further comprises a cap (14) which is fixed on the free end of said protective cap (13).
• Said cover (14) is intended to limit the area on which the fluid is applied.
• said cap (14) comprises an orifice (15) which, when said cap (14) is attached to the end of said protective cap (13), is disposed in the axis of ejection of said fluid.
• said orifice (15) preferably has a diameter of 3 to 10 millimeters and preferably of the order of 6 millimeters.
• said cap (14) is transparent to facilitate the positioning of the orifice (15) facing the area to be treated.
• Figures 2 and 3 illustrate a perspective view of the timer (22) triggering the action of said magnet on the spool (10) of the nozzle (2), said timer (22) being respectively stopped and in operation.
• timer means the elements constituting the timer itself, as well as the means implemented to trigger its operation and / or cause it to stop.
• Said timer (22) is intended to control the duration of application of said fluid to the area to be treated by controlling the duration of release of the fluid.
• the release of the fluid is generated under the action of a push-button (40) illustrated in Figure 4, said push-button (40) being slidably mounted on the body (41) of said device (1).
• Said timer (22), of mechanical type, comprises a gears gear, among which: - a first wheel (23) actuating the start and stop of the timer (22). This wheel (23) will be named later "cycle wheel”.
• the cycle wheel (23) is connected to the push-button (40) via a lever arm (27) pivotally mounted about a pivot axis AA1 of so as to move from a lowered position on said cycle wheel (23) to a raised position, and vice versa.
• the lever arm (27) comprises stop means for holding the cycle wheel (23) stopped.
• the stop means consist of a lug (28) disposed at the end of said arm (27), which lug (28) is configured to lodge in a light (29) formed in the cycle wheel (23).
• the cam wheel (24) actuates the release or stopping of fluid release via a release arm (30).
• said release arm (30) has an end secured to the cam wheel (24), the other end being provided with a magnetic field actuating the opening or closing of the nozzle (2) ejection of the fluid reserve.
• the operation of the timer (22) of the device (1) is as follows.
• the lever arm (27) when held in the lowered position, blocks the cycle wheel (23) by means of the lug (28) of said lever arm (27), said lug (28) being housed in the light (29). ) of the cycle wheel (23).
• the timer (22) is then in the off state, all the gears being held in a locked position.
• Actuation of the pushbutton (40) triggers the pivoting of said lever arm (27) which moves from its lowered position on said cycle wheel (23) to a raised position, so that said pin (28) said lever arm (27) is moved out of the lumen (29).
• the cycle wheel (23) is then driven by a drive wheel (25) by means of a tension spring (not shown).
• said spring fixed by one of its ends to the frame, is mounted wound around said drive wheel (25).
• the spring is advantageously wound so as to have an energy allowing the delivery of at least ten doses of fluid, or ten treatments, a complete revolution performed by the cycle wheel (23) corresponding to the delivery of a dose of fluid.
• said cycle wheel (23) is in contact, via an escape wheel (26) and a pinion (31) mounted on the axis of the escape wheel (26), with a metal piece (32) able to oscillate in response to a biasing of the cycle wheel (23).
• the oscillation frequency of said metal part (32) is related to the shape and mass of the metal part itself, but also to the shape of the escape wheel (shape and number of teeth).
• the metal piece (32) is intended to act on the speed of the timer (22).
• the cam wheel (24) actuates by means of the cam (33) on said cam wheel (24) the release arm (30) of said fluid to open and then closing the nozzle (2) of said device (1).
• the race of the timer (2) then ends either by an automatic repositioning of the pin (8) of the lever arm (7) in the lumen (9) of said cycle wheel (3) (in which the user has actuated and released the press-button (40) before the end of a treatment cycle), or by the contact of a lug formed on the wheel against the lever arm (7) (in which case the user exerts a continuous action on the push-button).
• the timer (22) advantageously comprises secondary safety stop means (not shown).
• Said safety stop means are carried by the cycle wheel (23). More specifically, said safety stop means consist of a lug formed on the face of the cycle wheel
• the latter is such that a single dose can not be applied to the area when a first pressure (continuous or not) on the push button (40) has been performed, said dose being applied until the delivery of the quantity and predetermined time of fluid.
• Said device (50) is formed of two half-shells (51, 52) snapped onto one another, each of the half-shells constituting a lateral face of the device (50).
• the latching is achieved by means of six tabs (53) distributed along the edge of the half-shell (52), on the inner face, which tongues (53) are intended to be respectively received in a housing (54) provided and positioned for this purpose on the inner face of the shell (51).
• the housings (54) and the tongues (53) are configured not to allow, or very difficult to remove said tabs once the two half-shells latched.
• a container (65) constituting the fluid reserve is housed between these two half-shells (51, 52).
• Said container (65) comprises an inner bag and a crimped pump which, once depressed, releases the gas (not shown).
• the selected gas in this case R152A, is injected into the pocket and between the walls of the pocket and the container, so as to create, with the air around the pocket, a pressure between the walls greater than the pressure. equilibrium (or saturation vapor pressure) of the R152A in the pocket.
• the ratio of these pressures will be determined according to the rate of ejection of the desired gas. Care should be taken to avoid, however, that the gap between them is too great to avoid a gas diffusion too fast.
• a mass of 2.5 g (corresponding to a pressure of between 6.2 bar and 7.6 bar at 20 ° C.) between the walls of the pocket and the container and of 9 g (corresponding to a pressure of between 8.0 and 9.5 bars at 20 ° C.) inside the pocket, to allow the delivery of 13 gas ejections, and therefore 13 treatment doses, with a pressure in the pocket ranging from 7.6 bars at the first ejection to 6.4 bars for the 13th ejection.
• the container (65) is held between the half-shells (51, 52) in a receiving casing (60) provided for this purpose.
• Said envelope (60) is pivotally mounted on the edge of the semi-bottom wall of the shell (52) about a transverse axis AAl.
• the nozzle of the device (50) is constituted by a nozzle (66) whose outlet orifice advantageously has a diameter of 0.20 millimeters.
• the dimensions and shape of the nozzle (66) are selected to allow control of the flow and direction of the gas. More specifically, the dimensions of the nozzle (66) are based on the gas used and its properties, as well as the pressure maintained in the container pocket (65). The objective is to obtain a gas ejection in a very short time, of the order of three seconds, with a level of cooling on the skin, around -5 °, such that a thermal shock is caused in seconds (of the order of five seconds) without pain.
• Said device (50) further comprises, like the device previously described, a protection tip
• these openings (68) are located in the lower half of the tip (67) (that is to say the half closest to the skin when said tip is positioned against the skin). Said openings (68) are sized and arranged to allow a gas exhaust large enough not to create vortices inside said tip (67) can deflect the trajectory of the jet.
• the length of the protective tip (67) is a function of the optimal distance between the outlet of the nozzle (66) and the skin, that is to say 33 millimeters: below, the speed of the fluid provokes projections of the fluid on the walls of the protective tip, thus generating a loss of fluid; above, evaporation is too important.
• FIG. 5 illustrates the device (50) whose half-shell (52) has been removed to show part of the timer trigger system.
• the timer release system includes a reset handle (55) integral with a wheel (56), hereafter referred to as a "cam wheel”.
• the cam wheel (56) is intended to actuate the release or stopping of fluid release. This actuation will be described later.
• a spring (58), intended to supply the energy necessary to deliver a dose of fluid, is fixed, wound, by one of its ends to the cam wheel (56), the other end being fixed on the face ( 59) of the half-shell (51) constituting the bottom half-wall of the device (50). It is held between the reset handle (55) and the cam wheel (56).
• Said means comprise a trigger lever and a rocker lever (61).
• the triggering lever is constituted by said envelope (60), whose pivoting movement is actuated by means of a trigger button (63).
• the trigger lever will then be numbered 60.
• the rocker lever (61) is arranged to have an end (70) remaining in contact with the cam wheel (56).
• the latter thus has a face on which is mounted the reset lever (55), the other face being configured to receive the friction end (70) of the rocker lever (61).
• Figure 8 illustrates a view of the face of the cam wheel (56) for receiving the end (70) friction of the rocking lever (61).
• the cam wheel (56) comprises a guide rib (71) for guiding, on its outer periphery (72) the rocker lever (61).
• the outer periphery (72) of the guide rib (71) is provided with an extension (73) constituting a boss in front of the locking lug for the rocker lever (61) when resetting the handle (55). Locking of the rocking lever (61) is effected by the face (74) of the extension (73).
• the cam wheel (56) further comprises a stop tab (75) for stopping the rocking lever (61) in its movement, said stop tab (75) being preceded by a boss (77).
• the movement imposed on the rocking lever (61) by the boss (77) causes the stopping of the delivery of the fluid via the hook piece (63). Stopping the lever toggle (61) by the stop tab (75) causes, for its part, the locking of the trigger lever (60).
• the stop tab (75) has a shape in ⁇ .
• said cam wheel (56) has a second rib (76) for holding and guiding the rocking lever (61) between the two ribs (71, 76).
• This second rib (76) has the advantage of not requiring the necessary spring effect for a rocker lever (61) when the cam wheel (56) comprises only one rib (71).
• the rocking lever (61) is secured to the trigger lever (60) via a hook piece (62).
• the timer associated with the cam wheel (56) comprises six parts which are a plate, an anchor, two palms and two gears.
• the operation of the fluid delivery system is as follows.
• the reset lever (55) In order to start the timer, the reset lever (55) is turned, which drives the cam wheel (56) in its movement. Said handle (55) is rotated until the rocker lever (61) comes to lock against the extension (73) constituting the locking tab. At the same time, the spring (58), held between the reset lever and the cam wheel, is driven by the movement of the cam wheel (56), winding on itself.
• priming is performed by turning the reset lever (55) by half a turn.
• the fluid application device (50) is then ready to be used for delivery of a defined fluid dose for a determined period of time.
• the fluid delivery operation is initiated by manually pushing the trigger button (63) upwardly from the device (50) towards the nozzle.
• said trigger button (63) drives the trigger lever formed by the envelope (60) in a pivotal movement towards the shell (52).
• the triggering lever (60) causes the lowering of the hook piece (63), which raises the rocker lever (61) to allow passage of the extension (72).
• the rocking lever (61) is no longer locked with the cam wheel (56), the latter is rotated under the action of said spring (58). The timer is then triggered.
• the trigger lever (60), pivoting supports the bottom of the cylinder, giving the opening stroke of the pump crimped into the container (65), which releases the gas.
• the gas is then delivered until the rocker lever (61) is brought into contact with the boss (77) provided on the cam wheel (56).
• the cam wheel (56) continues to rotate until the rocker lever (61) reaches the stop tab (75).
• the movement of the trigger lever (60) is then locked.

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• Chemical & Material Sciences (AREA)
• Dispersion Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
• Nozzles (AREA)
• Vacuum Packaging (AREA)

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Publications (1)

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ID=36648349

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• 2006
  • 2006-03-31 FR FR0602832A patent/FR2885539B1/fr not_active Expired - Fee Related
  • 2006-04-28 EP EP06764572A patent/EP1874657A1/de not_active Withdrawn
  • 2006-04-28 EA EA200702359A patent/EA200702359A1/ru unknown
  • 2006-04-28 CA CA002605996A patent/CA2605996A1/fr not_active Abandoned
  • 2006-04-28 US US11/919,159 patent/US20080208183A1/en not_active Abandoned
  • 2006-04-28 WO PCT/FR2006/000967 patent/WO2006114532A1/fr not_active Ceased
• 2007
  • 2007-11-28 NO NO20076151A patent/NO20076151L/no not_active Application Discontinuation

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