Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
  • B05B11/0005—Components or details
  • B05B11/0027—Means for neutralising the actuation of the sprayer ; Means for preventing access to the sprayer actuation means
  • B05B11/0032—Manually actuated means located downstream the discharge nozzle for closing or covering it, e.g. shutters
• • 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 or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
  • B65D83/16—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant characterised by the actuating means
  • B65D83/20—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant characterised by the actuating means operated by manual action, e.g. button-type actuator or actuator caps
  • B65D83/205—Actuator caps, or peripheral actuator skirts, attachable to the aerosol container
• • 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 or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
  • B65D83/56—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant with means for preventing delivery, e.g. shut-off when inverted
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
  • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
  • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
  • B05B11/1042—Components or details
  • B05B11/1043—Sealing or attachment arrangements between pump and container
  • B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
  • B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
  • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
  • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
  • B05B11/1042—Components or details
  • B05B11/1059—Means for locking a pump or its actuation means in a fixed position
• • 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 or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
  • B65D83/16—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant characterised by the actuating means
  • B65D83/22—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant characterised by the actuating means with a mechanical means to disable actuation

Definitions

• the present invention relates to a fluid dispenser head intended to be associated with or mounted on a fluid reservoir.
• dispenser head here means the complete assembly intended to be mounted on a reservoir to constitute a fluid dispenser. By actuation of this head, fluid is removed from the reservoir and dispensed through a dispensing orifice.
• Such dispensing heads are frequently used in the fields of perfumery, cosmetics or even pharmacy.
• the dispensing head comprises a fluid dispenser member, such as a pump or a valve.
• the dispensing member generally comprises a body fixedly mounted relative to the reservoir and a valve stem movable axially back and forth relative to the body.
• the dispensing head also includes a pusher mounted on the valve stem and axially reciprocable to drive the valve stem.
• the dispensing head also comprises a dispensing orifice connected to the valve stem.
• the only possible movement of the pusher is a reciprocating axial displacement printed by the user who presses with the aid of one or more finger (s) on a thrust surface. formed by the pusher.
• the pusher being directly mounted on the valve stem, its displacement directly causes the displacement of the valve stem.
• the pusher and the valve stem are integral with each other and move together in one piece at the same time.
• dispensing heads are already known which are provided with pushers displaceable in rotation with respect to their axis of displacement in order to perform a function of locking the pusher.
• the pusher can be rotated between a locked position in which it can not be moved axially and an unlocked operating position, in which the user can press the pusher and move it axially back and forth to distribute fluid product.
• the pusher still remains coupled directly to the valve stem so that they are forced to move axially together at the same time.
• document FR-2 904 294 is also known which describes a fluid dispenser head comprising a pump, a pusher provided with a dispensing orifice connected to the pump by a flexible conduit, as well as actuating means for driving the pusher in rotation and in axial displacement between a low axial position and a high axial position.
• An internal cam system makes it possible to transform the rotary displacement of the pusher into an axial displacement.
• To generate the actuation of the system there is provided a rotary control ring that the user turns manually. The pusher is thus forced to move both axially and in rotation.
• the dispensing orifice Since the dispensing orifice is integral with the pusher, and the pump is fixed, the axial displacement of the pusher necessarily involves a plastic deformation of the flexible conduit which connects the orifice to the pump. In this dispensing head of the prior art, the dispensing orifice therefore moves axially with the pusher, not only when the head is actuated, but also when the pusher is rotated by means of rotation. actuating means. It has been observed empirically that the deformation of the flexible duct does not always take place as desired: indeed, it happens that the flexible duct is deformed in such a way that it forms a fold, thus preventing the fluid product from circulating to through. The flexible conduit crucially lacks flexibility and an acceptable solution to overcome this problem of flexibility is to achieve the flexible conduit overmolding. However, overmoulding requires a particular mold and considerably increases the cost price of the dispensing head.
• the present invention seeks to overcome the problems of the aforementioned prior art by defining a differently designed dispensing head, but still comprising a movable pusher by means of a rotary control ring and a cam system.
• the present invention proposes a fluid dispenser head intended to be mounted on a fluid reservoir to form a dispenser, the head comprising:
• a fluid product dispensing member such as a pump, comprising a body fixedly mounted relative to the reservoir and an axially reciprocable valve stem,
• a manually displaceable pusher axially reciprocating to move the dispensing tip and the valve stem, so as to dispense fluid
• a rotary control hoop that can be operated manually in rotation without any axial component in order to axially move the pusher between a storage position and an actuating position
• the dispensing head further comprising:
• the pusher of the dispensing head is not rotated by the control ring: it performs only an axial displacement, without rotating component. In other words, the pusher does not rotate relative to the tank.
• the pusher can therefore be oriented and indexed relative to the reservoir: this is particularly advantageous when the visible top of the pusher has an inscription, such as a logo, which will always be well disposed with respect to the tank.
• the rotary control ring certainly drives the tip and the cam means, but not the pusher, which is locked in rotation by the axial guide means.
• the dispensing head of the invention retains a global configuration substantially similar to that of the document of the prior art FR-2 904 294 because of the rotary control hoop: however, the pusher remains static in rotation and the cam means rotate.
• the nozzle is integral in rotation, and advantageously also in axial displacement, of the control ring.
• the dispensing nozzle is rotated by the nozzle, which is itself driven in rotation by the control ring.
• the conduit is flexible to allow manual axial movement of the pusher during the dispensing of fluid product.
• the cam means are rotated, advantageously by the duct.
• the conduit may be rigid, the cam means and the dispensing nozzle can then be integrally molded.
• the pusher comprises at least one axial guide pin engaged with the axial guide means and at least one cam pin engaged with the cam means.
• the pusher comprises a substantially cylindrical skirt defining an inner wall and an outer wall, the guide pin being disposed on the outer wall and the cam pin being disposed on the inner wall, or vice versa.
• the axial guiding means are formed by a guide sleeve which is fixedly engaged around the dispensing member.
• the guide sleeve comprises a radial window in which the nozzle moves when actuating the control collar.
• the pusher abuts on the guide sleeve in the storage position.
• the cam means are formed by a cam ring engaged around the dispensing nozzle and inside the pusher.
• the cam ring comprises a drive slot in which the conduit is engaged.
• control ring rotates on itself on the fixed guide sleeve which blocks the pusher in rotation, but which guides it axially.
• control ring drives the nozzle in rotation, which in turn drives the dispensing nozzle and the cam means in rotation.
• the result of the mutual movements of the constituent elements of the dispensing head is that the pusher moves only axially with the nozzle integral with the rotary control hoop.
• the conduit connecting the nozzle to the jet needs only a relative flexibility since the nozzle rotates with the nozzle. The flexibility of the conduit is used only during the dispensing of fluid product by manual depression of the pusher. Indeed, the nozzle remains fixed on the hoop, while the tip is moved axially.
• the dispensing head of the invention implements a minimum of parts, namely five parts, if one omits the pump.
• FIG. 1 is an exploded perspective view of a fluid dispenser according to a non-limiting embodiment of the invention
• FIG. 2 is an exploded perspective view in enlarged perspective of the fluid dispensing head of FIG. 1,
• FIG. 3 is a vertical cross-sectional view through the mounted distnbutor of FIGS. 1 and 2 in an inoperative storage position
• Figure 4 is a vertical cross-sectional view of the dispenser of Figures 1 and 2 in operative actuation position. Referring first to Figure 1 to explain in detail the structure of the various components of the dispensing head according to the invention.
• the dispensing head is intended to be associated with a reservoir of fluid product 1 which defines a body 10 and a neck 1 January.
• the body 10 delimits a useful volume which is that of the reservoir.
• the neck 1 1 defines an opening that communicates the interior of the body 10 with the outside.
• the neck 1 1 advantageously forms a projecting outer peripheral rim which defines a shoulder 12 facing downwards. This shoulder 12 will serve to hook the dispensing head on the reservoir.
• the reservoir is of revolution, but other forms can be envisaged.
• the dispensing head comprises six distinct constituent elements, namely a dispensing member 2, a guide sleeve 3, a dispensing nozzle 4, a cam ring 5, a pusher 6, 7 and a rotary control hoop 8. All these constituent elements can be made by injection / molding of suitable plastic material. Certain constituent elements may also be made of metal, such as for example the rotary control member or the pusher.
• the dispensing member 2 may be a pump or a valve comprising a body 20 defining a low inlet optionally provided with a dip tube.
• the pump or valve also includes a valve or actuating rod 21 which is axially movable back and forth within the body.
• the valve stem 21 defines an internal fluid delivery pipe which is in selective communication via an outlet valve with the interior of the body 20.
• the pump or valve may also be equipped with a fixing ring 22 provided with attachment lugs intended to engage below the shoulder 12 of the neck 1 1.
• the fixing ring 22 is here presented as a constituent element of the dispenser member. However, the fixing ring can also be in the form a separate element of the dispensing member which is attached to the dispenser member.
• the fixing ring is an integral part of the dispenser member. This is a quite classic design for a pump or a valve in the fields of perfumery, cosmetics or even pharmacy.
• the outlet valve By pressing on the valve stem 21, the outlet valve (not shown) opens and the fluid stored in the body 20 can flow outwardly through the rod 21.
• the guide sleeve 3 is fixedly mounted on the dispensing member 2, and preferably definitively. Consequently, the guide sleeve 3 is stationary, both axially and in rotation with respect to the reservoir 1.
• the guide sleeve 3 fulfills several distinct technical functions as will be seen below, once the other components of the dispensing head have been described. For the moment, the fixing sleeve 3 will be described in its structure.
• the guide sleeve 3 can be made by injection molding plastic material, like most other components of the dispensing head.
• the sleeve has a generally cylindrical general configuration of circular section, so that it defines a hollow interior. The sleeve is open on both ends.
• the sleeve comprises a double wall separated by a hollow annular.
• the inner wall 32 serves as a locking skirt for the fixing ring 22 engaged around the neck of the reservoir.
• the locking skirt 32 is engaged around the fixing ring 22, thus preventing the skirt 22 from disengaging from below the shoulder 12 formed by the neck 1 1.
• the outer wall which extends concentrically around the locking skirt 32 forms one or more flexible fastening tabs 38 intended to cooperate with the rotary control ring 8, as will be seen below.
• the guide sleeve 3 forms an axial vertical notch 35 which opens on the upper end of the sleeve.
• the indentation 35 is connected to a radial window 34 which extends over a portion of the periphery of the sleeve.
• the window 34 may for example extend over the quarter or the third from the periphery of the sleeve.
• the window 34 communicates with the upper end of the sleeve by the vertical notch 35.
• the inner wall of the guide sleeve 3 at its upper part, forms axial guiding means 36, in particular in the form of vertical grooves dug in the inner wall of the sleeve and opening on the upper end of the sleeve.
• the grooves are partially visible in Figure 2.
• the bottom of the grooves is located about a quarter of the height of the sleeve from the top.
• the dispensing nozzle 4 can be made in one piece, but preferably, it is made in two parts, as shown in Figure 2.
• the dispensing nozzle 4 comprises firstly a cap 42 connected to a nozzle door 44 through a conduit 43, which advantageously has a certain flexibility.
• the tip 4 also comprises a nozzle 45 engaged in the nozzle holder 44 and forming a dispensing orifice 46.
• the cap 42 is intended to be mounted on the free end of the valve stem 21 of the dispensing member 2.
• the fluid product from the rod 21 reaches the dispensing orifice 46 by passing through the cap 42, the duct 43 and the nozzle 45. In the mounted state, as shown in FIGS.
• the cap 42 caps the valve stem 21 and the duct 43 extends radially outwardly.
• the nozzle holder 44 is engaged in the radial window 34 and can move along the length of the window as will be seen hereinafter. To engage the nozzle holder 44 in the radial window 34, it is introduced through the axial notch 35. It may even be noted in Figure 4 that the nozzle holder 44 projects outwardly beyond the radial window 34.
• the cam ring is a substantially cylindrical piece that can be full.
• the ring is however open at its lower end so as to define a housing 52 for the cap 42.
• the cam ring defines on its outer wall one or more cam means 56, which are in the form of inclined hollow cam paths or helical. For example, three cam paths may be provided around the cam ring 5.
• the cam ring 5 defines a drive slot 54 which is arranged vertically and open on the lower end of the ring. This drive slot 54 is intended to receive the duct 43 of the dispensing nozzle 4, as can be seen in FIG. 4.
• the duct 34 causes the cam ring 5 to rotate.
• the cam ring 5 is engaged within the guide sleeve 3, with the cap 42 engaged within the housing 52 of the ring.
• the pusher here is made in two pieces, but it can also be made in one piece.
• the pusher comprises a push body 6 and a push cover 7.
• the body 6 can be made of plastic, while the cover 7 can be made of metal.
• the pusher body 6 has a generally cylindrical configuration with an open lower end and an upper end which can be opened.
• the pusher body 6 thus defines a substantially cylindrical skirt 61 comprising an outer wall and an inner wall.
• On the outer wall there are several guide lugs 63 which protrude radially outwards. These guide pins are slidably engaged inside the axial guide grooves 36 of the guide sleeve 3, as can be seen in FIGS. 3 and 4.
• cam pins 65 which protrude radially inwardly. These pins 65 are visible in Figures 3 and 4. It can be seen that the pins 65 are engaged within the cam paths 56 formed by the cam ring 5.
• the casing 7 is simply in the form of a bucket which is engaged around the skirt 61 of the pusher body 6.
• the pusher 6,7 is engaged with the guide sleeve 3 by the engagement of the guide pins 63 in the guide grooves 36, and co-operates also with the cam ring 5 by the engagement of the cam pins 65 in the cam tracks 56.
• the pusher is thus constrained to move only axially inside the guide sleeve 3, the axial displacement being generated by the displacement of the cam pins 65 in the inclined cam paths 56.
• the rotary control ring 8 defines a substantially cylindrical casing 82 which is partially closed at its upper end by a disc 81, leaving an opening 86 remaining.
• the casing 82 comprises a jet hole 84
• the control ring 8 is engaged around the guide sleeve 3, but can be moved in rotation about the sleeve 3 over a certain angle, which may for example be of the order of 90 °. To do this, the hoop 8 can form one or more radial recesses 83 which will cooperate by snapping with the latching lugs 38 of the sleeve 3.
• control ring 8 can rotate around the sleeve 3 in a limited manner, but not can not be removed from the sleeve 3, since blocked by the engagement of the tabs 38 in the recesses 83.
• the pusher 6.7 extends through the opening 86 of the record 81.
• the nozzle holder 44 with its nozzle 45 are engaged in the hole 84, and are integral with it, so that the nozzle holder and its nozzle are rotated when the control ring is rotated. 8.
• FIG. 3 it can be seen that the top of the covering 7 is arranged in the same plane as the disc 81.
• the pusher is thus entirely housed inside the control ring 8. In this position, it is not even possible to actuate the pusher, since the guide pins 63 rest at the bottom of the guide grooves 36 Alternatively or additionally, the lower edge of the pusher may abut a step of the sleeve.
• the cam ring 5 is fully engaged inside the pusher 6,7, the cam pins 65 being arranged at the lowest level of the cam tracks 56.
• the nozzle 45 is disposed at one end.
• the user can hold the tank with one hand and turn the control ring 8 with the other hand. It is also possible to grip the tank and rotate the band with one hand.
• the rotary displacement of the hoop 8 will cause the axial displacement and / or rotary of certain elements of the head. More specifically, the nozzle and its nozzle door are integral with the control ring 8, since fixedly engaged inside the hole 84. The nozzle and its nozzle holder will be driven in rotation, thereby causing the rotation of the conduit 43 and the cap 42 around or on the valve stem 21.
• the cam ring 5 since the cam ring 5 is rotationally integral with the dispensing nozzle 4 due to the engagement of the duct 43 in the axial slot 54, the cam ring 5 will also be rotated. .
• the guide sleeve 3 is fixedly engaged, that is to say without axial or rotary displacement, on the dispensing member 2.
• the pusher is locked in rotation in the sleeve 3 because the engagement of the guide pins 63 in the guide grooves 36.
• the pusher is forced to move axially under the effect of the rotation of the cam ring 5, since the cam pins 65 are engaged in the inclined cam paths 56.
• distribution member 2 static in axial / rotary displacement with respect to the reservoir
• dispensing nozzle 4 rotary without axial component (except actuation) with respect to the reservoir
• cam ring 5 rotary without axial component (except actuation) with respect to the reservoir
• rotary control ring 8 rotary without axial component with respect to the reservoir
• the dispensing member 2 and the sleeve 3 are perfectly integral with each other and static with respect to the reservoir; the tip 4 and the ring 5 are perfectly integral with each other and rotate relative to the tank without axial component except during the manual actuation of the pusher; the control ring 8 and the nozzle 45 rotate relative to the reservoir without any axial component; the pusher 6, 7 moves (only) axially without rotating component.
• the reservoir, the guide sleeve, the pusher and / or the control ring may have a section other than circular cylindrical.
• the pusher is not circular at its skirt 61, one can dispense with the guide pins 63, since the pusher will be prevented from rotating in the guide sleeve simply because of its shape. The pusher is then easier to mold.
• the opening 86 of the hoop must have a shape and / or a dimension that does not cause the pusher to rotate.
• the conduit 43 is not necessarily flexible. Indeed, it can be rigid, but it is then necessary to provide a nozzle hole 84 of form oblong so that the nozzle and its nozzle door can slide axially in the oblong hole during manual actuation of the pusher.
• the nozzle and its nozzle door are however still integral with the rotating hoop. In this case, it is even possible to integrally mold the tip 4 and the cam ring 5, with or without nozzle attached. This eliminates a constituent element.
• the guide sleeve 3 does not necessarily participate in the attachment of the dispensing member on the neck of the reservoir.
• the dispensing nozzle 4 can be molded in two or even three separate parts: the cap, the duct and the nozzle holder.
• the dispensing head of the invention it is possible to move the pusher between an inoperative low storage position and an operative high operating position without rotating it with the control ring.
• the nozzle is completely fixed during fluid dispensing, since mounted on the hoop, which is fixed when the user manually actuates the pusher.

Landscapes

• 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)
• Closures For Containers (AREA)
• Devices For Dispensing Beverages (AREA)
• Coating Apparatus (AREA)
• Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Priority Applications (6)

Applications Claiming Priority (2)

Publications (1)

Family

ID=42315739

Family Applications (1)

Country Status (8)

Cited By (1)

Families Citing this family (32)

Citations (2)

Family Cites Families (8)

• 2009
  • 2009-12-09 FR FR0958813A patent/FR2953497B1/fr not_active Expired - Fee Related
• 2010
  • 2010-12-07 ES ES10801636.1T patent/ES2553448T3/es active Active
  • 2010-12-07 EP EP10801636.1A patent/EP2509716B1/fr active Active
  • 2010-12-07 JP JP2012542601A patent/JP5667208B2/ja not_active Expired - Fee Related
  • 2010-12-07 US US13/509,644 patent/US8695852B2/en active Active
  • 2010-12-07 WO PCT/FR2010/052630 patent/WO2011070285A1/fr active Application Filing
  • 2010-12-07 BR BR112012014002A patent/BR112012014002B1/pt active IP Right Grant
  • 2010-12-07 CN CN201080050591.3A patent/CN102665928B/zh active Active

Patent Citations (2)

Also Published As

Similar Documents

Legal Events