CN105121784A - Vane-type rotary vacuum pump - Google Patents

Vane-type rotary vacuum pump Download PDF

Info

Publication number
CN105121784A
CN105121784A CN201380075760.2A CN201380075760A CN105121784A CN 105121784 A CN105121784 A CN 105121784A CN 201380075760 A CN201380075760 A CN 201380075760A CN 105121784 A CN105121784 A CN 105121784A
Authority
CN
China
Prior art keywords
vacuum pump
rotary blade
type vacuum
blade type
drive motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201380075760.2A
Other languages
Chinese (zh)
Inventor
D·穆勒
C·沙勒
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ateliers Busch SA
Original Assignee
Ateliers Busch SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ateliers Busch SA filed Critical Ateliers Busch SA
Publication of CN105121784A publication Critical patent/CN105121784A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2220/00—Application
    • F04C2220/10—Vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings

Abstract

The present disclosure relates to a vane-type rotary vacuum pump comprising a drive motor (1, 17) interacting with a vane-pump vacuum chamber (2), in which pump all the pump surfaces that are visible from the top are arranged in such a way that they have no elements likely to retain liquids or solids. The drive motor (1) may in particular be an air-cooled asynchronous motor or a water-cooled asynchronous motor with a case that, with the cylinder (18), forms a space in which a cooling fluid can circulate.

Description

Rotary blade type vacuum pump
Technical field
The present invention relates to a kind of rotary blade type vacuum pump, when being particularly used in pump operation or need when cleaning course to observe in the industry of specific sanitary regulations.
Background technique
Rotary blade type vacuum pump is present in a very long time.This pump, its rotor is furnished with multiple cutter leaf (lame) (being called " blade "), and it radially slides and guarantees to transmit the air of pumping.
The pump be described in the European patent application EP 0166807 announced is exactly such a example.As found out in Fig. 1 of this file, " traditional " vane type oil pump is that some places on the outer surface arrange fin (ailette), and it can form the retention areas of liquid or solid or prevent natural flow.This makes such pump not be well suited for or is not suitable for specific application even completely.
In fact, liquid or solid can deposit and be stuck in the retention areas on the surface of described pump, thus causes the generation of pathogenic microorganism (mould, bacterium etc.), this results in the danger of pollution.
Summary of the invention
Therefore main purpose of the present invention is propose a kind of rotary blade type vacuum pump, and it does not have shortcoming noted earlier, and it can use especially in the environment being subject to strict hygiene standard.
This object is that the rotary blade type vacuum pump by having special characteristic realizes, this special characteristic be this pump see that from above mode that all visible surfaces are set is make them avoid having the element being easy to keep liquid or solid to be detained.Especially, this pump is being gone up at least partially and can arranged protective gear, and this protective gear is not easy to surface or the hole of fluid retention or solid.
In addition, this pump has the advantage of easy cleaning.Thus it be suitable for the application needing to observe in the industry of specific sanitary regulations completely.
Accompanying drawing explanation
Other features and advantages of the present invention are existing will be described below in detail, and it illustrates with reference to appended accompanying drawing, its schematically as follows:
Fig. 1: according to the rotary blade type vacuum pump of prior art of the present invention;
Fig. 2: according to the pump of Fig. 1, it shows according to the first embodiment of the present invention;
Fig. 3, Fig. 4 and Fig. 5: the main parallax stereogram of pump according to a second embodiment of the present invention, rear perspective view and the main parallax stereogram after turning clockwise;
Fig. 6, Fig. 7 and 8: the view corresponding respectively to the pump of second embodiment of Fig. 3, Fig. 4 and Fig. 5, this pump is equipped with oil mist separator.
Embodiment
As already mentioned, be according to the feature of rotary blade type vacuum pump of the present invention: see that the mode that all visible surfaces are set is the element making them not have easy fluid retention or solid from the upper side.Such surface is necessarily in outside, and it can be formed by cooling fins, and they are positioned at the first half of vacuum pump, and this considers that the surface of the Lower Half being positioned at vacuum pump can not fluid retention or solid due to the effect of gravity.At this, it is very important to explicitly point out following content: (and in this description and in the claims) adjective " first half " of using and " Lower Half " refer to when pump operation or the normal position prepared when running in this article.
In order to realize the upper surface of the element without easy fluid retention or solid, the surface of the first half especially may be designed with smooth manner.This can realize during the parts producing pump, such as, during the outer wall of processing (usinage) pumping chamber.
Or described pump can also arrange the protective gear (moyen) of upper surface at least partially.These protective gears must not have yet the first half that is positioned at vacuum pump and inside, such as, in order to make liquid or solid be detained depression wherein, groove.
first embodiment
In order to help to understand the first embodiment of the present invention, can first reference drawing 1, it presents the rotary blade type vacuum pump according to prior art.
This pump particularly including drive motor, such as air cooling asynchronous system motor.Certainly, according to tectonic sieving, also may use the motor of another kind of type, comprise water-cooled motor.This motor is connected to pumping chamber 2, its objective is the rotor of rotary actuation the latter, thus makes this pump can meet the function of its pumping.Drive motor is connected to pumping chamber 2 by mediate cylindrical V2, and mediate cylindrical comprises the connecting element between drive motor and pumping chamber 2 usually.
Such pumping chamber 2 itself is known; It generally includes rotor, and it to be accommodated in columniform bore which and with blade.
Pumping chamber 2 can provide with oil, is namely provided for the oil circulating system of lubricating in this example, to guarantee sealing and to allow heat exchange.
Oil from the gas separaion be pumped to oil mist separator (not shown), to make to leave by exporting 3 and be recycled to the air before air and be eliminated its oil comprised.
Pumping chamber 2 is similarly connected to heat exchanger V1 with the ventilator (not shown) integrated, and the ventilator of described integration is for cooling the pumping chamber 2 of warming when pump operation.
Drive motor 1 is preferably removably connected with pumping chamber 2, and this allows them, and any one is replaced in case of a failure.
As clearly visible from Figure 1, pumping chamber 2 and drive motor 1 are included in the cooling fins 5 around it.This especially causes not being suitable for according to this pump of prior art the fin that requires to meet certain sanitary condition and be easy to the application cleaned at the scene, because as already explained before, described fin can liquid hold-up or solid.
Therefore, can find out from the first embodiment with reference to Fig. 2 of the present invention, all upper surfaces (all surface thus can seen from it) that it is expected to pump are set to not have the element being easy to fluid retention or solid.Can find out from the analysis of Fig. 2, so level and smooth surface can obtain by with under type: the mode that they are formed is the element making them not comprise easy fluid retention or solid; Or be to provide protective gear, they itself do not have surface or the depression of easy fluid retention or solid.
Shown in Fig. 2 be pump only a part (particularly a part for pumping chamber 2) upper surface comprise level and smooth surface.Therefore these surfaces do not comprise the element of any easy fluid retention or solid, naturally flow or any solid slides naturally to make any liquid that may drop on this pump.In addition, Fig. 2 also show other possibilities realizing distinguishing characteristics of the present invention, i.e. the protective gear 6 of similar block, and namely they have and are roughly semi-cylindrical shape, and in this example, it covers the top of described drive motor 1.Certainly, same what easily realize is pump according to spirit of the present invention, and wherein protective gear 6 can be positioned at the other parts of pump, such as, in pumping chamber 2.
As previously described, " top " refers to following situation: pump in accordance with the present invention is horizontally disposed with, namely when the spin axis of drive motor 1 overlaps substantially with the spin axis of the rotor of pumping chamber 2 and parallel to the ground time, the supporting element 13,14 of pump is shelved on the ground (or supporting element is parallel to the ground) usually.
Adverbial word " substantially " used above refers to the shape of described semicylinder 6 yes the shape according with drive motor 1, such as, have otch to allow the outstanding of electrical equipment sheath 7.
According to Fig. 2, semicylinder 6 only covers the upper panel 5 of drive motor, and lower panel 16 is revealed in the bottom of drive motor 1.
Preferably, semicylinder 6 can be disassembled, and this makes its tool have the following advantages: it can when checking and thoroughly clean easily close to drive motor 1.
It is also preferred that, being designed to can be downward-sloping at least some of drive motor 1 and/or pumping chamber 2 and ideally all upper surfaces (i.e. those tops from pump can observable surface), when making to occur on these surfaces when liquid or solid when cleaning, allow to be flowed away by liquid or solid slip to remove these liquid or solids.
As the example of upper surface, can quote in Fig. 2 for the reference number 8,9,10 and 11 of pumping chamber 2 and for drive motor 1 reference number 12 and 15 shown in.
When supporting element 13 and 14 is shelved on the ground, the angle of inclination of relevant surfaces is preferably spent relative to ground at least 5.
Preferably, the support block that oil mist separator can also be designed to comprise and share for oil filtration device and heat exchanger, making that it is compact, be easy to close to and easy to clean.
second embodiment
The second embodiment of the present invention is presented in Fig. 3 to Fig. 7.
As finding in these figures, described rotary blade type vacuum pump comprises pumping chamber 2, this pumping chamber 2 can as shown in figs. 1 and 2 and it is connected to drive motor 17.This drive motor 17 comprises the double-deck lid with the outside formed by cylindrical body 18 especially, and as shown in Figure 3, it all or be level and smooth close to whole outer surfaces.The inside of this double-deck lid be actually seen in fig. 3 less than the cover (carter) of motor, it comprises the conventional components of rotary blade type vaccum pump motor in a known way, and this motor can be asynchronous drive motors.
Preferably, the outer surface of cylindrical body 18 is level and smooth, and on the contrary, in a first embodiment, described outer surface (with reference to figure 2) is generally provided with cooling fins 16.
Cylindrical body 18 is spaced with cover (no matter whether level and smooth), and to form an interval, cooling liquid such as liquid in that interval, especially water, can be passed in and out by aperture 19 and 20, thus realize circulation.
To remove the heat that drive motor 17 produces by water-cooled advantage, and need not by fin 16 (as Fig. 2), its surface allows to do heat exchange with air.
Preferably, cylindrical body 18 is blocked, that is, its free end is closed, to facilitate the cleaning of pump.
Usually, in the present embodiment, cylindrical body 18 is non-removable, because it is fixed in the cover of drive motor 17.But also can design a special embodiment, cylindrical body 18 also can be disassembled in this scenario.
As in the first embodiment of the present invention, advantageously, some upper surfaces and preferably whole upper surface (such as 8,9,10,11,15,21,22 and 23) have been designed to inclination.
In addition, when using the blade type pumping chamber 2 of lubrication, usually can design as visible oil mist separator in Fig. 6,7 and 8.Advantageously, the support block 25 that described oil mist separator comprises and shares for oil filtration device and heat exchanger, this make its total be compact, be easy to close to and be easy to cleaning.
As described above is multiple embodiments according to mechanism of the present invention, however its do not limit be defined by the claims occupy the first scope of the present invention.
Those skilled in the art will realize the possibility of the development of pump in accordance with the present invention, amendment and application, are particularly day by day increasing important other field for meeting health level.

Claims (13)

1. a rotary blade type vacuum pump, it comprises the drive motor (1 coordinated with vacuum blade pumping chamber (2), 17), it is characterized in that, described pump see that from above all visible surfaces are provided so that they do not have the element being easy to fluid retention or solid.
2. rotary blade type vacuum pump according to claim 1, wherein described pump at least partially on be provided with protective gear (6), this protective gear does not have the surface or hole that are easy to fluid retention or solid.
3. rotary blade type vacuum pump according to claim 2, wherein said protective gear has the shape being roughly semicylinder (6), and this semicylinder (6) covers at least one top of described pump.
4. the rotary blade type vacuum pump according to Claims 2 or 3, wherein said protective gear (6) can be removed.
5. the rotary blade type vacuum pump according to any one of claim 2 to 4, wherein said protective gear (6) is only arranged on the level place of described drive motor (1).
6., according to rotary blade type vacuum pump described one of in the claims, wherein said drive motor (1) is air cooling asynchronous system drive motor.
7. rotary blade type vacuum pump according to claim 1, it is the double casing formed by cylindrical body (18) that wherein said drive motor (17) comprises outside.
8. rotary blade type vacuum pump according to claim 7, wherein said cylindrical body (18) is closed cylindrical body.
9. the rotary blade type vacuum pump according to claim 7 or 8, wherein said drive motor (17) is water-cooled asynchronous system drive motor, and it has the cover forming the space that cooling liquid can circulate with described cylindrical body (18).
10. according to rotary blade type vacuum pump described one of in the claims, wherein when described drive motor (1,17) rotation axis parallel of the rotor of spin axis and this pumping chamber (2) when ground, the upper surface (8 of at least some of described drive motor (1,17) and/or this pumping chamber (2), 9,10,11,15,21,22 and 23) be downward-sloping.
11. according to rotary blade type vacuum pump described one of in the claims, and wherein said blade is oil lubrication.
12. rotary blade type vacuum pumps according to claim 11, wherein said pumping chamber (2) is connected to an oil mist separator (24).
13. according to the rotary blade type vacuum pump of the claims 12, the support block (25) that wherein said oil mist separator (24) comprises and shares for oil filtration device and heat exchanger.
CN201380075760.2A 2013-04-19 2013-04-19 Vane-type rotary vacuum pump Pending CN105121784A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2013/058182 WO2014169962A1 (en) 2013-04-19 2013-04-19 Vane-type rotary vacuum pump

Publications (1)

Publication Number Publication Date
CN105121784A true CN105121784A (en) 2015-12-02

Family

ID=48170468

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201380075760.2A Pending CN105121784A (en) 2013-04-19 2013-04-19 Vane-type rotary vacuum pump

Country Status (15)

Country Link
EP (1) EP2986821B1 (en)
JP (1) JP2016519243A (en)
KR (1) KR102035838B1 (en)
CN (1) CN105121784A (en)
AU (1) AU2013387156B2 (en)
BR (1) BR112015026027B1 (en)
CA (1) CA2907899C (en)
DK (1) DK2986821T3 (en)
ES (1) ES2854989T3 (en)
HK (1) HK1214325A1 (en)
PL (1) PL2986821T3 (en)
PT (1) PT2986821T (en)
RU (1) RU2641409C2 (en)
TW (1) TWI660128B (en)
WO (1) WO2014169962A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112360780A (en) * 2020-11-10 2021-02-12 珠海创烨科技有限公司 Ceramic vacuum pump

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101868914B1 (en) 2017-02-13 2018-06-20 허준영 Moisture removal system for vacuum pump
KR101868915B1 (en) 2017-02-13 2018-06-19 허준영 Trap for vacuum pump
DE102019105695A1 (en) * 2019-03-06 2020-09-10 Gebr. Becker Gmbh Oil-lubricated rotary vane vacuum pump

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0166807A2 (en) * 1984-07-02 1986-01-08 Werner Rietschle Masch.-u. Apparatebau GmbH Rotary vane vacuum pump
JPH07243585A (en) * 1994-03-09 1995-09-19 Mitsubishi Materials Corp Piping cover
CN2528974Y (en) * 2001-12-06 2003-01-01 方国珍 Water-ring vacuum pump
JP4149975B2 (en) * 2004-08-30 2008-09-17 株式会社コロナ Hot water storage water heater
CN201190665Y (en) * 2008-05-22 2009-02-04 南京德功机械设备有限公司 Low vacuum and large bled air rate vacuum pump special for milking
WO2012076204A2 (en) * 2010-12-10 2012-06-14 Ateliers Busch Sa Vacuum pump for applications in vacuum packaging machines

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62228691A (en) * 1986-03-15 1987-10-07 Anretsuto:Kk Roots type vacuum pump
EP0989658A1 (en) * 1998-09-28 2000-03-29 The Swatch Group Management Services AG Liquid-cooled aynchronous electric machine
RU2201532C2 (en) * 2001-03-11 2003-03-27 Азово-Черноморская государственная агроинженерная академия Rotary vane vacuum pump
DE102006058840B4 (en) * 2006-12-13 2021-01-14 Pfeiffer Vacuum Gmbh Vacuum pump
US9080569B2 (en) * 2009-01-22 2015-07-14 Gregory S. Sundheim Portable, rotary vane vacuum pump with automatic vacuum breaking arrangement

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0166807A2 (en) * 1984-07-02 1986-01-08 Werner Rietschle Masch.-u. Apparatebau GmbH Rotary vane vacuum pump
JPH07243585A (en) * 1994-03-09 1995-09-19 Mitsubishi Materials Corp Piping cover
CN2528974Y (en) * 2001-12-06 2003-01-01 方国珍 Water-ring vacuum pump
JP4149975B2 (en) * 2004-08-30 2008-09-17 株式会社コロナ Hot water storage water heater
CN201190665Y (en) * 2008-05-22 2009-02-04 南京德功机械设备有限公司 Low vacuum and large bled air rate vacuum pump special for milking
WO2012076204A2 (en) * 2010-12-10 2012-06-14 Ateliers Busch Sa Vacuum pump for applications in vacuum packaging machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112360780A (en) * 2020-11-10 2021-02-12 珠海创烨科技有限公司 Ceramic vacuum pump

Also Published As

Publication number Publication date
HK1214325A1 (en) 2016-07-22
EP2986821B1 (en) 2020-12-30
BR112015026027A2 (en) 2017-07-25
WO2014169962A1 (en) 2014-10-23
PT2986821T (en) 2021-02-10
TWI660128B (en) 2019-05-21
BR112015026027B1 (en) 2022-09-27
JP2016519243A (en) 2016-06-30
EP2986821A1 (en) 2016-02-24
CA2907899A1 (en) 2014-10-23
RU2015149295A (en) 2017-05-24
DK2986821T3 (en) 2021-02-15
CA2907899C (en) 2020-01-14
PL2986821T3 (en) 2021-07-26
TW201510372A (en) 2015-03-16
KR20160002963A (en) 2016-01-08
AU2013387156B2 (en) 2017-06-29
RU2641409C2 (en) 2018-01-17
AU2013387156A1 (en) 2015-11-12
ES2854989T3 (en) 2021-09-23
KR102035838B1 (en) 2019-10-23

Similar Documents

Publication Publication Date Title
CN105121784A (en) Vane-type rotary vacuum pump
US9227225B2 (en) Bearing cooling system for vibratory devices
JP4723572B2 (en) Modular unit
CN103161922A (en) Power transmission device
RU2643086C2 (en) System for lubricating two adjacent and vertically stacked gear trains
CN107002689A (en) Electrodynamic pump with closed cycle cooling system
CN205669495U (en) A kind of oil-immersed pump
CN103322174B (en) The lubricating fitting of power transmission mechanism
CN105351203B (en) A kind of compressor
EP3890861A1 (en) A bearing housing and a method of removing impurities from a bearing housing
CN206738231U (en) Can self-cleaning water pump
JP5722369B2 (en) transmission
JP2018009580A (en) Rotary vane type vacuum pump
CN205858660U (en) Gear pump oil extraction housing and comprise the gear pump of this gear pump oil extraction housing
DE202013004162U1 (en) Water cooling module
CN211166468U (en) Brake driving device upper cover for protecting winding and rotating body
KR20180076984A (en) Frying machine installed auto oil filtering device
JP2002070775A (en) Oil rotation vacuum pump and oil exchange method
US20040097358A1 (en) Filter
JP2024014834A (en) Transmission devices for automobiles
JP2023017359A (en) Drive device for vehicle
CN112840538A (en) Rotating electric machine and motor unit
CN107096271A (en) A kind of waste lubricating oil pre-filtrating equipment
JP2014166062A (en) Rotary electric machine and lubrication oil cooling mechanism
JP2009270547A (en) Fluid pump

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
REG Reference to a national code

Ref country code: HK

Ref legal event code: DE

Ref document number: 1214325

Country of ref document: HK

RJ01 Rejection of invention patent application after publication

Application publication date: 20151202

RJ01 Rejection of invention patent application after publication
REG Reference to a national code

Ref country code: HK

Ref legal event code: WD

Ref document number: 1214325

Country of ref document: HK