CN110169614A - Suck protective mask and its valve arrangement - Google Patents
Suck protective mask and its valve arrangement Download PDFInfo
- Publication number
- CN110169614A CN110169614A CN201910572073.0A CN201910572073A CN110169614A CN 110169614 A CN110169614 A CN 110169614A CN 201910572073 A CN201910572073 A CN 201910572073A CN 110169614 A CN110169614 A CN 110169614A
- Authority
- CN
- China
- Prior art keywords
- valve
- mask
- mask body
- valve arrangement
- perforation
- 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
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
- A62B18/086—Adaptations for consuming refreshments without unmasking
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J15/00—Feeding-tubes for therapeutic purposes
- A61J15/0003—Nasal or oral feeding-tubes, e.g. tube entering body through nose or mouth
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B9/00—Component parts for respiratory or breathing apparatus
- A62B9/02—Valves
Abstract
The present invention relates to a kind of valve arrangements, comprising: a valve seat offers a bore；One elastic valve plate, corresponding bore setting；One valve deck, connects the valve seat；One perforation, runs through the valve deck and the valve seat；And a valve plug, sealing in the perforation can be filled in.Whereby, tea, coffee or beverage etc. can be conveniently sucked with wearing masks, and remain valid filtering external dust haze and germ, mask is made to maintain good effects.Nose catheter can be passed through perforation merging stomach, put on mask to avoid infecting or sucking droplet particle etc. in air by the sufferer of uncomfortable normal diet.The present invention uses safety and sanitation, and application range is extremely wide, is suitble to use under the air pollution environmentals such as indoor and outdoor bacteriological protection, dust and haze.
Description
Technical field
The present invention relates to a kind of protective mask and its valve arrangement, particularly relate to a kind of tool suck tea, coffee or beverage etc.,
Or the protective mask and its valve arrangement of nose catheter feeding function.
Background technique
In recent years, industry is rapidly developed with urban, each class factory, coal-fired power plant and a large amount of vapour, locomotive emissions it is useless
Gas leads to serious air pollution, and the dust haze (thin suspended particulates PM2.5) in environment, pollen, dust are entered by respiratory tract
Human body can cause various diseases such as allergy, asthma or flu, sneezing, runny nose etc., cause body immunity to glide, seriously
Influence the health of the mankind.
In order to block air pollution and pre- anti-bacteria and transmission, wear masks as most convenient and cost-effective method.
But with can still generate inconvenience when wearing masks, for example, drinking-water be the basic psychological need of the mankind (at least need daily 2000CC or
Eight to ten glasss of water) or people through common suction pipe sucking drinks, for being in hospital, public place or needing for a long time with wearing masks
For people, many precautionary measures and step need to be taken by sucking the processes such as tea, coffee, beverage, such as unloaded mask and placed, wear again
Or directly replace, slightly accidentally i.e. may thus be infected by contact.Often wearing and take off mask also can allow the probability of infection to increase.
Furthermore just there are 200,000 patients for using nose catheter feeding in Taiwan every year, they walk in medical institutes mostly
It is dynamic, the mask for not wearing masks or not being suitble to, and their usual immunity are lower, with greater need for have can wear and feeding feelings
The mask that can be protected under condition.
In addition, N95 mask etc. can install additional mostly in order to reduce exhalation impedance and reduce sultry phenomenon inside mask
Expiration valve gear.Outlet valve is a unidirectional air outlet valve, and gas breathes out inside mask when allowing to exhale, and passes through outlet valve
It drains into outside mask.Though such mask provides higher protection and wearing comfort, tea, coffee or beverage are sucked for having
Demander for, not provide can suck function and good protection effect.
Summary of the invention
One of the objects of the present invention is to provide one kind to suck protective mask and its valve arrangement, convenient for users to sucking tea
Water, coffee or beverage etc., and suck while mask remains valid filtering external dust haze and germ, to maintain good filtering efficiency.
Another object of the present invention is to provide one kind to suck protective mask and its valve arrangement, the sufferer of uncomfortable normal diet
Nose catheter can be passed through perforation or the mask body of valve arrangement by (be unable to normal diet or do not adapt to the sufferer of normal diet)
Aperture is placed in stomach again, puts on mask to avoid infecting or sucking the droplet particle etc. in air, therefore it uses safety and sanitation, answers
It is extremely wide with range.
In order to solve the above technical problems, the present invention provides a kind of valve arrangement, it is characterised in that: it includes a valve seat, is opened
Equipped with a bore；One elastic valve plate, corresponding bore setting；One valve deck, connects the valve seat；One perforation, running through should
Valve deck and the valve seat；And a valve plug, sealing in the perforation can be filled in.
Further, the valve arrangement further includes having an elasticity that can open to close diaphragm, and the corresponding bore simultaneously connects the valve seat and sets
It sets.
Further, the valve arrangement further includes having a narrow bars, connects the valve plug and the valve deck.
In order to solve the above technical problems, the present invention, which provides one kind, sucks protective mask, it is characterised in that: it includes a mouth
Cover；A kind of one valve arrangement as the aforementioned, the valve arrangement are installed in the mask body；And one group of lanyard group, connect the mask
Body.
Further, the described mask body is the structure of c-type or freshwater mussel type or Duckbill type or folded form.
Further, the described mask body is planaperturate cover or N95 series mask body.
Further, the described mask is body formed there are two longitudinal gauffer, the valve arrangement be located at this two longitudinal direction gauffers it
Between.
In order to solve the above technical problems, the present invention, which provides one kind, sucks protective mask, it is characterised in that: it includes a mouth
Cover is equipped with an aperture；One elasticity, which can open, closes diaphragm, and the corresponding aperture simultaneously connects mask body setting；One outlet valve,
It is installed in the mask body；And one group of lanyard group, connect the mask body.
Further, the described mask body is the structure of plane or c-type or freshwater mussel type or Duckbill type or folded form.
In order to solve the above technical problems, the present invention, which provides one kind, sucks protective mask, it is characterised in that: it includes a mouth
Cover is equipped with an aperture；One stopple can fill in sealing in the aperture；One outlet valve is installed in the mask body；With
And one group of lanyard group, connect the mask body.
Further, the described mask body is the structure of plane or c-type or freshwater mussel type or Duckbill type or folded form.
In view of above-mentioned technical characteristic, the invention has the characteristics that and effect:
(1) it is suitble to use under the air pollution environmentals such as indoor and outdoor bacteriological protection, dust and haze, high haze or air pollution are tight
Important place area can still be worn.
(2) mask manufacturing process is simplified, can comprehensive automation and mass production, at low cost, numerous users can be benefited.
(3) safely and effectively, serve many purposes；It is novel in design, beautiful and practical；It is structurally simple, economical and environmentally friendly.
Detailed description of the invention
Fig. 1 is a kind of perspective exploded view of valve arrangement in embodiment 1.
Fig. 2 is a kind of combination diagram of valve arrangement (i.e. the constitutional diagram of Fig. 1) in embodiment 1.
Fig. 3 is a kind of right view for sucking protective mask in embodiment 2.
Fig. 4 is a kind of main view (i.e. the stereo unfolding front view of Fig. 3) for sucking protective mask in embodiment 2.
Fig. 5 is a kind of usage state diagram (i.e. the usage state diagram of Fig. 4) for sucking protective mask in embodiment 2.
Fig. 6 is a kind of main view for sucking protective mask in embodiment 3.
Fig. 7 is a kind of perspective view (i.e. the stereo unfolding schematic diagram of Fig. 6) for sucking protective mask in embodiment 3.
Fig. 8 is a kind of perspective view for sucking protective mask in embodiment 4.
Fig. 9 is a kind of main view for sucking protective mask in embodiment 5.
Figure 10 is a kind of perspective view (i.e. the stereo unfolding schematic diagram of Fig. 9) for sucking protective mask in embodiment 5.
Figure 11 is a kind of perspective view of valve arrangement in embodiment 6.
Figure 12 is a kind of perspective view of valve arrangement in embodiment 7.
Figure 13 is a kind of perspective view for sucking protective mask in embodiment 8.
Figure 14 is a kind of usage state diagram (i.e. the usage state diagram of Figure 13) for sucking protective mask in embodiment 8.
Figure 15 is a kind of perspective view for sucking protective mask in embodiment 9.
In figure: 1- valve arrangement；10- valve seat；11- bore；13- rib；15- elasticity, which can open, closes diaphragm；20- elastic valve plate；
30- valve deck；31- cap bore；40- perforation；50- valve plug；51- narrow bars；201- lanyard group；203- lanyard；3- suction pipe；401- longitudinally wrinkles
Pleat；701- aperture；703- stopple；8- outlet valve；Mask body in 2- embodiment 2；Mask body in 4- embodiment 3；5- embodiment 4
Middle mask body；Mask body in 6- embodiment 5；Mask body in 7- embodiment 8 and embodiment 9.
Specific embodiment
The invention will be further elucidated with reference to specific embodiments.It should be understood that these embodiments are merely to illustrate this hair
It is bright rather than limit the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, art technology
Personnel can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Fixed range.Detailed description for the present invention and technology contents, cooperation Detailed description of the invention is as follows, however appended attached drawing is only used as and mentions
For reference with illustrate to use, it is non-to limit the present invention.
Fig. 1 to Fig. 2 is please referred to, embodiment 1, it to include valve seat (10), elasticity that the present invention provides a kind of valve arrangement (1)
Valve block (20), valve deck (30), perforation (40) and valve plug (50), are described below:
Valve seat (10) can offer round bore (11) in square type and in centre, and the inner wall of bore (11) is connected with number
Rib (13), these ribs (13) constitute crosswise, and valve seat (10) can be made of the plastic cement material of PE, PVC or PP.And institute
The valve seat (10) stated is not limited to square type, can also be in round, triangular form or ellipse.
Elastic valve plate (20), corresponding bore (11) setting.Valve seat (10) are fixed in the upside system of elastic valve plate (20)
On, and its lower end then can be closed or open with respect to bore (11).The elastic valve plate (20) can be by rubber or silica gel material system
At, and can reach closely sealed effect after being closed with bore (11).
Elastic valve plate (20) is simultaneously folded on valve seat (10), the lower end of valve deck (30) by valve deck (30), connecting valve seat (10)
Portion offers the elongated cap bore (31) of several arrangements.The valve deck (30) can be made of PE, PVC or PP plastic cement material.
It perforates (40), it can be rounded and through valve deck (30) and valve seat (10).I.e. on valve deck (30) and valve seat (10) respectively
It is formed with corresponding perforation (40).In addition, elastic valve plate (20) can also form perforation (40) corresponding thereto, or also may not be used
With perforation (40).
Valve plug (50) can fill in sealing in perforation (40).Valve plug (50) can be filled in perforation (40) or out of perforation (40)
Extraction or removal.After user unloads valve plug (50), can valve plug (50) be carried or be taken care of.The material of the valve plug (50) can
For rubber, silica gel or plastic cement, filling in perforation (40) can be sealed, and pass through perforation (40) inlet port to avoid dirty air or germ
Cover is internal.
Please refer to Fig. 3 and Fig. 4, embodiment 2, for a preferred embodiment in the present invention, one kind of the offer of the present embodiment 2
Protective mask is sucked, includes mask body (2), the valve arrangement (1) and lanyard group (201), is described as follows:
Mask body (2) can be freshwater mussel type or c-type structure.It includes have outer layer, two middle layers and internal layer (not shown).Outer layer can
For water repellent nonwoven fabric (or non-woven fabrics), prevent moisture from penetrating into.Two middle layers may respectively be fid and filter layer, the effect of fid
For mask body (2) when mask is opened, can be made to keep good three-dimensional shape (strong, do not collapse)；Filter layer can be single layer, double
Layer, three layers, four layers, the electrostatic high density bacteriological filtration nonwoven fabrics (or electrostatic high density bacteriological filtration non-woven fabrics) of five layers or five layers or more, with
Obstruct PM2.5, micronic dust and germ.Internal layer can be hydrophilic superfine composite fiber nonwoven fabric (hydrophilic superfine composite fiber non-woven fabrics),
Its soft comfortable, effectively absorption aqueous vapor.
Valve arrangement (1) is installed in the side (can be left side or right side) of mask body (2).The material of valve arrangement (1)
And construction is as described in example 1 above, details are not described herein.
Lanyard group (201), connector cover (2).Lanyard group (201) includes two lanyards (203), is connected to mask
The left and right sides of body (2).Wherein, lanyard (203) can be ear-hang band, head lanyard or bandage, can be elastic or non-resilient.
It, can be as shown in figure 5, the perforation of suction pipe (3) insertion valve arrangement (1) can be used when the user wearing present invention sucks
(40) it and protrudes into mouth, can conveniently suck tea, coffee or beverage etc., and suck while mask remains valid filtering external dirt
Haze and germ, to maintain good filtering efficiency.After sucking, valve plug (50) can be got back into sealing in perforation (40), to keep away
Exempt from dirty air or germ to enter inside mask via perforation (40).In addition, the sufferer of uncomfortable normal diet, can pass through nose catheter
Perforation (40) is placed in stomach, puts on mask to avoid infecting or sucking the droplet particle etc. in air.Therefore this creation use is safe
Health, application range are extremely wide.
Please refer to Fig. 6 and Fig. 7, embodiment 3, for a preferred embodiment in the present invention, the present embodiment 3 with it is aforementioned each
Embodiment the difference is that, wherein mask body (4) forms two longitudinal gauffers (401), and valve arrangement (1) is located at two longitudinal wrinkles
Between pleat (401).Whereby, deployment opening cover (4) can form stereochemical structure, increase mask inner space, make to breathe smooth, increase
Wear comfort.User wears before the present invention sucks, and first removes or removal valve plug (50), then suction pipe is inserted into perforation (40) and is stretched
Enter to be placed in mouth, tea, coffee or beverage etc. can be sucked.
Referring to Fig. 8, embodiment 4, for a preferred embodiment, the present embodiment 4 and foregoing individual embodiments in the present invention
The difference is that wherein mask body (5) can be planaperturate cover.Whereby, user can conveniently suck tea, coffee or beverage
Deng, and suck while mask remains valid filtering external dust haze and germ, to maintain good filtering efficiency.
Please refer to Fig. 9 to Figure 10, embodiment 5, for a preferred embodiment in the present invention, the present embodiment 5 with it is aforementioned each
Embodiment the difference is that, wherein mask body (6) be N95 mask body.Whereby, user can conveniently suck tea, coffee or
Beverage etc., and suck while mask remains valid filtering external dust haze and germ, to maintain good filtering efficiency.
Please refer to Figure 11, embodiment 6, for a preferred embodiment, the present embodiment 6 and foregoing individual embodiments in the present invention
The difference is that the valve arrangement that the present embodiment 6 provides further includes flexible open and closes diaphragm (15), corresponding perforation (40) simultaneously connects
Connect valve seat (10) setting.Whereby, for the present invention before being not used, elasticity, which can open, closes diaphragm (15) system in closed state, when suction pipe is worn
Elasticity can be strutted after perforated (40) can open and close diaphragm (15), to reduce suction pipe and the hole between (40) of perforating generates, inhaling
It can avoid sucking dirty air and germ during food.The elasticity can open close the material of diaphragm (15) can be for silica gel or rubber etc..
Figure 12 is please referred to, embodiment 7, for a preferred embodiment in the present invention, the present embodiment 7 is different from previous embodiment
Place is that the valve arrangement that the present embodiment 7 provides more may include having narrow bars (51), connects valve plug (50) and valve deck (30).Whereby,
When unloading valve plug (30) from perforation (40), in addition valve plug (50) need not be collected, and can avoid valve plug (50) and fall or lose
It loses.
Figure 13 is please referred to, embodiment 8, for a preferred embodiment in the present invention, one kind that the present embodiment 8 provides is sucked anti-
Retaining cover, comprising: mask body (7), stopple (703), outlet valve (8) and lanyard group (201) are described as follows:
Mask body (7) can be c-type structure or freshwater mussel type structure, even general plane Respirator structure.Mask body (7) can be in
Aperture (701) are arranged in left side (or right side), and the aperture (701) can rounded, triangle, rectangle or ellipse.
Stopple (703) can fill in sealing in aperture (701).Before the present invention is not used, stopple (703) fills in Yu Kaikong (701)
In be in sealing state；When being intended to using or sucking, first removal stopple (703) is needed.The material of the stopple (703) can be rubber, silicon
Glue or plastic cement etc., and it rounded, triangle, rectangle or ellipse or can cooperate the shape of aperture (701) to form.
Outlet valve (8) is installed in mask body (7), can be set to left side and/or the right side of mask body (7), and it is
One unidirectional air outlet valve, gas breathes out inside mask when allowing to exhale, and is drained into outside mask by outlet valve (8).
Lanyard group (201), connector cover (7).Lanyard group (201) includes two lanyards (203), is connected to mouth
The left and right sides of cover (7).Wherein, lanyard (203) can be ear-hang band, head lanyard or bandage, and it can be elastic or non-resilient.
When Figure 13 that user wears in the present invention sucks, as shown in figure 14, suction pipe (3) insert port cover (7) can be used
Aperture (701) and protruding into be placed in mouth, can conveniently suck tea, coffee or beverage etc. by suction pipe (3), and suck simultaneously
Mask remains valid filtering external dust haze and germ, to maintain good filtering efficiency.After sucking, suction pipe (3) is removed again
Stopple (703) is got back into sealing in aperture (701).In addition, the sufferer of uncomfortable normal diet, can pass through aperture for nose catheter
(701) it is placed in stomach, puts on mask to avoid infecting or sucking the droplet particle etc. in air.
Wherein, it is exhaled by outlet valve (8), exhalation impedance can be reduced and reduces sultry phenomenon inside mask.Therefore, this hair
Bright the needs of meeting that suck and protect etc., and wear that comfortable, breathing is smooth, using safety and sanitation, application range is extremely wide.
Please refer to Figure 15, embodiment 9, for a preferred embodiment, the present embodiment 9 and foregoing individual embodiments in the present invention
The difference is that one kind that the present embodiment 9 provides sucks protective mask and further includes flexible open and closes diaphragm (15), correspondence is opened
Hole (701) and connector cover (7) setting.The elasticity can open close the material of diaphragm (15) can be for silica gel or rubber etc..Whereby,
For the present invention before being not used, elasticity, which can open, closes diaphragm (15) in closed state, can strut or beat when in suction pipe insertion aperture (701)
It opens elasticity and can open and close diaphragm (15), to reduce the generation of the hole between suction pipe and aperture (701), can avoid inhaling in sucking process
Enter dirty air or germ.Therefore, the present invention sucks while having the function of protection effect etc..
The present invention is suitable for any kind of mask, such as such as plane face mask, active carbon mask, solid or dust-proof mouth
Cover, such as N95 mask, bowl-type mask, freshwater mussel type mask, c-type mask, Duckbill type mask and anti-haze series mask etc..
In conclusion the present invention have effects that compared to prior art (i.e. the prior art) it is following: convenient for users to sucking
Tea, coffee or beverage etc., and suck while mask remains valid filtering external dust haze and germ, to maintain good filtering effect
Energy.Furthermore nose catheter, can be passed through the perforation of valve arrangement by the sufferer of uncomfortable normal diet or the aperture of mask body is placed in stomach again
Mask is put on to avoid infecting or sucking the droplet particle etc. in air by portion, therefore it uses safety and sanitation, and application range is extremely wide
It is general.
In addition, the present invention also have effects that it is other: be suitble under the air pollution environmentals such as indoor and outdoor bacteriological protection, dust and haze
It uses, high haze or the serious area of air pollution can still be worn.And mask manufacturing process is simplified, and it can comprehensive automation and a large amount of
It produces, is at low cost, numerous users can be benefited.Its safely and effectively, serve many purposes, it is novel in design, both artistic and practical, and structure
Simply, economic and environment-friendly.
It is in summary only presently preferred embodiments of the present invention, practical range not for the purpose of limiting the invention.It is i.e. all
Equivalent changes and modifications made by content according to scope of the present invention patent all should be technology scope of the invention.
Claims (10)
1. a kind of valve arrangement, it is characterised in that: it includes a valve seat, offers a bore；One elastic valve plate, it is corresponding to be somebody's turn to do
Bore setting；One valve deck, connects the valve seat；One perforation, runs through the valve deck and the valve seat；And a valve plug, it can fill in
Sealing in the perforation.
2. a kind of valve arrangement according to claim 1, it is characterised in that: the valve arrangement further includes having an elasticity that can open
Diaphragm is closed, the corresponding bore simultaneously connects valve seat setting.
3. a kind of valve arrangement according to claim 2, it is characterised in that: the valve arrangement further includes having a narrow bars, even
Connect the valve plug and the valve deck.
4. one kind sucks protective mask, it is characterised in that: it includes a mask body；One as described in claim 1 a kind of
Valve arrangement, the valve arrangement are installed in the mask body；And one group of lanyard group, connect the mask body.
5. one kind according to claim 4 sucks protective mask, it is characterised in that: the described mask body is c-type or freshwater mussel type
Or the structure of Duckbill type or folded form.
6. one kind according to claim 4 sucks protective mask, it is characterised in that: the described mask body is planaperturate cover
Or N95 series mask body.
7. one kind according to claim 4 sucks protective mask, it is characterised in that: the described mask is body formed, and there are two vertical
To gauffer, the valve arrangement is located between this two longitudinal gauffers.
8. one kind sucks protective mask, it is characterised in that: it includes a mask body, is equipped with an aperture；One elasticity can open
Diaphragm is closed, the corresponding aperture simultaneously connects mask body setting；One outlet valve is installed in the mask body；And one group of lanyard
Group connects the mask body.
9. one kind sucks protective mask, it is characterised in that: it includes a mask body, is equipped with an aperture；One stopple, can fill in
Enter sealing in the aperture；One outlet valve is installed in the mask body；And one group of lanyard group, connect the mask body.
10. one kind according to claim 8 or claim 9 sucks protective mask, it is characterised in that: the described mask body be plane or
The structure of c-type or freshwater mussel type or Duckbill type or folded form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910572073.0A CN110169614A (en) | 2019-06-28 | 2019-06-28 | Suck protective mask and its valve arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910572073.0A CN110169614A (en) | 2019-06-28 | 2019-06-28 | Suck protective mask and its valve arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110169614A true CN110169614A (en) | 2019-08-27 |
Family
ID=67699289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910572073.0A Pending CN110169614A (en) | 2019-06-28 | 2019-06-28 | Suck protective mask and its valve arrangement |
Country Status (1)
| Country | Link |
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| CN (1) | CN110169614A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112315061A (en) * | 2020-03-16 | 2021-02-05 | 叶农 | Epidemic prevention mask with smoking and diet functions |
| WO2021220106A1 (en) * | 2020-04-27 | 2021-11-04 | Bottin Matteo | Improved respiratory protective device |
| IT202000016180A1 (en) * | 2020-07-03 | 2022-01-03 | Messina Giovanni | PROTECTIVE MASK FOR USE WITH MUSICAL INSTRUMENTS |
| IT202100004958A1 (en) * | 2021-03-03 | 2022-09-03 | Xenerj S R L | MASK FOR CHILDREN |
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| IT202100004958A1 (en) * | 2021-03-03 | 2022-09-03 | Xenerj S R L | MASK FOR CHILDREN |
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Application publication date: 20190827 |