CN220477000U - Personal protection filter device - Google Patents
Personal protection filter device Download PDFInfo
- Publication number
- CN220477000U CN220477000U CN202190000725.4U CN202190000725U CN220477000U CN 220477000 U CN220477000 U CN 220477000U CN 202190000725 U CN202190000725 U CN 202190000725U CN 220477000 U CN220477000 U CN 220477000U
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- Prior art keywords
- filter device
- air
- personal protection
- face
- nose
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- 210000001061 forehead Anatomy 0.000 claims abstract description 11
- 210000004373 mandible Anatomy 0.000 claims abstract description 8
- 230000001681 protective effect Effects 0.000 claims description 15
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000002861 polymer material Substances 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 210000005069 ears Anatomy 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 230000000284 resting effect Effects 0.000 claims 1
- 210000000216 zygoma Anatomy 0.000 abstract description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 208000015181 infectious disease Diseases 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 210000000056 organ Anatomy 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 238000010146 3D printing Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
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- 230000003266 anti-allergic effect Effects 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 210000000795 conjunctiva Anatomy 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
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- 239000012678 infectious agent Substances 0.000 description 2
- 230000002458 infectious effect Effects 0.000 description 2
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- 238000000746 purification Methods 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- 210000002345 respiratory system Anatomy 0.000 description 2
- 208000023504 respiratory system disease Diseases 0.000 description 2
- 208000025721 COVID-19 Diseases 0.000 description 1
- 208000035473 Communicable disease Diseases 0.000 description 1
- 241000711573 Coronaviridae Species 0.000 description 1
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- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 244000147568 Laurus nobilis Species 0.000 description 1
- 235000017858 Laurus nobilis Nutrition 0.000 description 1
- 241000366182 Melaleuca alternifolia Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 241000241413 Propolis Species 0.000 description 1
- 244000223014 Syzygium aromaticum Species 0.000 description 1
- 235000016639 Syzygium aromaticum Nutrition 0.000 description 1
- 235000005212 Terminalia tomentosa Nutrition 0.000 description 1
- 230000000172 allergic effect Effects 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- 230000000843 anti-fungal effect Effects 0.000 description 1
- 230000002924 anti-infective effect Effects 0.000 description 1
- 230000003110 anti-inflammatory effect Effects 0.000 description 1
- 230000000840 anti-viral effect Effects 0.000 description 1
- 229940121375 antifungal agent Drugs 0.000 description 1
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- 230000004872 arterial blood pressure Effects 0.000 description 1
- 208000010668 atopic eczema Diseases 0.000 description 1
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- 230000000249 desinfective effect Effects 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
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- 238000005470 impregnation Methods 0.000 description 1
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- 230000000873 masking effect Effects 0.000 description 1
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- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229940069949 propolis Drugs 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000037307 sensitive skin Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000003491 skin Anatomy 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
Classifications
-
- 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
- A41D13/1184—Protective face masks, e.g. for surgical use, or for use in foul atmospheres with protection for the eyes, e.g. using shield or visor
Abstract
The utility model provides a personal protection filter device, the front support structure of which comprises a horizontal upper bar (5) which rests on the forehead, the side rear structure connected to said horizontal bar comprising two ear pieces (8) which extend from the temple to the rear of the user's auricle, the side structure extending laterally along the face, at both sides of the face and in front of the ear comprising two vertical bars, each of which extends downwards and widens to form a side wall (10) which follows the cheek contour from the cheekbone to the mandible, the front structure having the shape of a rectangular polyhedron (11) provided with an upper wall (14) which adjoins the upper side of the nose near its tip of the nose and which is further from the mouth and nostril, the cover being provided with folding means (7) for folding the cover upwards on the forehead.
Description
Technical Field
The present utility model relates to devices currently used for filtering inhaled and exhaled air to prevent any contamination from infectious or non-infectious agents.
More particularly, the present utility model relates to a personal protective filter device configured to achieve a breathing chamber separated from the outside and enclosing the mouth, nose and a portion of the user's face; the device includes a front support structure, a side rear structure, a side structure, a front structure and an upwardly foldable protective covering.
Background
All the generic devices currently used for this purpose have major limitations and drawbacks.
First, they almost completely cover the face of the user, thus having a significant impact on social and personal relationships, as occurs during recent pandemics, in which case it is also not possible to present the face of a parent or friend to dying people.
Similarly, in terms of language communication, even for people with hearing impairment, masking prevents reading lips and conceals emotional states.
Furthermore, most masks in use adhere tightly to the epidermis of the face, thus often causing allergic phenomena to the most sensitive skin.
This close attachment to the mouth and nose can cause accumulation of bacteria, fungi, viruses near the inhalation area.
In such long use, the warm exhaled air causes the temperature in the mask fabric around the face to rise, form moisture condensation, accumulate microorganisms, and all of these negative things are re-inhaled in part and expelled in part, not only from the small valve provided for this purpose, but also escape around the filter device, causing the glasses to fog and disseminate potentially infectious particles.
In addition, because the user's exhaled air is not entirely exhausted, excess carbon dioxide is generated, and the mask user progressively inhales an increasing amount of carbon dioxide, the user inhales air from the outside that is increasingly spoiled and less filtered.
Another problem encountered in the state of the art is that associated with the disposal of hundreds of millions of disposable masks, which has led many authorities to high fines for those who leave the mask at each street corner or in various places, thus implying high disposal costs to society, despite the low economic value of the mask.
Finally, the use of the device has made authorities obliged to take social security measures that seriously impair the economic benefits of the carrier and the social, physical, cultural, work and leisure activities of millions of people.
The object of the present utility model is to achieve a filtering device for protecting the respiratory tract which solves the above-mentioned drawbacks of the prior art and has innovative characteristics whatever the filtering method used; in other words, it is a simple, fully functional and safe device.
Disclosure of Invention
The present utility model relates to a device for protecting the eyes and preventing respiratory lesions, mainly infections and allergies, which completely changes the model known in the prior art.
The device according to the utility model is made of antiallergic, reusable, cleanable and sterilizable material and is produced according to 3D printing technology, with a "basic" version featuring a low cost and usable by everyone, and a more complex variant for more specific and professional environments.
The device according to the utility model comprises two separate but complementary parts; the main part is intended to protect the respiratory organs, while the other part is a cover covering the eyes.
According to an embodiment of the utility model, a personal protective filter device configured to realize a breathing chamber separated from the outside and enclosing a mouth, nose and a portion of a user's face, the personal protective filter device comprising a front support structure, a side rear structure, a side structure, and a front structure and an upwardly foldable protective cover, characterized in that:
the front support structure comprises a horizontal upper bar which rests with a suitable spacing on the forehead of the user,
the side rear structure connected to the horizontal upper bar comprises two ear pieces extending from the temple to the rear of the pinna of the user,
the side structures extending laterally along the face, at both sides of the face and in front of the ears comprise two vertical bars, each of which, joined with the ear pieces at the temples, extends downwards and widens to form side walls which follow the contour of the cheeks from the cheeks to the mandible,
the front structure has the shape of a polyhedron provided on the upper side with an upper wall that adjoins the front of the nose, near the tip of the nose,
the protective covering is provided with folding means for folding the protective covering upwards on the forehead, and
wherein each of the two side walls of the side structure forms a hollow structure with the front structure, the hollow structure being adapted to accommodate a respective air filter.
According to an embodiment of the utility model, both the side structures and the front structure are provided with a soft polymer material, which adheres to the face of the user.
According to an embodiment of the utility model, the two ear pieces of the side rear structure, which extend behind the pinna of the user, are connected to each other behind the nape of the neck by an adjustable locking means.
According to an embodiment of the utility model, one of the air filters is a under chin air filter.
According to an embodiment of the utility model, the air filter has a parallelogram or cylinder shape, respectively.
According to an embodiment of the utility model, the air filter is provided with a small radial fan in the form of a cylinder for facilitating the air intake.
According to an embodiment of the utility model, the front structure is made of polycarbonate or a transparent polymer material.
According to an embodiment of the utility model, one end of the ear piece of the side rear structure is provided with a seat for accommodating a lithium battery at the level behind the auricle.
According to an embodiment of the utility model, the air filter is associated with a bladder, a sheet or a replaceable filter for flavouring the filtered air.
Drawings
The features and advantages of such a device can be deduced from the following description, which is for illustrative, non-limiting purposes and makes reference to the attached schematic drawings.
FIG. 1 is a front view illustrating the main features of the front, side of the device according to the utility model;
FIG. 2 is a front view illustrating the principal features of the front, side of a device according to a further embodiment of the utility model;
fig. 3 is a rear view illustrating main features of the rear of the device according to the present utility model;
FIG. 4 is a front view of an apparatus according to a further embodiment of the utility model;
fig. 5 schematically shows a front part and a side front part of the device according to the utility model;
FIG. 6 is a rear view illustrating the rear of a device according to a further embodiment of the present utility model;
fig. 7 schematically shows a front part and a side front part of a device according to a further embodiment of the utility model;
fig. 8 schematically illustrates the path followed by exhaled air expelled by positive pressure generated within the mask by the thrust action of a small fan in accordance with the present utility model;
FIG. 9 is a schematic view of a portion of a side, and front, of a device according to the present utility model; and
fig. 10 and 11 schematically illustrate the path followed by exhaled air expelled by positive pressure generated within the mask by the thrust action of a small fan, according to further embodiments of the present utility model.
Detailed Description
Fig. 1 to 7 and 9 are schematic views illustrating the main features of the front, side and rear of the present utility model, and illustrating the main features of possible different models regarding filter types, whether square or cylindrical, without using small fans. More specifically, fig. 1 and 2 show front views, fig. 3 shows rear views, and a small fan is provided in an embodiment thereof.
The following description refers to fig. 1.
The personal protection filter device according to the present utility model is configured to realize a breathing chamber separated from the outside, enclosing the mouth, nose and a portion of his/her face.
The device includes a front support structure, a side-to-rear structure, a side structure, a front structure, and an upwardly collapsible protective covering.
More specifically, the components are configured as follows:
the front support structure comprises a horizontal upper bar 5, which rests with a suitable spacing on the forehead of the user,
the side-rear structure connected to said horizontal bar 5 comprises two ear stems 8, which extend from the temple to the rear of the user's auricle (auricle),
the lateral structures extending laterally along the face, on both sides of the face and in front of the ears comprise two vertical bars 9, each of which extends downwards with the ear pieces 8 located at the temples and widens so as to form a lateral wall 10 following the contour of the cheek from the cheekbones to the mandible,
the front structure 11 has the shape of a polyhedron provided on the upper side with an upper wall 14 that abuts the upper part of the nose and approaches the tip of the nose,
the covering element 6 is provided with folding means 7 for lifting on the forehead, as required.
Each of the two side walls 10 of the side structure forms with the front structure 11 a hollow structure adapted to house a first air filter 13, a second air filter 16 and a third air filter 15, respectively.
The device 2 is of a type that can be worn by a user and, when worn, the device 2 is configured to effect a breathing chamber 11 that is separated from the outside and accommodates the mouth and nose of the user.
This chamber is completely transparent, but the rest of the device also gives those in front of the user a clear view of the face, mouth and nose.
As shown, the mask comprises a front support structure 5, a side-rear structure 8, and a side structure 9 made of a more compact plastic material, constituted by a horizontal upper bar 5 which, thanks to the presence of a soft pad (not shown), rests on the forehead at a suitable spacing from the forehead of the user, so as to leave room for personal spectacles into which a protective covering 6 can be inserted, which can be folded upwards by means of a foldable device 7.
The device is worn in the same way as spectacles, but the device allows the eyes to move freely and, if desired, the eyes can be protected by folding the cover downwards.
A horizontal bar 5 extending along the forehead joins together two side rear ear pieces 8 which extend from the temple just behind the pinna like the ear pieces of a pair of spectacles and which are connected to each other by an adjustable buckle 18 behind the nape (fig. 1, 2, 3, 4).
Schematic figures 5 and 7 show the front part and the lateral front part of the device and illustrate (figure 7) how the vertical bar 9, which is connected to the bar 8 located on the temple, extends down the face at one side of the face and in front of the ear by following the contour of the upper part of the mandible 10 and when reaching the angle of the mandible it deviates almost 90 degrees towards the mouth and nose following the contour of the lower region of the mandible.
Returning to fig. 1, the bars 9 are of a size of a few centimetres, but they widen and reach a size of about 5 centimetres just after passing the angle of the mandible, and the thickness of the bars increases to about 3cm, so that two hollow structures 10 in the form of polyhedrons with two extruded sides are constituted, which house a first air filter 13 of the device, which may have a parallelogram shape or even a cylindrical shape, see fig. 2.
The two structures 10 placed at the sides of the face end at the corners of the mouth where they join the front side wall 11 of the mask, which has the shape of a rectangular polyhedron.
The distance formed between the two side walls and the skin around the nose and at both sides of the face is thus covered by an antiallergic soft polymer material (TPE) 12 which closes all the space around, forming separate compartments and helping to build up an air chamber around the respiratory organs, mouth and nose.
This front region, which is formed by a polyhedron having a rectangular shape, is completely transparent (made of polycarbonate or transparent polymeric material) so that the nose and mouth are clearly visible.
Further, referring to fig. 1, 5, 9, the upper wall 14 of the rectangular polyhedron abuts the front portion of the nose near its tip, while it is at a substantial distance from the mouth and nostrils, and participates in forming the already mentioned air chamber around the face while leaving more room for air to flow and helping to prevent the transparent front portion from fogging from exhaled warm air.
For this purpose, a third under-chin air filter 15 is present at the base of the rectangular polyhedron and constitutes the lower face thereof.
Due to the breathing action of the user, both inspiration and expiration, an air passage is ensured with the aid of two first air filters 13 and a third air filter 15 located at both sides of the face, which first air filters 13 have a parallelogram shape as shown in fig. 1, 9 and 10, or which first air filters 13 have a cylindrical shape as shown in fig. 2, 7, which third air filters 15 form the lower face of a transparent rectangular polyhedron, see fig. 1 and 7.
These filters are used to filter both the air inhaled and exhaled by the user and provide effective filtration and purification due to the known structural features of the material from which they are made (the polypropylene fabric of certified protection grade FFP 3).
The device is also supplemented with an eye protection function for covering the eyes by a protective cover 6 provided with folding means 7, see fig. 1, which can be used for folding it upwards and making it possible to use personal spectacles.
The cover is closed, also creating an isolated compartment for the eye, and fresh air pushed by the small fan also reaches this area through the supporting hollow structure to prevent the conjunctiva from drying out, while protecting the eye from possible invasion.
A second embodiment of the device according to the utility model comprises the presence of a small radial fan (5-12V-120 mAh) 17 in a cylindrical second air filter 16 on the right or left side of the face, as shown in fig. 4 to 7, the purpose of which is to promote the air ingress inside the mask by drawing air through the filter and pushing it towards the mouth and nose by gentle flow.
At the same time, the exhaled air is transported downwards by exiting the third under chin air filter 15 and upwards by the driving of the positive pressure generated in the mask under the thrust of the small fan 17 to the first air filter 13 on the opposite side of the face, as shown in figures 8, 10, 11.
All of these features provide proper oxygen intake, a continuously pleasant flow of fresh clean air, and a slight impregnation of healthy fragrances to make the mask more comfortable for those enjoyed, while preventing carbon dioxide concentrations or accumulation of bacteria, fungi, viruses, primarily for those applications requiring prolonged wearing of the mask in a closed environment.
At the behind-the-ear level, a seating portion is provided to house a long-life lithium battery at one end of the side rear ear piece 8.
A further third embodiment of the device comprises a different configuration of a cylindrical second air filter 16, the cylindrical second air filter 16 containing a small radial fan 17; the filter is located behind the nape, corresponds to the mastoid region, and is connected to the posterior portion of the ear piece, as shown in fig. 6.
The ear piece 8 is connected to the ear piece on the other side by means of an adjustable snap 18.
In the filter thus situated posteriorly in correspondence of the mastoid, behind the right or left auricle, a small radial fan 17 is placed which sucks in the external air and delivers it to the nostrils and mouth via the hollow structure of the device, the ear piece 8, the stem 9 and the side wall 10, by flowing in front of these organs and continuing up to the other side of the face where there is a first air filter 13, characterized by a cubic shape, through which first air filter 13 the exhaled air flows outwards, this function being also enhanced by the presence of a submaxillary region provided with a third air filter 15 at the bottom of the transparent structure.
Both the purification effect of the filter and the quality of the inhaled air can be further enhanced and improved by passing the air fed from the outside through areas of the device specially provided for this purpose, which are impregnated with essential oils extracted from medicinal plants, the effects of which are known, which have disinfecting, anti-infective, bactericidal, antiviral, antibacterial, antifungal, anti-inflammatory, even balsamic or relaxing properties (melaleuca alternifolia, clove, laurel, propolis … …).
It is also possible to use essences of coffee, fruits, flowers and the like, the molecules of which are gradually released from capsules or tablets, not shown in the drawings, placed near the filter.
A fully digital version of the device is possible, mainly for bedridden persons in infectious disease wards and respiratory disease wards, but also for general inpatients.
For these applications, the device includes a connector for receiving oxygen directly from the hospital system.
The touch screen display worn on the wrist or waist belt of the patient provides parameters such as arterial pressure, heartbeat, body temperature, oxygen concentration in blood and the like, and also provides switch control, battery power and fan speed indication and default indication.
This type of device is adapted to be further enhanced with specific previous generation ceramic filters capable of ultrafiltration, which is currently in the advanced stage of research ("smart separation" SSL-LTD-UK).
In terms of production, the device can be replicated by 3D printing and is designed to occupy a market area that currently does not include any similar devices. The device can be implemented with the addition of headwear and complete housing, as it does not interfere with nor represent an obstacle to the operation of use.
The advantage of the present device is that it completely isolates the input port for infectious agents, i.e. conjunctiva, nose and mouth, from the surrounding environment, as with Covid-19 (new coronavirus), while zeroing or greatly weakening the need for keeping a defined distance between individuals, which makes it of great benefit for transportation companies, supermarkets, factories, schools, all public offices, stadiums and all environments of social, cultural and sports life.
Thus, it is expected that all citizens will be generally used, and more particularly in various work activities, hospital environments and all areas of disorders involving the respiratory system.
In summary, the utility model can be implemented in different models and modifications and variants of the filtering and sterilizing device, and can even involve the use of previous generation ceramic filters or ultraviolet rays.
All the details may be replaced with technically equivalent elements according to technical requirements and target purposes.
Claims (9)
1. A personal protective filter device configured to achieve a breathing chamber separated from the outside and enclosing a mouth, nose and a portion of a user's face, the personal protective filter device comprising a front support structure, a side rear structure, a side structure, and a front structure and an upwardly foldable protective cover, characterized in that:
the front support structure comprises a horizontal upper bar (5) resting on the forehead of the user at suitable intervals,
said lateral rear structure connected to said horizontal upper bar (5) comprises two ear pieces (8) extending from the temple to the rear of the pinna of the user,
said side structure extending laterally along said face, at both sides of said face and in front of the ears comprises two vertical bars (9), each of said vertical bars (9) joined with said ear pieces (8) located at the temples extending downwards and widening to form side walls (10) following the contour of the cheeks from the cheeks to the mandible,
the front structure (11) has the shape of a polyhedron provided on the upper side with an upper wall (14) that adjoins the front of the nose, close to the nose tip of the nose,
-the protective covering (6) is provided with folding means (7) for folding the protective covering upwards on the forehead, and
wherein each of the two side walls (10) of the side structure forms a hollow structure with the front structure (11), said hollow structure being adapted to house a respective air filter.
2. The personal protection filter device of claim 1, wherein both the side structures and the front structure are provided with a soft polymeric material (12) that adheres to the face of the user.
3. A personal protection filter device according to claim 1, characterized in that the two ear pieces (8) of the side rear structure extending behind the pinna of the user are connected to each other behind the nape of the neck by an adjustable locking means (18).
4. The personal protection filter device of claim 1, wherein one of the air filters is a under chin air filter.
5. The personal protection filter device of claim 1, wherein the air filters have a parallelogram or cylinder shape, respectively.
6. A personal protection filter device according to claim 5, characterized in that the air filter in the form of a cylinder is provided with a small radial fan (17) for facilitating the air intake.
7. The personal protection filter device according to any one of claims 1 to 6, characterized in that the front structure (11) is made of polycarbonate or transparent polymer material.
8. The personal protection filter device according to any one of claims 1 to 6, characterized in that one end of the ear piece (8) of the side rear structure is provided with a seat for housing a lithium battery at the level behind the auricle.
9. The personal protection filter device of any one of claims 1 to 6, wherein the air filter is associated with a bladder, sheet or replaceable filter for flavouring the filtered air.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT202000022960 | 2020-07-10 | ||
| IT102020000022960 | 2020-07-10 | ||
| PCT/IB2021/053714 WO2022008987A1 (en) | 2020-07-10 | 2021-05-04 | Individual protection filtering device aiming at safeguarding the respiratory tract and at preventing infectious diseases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220477000U true CN220477000U (en) | 2024-02-13 |
Family
ID=74184696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202190000725.4U Active CN220477000U (en) | 2020-07-10 | 2021-05-04 | Personal protection filter device |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4178388A1 (en) |
| JP (1) | JP3242778U (en) |
| CN (1) | CN220477000U (en) |
| WO (1) | WO2022008987A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6543450B1 (en) * | 1998-09-29 | 2003-04-08 | John T. Flynn | Survival mask |
| US6978782B2 (en) * | 2002-08-27 | 2005-12-27 | Amad Tayebi | Full face mask |
| CN105617565B (en) * | 2014-11-26 | 2019-03-29 | 比亚迪股份有限公司 | A kind of filtering type breathing mask |
| WO2017065853A1 (en) * | 2015-10-16 | 2017-04-20 | Yang Song | Particulate filter face mask having fan breathing assist |
| JP6863666B2 (en) * | 2015-10-22 | 2021-04-21 | スコット テクノロジーズ インコーポレイテッドＳｃｏｔｔ Ｔｅｃｈｎｏｌｏｇｉｅｓ， Ｉｎｃ． | Breathing mask with eyewear interface |
| CN107348574A (en) * | 2016-05-10 | 2017-11-17 | 杨挺 | A kind of haze protective mask |
-
2021
- 2021-05-04 CN CN202190000725.4U patent/CN220477000U/en active Active
- 2021-05-04 JP JP2023600057U patent/JP3242778U/en active Active
- 2021-05-04 WO PCT/IB2021/053714 patent/WO2022008987A1/en unknown
- 2021-05-04 EP EP21723913.6A patent/EP4178388A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022008987A1 (en) | 2022-01-13 |
| EP4178388A1 (en) | 2023-05-17 |
| JP3242778U (en) | 2023-07-11 |
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