WO2019112372A1 - 마스크 - Google Patents
마스크 Download PDFInfo
- Publication number
- WO2019112372A1 WO2019112372A1 PCT/KR2018/015530 KR2018015530W WO2019112372A1 WO 2019112372 A1 WO2019112372 A1 WO 2019112372A1 KR 2018015530 W KR2018015530 W KR 2018015530W WO 2019112372 A1 WO2019112372 A1 WO 2019112372A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- frame
- skeleton
- sheet
- filter sheet
- filter
- Prior art date
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Classifications
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- 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
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- 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
- A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
- A62B23/02—Filters for breathing-protection purposes for respirators
Definitions
- the present invention relates to a mask, and more particularly, to a mask for masking nose and mouth to prevent inhalation and scattering of germs and dusts such as hygienic hygiene.
- masks are widely used for personal hygiene, health, prevention of inhalation of pollutants in daily life or industrial fields, and recently, their use ranges have been expanded to various types of leisure activities such as riding.
- Such a mask is composed of a filtering part which is in close contact with a face when worn on the face to cover the nose and mouth of the wearer, and an earring band which is provided on both sides of the filtering part and is hooked to the user's ear.
- the mask according to the related art has a disadvantage in that, in the case of a wearer wearing glasses, fogging occurs in glasses due to burning and snorting, thereby avoiding use of the mask.
- such a conventional mask has a disadvantage that it can not cope with a change in the structure or the like in accordance with a change in the purpose and environment to be used.
- Patent Document 1 Korean Registration Practice No. 20-0403452 (2005.12.05)
- An embodiment of the present invention is to provide a mask that can be used while replacing the filter sheet, which is disposed on the front surface of the wearer's face and filters the air, according to the intended use and environment.
- an embodiment of the present invention is to provide a mask in which a filter sheet disposed on the front face is prevented from being brought into close contact with a face when worn on a face.
- the embodiment of the present invention is intended to provide a mask which is adapted to be received while separating the mouth and the nose when worn on the face.
- a mask according to an embodiment of the present invention has a three-dimensional shape corresponding to a facial contour, and has a nose receiving portion for receiving noses at upper and lower sides, and a soft skeleton frame having a mouth receiving portion for receiving mouths; A filter sheet detachably coupled to the skeleton frame to filter air sucked therein; And a wear band for wearing the filter sheet and the skeleton frame on the user's face.
- the skeleton frame may include an outer frame to which the outer circumferential surface of the filter sheet is wrapped; A vertical frame vertically arranged at the center of the outer frame to divide an inner side of the outer frame into left and right portions and having a central portion protruding toward the outside of the face; A horizontal frame connecting both left and right sides of the outer frame and a protruded central portion of the vertical frame; And a separation plate protruding in a direction opposite to the protruded vertical frame along the horizontal frame to form the nose receiving part and the mouth receiving part separated from each other.
- the skeleton frame may include a grid frame connecting the vertical frame and the horizontal frame in a lattice form from the inside of the outer frame.
- the skeleton frame may include a coupling hub in which a plurality of check boxes formed between the grid frames are coupled to the check valve passing through the filter sheet.
- the filter sheet is used while replacing a plurality of filters through a detachment from the skeleton frame, the front sheet being disposed on the front surface of the skeleton frame; And a rear sheet extending from the outer surface of the front sheet toward the central portion and surrounding the outer frame of the skeleton frame.
- the rear sheet may have a first opening portion communicating with the nose receiving portion of the skeleton frame, and a second opening portion communicating with the mouth receiving portion of the skeleton frame And the first opening and the second opening can be desorbed through insertion and extraction from the skeletal frame.
- the front sheet and the rear sheet may be integrally or independently bonded to each other.
- the mask according to an embodiment of the present invention may further include a first check valve provided at one or more outside of the filter sheet and connected to the mouthpiece to discharge the breath to the outside.
- a mask according to an embodiment of the present invention includes a soft skeleton frame formed in a three-dimensional shape corresponding to a facial contour and in which a plurality of filter sheets for filtering intake air are detached, An outer frame on which the outer peripheral surface of the sheet is wrapped; A vertical frame vertically arranged at the center of the outer frame to divide an inner side of the outer frame into left and right portions and having a central portion protruding toward the outside of the face; A horizontal frame connecting both left and right sides of the outer frame and a protruded central portion of the vertical frame; And a separation plate protruding in a direction opposite to the protruded vertical frame along the horizontal frame to form a nose receiving part and a mouth receiving part on the upper and lower sides of the outer frame, respectively.
- the skeleton frame may include a grid frame connecting the vertical frame and the horizontal frame in a lattice form from the inside of the outer frame; And a coupling hub formed between the grid frames and coupled to a check valve passing through the filter sheet.
- the mask according to the embodiment of the present invention may further include a second check valve provided at one or more outside of the filter sheet and connected to the nose receiving part to discharge the snort to the outside.
- a mask according to an embodiment of the present invention may include at least one mask check valve disposed at the outside of the filter sheet and connected to the mouthpiece to discharge the sound to the outside. And a second check valve provided at one or more outside of the filter sheet and connected to the nose receiving part to discharge the snort to the outside.
- the embodiment of the present invention can be replaced while removing the filter sheet from the skeletal frame according to the purpose and environment to be used when the filter sheet is placed on the face and is filtered on air.
- the filter sheet disposed on the front surface can be prevented from being attached to the face through the skeleton frame.
- the embodiment of the present invention is separated into the mouth receiving portion and the nose receiving portion through the separating plate when worn on the face, so that heat and mouth odor discharged from the mouth can be prevented from being transmitted to the nose.
- the person wearing the glasses can prevent the glasses from being fogged.
- FIG. 1 is an exploded perspective view of a mask according to an embodiment of the present invention.
- Fig. 2 is an exploded bottom perspective view of Fig. 1; Fig.
- FIG 3 is a front view of a skeleton frame applied to a mask according to an embodiment of the present invention.
- FIG. 4 is a front view of a skeleton frame applied to a mask according to an embodiment of the present invention.
- 5 to 10 are front views showing a modified example of a filter sheet applied to a mask according to an embodiment of the present invention.
- FIG. 11 is an operational view of a mask according to an embodiment of the present invention.
- FIG. 1 is an exploded perspective view of a mask according to an embodiment of the present invention
- FIG. 2 is an exploded bottom perspective view of FIG. 1
- FIG. 3 is a front view of a skeleton frame applied to a mask according to an embodiment of the present invention
- Figure 2 is a front view of a skeletal frame applied to a mask according to an embodiment of the invention.
- a mask 1 according to an embodiment of the present invention includes a skeletal frame 10, a filter sheet 20, and a wear band 30.
- the skeleton frame 10 has a three-dimensional shape corresponding to the contour of the user's face.
- the skeletal frame 10 has a nose receiving portion 11 for receiving the nose at the upper side and a mouth receiving portion 12 for receiving the mouth at the lower side .
- the skeleton frame 10 may be made of a soft material that can be easily folded or restored to its original state by the user's gripping or the like.
- the skeleton frame 10 may be made of silicon.
- the skeleton frame 10 may be made of various materials that can be deformed and restored by an external force, and is not limited to any particular material.
- the term of softness is not limited to synthetic resin but has a broad meaning including a metal wire whose shape is freely deformed by an external force and whose deformed state is maintained.
- the skeleton frame 10 includes an outer frame 13, a vertical frame 14, a horizontal frame 15, a separation plate 16, and a grating frame 17.
- the outer frame 13 is wrapped around the outer surface of the filter sheet 20 and has a three-dimensional shape corresponding to the contour of the user's face.
- the vertical frame 14 is vertically arranged at the center of the outer frame 13 so as to divide the inner side of the outer frame 13 into left and right portions and has a central portion on the outer side of the face, As shown in Fig.
- the vertical frame 14 is formed with a first guide groove 14a along its longitudinal direction as shown in a partially enlarged view in the figure.
- the first guide groove 14a serves as a guide for folding the skeletal frame 10, that is, the left and right sides of the outer frame 13 so as to face each other.
- the horizontal frame 15 connects the left and right sides of the outer frame 13 with the projecting central portion of the vertical frame 14.
- the separation plate 16 protrudes in the opposite direction in which the vertical frame 14 is protruded along the horizontal frame 15 to form the nose receiving portion 11 and the mouth receiving portion 12 separated upward and downward.
- This separating plate 16 separates the nose receiving portion 11 and the mouth receiving portion 12, thereby preventing heat and odor discharged from the mouth from being transmitted to the nose.
- the separator plate 16 is formed with a second guide groove 16a facing the opposite side in a portion in contact with the horizontal frame 15.
- the second guide groove 16a functions as a center point and a guide which can be folded toward the nose receiving portion 11 or the mouth receiving portion 12 when the outer frame 13 is folded to face the left and right sides.
- the lattice frame 17 connects the vertical frame 14 and the horizontal frame 15 in a lattice form on the inner side of the outer frame 13.
- This grating frame 17 separates the filter sheets 20 from each other to prevent them from contacting the user's face and maintains the overall shape of the filter sheet 20.
- the grid frame 17 also includes a coupling hub 17a to which a check valve passing through the filter sheet 20 is coupled.
- the coupling hub 17a is formed on at least one grid frame 17.
- the coupling hub 17a is formed on the lower side in such a manner that four coupling hubs 17a are communicated with the mouth receiving portion 12, 1, but it is not limited thereto.
- the coupling hub 17a may be formed in various numbers depending on the manufacture.
- the term of the lattice is not limited to a general plurality of rectangles connected, but has a generic meaning including a plurality of circles connected, a plurality of triangles connected, and the like.
- the skeletal frame 10 may include a plurality of position correction units 40 formed along the outer frame 13 for correcting the engagement position of the filter sheet 20 surrounding the outer frame.
- the position correcting unit 40 is composed of an engaging pin protruding from both sides of the outer frame 13 toward the filter sheet 20 and coupled to the pinhole 21 formed in the filter sheet 20.
- the engagement pin of the filter sheet 20 can be corrected to the correct position as the projecting engagement pin is coupled to the pinhole 21 of the filter sheet 20.
- the filter sheet 20 is detachably coupled to the skeletal frame to filter the inhaled air.
- Such a filter sheet 20 has various forms and is used while being replaced with various filter sheets 20 through being detached from the skeleton frame 10.
- Such a filter sheet 20 includes a front sheet 22, And a sheet 23.
- the front sheet 22 is disposed on the front of the skeleton frame 10 to cover the face of the user and directly blocks the intake of various contaminants such as dust and germs while covering the nose and mouth, Shape so as to coincide with the shape of the end portion.
- the front sheet 22 serves as a filter for effectively blocking the suction of the pollutants, and the front sheet 22 is shown as a single layer, but the present invention is not limited thereto.
- the front sheet 22 may be formed by repeatedly stacking the front sheets 22 of the same material or repeatedly stacking the front sheets 22 of different materials.
- the front sheet 22 may perform a function of a filter itself, and a separate filter layer (not shown) may be further formed to improve the function of the filter.
- the filter layer may include any type of material capable of blocking the contaminants, such as nonwoven fabric, activated carbon filter material, electrostatic synthetic fiber filter material, and the like.
- the front sheet 22 may be a single layer or may be composed of an outer shell and an inner shell, and a filter layer may be formed of various materials between the outer shell and the inner shell. And the like.
- the back sheet 23 is extended along the outer surface of the front sheet 22 toward the central portion to enclose the outer frame 13 of the skeleton frame 10 and is brought into close contact with the skin of the user.
- the rear sheet 23 may be integrally or separately formed with the front sheet 22 and may be connected to each other by thermal bonding or sewing when they are independent of the front sheet 22.
- the rear sheet 23 has a first opening 24 opened to communicate with the nose receiving portion 11 of the skeleton frame 10 and a second opening 25 opened to communicate with the mouth receiving portion 12 And a separation surface 26 is formed between the first opening portion 24 and the second opening portion 25.
- the first opening 24 and the second opening 25 are detached from the skeleton frame 10 through selectively inserted or withdrawn from the skeleton frame 10 in the folded state.
- the first opening 24 and the second opening 25 are formed with a plurality of cut-out grooves 27 toward the outside opened along the opened face.
- the cutting groove 27 is opened so as to bring the nose into contact with the opening surface at the inlet.
- the separating surface 26 contacts the horizontal frame 15 of the skeletal frame 10 to prevent the horizontal frame 15 from coming into direct contact with the skin.
- 5 to 10 are front views showing a modified example of a filter sheet applied to a mask according to an embodiment of the present invention.
- the filter sheet 20 may be a basic type in which air is introduced and discharged through the front sheet 22.
- the filter sheet 20 includes a skeleton frame One coupling hole 28a connected to one coupling hub 17a communicating with the mouth accommodating portion 12 side of the input shaft 10 may be formed.
- the filter sheet 20 includes two coupling holes 28a and 28b connected to two coupling hubs 17a communicating with the mouth portion 12 side of the skeleton frame 10, Can be formed.
- the filter sheet 20 includes two coupling holes 28a and 28b connected to two coupling hubs 17a communicating with the mouth portion 12 side,
- One coupling hole 28e that is, three coupling holes 28a, 28b, and 28e, which is connected to the coupling hub 17a communicating with the coupling hub 17a, can be formed.
- the filter sheet 20 includes two coupling holes 28c and 28d connected to two coupling hubs 17a communicating with the mouth portion 12 side on both sides,
- One coupling hole 28e that is, three coupling holes 28c, 28d and 28e, which is connected to the coupling hub 17a communicating with the side of the rotor 11, may be formed.
- the filter sheet 20 includes a coupling hub 17a which communicates with the side of the nose receiving portion 11 of the skeleton frame 10 together with four engagement holes 28a, 28b, 28c and 28d. 28a, 28b, 28c, 28d, and 28e in which a coupling hole 28e connected to the coupling hole 28a is formed.
- 28b, 28c, 28d, and 28e are provided with keyways 52a, 52b, 52c, 52d, and 52e, respectively.
- the key groove 52 may be omitted according to the manufacturing process.
- a hose-shaped external filter separate from the check valve may be connected to the coupling holes 28c and 28d of the coupling holes 28a, 28b, 28c, 28d, and 28e (not shown)
- the filter sheet 20 having various forms can be used depending on the environmental requirements such as the place to be used and personal preference. That is, the number of check valves for discharging nostrils and bites to the outside in correspondence with the number of the coupling holes 28a, 28b, 28c, 28d, and 28e formed in the filter sheet 20 can be selected and used.
- the mask 1 may include a first check valve 50 and a second check valve.
- the first check valve (50) is provided at one or more outside the front sheet (22) of the filter sheet (20) and connected to the mouth receiving part (12) to discharge the breath to the outside.
- the first check valve 50 is a one-way valve commonly used in the art and has a coupling hole 28a formed in the front seat 22 so that one side communicates with the coupling hub 17a of the skeleton frame 10. [ , 28b, 28c, 28d, and is coupled to the coupling hub 17a of the skeleton frame 10.
- the first check valve 50 is inserted through the key groove 52 formed in the filter sheet 20 and the coupling hub 17a while the coupling key 51 protruding outward from one side passes through the key groove 52 formed in the filter sheet 20 and the coupling hub 17a, And is fixed to the coupling hub 17a through rotation to one side.
- the second check valve has the same configuration as the first check valve 50 described above and is provided at one or more outside the front sheet 22 of the filter sheet 20 and is connected to the nose receiving portion 11 The nostril is discharged to the outside.
- the second check valve is provided with a coupling hub 17a and a coupling hub 17b through a coupling hole 28e formed in the front seat so that one side thereof communicates with a coupling hub 17a formed on the side of the nose receiving portion 11 of the skeleton frame 10. [ (Not shown).
- first check valve 50 and the second check valve may be selectively provided with either the first check valve 50 or the second check valve, or may be provided together with each other.
- first check valve 50 and the second check valve may be selectively provided depending on the number and position of the coupling holes 28a, 28b, 28c, 28d, and 28e formed in the front seat 22 .
- the first check valve 50 and the second check valve are provided to discharge the filtration sheet 20 and the snort.
- the present invention is not limited to this, and the first check valve 50 or the second check valve
- One of the check valves may be a filter for filtering the sucked outside air.
- first check valve 50 and the second check valve are illustrated as circular in the drawing, the present invention is not limited thereto. That is, the first check valve 50 and the second check valve can be applied to all types of check valves capable of discharging the fluid in one direction regardless of the shape thereof.
- the wearing band 30 may be formed of earrings provided on both sides of the filter sheet 20 or the skeleton frame 10 and hooked to both sides of the user's ear.
- the wear band 30 may be in the form of an adhesive band which connects both sides of the filter sheet 20 or the skeleton frame 10 and is closely attached along the user's head circumference when worn (not shown) (not shown)
- the wearing band 30 is hooked to the position correcting unit 40 formed of the engaging pins protruding from both sides of the outer frame 13 and then a separate engaging block is coupled to the engaging pin, (Not shown).
- FIG. 11 is an operational view of a mask according to an embodiment of the present invention.
- the mask 1 inflows external air to the side of the nose receiving portion 11 at the time of inhalation through the nose of the user, The first check valve 50 is opened, and the breath is discharged to the outside.
- the filtration sheet 20 to which the plurality of first check valves 50 are applied, the filtration sheet 20 to which the second check valve is applied, and the first check valve 50 and the filter sheets 20 to which the second check valve is applied together can be selectively removed from the skeleton frame 10.
- the front sheet 22 disposed on the front surface can be prevented from being brought into close contact with the face through the lattice frame 17 of the skeleton frame 10, and when worn on the face, (11) and the mouth receiving portion (12), the heat and mouth odor discharged from the mouth can be prevented from being transmitted to the nose.
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- Physical Education & Sports Medicine (AREA)
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- Textile Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
Description
Claims (10)
- 안면 윤곽과 대응되는 입체형태로 이루어지고, 상측과 하측에 각각 코를 수용시키는 코 수용부와, 입을 수용시키는 입 수용부가 형성되는 연질의 골격 프레임;상기 골격 프레임으로부터 탈착가능하게 결합되어 흡입되는 공기를 여과시키는 여과 시트; 및상기 여과 시트와 골격 프레임을 사용자의 안면에 착용시키는 착용 밴드; 를 포함하는 마스크.
- 제1항에 있어서,상기 골격 프레임은상기 여과 시트의 외주면이 감싸지는 외곽 프레임;상기 외곽 프레임의 중앙에 수직하게 배치되어 상기 외곽 프레임의 내측을 좌,우로 구획시키고, 중앙부가 안면의 외측을 향하여 돌출되는 수직 프레임;상기 외곽 프레임의 좌,우 양측과 상기 수직 프레임의 돌출된 중앙부를 연결시키는 수평 프레임; 및상기 수평 프레임을 따라 상기 수직 프레임이 돌출된 반대방향으로 돌출형성되어 각각 분리된 상기 코 수용부와 상기 입 수용부를 형성시키는 분리판; 을 포함하는 마스크.
- 제2항에 있어서,상기 골격 프레임은상기 외곽 프레임의 내측에서 상기 수직 프레임 및 수평 프레임의 사이를 격자형태로 연결시키는 격자 프레임; 을 포함하는 마스크.
- 제3항에 있어서,상기 골격 프레임은상기 격자 프레임들의 사이에 복수로 형성되어 상기 여과 시트를 관통하는 체크밸브가 결합되는 결합 허브; 를 포함하는 마스크.
- 제1항에 있어서,상기 여과 시트는상기 골격 프레임으로부터 탈착되는 것을 통해 복수를 교체시키면서 사용하는 것으로,상기 골격 프레임의 전면에 배치되는 전면 시트; 및상기 전면 시트의 외곽면을 따라 중심부를 향하도록 연장형성되어 상기 골격 프레임의 외곽 프레임을 감싸는 후면 시트; 를 포함하는 마스크.
- 제5항에 있어서,상기 후면 시트는상기 골격 프레임의 코 수용부와 소통되도록 개구된 제1 개구부와, 상기 골격 프레임의 입 수용부와 소통되도록 개구된 제2 개구부가 형성되고,상기 제1 개구부 및 제2 개구부는상기 골격 프레임으로부터 삽입 및 인출되는 것을 통해 탈착되는 마스크.
- 제5항에 있어서,상기 전면 시트 및 후면 시트는서로 일체 또는 독립적으로 이루어져 서로 접착되는 마스크.
- 제1항에 있어서,상기 여과 시트의 외측에 하나 이상으로 구비되고, 상기 입 수용부와 연결되어 입김을 외부로 배출시키는 제1 체크밸브; 를 더 포함하는 마스크.
- 안면 윤곽과 대응되는 입체형태로 이루어지고, 흡입되는 공기를 여과시키는 복수의 여과 시트가 탈착되는 연질의 골격 프레임을 포함하는 마스크에 있어서,상기 골격 프레임은상기 여과 시트의 외주면이 감싸지는 외곽 프레임;상기 외곽 프레임의 중앙에 수직하게 배치되어 상기 외곽 프레임의 내측을 좌,우로 구획시키고, 중앙부가 안면의 외측을 향하여 돌출되는 수직 프레임;상기 외곽 프레임의 좌,우 양측과 상기 수직 프레임의 돌출된 중앙부를 연결시키는 수평 프레임; 및상기 수평 프레임을 따라 상기 수직 프레임이 돌출된 반대방향으로 돌출형성되어 상기 외곽 프레임의 상측과 하측에 각각 코 수용부 및 입 수용부를 형성시키는 분리판; 으로 이루어지는 것을 특징으로 하는 마스크.
- 제9항에 있어서,상기 골격 프레임은상기 외곽 프레임의 내측에서 상기 수직 프레임 및 수평 프레임의 사이를 격자형태로 연결시키는 격자 프레임; 및상기 격자 프레임들의 사이에 복수로 형성되어 상기 여과 시트를 관통하는 체크밸브가 결합되는 결합 허브; 를 포함하는 것을 특징으로 하는 마스크.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020170167136A KR102092218B1 (ko) | 2017-12-07 | 2017-12-07 | 마스크 |
KR10-2017-0167136 | 2017-12-07 |
Publications (1)
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WO2019112372A1 true WO2019112372A1 (ko) | 2019-06-13 |
Family
ID=66750543
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PCT/KR2018/015530 WO2019112372A1 (ko) | 2017-12-07 | 2018-12-07 | 마스크 |
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KR (1) | KR102092218B1 (ko) |
WO (1) | WO2019112372A1 (ko) |
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IT202000015907A1 (it) * | 2020-07-01 | 2020-10-01 | Giuliano Mazzocco | Separatore d’aria per mascherine |
IT202000017401A1 (it) * | 2020-07-17 | 2020-10-17 | Giuliano Mazzocco | Separatore d’aria con snodo per mascherine |
CN113615907A (zh) * | 2020-05-09 | 2021-11-09 | 清锋(北京)科技有限公司 | 一种新型3d打印口罩 |
WO2021224734A1 (en) * | 2020-05-04 | 2021-11-11 | Upbiocare S.R.L. | Bidirectional reusable filtering face mask |
WO2021260481A1 (en) * | 2020-06-22 | 2021-12-30 | Barnfather Marc | A mask |
EP3967374A1 (de) * | 2020-09-10 | 2022-03-16 | IP ideas production GmbH & Co. KG | Maskeneinsatz und maske |
WO2022057958A1 (en) * | 2020-09-18 | 2022-03-24 | Vladimir Kranz | Filtration device |
IT202100012446A1 (it) * | 2021-05-14 | 2022-11-14 | Piero Zoppi | Accessorio per mascherina di protezione |
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KR102129298B1 (ko) * | 2019-06-19 | 2020-07-02 | 고창석 | 기능성 미세먼지 마스크 |
KR102273111B1 (ko) * | 2020-08-21 | 2021-07-02 | 김재현 | 평면형 마스크와 함께 사용가능한 3d 마스크 가드 |
KR102260025B1 (ko) * | 2020-09-01 | 2021-06-02 | 이광수 | 필터교체가 가능한 코차단부 및 입차단부 분리형 마스크 |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110289116A (zh) * | 2019-06-25 | 2019-09-27 | 陈伟娜 | 一种有效贴合口鼻的粒子手术防护装置 |
CN110289116B (zh) * | 2019-06-25 | 2023-02-28 | 陈伟娜 | 一种有效贴合口鼻的粒子手术防护装置 |
WO2021224734A1 (en) * | 2020-05-04 | 2021-11-11 | Upbiocare S.R.L. | Bidirectional reusable filtering face mask |
CN113615907A (zh) * | 2020-05-09 | 2021-11-09 | 清锋(北京)科技有限公司 | 一种新型3d打印口罩 |
CN113615907B (zh) * | 2020-05-09 | 2023-09-05 | 清锋(北京)科技有限公司 | 一种新型3d打印口罩 |
WO2021260481A1 (en) * | 2020-06-22 | 2021-12-30 | Barnfather Marc | A mask |
IT202000015907A1 (it) * | 2020-07-01 | 2020-10-01 | Giuliano Mazzocco | Separatore d’aria per mascherine |
IT202000017401A1 (it) * | 2020-07-17 | 2020-10-17 | Giuliano Mazzocco | Separatore d’aria con snodo per mascherine |
EP3967374A1 (de) * | 2020-09-10 | 2022-03-16 | IP ideas production GmbH & Co. KG | Maskeneinsatz und maske |
WO2022057958A1 (en) * | 2020-09-18 | 2022-03-24 | Vladimir Kranz | Filtration device |
IT202100012446A1 (it) * | 2021-05-14 | 2022-11-14 | Piero Zoppi | Accessorio per mascherina di protezione |
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KR102092218B1 (ko) | 2020-04-28 |
KR20190067323A (ko) | 2019-06-17 |
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