US20180065719A1 - Diving Mask - Google Patents
Diving Mask Download PDFInfo
- Publication number
- US20180065719A1 US20180065719A1 US15/675,323 US201715675323A US2018065719A1 US 20180065719 A1 US20180065719 A1 US 20180065719A1 US 201715675323 A US201715675323 A US 201715675323A US 2018065719 A1 US2018065719 A1 US 2018065719A1
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- US
- United States
- Prior art keywords
- mask
- breathing
- airway
- compartment
- diving
- 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.)
- Abandoned
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/02—Divers' equipment
- B63C11/12—Diving masks
- B63C11/16—Diving masks with air supply by suction from diver, e.g. snorkels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/02—Divers' equipment
- B63C11/12—Diving masks
- B63C11/14—Diving masks with forced air supply
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/02—Divers' equipment
- B63C11/12—Diving masks
- B63C2011/128—Straps, or the like for fastening diving masks; Accessories therefor, e.g. buckles
Definitions
- the invention relates to diving equipment and, in particular, to a diving mask.
- the invention provides a diving mask without the problem of fog formation.
- the disclosed diving mask comprises a mask and a breathing tube, with the breathing tube connecting to the mask.
- the mask is provided with a viewing compartment, a breathing compartment, a first airway and a second airway.
- the breathing tube is provided with a single breathing airway.
- the first airway connects the breathing airway and the viewing compartment.
- the second airway connects the breathing compartment and the breathing airway.
- the viewing compartment and the breathing compartment are connected through a first check valve.
- the breathing compartment and the second airway are connected through a second check valve.
- outside air can enter the breathing compartment through the breathing airway, the first airway, the viewing compartment and the first check valve.
- the exhaled air in the breathing compartment can be expelled out of the mask through the second check valve, the second airway, and the breathing airway.
- Fresh inhaled air carries away fog in the viewing compartment. Exhaled heat is prevented from forming fog on the inner surface of the viewing compartment. This achieves the effect of preventing fog formation.
- the breathing tube has only a single breathing airway, making the structure of the breathing tube simple. The user can breathe more smoothly. The cost is reduced.
- An embodiment of the invention has two second airways.
- the two airways are connected to opposite sides of the first airway.
- the mask includes a mask glass and a mask liner.
- the mask liner is provided on the mask glass to divide the mask glass into the viewing compartment and the breathing compartment.
- the first airway is formed on the mask liner.
- the outer side of the mask glass and the inner side of the mask liner together form the second airway.
- the first check valve and the second check valve are provided on the mask liner.
- the mask liner includes a frame part, a dividing part, and a ventilating part.
- the dividing part is connected within the frame part to divide the mask glass into the viewing compartment and the breathing compartment.
- the first check valve is formed on the dividing part.
- the second check valve is formed at the junction between the dividing part and the frame part.
- the inner side of the frame part is the inner side of the mask liner.
- the ventilating part is connected to the rim of the frame part and is formed with the first airway.
- the diving mask includes a mask frame connected to the mask glass and the frame part.
- the mask frame includes an accommodating tube to accommodate the ventilating part.
- the breathing tune connects to the accommodating tube.
- the end of the breathing tube away from the accommodating tube is formed with a ventilating hole connecting to the breathing airway.
- the breathing tube is connected to the mask in a rotatable way.
- the diving mask includes a fold-lock structure to fasten the breathing tube to the mask in a rotatable way.
- the fold-lock structure includes a handle and a hook.
- the handle and the hook are installed on the mask in a rotatable way and sharing the same rotating axis.
- the hook fastens the breathing tube to the mask.
- the handle and the hook are in a second position, the hook and the breathing tube are separate so that the breathing tube can rotate with respect to the mask.
- FIG. 1 is a three-dimensional schematic view of the disclosed diving mask
- FIG. 2 is a rear view of the disclosed diving mask
- FIG. 3 is an exploded view of the disclosed diving mask
- FIG. 4 is a magnified view of part IV in FIG. 3 ;
- FIG. 5 is a planar view of the disclosed diving mask
- FIG. 6 is a cross-sectional view of the disclosed diving mask
- FIG. 7 is a magnified view of part VII in FIG. 6 ;
- FIG. 8 is another planar view of the disclosed diving mask
- FIG. 9 is another cross-sectional view of the disclosed diving mask.
- FIG. 10 is a magnified view of part X in FIG. 9 .
- connection can be a fixed connection, a detachable connection, or an integral connection.
- a connection can be a mechanical connection, an electrical connection, or a telecommunication connection. It can be a direct connection or a connection via some intermediate agent. It can be the internal connection between two elements or refers to the interaction between two elements. A person skilled in the art should be able to readily understand such terms in the description of the invention.
- the invention provides a diving mask 100 comprising a mask 101 and a breathing tube 138 with the breathing tube 138 connecting to the mask 101 .
- the mask 101 is formed with a viewing compartment 103 , a breathing compartment 105 , a first airway 107 , and a second airway 109 .
- the breathing tube 138 is formed with a single breathing airway 111 .
- the first airway connects the breathing airway 107 connects the breathing airway 111 and the viewing compartment 103 .
- the second airway 109 connects the breathing compartment 105 and the breathing airway 111 .
- the viewing compartment 103 and the breathing compartment 105 are connected via a first check valve 113
- the breathing compartment 105 and the second airway 109 are connected via a second check valve 117 .
- ambient air can enter the breathing compartment 105 via the breathing airway 111 , the first airway 107 , the viewing compartment 103 , and the first check valve 113 .
- the exhaled air in the breathing compartment 105 is expelled out of the mask 101 via the second check valve 117 , the second airway 109 , and the breathing airway 111 .
- Fresh inhaled air takes away fog formed inside the viewing compartment 103 .
- Warm exhaled air is prevented from touching the inner surface of the viewing compartment 103 to form fog. This achieves the effect of preventing fog formation on the mask 101 .
- the breathing tube 138 has only a single breathing airway 111 , making the structure of the breathing tube 138 simple. The user can breathe more smoothly, while the cost is reduced.
- the first airway 107 can be an intake way formed at the top of the mask 101 .
- the second airway 109 can be an exhaust way formed at one side of the mask 101 .
- one end of the second airway 109 connects to the bottom of the mask 101 , and the other end connects to the top of the mask 101 .
- the warm exhaled air is prevented from touching the inner surface of the viewing compartment to form fog, achieving the goal of preventing fog formation.
- the second airway 109 is curved.
- the mask 101 is formed with a first ventilating hole 132 connecting the viewing compartment 103 and the breathing compartment 105 .
- the first check valve 113 is provided at the first ventilating hole 132 to ensure that the airflow goes only in one way from the viewing compartment 103 to the breathing compartment 105 .
- the mask 101 is also formed with a second ventilating hole 134 connecting the breathing compartment 105 and the second airway 109 .
- the second check valve 117 is provided at the second ventilating hole 134 to ensure that the airflow of exhaled air goes only in one way from the breathing compartment 105 to the second airway 109 .
- the breathing tube 138 is formed with a single breathing airway 111 , so that the air entering the mask 101 and leaving the mask 101 share the same airway. This greatly simplifies the structure and cost of the breathing tube 138 . Breathing also becomes smoother.
- the breathing tube 138 is made by injection molding. More explicitly, a single insert is placed in the mold cavity for forming the breathing tube 128 . Then a molding material is injected into the mold cavity. After the molding material is cooled, it is demolded to obtain a breathing tube 138 having a single breathing airway 111 .
- the mask 101 When the diving mask 100 is in use, the mask 101 covers the human face.
- the mask 101 may be under the water surface with the breathing tube 138 protruding from the water surface, so that the user can inhale the outside air and exhale his own gas.
- the viewing compartment 103 enables the user to view the environment outside the mask 101 .
- the breathing compartment 105 is for breathing.
- the viewing compartment 103 corresponds human eyes while the breathing compartment 105 corresponds to human nose and mouth (including the chin) portions and the face profile.
- the breathing compartment 105 has a shape that matches human nose and mouth (including the chin).
- the number of the first check valves 113 is two.
- the number of the second airways 109 is two, and the two second airways 109 are to opposite sides of the first airway 107 .
- the exhaled air amount is increased, improving the smoothness in breathing when using the mask 101 .
- connection has the meanings of connection and communication. That is, one end of the second airway 109 is connected to one side of the first airway 107 , and the inner space of the second airway 109 is in fluid communication with the inner space of the first airway 107 .
- the air exhaled via the second airway 109 may share the first airway 107 , sending the exhaled air into the breathing airway 111 to be expelled out of the mask 101 .
- the mask 101 includes a mask glass 102 and a mask liner 114 .
- the mask liner 114 is disposed on the mask glass 102 to divide the mask glass 102 into the viewing compartment 103 and the breathing compartment 105 .
- the first airway 107 is formed on the mask liner 114 .
- the outer side of the mask glass 102 and the inner side of the mask liner 114 together form a second airway 109 .
- the first check valve 113 and the second check valve 117 are provided on the mask liner 114 .
- the mask 101 is easier to manufacture, and the cost is lower.
- the materials of the mask glass 102 and the mask liner 114 can be selected according to the actual needs.
- the mask 101 thus has wider applications.
- a first portion 104 of the mask glass 102 corresponding to the viewing compartment 103 may be made of a transparent resin material to facilitate viewing of the underwater view.
- the first portion 104 of the mask glass 102 corresponding to the viewing compartment 103 is substantially flat.
- the first portion 104 of the mask glass 102 corresponding to the viewing compartment 103 may be formed as a planar lens, a myopic lens, or a hyperopic lens.
- a second portion 106 of the mask glass 102 corresponding to the breathing compartment 105 has a shape that matches the nose and mouth (including the chin) of the human being.
- the mask liner 114 is used for tight fitting with the face to ensure air tightness and watertightness.
- the mask liner 114 may be made of a softer material.
- the first airway 107 is formed at the top of the mask liner 114 .
- the outer side of the mask glass 102 is formed with an air groove 115 .
- the inner surface 119 of the mask liner 114 seals the air groove 115 , thereby forming the second airway 109 .
- the mask liner 114 includes a frame part 122 , a dividing part 124 , and a ventilating part 126 .
- the dividing part 124 is connected to the frame part 122 .
- the dividing part 124 divides the mask glass 102 into the viewing compartment 103 and the breathing compartment 105 .
- the first check valve 113 is provided on the dividing part 124
- the second check valve 117 is provided at the unction between the dividing part 124 and the frame part 122 .
- the inner side of the frame part 122 is the inner side of the mask liner 114 .
- the ventilating part 126 is connected to the rim of the frame part 122 and is formed with the first air passage 107 .
- the first ventilating hole 132 is formed on the dividing part 124 .
- the frame part 122 matches the human facial profile to cover the human face.
- the second ventilating hole 134 is formed at the junction between the dividing part 124 and the frame part 122 .
- the number of the second air ventilating holes 134 is two, and the number of the second check valves 117 is also two.
- the dividing part 124 has a shape matching with the human nose bridge. Therefore, the number of the first ventilating holes 132 is preferably two. They are formed on both sides of the highest position of the dividing part 124 . In the embodiment shown in FIG. 3 , each of the first ventilating holes 132 includes a plurality of first small vent holes, and each of the second ventilating holes 134 includes a plurality of second small vent holes.
- the rim of the dividing part 124 can be pressed against the inner surface of the mask glass 102 using a liner fixing strip 136 . This ensures the airtightness of the viewing compartment 103 and the breathing compartment 105 at the rim of the dividing part 124 .
- the first check valve 113 includes a fixing post 121 and a sealing film 123 .
- the fixing post 121 is connected to the sealing film 123 .
- the fixing post 121 may be fixed to the dividing part 124 by, for example, an interference fit.
- the sealing film 123 attaches tightly against the surface of the dividing part 124 inside the breathing compartment 105 to seal the first ventilating hole 132 .
- the air pressure in the breathing compartment 105 is reduced when the user inhales.
- An air pressure is formed between the viewing compartment 103 and the breathing compartment 105 .
- the air with a larger air pressure in the viewing compartment 103 flushes the sealing film 123 to enter the breathing compartment 105 , thereby reaching a balance in air pressure.
- the sealing film 123 re-seals the first ventilating hole 132 .
- the structure of the second check valve 117 is the same as that of the first check valve 113 .
- the sealing film of the second check valve 117 attaches tightly against the inner surface of the second airway 109 to seal the second ventilating hole 134 .
- the operation principle of the second check valve 117 is the same as that of the first check valve 113 , and is not further described herein.
- the diving mask 100 includes a mask frame 116 connecting the mask glass 102 and the frame part 122 .
- the strength of the diving mask 100 is enhanced, thereby extending the lifetime thereof.
- the mask frame 116 can support the entire diving mask 100 .
- the mask frame 116 is shaped to match the human face so as to have better connections with the mask glass 102 and the mask liner 114 .
- the mask frame 116 has an opening part 118 .
- the mask frame 116 is opened from the opening part 118 in order to fit the mask glass 102 and the mask liner 114 to the mask frame 116 .
- the opening part 118 can be closed using a mask locking screw 120 .
- the mask glass 102 and the mask liner 114 are thus fastened and fixed to the mask frame 116 .
- the mask frame 116 includes an accommodating tube 146 that accommodates the ventilating part 126 .
- the breathing tube 138 is connected to the accommodating tube 146 , and the end of the breathing tube 138 away from accommodating tube 146 is formed with a ventilating hole 174 connecting to the breathing airway 111 .
- the accommodating tube 146 protects the ventilating part 126 , preventing the ventilating part 126 from leaking due to damages. Since the ventilating hole 174 is formed at the end of the breathing tube 138 away from the accommodating tube 146 , the effective air exchange length of the breathing tube 138 becomes longer, increasing the diving depth of the diving mask 100 .
- the end of the breathing tube 138 provided with the ventilating hole 174 can be extended out of the water surface, so that the user can breathe the outside air through the ventilating hole 174 .
- the diving mask 100 includes a water ball valve 168 and a gasket 170 .
- the gasket 170 is provided with a first air hole 172 and a second air passage 173 , with the first air hole 172 and the second air hole 173 formed with a space in between.
- the water ball valve 168 is capable of sealing the first air hole 172 .
- both the water ball valve 168 and the gasket 170 are inside the breathing tube 138 .
- the gasket 170 is generally made of a soft material, such as soft rubber.
- the diving mask 100 includes a gasket support 178 onto which the gasket 170 is secured.
- the gasket 170 is located between the water ball valve 168 and the gasket support 178 .
- the gasket support 178 may be secured to a snorkel lid 180 at one end of the breathing tube 138 by engagement.
- the gasket support 178 is formed with a third air hole 177 and a fourth air hole 179 , with the third air hole 177 and the fourth air hole 179 formed with a space in between.
- the first air hole 172 is in fluid communications with the third air hole 177
- the second air hole 173 is in fluid communications with the fourth air hole 179 .
- the gasket support 178 may be made of hard plastic. When the water ball valve 168 is pressed against the gasket 170 , the gasket support 178 acts as a support to enhance the sealing effect.
- the outside air can enter the breathing tube 138 through the ventilating hole 174 and reach the snorkel lid 180 through the first air hole 172 and the third air hole 177 .
- the air inside the snorkel lid 180 turns and enters the breathing airway 111 through the fourth air hole 179 and the second air hole 173 .
- air is exhaled from the breathing airway 111 , it goes outside of the diving mask 100 in the opposite direction along the above-mentioned path.
- the breathing tube 138 is rotatably connected to the mask 101 .
- the breathing tube 138 may be rotatably connected to the mask 101 by a shaft connection.
- the breathing tube 138 is rotatably connected to the accommodating tube 146 of the mask frame 116 .
- the diving mask 100 includes a fold-lock structure 140 that fastens the breathing tube 138 onto the mask 101 in a rotatable way.
- the breathing tube 138 can be fixed in the folded position and the open position, increasing the ease of use of the diving mask 100 .
- the fold-lock structure 140 includes a handle 142 and a hook 144 .
- the handle 142 and the hook 144 can be coaxially installed on the mask 101 in a rotatable way.
- the hook 144 locks the breathing tube 138 onto the mask 101 .
- the hook 144 and the breathing tube 138 are separate so that the breathing tube 138 can rotate with respect to the mask 101 .
- the handle 142 and the hook 144 are coaxially installed on the mask frame 116 .
- the hook 144 locks the breathing tube 138 onto the mask frame 116 .
- the handle 142 and the hook 144 are at the second position on the mask frame 116 , the hook 144 and the breathing tube 138 are separate to allow the breathing tube 138 to rotate with respect to the mask frame 116 .
- the outer surface of the accommodating tube 146 is provided with a fixing part 148 which is formed with a first shaft hole 150 .
- the handle 142 is installed on the mask frame 116 in a rotatable way.
- the handle 142 is connected with the hook 144 through a second shaft 154 . Therefore, the handle 142 and the hook 144 are installed on the mask frame 116 in a rotatable way with respect to the second rotary shaft 154 .
- the outer surface of the breathing tube 138 is provided with an engaging part 156 and a first rotary connecting part 158 , which are separately disposed on opposite sides of the breathing tube 138 .
- the hook 144 engages the engaging part 156 to lock the breathing tube 138 onto the mask frame 116 .
- the first rotary connecting part 158 is provided with a first rotary hole 160 .
- the portion corresponding to the accommodating tube 146 of the first rotary connecting part 158 is provided with two second rotary connecting parts 162 (only one of the second rotary connecting parts 162 is shown in FIG. 5 ).
- the two second rotary connecting parts 162 are spaced apart to form an accommodating space.
- Each of the second rotary connecting parts 162 is formed with a second rotary hole 164 , and the two second rotary holes 164 are aligned.
- the first rotary connecting part 158 is located inside the accommodating space.
- the first rotary hole 160 is aligned with the two second rotary holes 164 .
- a third rotary shaft 166 is successively fitted into one of the second rotary hole 164 , the first rotary hole 160 and the other second rotary hole 164 , thereby achieving a rotational connection between the breathing tube 138 and the accommodating tube 146 .
- the bottom end of the breathing tube 138 presses against the end face of the ventilating part 126 of the mask liner 114 .
- the handle 142 is pressed downward toward the direction of the accommodating tube 146 .
- the mask liner 114 is made of an elastic material.
- the handle 142 When the diving mark 100 is not in use and one needs to fold the breathing tube 138 , the handle 142 should be pushed upward. Through the second rotary shaft 154 , the handle 142 drives the hook 144 to depart from the engaging part 156 of the breathing tube 138 (see FIGS. 8, 9 and 10 ). In this case, the breathing tube 138 can rotate with respect to the mask frame 116 . The handle 142 and the hook 144 are at the second position on the mask frame 116 . One can then readily fold the breathing tube 138 .
- the foldable function of the breathing tube 138 is for the convenience of storage and carrying of the diving mask 100 .
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
A diving mask comprises a mask and a breathing tube. The mask is provided with a viewing compartment, a breathing compartment, a first airway and a second airway. The breathing tube is provided with a single breathing airway. The first airway connects the breathing airway and the viewing compartment. The second airway connects the breathing compartment and the breathing airway. The viewing compartment and the breathing compartment are connected through a first check valve. The breathing compartment and the second airway are connected through a second check valve. When the above-mentioned diving mask is in use, outside air can enter the breathing compartment through the breathing airway, the first airway, the viewing compartment and the first check valve. The exhaled air in the breathing compartment can be expelled out of the mask through the second check valve, the second airway, and the breathing airway.
Description
- The invention relates to diving equipment and, in particular, to a diving mask.
- Currently, as one of the emerging sports, more people loves diving. When diving, people want to see the underwater scenes. Therefore, diving masks are required.
- However, when people breathe with a diving mask under the water, the air produced as the user breathes is likely to produce fog on the inner surface of the diving mask. The fog thus blocks people's view. Therefore, it is imperative to solve the problem of fog formation on the diving mask.
- In view of the foregoing, the invention provides a diving mask without the problem of fog formation.
- The disclosed diving mask comprises a mask and a breathing tube, with the breathing tube connecting to the mask. The mask is provided with a viewing compartment, a breathing compartment, a first airway and a second airway. The breathing tube is provided with a single breathing airway. The first airway connects the breathing airway and the viewing compartment. The second airway connects the breathing compartment and the breathing airway. The viewing compartment and the breathing compartment are connected through a first check valve. The breathing compartment and the second airway are connected through a second check valve.
- When the above-mentioned diving mask is in use, outside air can enter the breathing compartment through the breathing airway, the first airway, the viewing compartment and the first check valve. The exhaled air in the breathing compartment can be expelled out of the mask through the second check valve, the second airway, and the breathing airway. Fresh inhaled air carries away fog in the viewing compartment. Exhaled heat is prevented from forming fog on the inner surface of the viewing compartment. This achieves the effect of preventing fog formation. Moreover, the breathing tube has only a single breathing airway, making the structure of the breathing tube simple. The user can breathe more smoothly. The cost is reduced.
- An embodiment of the invention has two second airways. The two airways are connected to opposite sides of the first airway.
- In an embodiment of the invention, the mask includes a mask glass and a mask liner. The mask liner is provided on the mask glass to divide the mask glass into the viewing compartment and the breathing compartment. The first airway is formed on the mask liner. The outer side of the mask glass and the inner side of the mask liner together form the second airway. The first check valve and the second check valve are provided on the mask liner.
- In another embodiment of the invention, the mask liner includes a frame part, a dividing part, and a ventilating part. The dividing part is connected within the frame part to divide the mask glass into the viewing compartment and the breathing compartment. The first check valve is formed on the dividing part. The second check valve is formed at the junction between the dividing part and the frame part. The inner side of the frame part is the inner side of the mask liner. The ventilating part is connected to the rim of the frame part and is formed with the first airway.
- In an embodiment of the invention, the diving mask includes a mask frame connected to the mask glass and the frame part.
- In another embodiment of the invention, the mask frame includes an accommodating tube to accommodate the ventilating part. The breathing tune connects to the accommodating tube. The end of the breathing tube away from the accommodating tube is formed with a ventilating hole connecting to the breathing airway.
- In yet another embodiment of the invention, the breathing tube is connected to the mask in a rotatable way.
- In yet another embodiment of the invention, the diving mask includes a fold-lock structure to fasten the breathing tube to the mask in a rotatable way.
- In yet another embodiment of the invention, the fold-lock structure includes a handle and a hook. The handle and the hook are installed on the mask in a rotatable way and sharing the same rotating axis. When the handle and the hook are in a first position, the hook fastens the breathing tube to the mask. When the handle and the hook are in a second position, the hook and the breathing tube are separate so that the breathing tube can rotate with respect to the mask.
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FIG. 1 is a three-dimensional schematic view of the disclosed diving mask; -
FIG. 2 is a rear view of the disclosed diving mask; -
FIG. 3 is an exploded view of the disclosed diving mask; -
FIG. 4 is a magnified view of part IV inFIG. 3 ; -
FIG. 5 is a planar view of the disclosed diving mask; -
FIG. 6 is a cross-sectional view of the disclosed diving mask; -
FIG. 7 is a magnified view of part VII inFIG. 6 ; -
FIG. 8 is another planar view of the disclosed diving mask; -
FIG. 9 is another cross-sectional view of the disclosed diving mask; and -
FIG. 10 is a magnified view of part X inFIG. 9 . - The aforementioned and other objectives and advantages of this disclosure will become clearer in light of the following detailed description of an illustrative embodiment of this invention described in connection with the drawings.
- In the following description of the invention, it should be understood that the terms such as “first” and “second” are merely used to distinguish different technical features of the same type and cannot be used to imply the importance or the number of such technical features. Therefore, technical features with the qualifiers such as “first” and “second” can both explicitly or implicitly mean that there is one or more of the technical features. Also, the term “multiple” means two or more unless explicitly specified otherwise.
- It should be explained that unless explicitly defined or described, the terms such as “installation”, “connection”, and “communication” should be interpreted in a general sense. For example, a connection can be a fixed connection, a detachable connection, or an integral connection. Such a connection can be a mechanical connection, an electrical connection, or a telecommunication connection. It can be a direct connection or a connection via some intermediate agent. It can be the internal connection between two elements or refers to the interaction between two elements. A person skilled in the art should be able to readily understand such terms in the description of the invention.
- The following description provides several different embodiments or examples to explain different possible structures of the invention. For simplicity, the specification describes the invention by way of specific parts and settings in the examples. Of course, they serve merely as examples and should not be construed to limit the scope of the invention. Besides, the invention repeatedly use same reference numerals or reference alphabets in different examples. Such repetitions are for the purposes of simplification and clarification. They do not directly imply relations among various embodiments and/or settings under discussion. Moreover, the specification provides various examples of specific arts and materials. Nevertheless, a person skilled in the art can readily make appropriate replacements with other arts and/or materials.
- Please refer to
FIGS. 1 and 2 . The invention provides adiving mask 100 comprising amask 101 and abreathing tube 138 with thebreathing tube 138 connecting to themask 101. Themask 101 is formed with aviewing compartment 103, abreathing compartment 105, afirst airway 107, and asecond airway 109. Thebreathing tube 138 is formed with asingle breathing airway 111. The first airway connects thebreathing airway 107 connects thebreathing airway 111 and theviewing compartment 103. Thesecond airway 109 connects thebreathing compartment 105 and thebreathing airway 111. Theviewing compartment 103 and thebreathing compartment 105 are connected via afirst check valve 113, while thebreathing compartment 105 and thesecond airway 109 are connected via asecond check valve 117. - Therefore, when the above-mentioned
diving mask 100 is in use, ambient air can enter thebreathing compartment 105 via thebreathing airway 111, thefirst airway 107, theviewing compartment 103, and thefirst check valve 113. The exhaled air in thebreathing compartment 105 is expelled out of themask 101 via thesecond check valve 117, thesecond airway 109, and thebreathing airway 111. Fresh inhaled air takes away fog formed inside theviewing compartment 103. Warm exhaled air is prevented from touching the inner surface of theviewing compartment 103 to form fog. This achieves the effect of preventing fog formation on themask 101. Moreover, thebreathing tube 138 has only asingle breathing airway 111, making the structure of thebreathing tube 138 simple. The user can breathe more smoothly, while the cost is reduced. - More explicitly, please refer to
FIG. 2 . The thick arrow in the drawing points to the airflow direction of the discloseddiving mask 100. In an embodiment of the invention, thefirst airway 107 can be an intake way formed at the top of themask 101. Thesecond airway 109 can be an exhaust way formed at one side of themask 101. Moreover, one end of thesecond airway 109 connects to the bottom of themask 101, and the other end connects to the top of themask 101. Thus, the warm exhaled air is prevented from touching the inner surface of the viewing compartment to form fog, achieving the goal of preventing fog formation. In an embodiment of the invention, thesecond airway 109 is curved. - The
mask 101 is formed with afirst ventilating hole 132 connecting theviewing compartment 103 and thebreathing compartment 105. Thefirst check valve 113 is provided at thefirst ventilating hole 132 to ensure that the airflow goes only in one way from theviewing compartment 103 to thebreathing compartment 105. - The
mask 101 is also formed with asecond ventilating hole 134 connecting thebreathing compartment 105 and thesecond airway 109. Thesecond check valve 117 is provided at thesecond ventilating hole 134 to ensure that the airflow of exhaled air goes only in one way from thebreathing compartment 105 to thesecond airway 109. - The
breathing tube 138 is formed with asingle breathing airway 111, so that the air entering themask 101 and leaving themask 101 share the same airway. This greatly simplifies the structure and cost of thebreathing tube 138. Breathing also becomes smoother. In one example, thebreathing tube 138 is made by injection molding. More explicitly, a single insert is placed in the mold cavity for forming the breathing tube 128. Then a molding material is injected into the mold cavity. After the molding material is cooled, it is demolded to obtain abreathing tube 138 having asingle breathing airway 111. - When the
diving mask 100 is in use, themask 101 covers the human face. Themask 101 may be under the water surface with thebreathing tube 138 protruding from the water surface, so that the user can inhale the outside air and exhale his own gas. Theviewing compartment 103 enables the user to view the environment outside themask 101. Thebreathing compartment 105 is for breathing. - According to the invention, the
viewing compartment 103 corresponds human eyes while thebreathing compartment 105 corresponds to human nose and mouth (including the chin) portions and the face profile. Thebreathing compartment 105 has a shape that matches human nose and mouth (including the chin). - In an embodiment of the invention, the number of the
first check valves 113 is two. - In an embodiment of the invention, the number of the
second airways 109 is two, and the twosecond airways 109 are to opposite sides of thefirst airway 107. - Therefore, the exhaled air amount is increased, improving the smoothness in breathing when using the
mask 101. - In particular, in the embodiments of the invention, the term “connection” has the meanings of connection and communication. That is, one end of the
second airway 109 is connected to one side of thefirst airway 107, and the inner space of thesecond airway 109 is in fluid communication with the inner space of thefirst airway 107. The air exhaled via thesecond airway 109 may share thefirst airway 107, sending the exhaled air into thebreathing airway 111 to be expelled out of themask 101. - In an embodiment of the invention, the
mask 101 includes amask glass 102 and amask liner 114. Themask liner 114 is disposed on themask glass 102 to divide themask glass 102 into theviewing compartment 103 and thebreathing compartment 105. Thefirst airway 107 is formed on themask liner 114. The outer side of themask glass 102 and the inner side of themask liner 114 together form asecond airway 109. Thefirst check valve 113 and thesecond check valve 117 are provided on themask liner 114. - Hence, the
mask 101 is easier to manufacture, and the cost is lower. The materials of themask glass 102 and themask liner 114 can be selected according to the actual needs. Themask 101 thus has wider applications. - More explicitly, a
first portion 104 of themask glass 102 corresponding to theviewing compartment 103 may be made of a transparent resin material to facilitate viewing of the underwater view. With reference toFIG. 6 , In an embodiment of the invention, thefirst portion 104 of themask glass 102 corresponding to theviewing compartment 103 is substantially flat. Thefirst portion 104 of themask glass 102 corresponding to theviewing compartment 103 may be formed as a planar lens, a myopic lens, or a hyperopic lens. - A
second portion 106 of themask glass 102 corresponding to thebreathing compartment 105 has a shape that matches the nose and mouth (including the chin) of the human being. - The
mask liner 114 is used for tight fitting with the face to ensure air tightness and watertightness. Themask liner 114 may be made of a softer material. Thefirst airway 107 is formed at the top of themask liner 114. - In an embodiment of the invention, the outer side of the
mask glass 102 is formed with anair groove 115. When themask glass 102 is disposed on themask liner 114, theinner surface 119 of themask liner 114 seals theair groove 115, thereby forming thesecond airway 109. - In an embodiment of the invention, the
mask liner 114 includes aframe part 122, a dividingpart 124, and aventilating part 126. The dividingpart 124 is connected to theframe part 122. The dividingpart 124 divides themask glass 102 into theviewing compartment 103 and thebreathing compartment 105. Thefirst check valve 113 is provided on the dividingpart 124, and thesecond check valve 117 is provided at the unction between the dividingpart 124 and theframe part 122. The inner side of theframe part 122 is the inner side of themask liner 114. The ventilatingpart 126 is connected to the rim of theframe part 122 and is formed with thefirst air passage 107. - This shows the structural functions of the
mask liner 114. - Specifically, the
first ventilating hole 132 is formed on the dividingpart 124. Theframe part 122 matches the human facial profile to cover the human face. Thesecond ventilating hole 134 is formed at the junction between the dividingpart 124 and theframe part 122. The number of the secondair ventilating holes 134 is two, and the number of thesecond check valves 117 is also two. - The dividing
part 124 has a shape matching with the human nose bridge. Therefore, the number of the first ventilating holes 132 is preferably two. They are formed on both sides of the highest position of the dividingpart 124. In the embodiment shown inFIG. 3 , each of the first ventilating holes 132 includes a plurality of first small vent holes, and each of the second ventilating holes 134 includes a plurality of second small vent holes. - The rim of the dividing
part 124 can be pressed against the inner surface of themask glass 102 using aliner fixing strip 136. This ensures the airtightness of theviewing compartment 103 and thebreathing compartment 105 at the rim of the dividingpart 124. - In an embodiment of the invention, the
first check valve 113 includes a fixingpost 121 and asealing film 123. The fixingpost 121 is connected to thesealing film 123. The fixingpost 121 may be fixed to the dividingpart 124 by, for example, an interference fit. The sealingfilm 123 attaches tightly against the surface of the dividingpart 124 inside thebreathing compartment 105 to seal thefirst ventilating hole 132. The air pressure in thebreathing compartment 105 is reduced when the user inhales. An air pressure is formed between theviewing compartment 103 and thebreathing compartment 105. The air with a larger air pressure in theviewing compartment 103 flushes the sealingfilm 123 to enter thebreathing compartment 105, thereby reaching a balance in air pressure. Afterwards, the sealingfilm 123 re-seals thefirst ventilating hole 132. - The structure of the
second check valve 117 is the same as that of thefirst check valve 113. The sealing film of thesecond check valve 117 attaches tightly against the inner surface of thesecond airway 109 to seal thesecond ventilating hole 134. The operation principle of thesecond check valve 117 is the same as that of thefirst check valve 113, and is not further described herein. - In an embodiment of the invention, the
diving mask 100 includes amask frame 116 connecting themask glass 102 and theframe part 122. - In this way, the strength of the
diving mask 100 is enhanced, thereby extending the lifetime thereof. - Explicitly, the
mask frame 116 can support theentire diving mask 100. Themask frame 116 is shaped to match the human face so as to have better connections with themask glass 102 and themask liner 114. With reference toFIG. 3 , themask frame 116 has anopening part 118. During the assembly, themask frame 116 is opened from theopening part 118 in order to fit themask glass 102 and themask liner 114 to themask frame 116. After the assembly is completed, theopening part 118 can be closed using amask locking screw 120. Themask glass 102 and themask liner 114 are thus fastened and fixed to themask frame 116. - In an embodiment of the invention, the
mask frame 116 includes anaccommodating tube 146 that accommodates the ventilatingpart 126. Thebreathing tube 138 is connected to theaccommodating tube 146, and the end of thebreathing tube 138 away from accommodatingtube 146 is formed with aventilating hole 174 connecting to thebreathing airway 111. - Accordingly, the
accommodating tube 146 protects the ventilatingpart 126, preventing the ventilatingpart 126 from leaking due to damages. Since theventilating hole 174 is formed at the end of thebreathing tube 138 away from theaccommodating tube 146, the effective air exchange length of thebreathing tube 138 becomes longer, increasing the diving depth of thediving mask 100. - Specifically, when one uses the
diving mask 100 for snorkeling, the end of thebreathing tube 138 provided with theventilating hole 174 can be extended out of the water surface, so that the user can breathe the outside air through theventilating hole 174. - With reference to
FIGS. 3 and 6 , thediving mask 100 includes awater ball valve 168 and agasket 170. Thegasket 170 is provided with afirst air hole 172 and asecond air passage 173, with thefirst air hole 172 and thesecond air hole 173 formed with a space in between. Thewater ball valve 168 is capable of sealing thefirst air hole 172. In this embodiment, both thewater ball valve 168 and thegasket 170 are inside thebreathing tube 138. - When water enters the
breathing tube 138 through theventilating hole 174 of thebreathing tube 138, the water pressure presses thewater ball valve 168 into the first air hole 172 (seeFIGS. 5 and 6 ). Thus, thebreathing airway 111 inside thebreathing tube 138 is sealed to prevent water from entering thediving mask 100 through thefirst air hole 172. - In addition, to ensure the quality of sealing, the
gasket 170 is generally made of a soft material, such as soft rubber. However, when thewater ball valve 168 is pressed against thegasket 170, thewater ball valve 168 easily deforms thegasket 170, thereby affecting the sealing effect. In this embodiment, in order to enhance the support of thegasket 170, thediving mask 100 includes agasket support 178 onto which thegasket 170 is secured. Thegasket 170 is located between thewater ball valve 168 and thegasket support 178. Thegasket support 178 may be secured to asnorkel lid 180 at one end of thebreathing tube 138 by engagement. - The
gasket support 178 is formed with athird air hole 177 and afourth air hole 179, with thethird air hole 177 and thefourth air hole 179 formed with a space in between. Thefirst air hole 172 is in fluid communications with thethird air hole 177, and thesecond air hole 173 is in fluid communications with thefourth air hole 179. - The
gasket support 178 may be made of hard plastic. When thewater ball valve 168 is pressed against thegasket 170, thegasket support 178 acts as a support to enhance the sealing effect. - According to the embodiment, when the
diving mask 100 is normally used, the outside air can enter thebreathing tube 138 through theventilating hole 174 and reach thesnorkel lid 180 through thefirst air hole 172 and thethird air hole 177. The air inside thesnorkel lid 180 turns and enters thebreathing airway 111 through thefourth air hole 179 and thesecond air hole 173. When air is exhaled from thebreathing airway 111, it goes outside of thediving mask 100 in the opposite direction along the above-mentioned path. - In an embodiment of the invention, the
breathing tube 138 is rotatably connected to themask 101. - This facilitates the storage of the
diving mask 100. - Specifically, the
breathing tube 138 may be rotatably connected to themask 101 by a shaft connection. In an embodiment of the invention, thebreathing tube 138 is rotatably connected to theaccommodating tube 146 of themask frame 116. - In another embodiment, the
diving mask 100 includes a fold-lock structure 140 that fastens thebreathing tube 138 onto themask 101 in a rotatable way. - Thus, the
breathing tube 138 can be fixed in the folded position and the open position, increasing the ease of use of thediving mask 100. - More explicitly, as shown in
FIG. 4 , the fold-lock structure 140 includes ahandle 142 and ahook 144. Thehandle 142 and thehook 144 can be coaxially installed on themask 101 in a rotatable way. - When the
handle 142 and thehook 144 are at a first position on themask 101, thehook 144 locks thebreathing tube 138 onto themask 101. When thehandle 142 and thehook 144 are at a second position on themask 101, thehook 144 and thebreathing tube 138 are separate so that thebreathing tube 138 can rotate with respect to themask 101. - More specifically, in an embodiment of the invention, the
handle 142 and thehook 144 are coaxially installed on themask frame 116. When thehandle 142 and thehook 144 are at the first position on themask frame 116, thehook 144 locks thebreathing tube 138 onto themask frame 116. When thehandle 142 and thehook 144 are at the second position on themask frame 116, thehook 144 and thebreathing tube 138 are separate to allow thebreathing tube 138 to rotate with respect to themask frame 116. - The outer surface of the
accommodating tube 146 is provided with a fixingpart 148 which is formed with a first shaft hole 150. With a firstrotary shaft 152 going through first shaft hole 150, thehandle 142 is installed on themask frame 116 in a rotatable way. - The
handle 142 is connected with thehook 144 through asecond shaft 154. Therefore, thehandle 142 and thehook 144 are installed on themask frame 116 in a rotatable way with respect to the secondrotary shaft 154. - The outer surface of the
breathing tube 138 is provided with anengaging part 156 and a firstrotary connecting part 158, which are separately disposed on opposite sides of thebreathing tube 138. When thehandle 142 and thehook 144 are at a first position on themask frame 116, thehook 144 engages theengaging part 156 to lock thebreathing tube 138 onto themask frame 116. - The first
rotary connecting part 158 is provided with a firstrotary hole 160. - The portion corresponding to the
accommodating tube 146 of the firstrotary connecting part 158 is provided with two second rotary connecting parts 162 (only one of the secondrotary connecting parts 162 is shown inFIG. 5 ). The two secondrotary connecting parts 162 are spaced apart to form an accommodating space. Each of the secondrotary connecting parts 162 is formed with a secondrotary hole 164, and the two second rotary holes 164 are aligned. - The first
rotary connecting part 158 is located inside the accommodating space. The firstrotary hole 160 is aligned with the two second rotary holes 164. A thirdrotary shaft 166 is successively fitted into one of the secondrotary hole 164, the firstrotary hole 160 and the other secondrotary hole 164, thereby achieving a rotational connection between thebreathing tube 138 and theaccommodating tube 146. - When the
diving mask 100 is in use, the bottom end of thebreathing tube 138 presses against the end face of the ventilatingpart 126 of themask liner 114. When thehook 144 is engaged with theengaging part 156 of thebreathing tube 138, thehandle 142 is pressed downward toward the direction of theaccommodating tube 146. Themask liner 114 is made of an elastic material. When the pivotal point of the secondrotary shaft 154, the pivotal point of the firstrotary shaft 152, and the stress point of thehook 144 and theengaging part 156 are under the force and have an angle exceeding 180 degrees (seeFIG. 7 ), thebreathing tube 138 is in a locked state. In this case, thehandle 142 and thehook 144 are at the first position on themask frame 116. - When the
diving mark 100 is not in use and one needs to fold thebreathing tube 138, thehandle 142 should be pushed upward. Through the secondrotary shaft 154, thehandle 142 drives thehook 144 to depart from theengaging part 156 of the breathing tube 138 (seeFIGS. 8, 9 and 10 ). In this case, thebreathing tube 138 can rotate with respect to themask frame 116. Thehandle 142 and thehook 144 are at the second position on themask frame 116. One can then readily fold thebreathing tube 138. - The foldable function of the
breathing tube 138 is for the convenience of storage and carrying of thediving mask 100. - While the invention is described in some detail hereinbelow with reference to certain illustrated embodiments, it is to be understood that there is no intent to limit it to those embodiments. On the contrary, the aim is to cover all modifications, alternatives and equivalents falling within the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A diving mask comprising a mask and a breathing tube with the breathing tube connected to the mask, wherein the mask has a viewing compartment, a breathing compartment, a first airway, and a second airway; the breathing tube has a single breathing airway; the first airway connects the breathing airway and the viewing compartment; the second airway connects the breathing compartment and the breathing airway; the viewing compartment connects to the breathing compartment via a first check valve; and the breathing compartment connects to the second airway via a second check valve.
2. The diving mask of claim 1 , wherein the number of the second airways is two, and the two second airways connect to opposite sides of the first airway.
3. The diving mask of claim 1 further comprising a mask glass and a mask liner, wherein the mask liner is provided on the mask glass to divide the mask glass into the viewing compartment and the breathing compartment; the first airway is provided on the mask liner; the outside side of the mask glass and the inner side of the mask liner together form the second airway; and the first check valve and the second check valve are provided on the mask liner.
4. The diving mask of claim 3 , wherein the mask liner includes a frame part, a dividing part, and a ventilating part; the dividing part is connected within the frame part to divide the mask glass into the viewing compartment and the breathing compartment, with the first check valve is provided on the dividing part and the second check valve provided at the junction of the dividing part and the frame part; the inner side of the frame part is the inner side of the mask liner; and the ventilating part is connected to the rim of the frame part and formed with the first airway.
5. The diving mask of claim 4 further comprising a mask frame connecting the mask glass and the frame part.
6. The diving mask of claim 5 , wherein the mask frame includes an accommodating tube that accommodates the ventilating part; and the breathing tube connects to the accommodating tube, with the end portion of the breathing tube away from the accommodating tube being formed with a ventilating hole connecting to the breathing airway.
7. The diving mask of claim 1 , wherein the breathing tube is connected to the mask in a rotatable way.
8. The diving mask of claim 7 further comprising a fold-lock structure to fasten the breathing tube onto the mask in a rotatable way.
9. The diving mask of claim 8 , wherein the fold-lock structure includes a handle and a hook that are installed on the mask in a rotatable way with respect to a same axis; the hook fastens the breathing tube onto the mask when the handle and the hook are in a first position; and the hook departs from the breathing tube so that the breathing tube becomes rotatable with respect to the mask when the handle and the hook are in a second position.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201621063845.6U CN206087242U (en) | 2016-09-03 | 2016-09-03 | Swimming mask |
CN201621063845.6 | 2016-09-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20180065719A1 true US20180065719A1 (en) | 2018-03-08 |
Family
ID=58479280
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/675,323 Abandoned US20180065719A1 (en) | 2016-09-03 | 2017-08-11 | Diving Mask |
Country Status (2)
Country | Link |
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US (1) | US20180065719A1 (en) |
CN (1) | CN206087242U (en) |
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US20180289990A1 (en) * | 2017-04-09 | 2018-10-11 | Charlie Strand | Water Survival Mask |
US20180297676A1 (en) * | 2017-04-15 | 2018-10-18 | Xueling Fang | Respiratory face mask |
US20190071158A1 (en) * | 2017-09-05 | 2019-03-07 | Gyu Won LEE | Snorkeling mask |
CN110065602A (en) * | 2019-01-17 | 2019-07-30 | 东莞市蓝豚运动用品有限公司 | Diving mask |
USD859642S1 (en) * | 2018-05-17 | 2019-09-10 | Shenzhen Xinsenlin Technology Co., Ltd. | Diving mask |
USD860436S1 (en) * | 2017-07-27 | 2019-09-17 | Yan Chen | Diving mask |
USD869639S1 (en) * | 2017-07-24 | 2019-12-10 | Shenzhen CP-Link Electronic Co., Ltd. | Snorkel mask |
USD869641S1 (en) * | 2018-10-15 | 2019-12-10 | Shenzhen Qianhai Huajinkangbei Technology Co., Ltd. | Snorkel mask |
USD871570S1 (en) * | 2018-09-19 | 2019-12-31 | Guangzhou Baitai Sports Products Co., Ltd. | Diving mask |
CN110723265A (en) * | 2018-07-16 | 2020-01-24 | 科越思潜水股份公司 | Face mask for surface floating and diving |
USD873991S1 (en) * | 2018-08-24 | 2020-01-28 | Yan Chen | Diving mask |
IT201800007682A1 (en) * | 2018-07-31 | 2020-01-31 | Jun Yang | DEVICE FOR UNDERWATER BREATHING |
USD875923S1 (en) * | 2018-02-05 | 2020-02-18 | Shantou Hi-tech Zone Feiyu Creative Electronic Technology Co., Ltd. | Snorkel mask |
USD878547S1 (en) * | 2017-09-11 | 2020-03-17 | Yusong Hu | Snorkel mask |
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USD881378S1 (en) * | 2018-03-13 | 2020-04-14 | Mares S.P.A. | Glass for snorkel mask |
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IT201800007682A1 (en) * | 2018-07-31 | 2020-01-31 | Jun Yang | DEVICE FOR UNDERWATER BREATHING |
USD873991S1 (en) * | 2018-08-24 | 2020-01-28 | Yan Chen | Diving mask |
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US11111000B2 (en) * | 2018-09-26 | 2021-09-07 | Luoyang Fluent Sports Product Co., Ltd. | Full-face diving mask |
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CN110065602A (en) * | 2019-01-17 | 2019-07-30 | 东莞市蓝豚运动用品有限公司 | Diving mask |
USD985765S1 (en) * | 2019-03-01 | 2023-05-09 | Huirong Tang | Snorkel mask |
USD909566S1 (en) * | 2019-12-31 | 2021-02-02 | Shenzhen CP-Link Electronic Co., Ltd. | Snorkel mask and diving tank assembly |
USD980412S1 (en) * | 2020-10-22 | 2023-03-07 | Swiss Designs, LLC | Shark snorkel mask |
USD990664S1 (en) * | 2020-11-11 | 2023-06-27 | Dongguan City Ren Tong Swimming & Diving Products Co., Ltd. | Snorkel mask |
USD989947S1 (en) * | 2020-11-24 | 2023-06-20 | Guanhao Huang | Diving mask |
EP4082892A1 (en) * | 2021-04-23 | 2022-11-02 | Cressi-Sub S.p.A. | Device for connecting a breathing tube to a snorkelling mask |
IT202100010400A1 (en) * | 2021-04-23 | 2022-10-23 | Cressi Sub Spa | DEVICE FOR CONNECTING A BREATHING TUBE TO A SNORKELING MASK |
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