FIELD: underwater equipment.
SUBSTANCE: invention relates to underwater equipment, namely to underwater masks used for swimming under water. Underwater mask comprises housing (12) equipped with window (20) and soft seal (22), respiratory tube (18) located in extension of upper part (14) of housing (12). Housing (12) comprises exhaled air removal device (100), which connects lower chamber (52) with air channel (90) of respiratory tube (18) via fluid. Exhaled air removal device (100) comprises at least a first check valve (140) configured to transmit a flow of exhaled air from lower chamber (52) to air passage (90) of respiratory tube (18) during the exhalation phase of the user, wherein during the user inhalation phase, the first check valve (140) is closed.
EFFECT: simple design of the mask and ease of use.
15 cl, 13 dwg
Title | Year | Author | Number |
---|---|---|---|
SCUBA DIVING MASK WITH PRESSURE BALANCER | 2020 |
|
RU2775795C1 |
EXHALATION VALVE AND UNDERWATER BREATHING DEVICE COMPRISING IT | 2006 |
|
RU2373978C2 |
BREATHING TUBE FOR SWIMMER | 2002 |
|
RU2231473C1 |
ELONGATED BREATHING TUBE FOR SWIMMER | 2004 |
|
RU2288862C2 |
DEVICE FOR PRODUCTION OF HYPOXIC, HYPEROXIC AND NORMOXIC RESPIRATORY MIXTURES AND INTERVAL COMPLEX NORMOBARIC TRAINING | 2016 |
|
RU2650205C2 |
DIVING HELMET | 2022 |
|
RU2782046C1 |
KM-36 PILOT OXYGEN MASK | 2011 |
|
RU2452538C1 |
SHUT-OFF VALVE (VERSIONS) | 2006 |
|
RU2362934C1 |
OUTFIT FOR DETERMINATION OF INDIVIDUAL MASS OF ZERO BUOYANCY BALLAST | 2004 |
|
RU2281221C2 |
BREATHING TRAINER | 2023 |
|
RU2806613C1 |
Authors
Dates
2020-06-23—Published
2018-03-30—Filed