Patent Application
20070267067
With reference to
The pipe is hollow and has a top opening and a bottom opening. The top opening and the bottom opening are formed on the pipe and communicate with each other. The mouthpiece is mounted at bottom opening of the pipe and allows a user to hold in the mouth and breath through the pipe.
The body (10) has a top, a floating cylinder chamber (11) and an air chamber (12). The floating cylinder chamber (11) is hollow, formed inside the body (10) and has a top opening, a bottom, an inner wall, a tracking extension (14), two optional tracking slots (16) and water-discharging holes (15). The top opening is formed on the floating chamber (11). The tracking extension (14) is formed at the bottom of the floating chamber (11) and extends upward. The two tracking slots (16) are formed at the inner wall of the floating chamber (11) and correspond to each other. The water-discharging holes (15) are separately formed through the inner wall of the floating chamber (11) and correspond to each other to allow water quickly to be discharged from the floating chamber (11).
The air chamber (12) is hollow, is formed inside the body (10) adjacent to the floating cylinder chamber (11) and has a top opening, a bottom, an air passage (17) and an optional tube (18). The top opening is formed on the air chamber (12). The air passage (17) is formed through the bottom of the air chamber (12) and communicates with the top opening of the air chamber (12). The tube (18) is mounted is mounted at the air passage (17) and has a through hole. The though hole is formed through the tube (18) and communicates with the air chamber (12). The tube (18) may be formed together with the air chamber (12) of the body (10) or separated from the air chamber (12) of the body (10). The tube (18) is mounted to the top opening of pipe of the snorkel so that the body (10) is able to combine to valve with the pipe of the snorkel together.
The floating cylinder (20) is slidely mounted inside the floating cylinder chamber (11) of the body (10) and has a top, a bottom, a sidewall, a channel (21) and two optional protrusions (22). The channel (21) is formed at bottom of the floating cylinder (20) and receives the tracking extension (14) of the floating cylinder chamber (11) to guide the floating cylinder (20) only moving along a certain direction when the floating cylinder (20) floating. The two protrusions (22) are formed on the sidewall of the floating cylinder (20), correspond to each other and slidably engage respectively with the two tracking slots (16) of the floating chamber (11).
The seat (30) is annular, is mounted at the top opening of the floating cylinder chamber (11) and has a bottom and a cushion (31). With further reference to
The top cover (40) is mounted on the top of the body (10).
Accordingly, a guiding effect is provided to the floating cylinder (20) by the racking extension (14), the tracking slots (16), the and channel (21) and two protrusions (22), so that the floating cylinder (20) can move along a certain direction even when the snorkel is not perpendicular to the water surface. Furthermore, the cushion (31) has a bellows shape so that the cushion (31) can tightly abut against the cushion (31) to completely seal the top opening of the floating cylinder chamber (11) and to prevent a user from getting chock.
Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description together with details of the structure and function of the invention, the disclosure is illustrative only. Changes may be made in detail especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
