Shallow water breathing apparatus
United States Patent 3908647
The breathing apparatus includes a breathing tube fitted at one end with a mouthpiece and at the other with a valve means having an opening that admits air when projecting above the surface of a body of water. The breathing apparatus is used by swimmers near the surface of the water when the swimmer's head is under water. The valve means includes a housing with a compartment therein. The housing has closed sides, a top with a plurality of small openings therethrough and a bottom with a plurality of larger openings therethrough. The openings provide passages to and from the compartment. The housing also incluses a tubular means projecting through the bottom of the housing with an internal distal end spaced a short distance below the top of the compartment and an external projecting portion connected to the breathing apparatus tube.
Application Number:
05/472348
Publication Date:
09/30/1975
Filing Date:
05/22/1974
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Export Citation:
Primary Class:
International Classes:
B63C11/20; B63C11/02; A62B7/00
Field of Search:
128/145A,145R,146.3,146.4,142,14R,205-208,211,139
Primary Examiner:
Gaudet, Richard A.
Assistant Examiner:
Recla, Henry J.
Claims:
1. A breathing tube apparatus means comprising;
2. A breathing tube apparatus means as set forth in claim 1 wherein,
3. A breathing tube apparatus means as set forth in claim 2 wherein,
4. A breathing tube apparatus means, as set forth in claim 3, including;
2. A breathing tube apparatus means as set forth in claim 1 wherein,
3. A breathing tube apparatus means as set forth in claim 2 wherein,
4. A breathing tube apparatus means, as set forth in claim 3, including;
Description:
BACKGROUND OF THE INVENTION
This invention relates to a new and improved valve means for a shallow water breathing apparatus.
Prior art snorkel devices utilized a movable ball as a closure valve. The ball is placed in a cage attached to the top of the snorkel. The ball closes the air tube when the cage moves below the surface of the water. Another type of snorkel device utilizes an upper U-shaped tube to prevent wave water from entering directly into the intake of the snorkel when it is above the surface of the water. The most commonly used snorkel device provides no valve means at the top of the breathing tube to prevent water from entering the tube.
BRIEF DESCRIPTION OF THE INVENTION
The breathing apparatus includes a breathing tube fitted at one end with a mouthpiece and at the other with a valve means having openings that admit air when the valve projects above the surface of a body of water and prevents wave water from entering the apparatus when a wave passes over the valve. The valve means includes a housing with a compartment therein, closed sides, a plurality of small holes or openings in the top, and a plurality of larger holes or openings in the bottom. The housing also includes a tubular means projecting through the bottom of the housing with an internal distal end spaced a short distance below the top of the compartment and an external projecting portion connected to the breathing apparatus tube.
The plurality of small holes or openings in the top of the housing are generally cone shaped with the smaller diameter opening adjacent the external surface of the top of the housing and the larger diameter opening adjacent the internal surface of the top of the housing. The plurality of openings in the bottom of the housing are generally cone shaped having the smaller diameter adjacent the external surface of the bottom of the housing and the larger diameter opening adjacent the internal surface of the bottom of the housing. A plurality of holes ring the tubular means projecting through the bottom of the housing or container. The plurality of small openings in the top of the container ring an air tube shield means centrally located in the top of the container. The air tube shield means projects inwardly into the container compartment having a distal drip edge adjacent the circumference of the air tube shield means.
It is an object of this invention to provide a shallow water breathing apparatus having a generally straight tube portion terminating in a valve means that allows a diver to breathe normally when the upper end of the tube is at the surface of the water and a portion of the valve means, less than half an inch in height, projects above the surface of the water.
It is another object of this invention to provide a valve means having no moving parts that protects the end of the air tube of the breathing apparatus from the wave water entering the tube.
Another object of this invention is to provide tapered hole construction in the valve means to retard the inflow of water into the compartment.
Another object of this invention is to provide a quick draining valve means.
Another object of this invention is to provide a water filtering valve means.
Another object of this invention is to provide a valve means on a shallow water breathing apparatus that will allow air to be drawn into the breathing tube from the bottom or top of said valve means.
An additional object of this invention is to provide smaller holes through the top of the valve means housing to retard water from entering the valve means compartment when a portion of the valve means is above the surface of the water.
In accordance with these and other objects which will be apparent hereinafter, the instant invention will now be described with particular reference to the illustrated embodiments in the accompanying drawing. The illustrated embodiment is not meant to limit the claimed subject matter in this invention.
BRIEF DESCRIPTION OF THE DRAWING
In the drawing:
FIG. 1 is a side view of the shallow water breathing apparatus;
FIG. 2 is a cross sectional side view of the valve means;
FIG. 2a is an enlarged view of the top wall of the valve means;
FIG. 3 is a top view of the valve means; and
FIG. 4 is a bottom view of the valve means.
DESCRIPTION OF THE PREFERRED EMBODIMENT OF THE INVENTION
Referring now to the drawing, FIG. 1, the breathing apparatus 2 includes a breathing tube 4 with a straight portion 6 and a U-shaped portion 8. The resilient U-shaped portion normally holds the mouthpiece 10 in a position parallel to straight portion 6. Fitted at one end of the tube 4 is a mouthpiece 10 and at the other end of the tube 4 is a valve means 12, the valve means 12 has openings that admit air when the valve means projects above the surface of a body of water. The valve means 12 is used by swimmers near the surface of the water with the swimmer's head under water.
The valve means 12, shown in FIG. 2, includes a compartment 14 in housing 16. The housing has closed sides 18 with a plurality of small openings 20 in the top 22 and a plurality of larger openings 24 in the bottom 26 to provide access into and out of the compartment. The housing also includes a tubular means 28 projecting through the bottom 26 of the housing 16 with an internal distal portion 30 spaced a short distance below the top of the housing and an external projecting portion 32 connected to the breathing apparatus tube.
The plurality of small openings 20 in the top 22 of the housing 16 are generally cone shaped with the smaller diameter opening 34 adjacent the external surface of the top of the housing. The plurality of openings 24 in the bottom of the housing are generally cone shaped having the smaller diameter 36 adjacent the external surface of the bottom of the housing. As shown in FIG. 4, the plurality of holes 24 ring the tubular means 28 projecting through the bottom of the housing or container 16. The plurality of small openings 20 in the top of the container, as shown in FIG. 3, ring an air tube shield means 38 centrally located in the top of the container. The air tube shield means projects inwardly into the compartment having a distal drip edge 40 adjacent the circumference of the air tube sheild means 38.
A spacer tube 42 may be placed around the tube member 32 in order to connect the valve means 12 to tube 4. Spacer tube 42 may be removed in order to connect the valve means to a tube having smaller inside diameters.
The opening in the top may have an outside diameter or width of 0.025 inches, plus or minus 0.020 inches and an inside diameter of 0.035 inches, plus or minus 0.010 inches. The openings in the bottom may have an outside diameter or width of 0.050 inches, plus or minus 0.010 inches and an inside diameter of 0.080 inches, plus or minus 0.010 inches. The inside distal end of the tubular means 30 may be spaced a short distance from the top 22. The dimensions set forth in this disclosure are not meant to narrow the claims in this case except where specifically stated.
The instant invention has been shown and described herein in what is considered to be the most practical and preferred embodiment at this time. It is recognized, however, that departures may be made therefrom within the scope of the invention and that obvious modification will occur to a person skilled in the art. Where means are claimed the applicant intends to include all devices that perform the functions set forth.
This invention relates to a new and improved valve means for a shallow water breathing apparatus.
Prior art snorkel devices utilized a movable ball as a closure valve. The ball is placed in a cage attached to the top of the snorkel. The ball closes the air tube when the cage moves below the surface of the water. Another type of snorkel device utilizes an upper U-shaped tube to prevent wave water from entering directly into the intake of the snorkel when it is above the surface of the water. The most commonly used snorkel device provides no valve means at the top of the breathing tube to prevent water from entering the tube.
BRIEF DESCRIPTION OF THE INVENTION
The breathing apparatus includes a breathing tube fitted at one end with a mouthpiece and at the other with a valve means having openings that admit air when the valve projects above the surface of a body of water and prevents wave water from entering the apparatus when a wave passes over the valve. The valve means includes a housing with a compartment therein, closed sides, a plurality of small holes or openings in the top, and a plurality of larger holes or openings in the bottom. The housing also includes a tubular means projecting through the bottom of the housing with an internal distal end spaced a short distance below the top of the compartment and an external projecting portion connected to the breathing apparatus tube.
The plurality of small holes or openings in the top of the housing are generally cone shaped with the smaller diameter opening adjacent the external surface of the top of the housing and the larger diameter opening adjacent the internal surface of the top of the housing. The plurality of openings in the bottom of the housing are generally cone shaped having the smaller diameter adjacent the external surface of the bottom of the housing and the larger diameter opening adjacent the internal surface of the bottom of the housing. A plurality of holes ring the tubular means projecting through the bottom of the housing or container. The plurality of small openings in the top of the container ring an air tube shield means centrally located in the top of the container. The air tube shield means projects inwardly into the container compartment having a distal drip edge adjacent the circumference of the air tube shield means.
It is an object of this invention to provide a shallow water breathing apparatus having a generally straight tube portion terminating in a valve means that allows a diver to breathe normally when the upper end of the tube is at the surface of the water and a portion of the valve means, less than half an inch in height, projects above the surface of the water.
It is another object of this invention to provide a valve means having no moving parts that protects the end of the air tube of the breathing apparatus from the wave water entering the tube.
Another object of this invention is to provide tapered hole construction in the valve means to retard the inflow of water into the compartment.
Another object of this invention is to provide a quick draining valve means.
Another object of this invention is to provide a water filtering valve means.
Another object of this invention is to provide a valve means on a shallow water breathing apparatus that will allow air to be drawn into the breathing tube from the bottom or top of said valve means.
An additional object of this invention is to provide smaller holes through the top of the valve means housing to retard water from entering the valve means compartment when a portion of the valve means is above the surface of the water.
In accordance with these and other objects which will be apparent hereinafter, the instant invention will now be described with particular reference to the illustrated embodiments in the accompanying drawing. The illustrated embodiment is not meant to limit the claimed subject matter in this invention.
BRIEF DESCRIPTION OF THE DRAWING
In the drawing:
FIG. 1 is a side view of the shallow water breathing apparatus;
FIG. 2 is a cross sectional side view of the valve means;
FIG. 2a is an enlarged view of the top wall of the valve means;
FIG. 3 is a top view of the valve means; and
FIG. 4 is a bottom view of the valve means.
DESCRIPTION OF THE PREFERRED EMBODIMENT OF THE INVENTION
Referring now to the drawing, FIG. 1, the breathing apparatus 2 includes a breathing tube 4 with a straight portion 6 and a U-shaped portion 8. The resilient U-shaped portion normally holds the mouthpiece 10 in a position parallel to straight portion 6. Fitted at one end of the tube 4 is a mouthpiece 10 and at the other end of the tube 4 is a valve means 12, the valve means 12 has openings that admit air when the valve means projects above the surface of a body of water. The valve means 12 is used by swimmers near the surface of the water with the swimmer's head under water.
The valve means 12, shown in FIG. 2, includes a compartment 14 in housing 16. The housing has closed sides 18 with a plurality of small openings 20 in the top 22 and a plurality of larger openings 24 in the bottom 26 to provide access into and out of the compartment. The housing also includes a tubular means 28 projecting through the bottom 26 of the housing 16 with an internal distal portion 30 spaced a short distance below the top of the housing and an external projecting portion 32 connected to the breathing apparatus tube.
The plurality of small openings 20 in the top 22 of the housing 16 are generally cone shaped with the smaller diameter opening 34 adjacent the external surface of the top of the housing. The plurality of openings 24 in the bottom of the housing are generally cone shaped having the smaller diameter 36 adjacent the external surface of the bottom of the housing. As shown in FIG. 4, the plurality of holes 24 ring the tubular means 28 projecting through the bottom of the housing or container 16. The plurality of small openings 20 in the top of the container, as shown in FIG. 3, ring an air tube shield means 38 centrally located in the top of the container. The air tube shield means projects inwardly into the compartment having a distal drip edge 40 adjacent the circumference of the air tube sheild means 38.
A spacer tube 42 may be placed around the tube member 32 in order to connect the valve means 12 to tube 4. Spacer tube 42 may be removed in order to connect the valve means to a tube having smaller inside diameters.
The opening in the top may have an outside diameter or width of 0.025 inches, plus or minus 0.020 inches and an inside diameter of 0.035 inches, plus or minus 0.010 inches. The openings in the bottom may have an outside diameter or width of 0.050 inches, plus or minus 0.010 inches and an inside diameter of 0.080 inches, plus or minus 0.010 inches. The inside distal end of the tubular means 30 may be spaced a short distance from the top 22. The dimensions set forth in this disclosure are not meant to narrow the claims in this case except where specifically stated.
The instant invention has been shown and described herein in what is considered to be the most practical and preferred embodiment at this time. It is recognized, however, that departures may be made therefrom within the scope of the invention and that obvious modification will occur to a person skilled in the art. Where means are claimed the applicant intends to include all devices that perform the functions set forth.