Paddlecraft for divers

Abstract

A paddlecraft with a recess in its deck for a hookah diving compressor is disclosed where a user can paddle to a dive site and dive there without removing the compressor from the recess. An interchangeable insert for the recess supports different shapes and sizes of compressors. For a water-cooled compressor, the recess admits water from beneath the paddlecraft, or part of the compressor protrudes through the recess into the water beneath. A lid for the recess with an attachable tube feeds air to the compressor. An airline connection point is integrated into the paddlecraft, readily allowing connection and removal of an airline, or two or more airlines via an adaptor. The paddlecraft can also house an air reserve tank, allowing the user to dive without removing it. If the paddlecraft is an SUP, part of the SUP deck preferably functions as an air reserve tank.

Claims

1. A paddlecraft, comprising a paddlecraft deck with a recess in the paddlecraft deck, wherein the recess houses a compressor, wherein a diver can paddle the paddlecraft to a dive site and perform a dive at the dive site without removing the compressor from the recess, wherein air breathed by the diver during the dive has been compressed by the compressor then fed to the diver via an airline, wherein a lowest part of the compressor protrudes through a recess bottom such that the lowest part of the compressor is submerged in a water body below the paddlecraft, such that the water body cools the compressor while the compressor is in use.

Description

BRIEF DESCRIPTION OF THE FIGURES

(1) FIG. 1 is a cross-sectional view of one embodiment of the invention, where the hookah diving compressor and air reserve tank are housed in separate recesses in the paddlecraft deck.

(2) FIG. 2 is cross-sectional detail view showing one preferred embodiment of an airline connection point integrated into the prow of the paddlecraft.

(3) FIG. 3 is a cross-sectional detail view showing one preferred embodiment of the recess used to house the compressor.

(4) FIG. 4 is cross-sectional detail view showing one preferred embodiment of a recess that allows the compressor to protrude through its base into the water below.

(5) FIG. 5 is perspective view showing one preferred embodiment of the invention where a hollow portion of the deck of an SUP serves as an air reserve tank.

DETAILED DESCRIPTION OF THE INVENTION

(6) Many aspects of the invention can be better understood with references made to the drawings below. The components in the drawings are not necessarily drawn to scale. Instead, emphasis is placed upon clearly illustrating the components of the present invention. Moreover, like reference numerals designate corresponding parts through the several views in the drawings. Before explaining at least one embodiment of the invention, it is to be understood that the embodiments of the invention are not limited in their application to the details of construction and to the arrangement of the components set forth in the following description or illustrated in the drawings. The embodiments of the invention are capable of being practiced and carried out in various ways. In addition, the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting.

(7) FIG. 1 shows a preferred embodiment of the invention, with the paddlecraft 1 housing the compressor 2 and the air reserve tank 3 in separate recesses (4 and 5 respectively). A first connecting tube 6 within the paddlecraft connects them, so that the compressor 2 when turned on feeds air to the air reserve tank 3. A second connecting tube 8 connects the air reserve tank 3 to an airline connection point 9, preferably integrated into the prow of the paddlecraft 1. An airline 10 is then connected at one end to the airline connection point 9, and at the other end preferably by a clip to the user's weight belt or to a harness on the user's back, and then to a regulator 11 through which the user breathes.

(8) With the airline connection point 9 preferably integrated into the prow of the paddlecraft 1, when the user dives, the paddlecraft is thus towed behind the user in a manner that provides least resistance to forward motion. More generally, towing the paddlecraft has the advantage the user can't become separated from it, as when scuba diving from a paddlecraft, with the risk of losing the paddlecraft altogether, or a long swim against a current to regain it after surfacing. It also means the paddlecraft doesn't need to be anchored, thus lowering the risk of damaging coral and fragile marine ecosystems.

(9) With reference to FIG. 2, the airline connection point 9 is preferably the male side of a standard air compressor quick release valve, typically made from metal and/or high-grade plastic. This airline connection point is preferably secured firmly (for example using glue or a screw mounting) in the prow area of the paddlecraft, allowing the user to easily attach and detach an airline 10, one that includes the female side of the same connector.

(10) Still with reference to FIG. 2, the user could optionally attach an airline adaptor 12 to the airline connection point 9, allowing two or more airlines 10 to be attached, via the adaptor, to the airline connection point 9. While FIG. 2 shows a standard T-adaptor, allowing two airlines to be attached, it would be possible to use a single adaptor that allowed attachment of three or more airlines, or join two or more T-adaptors with the same aim.

(11) Use of one or more adaptors in this manner allows the invention to support two or more users diving simultaneously. For example, the paddlecraft could have two seats, with both users paddling, and both users diving together once a dive site was reached. Alternatively, two or more users could paddle together to a dive site in separate paddlecraft, with one of these paddlecraft (the present invention) then able to support two or more users from the group diving simultaneously.

(12) A further contemplated embodiment would be for the compressor (2 in FIG. 1) to link via a connecting tube within the paddlecraft 1 directly to the airline connection point 9, i.e. compressed air from the compressor 2 would then reach the airline connection point 9 without first passing through an air reserve tank. An air reserve tank could then optionally be included in the airline 10, such that it floated on the water while the user was diving.

(13) With reference to FIG. 3, a standard compressor quick release valve 7 is also preferably incorporated into the first connecting tube 6, connecting the compressor 2 and the air reserve tank 3. This allows the compressor 2 to be easily placed into the compressor recess 4 prior to a dive outing, and removed from the recess after the outing. The user may naturally want to do this because a) the compressor is relatively heavy, making it harder to lift the paddlecraft in and out of the water with the compressor in the recess; b) the compressor is relatively expensive, meaning the user may not wish to leave this unattended in a moored paddlecraft; and c) some compressors are sealed units that include rechargeable batteries (and hence need to be removed from the paddlecraft recess for recharging).

(14) In contrast, the air reserve tank 3 is relatively cheap and light, made typically of plastic or ceramic, and would more naturally be left by the user in the air reserve tank recess 5 after a dive outing.

(15) Still with reference to FIG. 3, in a preferred embodiment of the invention, the compressor recess 4 has a compressor recess lid 14, preferably a plastic hinged lid, the kind often seen covering a central hatch in the deck of a sit on top kayak. This lid preferably has a small hole, large enough to insert an air tube, namely the compressor air inlet tube 15. This compressor air inlet tube 15 is preferably made of hard plastic, and rises vertically from the hole in the compressor recess lid 14, preferably linked to the compressor 2 at its base using a softer plastic tube of slightly wider diameter. Air thus enters from the top end of the compressor air inlet tube 14, safely above waves and spray, to feed the compressor when in use, even if the paddlecraft itself were to become waterlogged.

(16) The compressor air inlet tube 15 can optionally serve as a mast for a diver down flag 16, being a flag commonly used by divers to let others know that their paddlecraft is unattended while they are diving beneath it. The air inlet tube and flag can easily be removed after a dive, and stored preferably in the compressor recess 4.

(17) Still with reference to FIG. 3, the compressor recess 4 accepts a compressor recess insert 13 preferably made from foam or rubber, molded to encircle the base of a given shape and size of compressor, and keep it stable within the recess. This allows a user to choose a compressor with preferred specifications, for example a more powerful compressor for deeper diving, and avoids the chosen compressor moving around loosely in the recess (with risk the compressor ceases to work and/or the paddlecraft becomes less stable).

(18) Hookah diving compressors are commonly designed to have their bases submerged in water, to cool them while in use. FIG. 3 shows such a compressor, with the base of the compressor recess 4 preferably admitting water from below the paddlecraft via one or more small holes. Water entering the recess is thus confined to the recess itself, with the compressor recess insert 13 preventing it from sloshing to rise above the compressor 2. Importantly, in the case of a sit-on-top kayak, this water in the recess may not enter the primary shell of the kayak, and therefore will not compromise its buoyancy.

(19) Water entering the compressor recess 4 will therefore rise naturally to a level equal in height to the level of the water surrounding the paddlecraft 1. The base of compressor thus sits in a small well of water within the compressor recess, with that water able to circulate through the one or more small holes with the larger body or water beneath the paddlecraft, thus cooling the compressor.

(20) It is contemplated that a number of hole designs could be used, including forward-angled holes that would scoop in more water to increase cooling, or backward-angled holes that would naturally lose water from the recess. It is further contemplated that the size and location of the holes could be varied depending on the type of circumstances the paddlecraft was designed to operate in.

(21) With this embodiment, if the compressor recess was being used to house a compressor that did not require water-cooling, or if the paddlecraft was being used without a compressor altogether, the hole(s) in the compressor recess floor could be temporarily blocked to make the recess watertight, for example using rubber or plastic plug(s), or by simply covering the hole(s) on the underneath of the paddlecraft with a waterproof tape. Of course, if the compressor recess was only ever to be used to house a compressor that did not require water-cooling, there would be no need for holes in the recess floor to admit water.

(22) FIG. 4 shows a further embodiment of the invention where a water-cooled compressor 2 has its base protruding through the compressor recess 4 into the water beneath. This would particularly suit a paddlecraft such as an SUP where the deck has less thickness. The compressor could optionally also protrude out the top of the deck, with no recess lid, as shown in FIG. 4, with a flange on the compressor, and/or a compressor recess insert used to prevent it falling through the recess altogether.

(23) With such an embodimentone that also allows the compressor to protrude out the top of the recessremovable straps across the top of the compressor would be used to preferably keep the compressor more stably in the recess, so that even if the paddlecraft were to capsize, the compressor would remain secured.

(24) Whether the compressor sits in a recess (as in FIG. 3) or protrudes beneath it (as in FIG. 4), inclusion of the compressor lowers the combined center of gravity of the paddlecraft plus its user, thus aiding its stability.

(25) FIG. 5 shows a further preferred embodiment of the invention where the paddlecraft 1 is an SUP, and part of the SUP's deckpreferably the prowis hollow and engineered to withstand higher pressure, so it can function as an air reserve tank 3 for the user while diving. The air reserve tank 3 is preferably engineered to include two airline connection points 9, so that a connecting tube 6 can link the compressor to the first airline connection point, and the diver's airline can be connected to the second airline connection point (shown in FIG. 5 at the front tip of the SUP deck).

(26) While FIG. 5 shows the connecting tube 6 above the SUP deck, it could instead be situated below the deck, linking to an airline connection point on the underside of the air reserve tank 3. Note in this respect that some popular hookah compressors have a tube expelling compressed air on their undersides, and in the case of an SUP, it would be most natural for the compressor's underside to protrude below the deck (because the deck of an SUP is thin).

(27) While in FIG. 5 the air reserve tank 3 is the whole of the tip of the SUP deck, it could instead be engineered as an insert, preferably of the same or similar thickness to the remainder of the SUP deck, to fit into a hole of the same size in the deck and preferably secured by straps in that hole.

(28) While FIG. 5 shows the compressor 2 sitting in a recess in the main portion of the deck (the portion that is not the air reserve tank 3), the air reserve tank 3 could instead include a recess for the compressor.

(29) The preferred embodiments illustrated in all the drawings assume the compressor 2 is a unit consisting of the compressor itself, and an integrated battery power supply, but not including an air reserve tank. The power supply however could optionally be separate from the compressor, stored in the same compressor recess 4, or a different recess, while the air reserve tank could optionally be integrated into the compressor unit.

(30) All of the material in this patent document is subject to copyright protection under the copyright laws of the United States and other countries. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in official governmental records but, otherwise, all other copyright rights whatsoever are reserved.

REFERENCE NUMERALS USED

(31) 1. Paddlecraft 2. Compressor (a hookah diving compressor) 3. Air reserve tank 4. Compressor recess 5. Air reserve tank recess 6. First Connecting tube (connecting compressor to air reserve tank) 7. Connecting tube quick release valve 8. Second Connecting tube (connecting air reserve tank to airline connection point) 9. Airline connection point 10. Airline 11. Diving regulator 12. Airline adaptor 13. Compressor recess insert 14. Compressor recess lid 15. Compressor air inlet tube 16. Diver down flag