For a more complete understanding of the present invention, reference is made to the following detailed description of various exemplary embodiments considered in conjunction with the accompanying drawings, in which:
a is a top perspective view showing a pontoon boat constructed in accordance with a second exemplary embodiment of the present invention and with the flotation elements of the pontoon boat having been broken away; and
b is a bottom perspective view showing the pontoon boat of
Referring to
Referring to
The ribs 28a-p, 30a-g, 32a-n co-act with one another such that the support frame 12 is substantially rigid. Each one of the ribs 28a-p, 30a-g, 32a-n are preferably welded and/or fitted with each other one of the ribs 28a-p, 30a-g, 32a-n adjacent thereto. The ribs 28a-p, 30a-g, 32a-n of the support frame 12 provide resistance to bending and/or breaking and are each preferably formed from piping having an outer diameter of one and nine-tenths inches (1.9″). The piping is preferably a combination of schedule forty aluminum, schedule eighty polyvinyl chloride, and schedule forty polyvinyl chloride. It is contemplated that the support frame 12 can include any suitable number of ribs and that the ribs can be secured to one another by any suitable means. It is also contemplated that the support frame 12 can be monolithically formed.
Referring to
Each one of the flotation elements 14a-b are inflated in use and provide buoyancy to the pontoon boat 10. The flotation elements 14a-b are preferably light weight, durable, and easy to store, such as those flotation elements referred to in the art as being “expedition style”. It is contemplated that the flotation elements 14a-b can be formed from hollow aluminum, solid styrofoam (polystyrene), hollow fiberglass, and/or any other suitable material known in the art.
Each one of the adjustable straps 40 may be provided with a ratchet mechanism (not shown) to facilitate easy attachment and detachment of the flotation elements 14a-b, thereby facilitating easy transportation of the pontoon boat 10 in an unassembled form. In the exemplary embodiment, the pontoon boat 10 is sized and dimensioned such that the width thereof is reduced when the flotation elements 14a-b are detached from the support frame 12. In this regard, the pontoon boat 10 can be wider than government regulations allow for highway transport (e.g., towing of the pontoon boat 10), because the width can be reduced for highway transport by having the flotation elements 14a-b detached. It is contemplated that the flotation elements 14a-b can be secured to the support frame 12 by any suitable means known in the art, e.g., bolts, welding, etc. It is contemplated that, in some embodiments of the invention, the flotation elements 14a-b can be deflated.
Continuing with reference to
The floor 18 of the pontoon boat 10 is secured to the lower ribs 30a-g by bolts and/or any suitable means known in the art. The floor 18 is preferably formed from a single, monolithically formed panel. The floor 18 is preferably formed from UV stabilized high-density polyethylene (HDPE) sheeting that preferably has a thickness between one-eighth of an inch and one quarter of an inch. The floor 18 is generally rectangular, except that a trapezoidal edge, referenced herein as a lower trapezoidal edge 50, is provided that at least partially defines the bay area 34. Longitudinally-extending sidewalls 35a-b are secured to the floor 18 and are substantially perpendicular thereto.
The lower deck 20 of the pontoon boat 10 is positioned between the upper deck 16 and the floor 18. The lower deck 20 is preferably formed from UV stabilized high-density polyethylene (HDPE) sheeting that is preferably one-half inch thick and surface treated to achieve slip-resistance. The lower deck 20 is preferably a single, monolithically formed panel. The lower deck 20 preferably has the shape of a quadrilateral, e.g., a rectangle, and is in substantial alignment with the opening 42 formed in the upper deck 16, such that a passenger can stand in the opening 42 on the lower deck 20. The lower deck 20 provides a reinforced surface upon which a load (e.g., cargo, a passenger, etc.) may be supported at a position lower than the upper deck 16. A plurality of compartment walls 51a-b are provided that extend perpendicularly from the lower deck 20 to the upper deck 16 and that are in substantial alignment with those edges of the upper deck 16 defining the opening 42 formed therein.
Continuing with reference to
The front panel 24 of the pontoon boat 10 is secured to the intermediate ribs 32m-n and preferably has a trapezoidal shape. The front panel 24 is preferably formed from UV stabilized high-density polyethylene (HDPE) sheeting and can be formed from any suitable material known in the art. The front panel 24 co-acts with the upper deck 16, the floor 18, the sidewalls 35a-b, and the compartment walls 51a-b to define a plurality of chambers 54a-b therebetween. In preferred embodiments of the invention, one or more of the compartment walls 51a-b are hingedly secured to the lower deck 20, thereby permitting user access to one or more of the chambers 54a-b.
The diaphragm 26 of the pontoon boat 10 is preferably formed from a thin, resistant and waterproof material, such as polyvinyl chloride (PVC). The diaphragm 26 includes a continuous surface 56 defining a fluid receiving area 58 and further includes a plurality of mounting flaps 60a-c extending from the continuous surface 56. An interference fit may be formed by the ribs 30e-g and the floor 18, and each one of the mounting flaps 60a-c may be positioned between the floor 18 and a corresponding one of the ribs 30e-g to secure the continuous surface 56 to the support frame 12. The mounting flaps 60a-c are preferably secured about the lower trapezoidal edge 50, such that water beneath the floor 18 does not flow directly into the fluid receiving area 58. It is contemplated that the continuous surface 56 can be secured to the support frame 12 and/or the floor 18 in any suitable manner known in the art.
The diaphragm 26, the front panel 24, and/or the floor 18 prevent the rearward flow of cavitated water from entering that area in which the motive element of the personal watercraft 36 operates, e.g., that area rearward of the fluid receiving area 58, while permitting the forward flow of water into the fluid receiving area 58. Accordingly, there are preferably no openings formed between the diaphragm 26 and the floor 18.
Referring to
As shown in
A winch assembly, referenced herein as a lower winch assembly 70, is secured to a bow eye 69 at the underside of the personal watercraft 36. In this regard, the winch assembly 70 secures the personal watercraft 36 against the bumper assemblies 64a-b (and one or more sets of padding 71 discussed below) when the personal watercraft 36 is received in the bay area 34. A passenger can access the lower winch assembly 70 by rotating the compartment wall 51a open and reaching through the chamber 54a. As shown in
Referring to
With reference to
To secure the personal watercraft 36 to the pontoon boat 10, the personal watercraft 36 is directed toward the bay area 34 and the operator of the pontoon boat 10 passes under the support arch 22 with the personal watercraft 36. After a user of the pontoon boat 10 (e.g., a passenger, etc.) folds down the compartment wall 51a, the user reaches into the chamber 54a to operate the lower winch assembly 70, thereby securing the pontoon boat 10 to the underside of the personal watercraft 36. A user secures the clips 74 of the upper winch assembly 72 to the lip 62 (e.g., gunwale) of the personal watercraft 26 (and/or the diaphragm 26).
In operation, the personal watercraft 36 propels and directs the pontoon boat 10. The diaphragm 26 is at least partially submerged so as to permit the forward flow of water into the fluid receiving area 58 from a position behind the pontoon boat 10. Water rearward of the diaphragm can be operated upon by a motive element of the personal watercraft 36 to provide propulsion to the pontoon boat 10. The front panel 24, the floor 18, and the diaphragm 26 cooperate to inhibit the flow of cavitated water rearward of the diaphragm such that the motive element of the personal watercraft has enhanced efficiencies. The multilevel decking preferably rides above the water line so as to inhibit the rearward flow of water from a position ahead of the pontoon boat 10 into the fluid receiving area 58. The front panel 24 inhibits the rearward flow of cavitated water from a position ahead of the pontoon boat 10 into the fluid receiving area 58. In this regard, although the water frontward of the pontoon boat 10 is typically cavitated during motion of the pontoon boat 10, the front panel 24 will inhibit the flow of such cavitated water through the chambers 54a-b and into the fluid receiving area 58. Although cavitated water could otherwise cause inefficiencies in the motive element of the personal watercraft 36, the front panel 24, the floor 18, and the diaphragm 26 cooperate to inhibit the flow of cavitated water proximal the motive element of the personal watercraft 36, thereby providing enhanced propulsion efficiencies.
The exemplary embodiment of the pontoon boat 10 has numerous other advantages. For example, the pontoon boat 10 is difficult to capsize, swamp, and/or sink and has a relatively shallow draft in the water. When used in combination with the personal watercraft 36, enough power is provided to the pontoon boat 10 for controlled travel through considerable water currents and/or speeds (e.g., due to reduced cavitation problems). Because the pontoon boat 10, when assembled, can be wider than government regulations for highway transport, a wider “footprint” is provided, thereby facilitating a low center of gravity. Moreover, the multilevel decking and support frame 12 is self-bailing, thereby making the pontoon boat 10 substantially resistant to holding water and/or sinking. The pontoon boat 10 is relatively lightweight, thereby permitting enhanced load capacity.
It is contemplated that the pontoon boat 10 can be provided with many variations and modifications without departing from the spirit and the scope of the invention. For example, referring to
Referring to
The pontoon boat 10 can be provided with storage containers 82 secured to the upper deck 16 and safety railings 84 secured to the support frame 12. In this regard, additional holes, similar to the passages 48, are formed in the upper deck 16, and the railings 84 extend through the additional holes to the support frame 12. In some embodiments, one or more of the safety railings 84 are removably attached to the support frame 12 and/or one or more storage containers 82 are removably attached to the upper deck 16. Also, as shown in
Additional variations and modifications of the invention are contemplated. For example, inflatable elements (not shown) can be secured to an underside of the floor 18 and/or the diaphragm 26 to add additional lift thereto. As another example, the pontoon boat 10 can be provided with oars (not shown) to facilitate propulsion of the pontoon boat 10 in the absence of the personal watercraft 36. As yet another example, safety panels, screens and/or sheeting (not shown) can be provided to extend from the top of the safety railings 84 to the upper deck 16, thereby preventing items from rolling off of the upper deck 16. It is also contemplated that the pontoon boat 10 and components thereof can be provided with any suitable dimensions.
A spray guard can be provided extending from the bow of the upper deck 16 and from the flotation element 14a to the flotation element 14b. It is contemplated that the spray guard can preferably be formed from a transparent plastic sheeting. It is further contemplated that the spray guard can reduce residual splashing onto the multilevel decking and funnel additional air under the multilevel decking between the flotation elements 14a-b (e.g., to reduce drag). Also, in the event of a head-on collision, it is contemplated that the spray guard can inhibit any harm caused to the persons and property on the upper deck 16.
Referring to
Referring to
Continuing with reference to
It is contemplated that the polystyrene foam layer floor 118 is formed of a hard, closed rigid polystyrene foam shell and may be about six to ten inches thick (or more or less thick). It is contemplated that added load capactity of the pontoon boat 110 is possible, because the floor 118, which is buoyant, is adapted to extend below the water line in heavier conditions. The buoyancy of the floor 118 is contemplated to enhance the safety of the pontoon boat 110, by providing flotation to the pontoon boat 110, e.g., in addition to primary flotation provided by the flotation elements 114a-b (not shown).
A foam sheet 92 is adhered and/or otherwise secured to the floor 118 opposite the support frame 112. The foam sheet 92 includes a first section 94 thereof defining a continuous surface 156 proximal the bay area 134. The foam sheet 92 is preferably a flexible and resiliently deformable closed cell foam sheeting about one inch thick and may be provided with a laminated protective film coating. In some embodiments of the present invention, such as that shown in
The foam sheet 92 preferably extends the full length of the pontoon boat 110. In such arrangement, an elevation E1 between the first section 94 and the water line is about the same as an elevation E2 between the second section 96 and the water line. An elevation E3 between the third section 98 and the water line is multiform by virtue of the angle of the front panel 24, such that the elevation E3 is increasingly greater than the elevation E2 as the third section 98 extends from the second section 96. When the personal watercraft is received in the open bay area 134 and the first section 94 wraps about the personal watercraft 36, the first section 94 might become slightly lowered to or below the water line, such that the elevation E1 is just less than the elevation E2.
It is contemplated that such arrangement, where the elevation E1 of the first section 92 is substantially similar to the elevation E2 of the second section 94, may provide reduced cavitation and water drag, thereby reducing any bottlenecking of the rearward flow of water as it reaches the motive element of the personal watercraft. Also, it is contemplated that the foam sheet 92 provides the pontoon boat 110 with additional protection from impact and abrasion.
It will be understood that the embodiments of the present invention described herein are merely exemplary and that a person skilled in the art may make many variations and modifications without departing from the spirit and the scope of the invention. All such variations and modifications, including those discussed above, are intended to be included within the scope of the invention as defined in the appended claims.
The present application claims the benefit under 35 U.S.C. § 119(e) of U.S. Provisional Application No. 60/802,894 filed May 23, 2006, which is hereby incorporated by reference in its entirety for all purposes.
Number | Date | Country | |
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60802894 | May 2006 | US |