Floating dock section

Information

  • Patent Grant
  • 6179525
  • Patent Number
    6,179,525
  • Date Filed
    Tuesday, May 11, 1999
    26 years ago
  • Date Issued
    Tuesday, January 30, 2001
    24 years ago
Abstract
A floating dock section that is secure, economical and durable and can be coupled together with a similar type section by a connecting member that fits into a socket of the dock section. Each connecting member has flanges that fit into receiving sockets of two adjacent dock sections to form a dock of a preferred configuration so that the dock sections can be arranged in a plethora of configurations. Modular pieces for end posts and other accessories can be added. The bottom surface of the dock section includes a plurality of rectangularly shaped closely spaced apart troughs that are in a parallel alignment with one another.
Description




BACKGROUND OF THE INVENTION




1. Field of the Invention




The present invention relates to floating docks, and, in particular, to durable polyethylene dock sections that are formed to provide a rigid, strengthened top surface that maintains its shape and provides a superior support and feel for persons walking on the section.




2. Description of the Prior Art




Floating marine docks formed of sections are commonly used as a means of providing access to and mooring for boats or as swimming or fishing platforms. Modular or sectional docks are frequently employed for constructing docks of various sizes and configurations. In the past, Styrofoam has commonly been used as the basis for docking modules. These modules, however, are unstable, cumbersome, hazardous to the environment, and are, therefore, limited in their applications. This creates a need for a buoyant modular dock made almost entirely of molded polyethylene or other environmentally stable materials.




In addition, the apparatus connecting modular docks together must be secure enough and strong enough to withstand high stress. Some prior art docks have secured floating dock sections together with joists, locking pins, mounting plates, springs and other fasteners, but each suffers from its own disadvantages. U.S. Pat. No. 5,281,055 utilizes rubber connectors that fit into sockets positioned at the top and bottom edges of the dock sections. To maintain flotation of the '055 patent dock sections if they are damaged so that they become filled with water, the sections are formed with a plurality of frustoconically shaped pylons that trap air for assisting in supporting the sections in the water.




The lateral and vertical movement that results from the action of wind and waves against floating docks puts considerable stress on the connecting apparatus which must be highly durable. Furthermore, the top surface of the dock sections must be supported to present a firm feel to a user. In addition, the amount of flexing of the top surface should be minimized to reduce the potential of stress cracking. A need exists, therefore, for a modular floating dock with a high strength connecting apparatus that is durable enough to be used in a variety of settings.




SUMMARY OF THE INVENTION




The present invention provides a durable modular floating dock section that can be utilized to form a variety of dock configurations for boating, swimming, fishing, and various other functions. The individual dock sections include a plurality of closely spaced apart parallel aligned troughs that are arranged in a transverse relationship to the length of the sections. The sections can be connected together by using a connecting member to form a variety of design configurations. The connecting member is comprised of two flanges that each fit into a complementary receiving socket on two adjacent dock sections. The connecting member and dock sections can be further secured together by a bolt and nut. Other modular pieces, such as a pole bracket, can be connected to the dock sections in a similar fashion.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a perspective top view of a preferred embodiment of the components of a floating dock of the present invention formed of two dock sections and three connecting members that are used to secure the dock sections together.





FIG. 2

is a perspective view of a preferred embodiment of one of the connecting members shown in FIG.


1


.





FIG. 3

is a side view of the connecting member of FIG.


4


.





FIG. 4

is a top view of the connecting member of FIG.


4


.





FIG. 5

is a perspective bottom view of one of the dock sections of FIG.


1


.





FIG. 6

is a cross sectional view of one of the dock sections of

FIG. 1

taken along the line


6





6


of FIG.


1


.





FIG. 7

is a perspective view of a pole bracket that can be attached to a dock section.





FIG. 8

is a top view of the embodiment of FIG.


7


.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT




The present invention involves a floating dock


10


, as shown in

FIG. 1

, comprised of at least two dock sections


11


of the present invention. Preferably, the sections


11


are connected together by three connecting members


12


to provide a wobble free connection therebetween. However, it should be recognized by those skilled in the art that a single connecting member


12


could be used where conditions allow. Each dock section


11


is, in the preferred embodiment, a one piece molded body and may be of any shape, although a square or rectangular shape is preferred. The dimensions of each dock section


11


can vary depending upon its intended location and design. In the preferred embodiment, each section


11


is generally rectangular in shape, forty-five inches long, thirty inches wide, ten inches high and weighs approximately fifty pounds.




The dock sections


11


can be constructed of any suitable material, but preferably they are made of molded polyethylene, because it possesses strength and durability, is resistant to gas, oil and other contaminants and is also stable on the water. Each dock section


11


is generally hollow. The wall thickness of the dock sections


11


can vary, but a range of one-eighth inch in protected areas to three-eighth inch in exposed areas like outside corners, and with a wall thickness on the top (walking) surface of approximately one-fourth inch, is preferred.




Spaced about the perimeter of the dock sections


11


are a plurality of receiving sockets


13


. It is preferred that the sockets


13


are uniformly spaced along the sides and ends of each dock section


11


so that two sections can be connected together in a variety of ways. The dock sections


11


can have any appropriate number of sockets


13


, although in the preferred embodiment, three such sockets are located along the long side of the dock section


11


and two sockets are located along the short side.




Referring now to

FIGS. 2

,


3


and


4


the connecting members


12


are used to attach the dock sections


11


together and are complimentary in shape to the sockets


13


. Each connecting member


12


has a body


15


with at least two flanges


16


, and each flange


16


is received in and interlocks with a receiving socket


13


. Each flange


16


has an inwardly tapered post section


17


adjacent to which is a top recess


18


. In the preferred embodiment, the body


15


further includes two side members


19


that are somewhat similar in shape to the flanges


16


and extend from opposite sides thereof. Each side member


19


is notched to form a recess


20


, and the flanges


16


have lower ledge portions


24


that are spaced from the side members


19


to form bottom recesses


25


.




In the preferred embodiment, the top of each post section


17


contains a threaded bore


26


molded therein. Securing means, such as a bolt (not shown), can then be positioned through holes


28


in the top of the dock section


10


and secured in the bores


26


. This serves to semi-permanently secure the dock section


10


and its associated connecting member


12


together.




As shown best in

FIG. 5

, the sockets


13


each comprise a central, vertically oriented, tapered recessed portion


30


that is complementary in shape to one-half of a connecting member


12


, as described below so that they fit together in an interlocking relationship. At the top of each socket


13


is a top overhang


31


intended to fit into the top recess


18


of one of the connecting members


12


. In the preferred embodiment, the sockets


13


further comprise two bottom overhangs


32


that interlock with the bottom recesses


25


of one of the connecting members


12


, and two side overhangs


33


that interlock with the recesses


20


in the side members


19


to thereby provide an efficient, effective and durable means for interlocking the dock sections


10


together.




To increase the structural strength of the dock sections


10


, a number of parallel aligned troughs


35


and


36


(

FIG. 5

) of a generally rectangular shape extend from the bottom upward toward the top of each dock section


10


. These troughs


35


and


36


each define a cavity in the dock section


10


, so that air is captured within the trough


35


when the dock section


10


is positioned in the water. The sides of the troughs


35


and


36


also provide structural support against downward or lateral pressure applied to the dock sections


11


and minimize flexing of the top surface of the sections


11


. In the preferred embodiment, the troughs


35


and


36


comprise a total of five and extend along the bottom of the dock section


10


.




There are three of the troughs


35


, which are shorter than the troughs


36


and extend between the receiving sockets


13


on their respective sides. There are two of the long troughs


36


that are unencumbered by the receiving sockets


13


so as to extend from side to side. In the preferred embodiment, the short troughs


35


are approximately nineteen inches long, four inches wide and nine and one-half inches deep, and the long troughs


36


are approximately twenty-five inches long, four inches wide and nine and one-half inches deep. Accordingly, a majority of the bottom of the dock sections


11


is formed from the troughs


35


and


36


. As shown by

FIGS. 5 and 6

, the ceilings of the troughs


35


and


36


are formed with transverse ribs


37


to improve the flow of plastic during molding and productability of the sections


11


. The top of each dock section


11


is formed with a plurality of parallel aligned, spaced apart elongated indentations


38


(see

FIG. 1

) that span each section


11


, which indentations are located in an alignment between each of the troughs


35


and


36


to further minimize the amount of flexing of the dock section top surface and thereby reduce the potential of stress cracking.




To stabilize the dock


10


, it is highly preferable to utilize one or more stabilizing poles (not shown) to brace the floating dock. Each stabilizing pole can be secured to the dock by the use of a pole bracket


40


as shown in

FIGS. 7 and 8

. Each of the members


40


is comprised of a flange section


41


and a pole section


42


that contains a pole hole


43


. The flange section


41


is similar in shape to the flanges


16


. Thus, each pole bracket


40


can be secured in one of the receiving sockets


13


. Other types of attachments and accessories, such as gangways, ladders, boat moorings, and floating dry docks for watercraft (all not shown) can also be attached to the dock by the use of members that interlock with the receiving sockets


13


.




In application, the dock sections


10


are connected together with the use of connecting members


12


into a desired configuration. Any dock section


11


can easily be secured to the shore through the use of arms, cables, gang planks or other means. The present invention thus provides a complete floating dock that does not require additional elements for use, such as boat bumpers or wood planking, or additional parts for assembly. The polyethylene dock sections


11


are durable, stable and have a long life. The shape of the flanges


16


and receiving sockets


13


ensure that the dock sections


11


will remain securely attached by the connecting members


12


so that the dock sections


11


will not separate during use. The connecting members


12


also result in a tight fit and a very small gap between the dock sections


11


, and this increases the ease and safety of walking on the dock


10


.




While a preferred embodiment of the present invention has been described, it should be understood that various changes, adaptations and modifications may be made therein without departing from the spirit of the invention and the scope of the appended claims.



Claims
  • 1. A hollow floating dock section that forms part of a floating dock and comprises:a) a top surface; b) a pair of end walls; c) a pair of sidewalls; d) a bottom surface that is formed with a plurality of recessed troughs that are in parallel alignment with one another and extend upwardly toward said top surface to terminate in a ceiling that is formed with traverse spaced apart ribs and is closely adjacent to said top surface; and e) wherein said top surface is formed with a plurality of parallel aligned, spaced apart elongated indentations that extend between said end walls aligned between the troughs of said bottom surface.
  • 2. A dock section as recited in claim 1, wherein said troughs alternately include long troughs and short troughs.
  • 3. A dock section as recited in claim 1, wherein said section is rectangularly shaped and is adapted to be fastened to another similarly shaped section to form a floating dock.
  • 4. A dock section as recited in claim 1, wherein said section has at least five troughs.
  • 5. A dock section as recited in claim 3, wherein said troughs have ends that are adjacent to said end walls.
  • 6. A dock section as recited in claim 5, wherein said end walls of said section have spaced apart receiving sockets, with the receiving sockets of one end wall in alignment with the receiving sockets of the other sidewall to form an aligned pair of sockets.
  • 7. A dock section as recited in claim 6, wherein one of said troughs is in alignment with one of said aligned pair of sockets.
US Referenced Citations (14)
Number Name Date Kind
3179076 Sheffield Apr 1965
3777689 Olsen et al. Dec 1973
4559891 Shorter, Jr. Dec 1985
4655156 Svirklys et al. Apr 1987
4660495 Thompson Apr 1987
4733626 Svirklys et al. Mar 1988
4799445 Meriwether Jan 1989
4928617 Meriwether May 1990
4974538 Meriwether Dec 1990
5199370 Berquist Apr 1993
5213447 Srock May 1993
5404825 McElwain Apr 1995
5460114 McMillan Oct 1995
5915325 Gerber et al. Jun 1999