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An apparatus for facilitation selective rotation of a sportboard binding relative to a sportboard interposed between the binding and the sportboard. An electro-magnetically actuated locking mechanism controls the rotation of a retaining ring assembly relative to a bottom capture plate and a top plat

An apparatus for facilitation selective rotation of a sportboard binding relative to a sportboard interposed between the binding and the sportboard. An electro-magnetically actuated locking mechanism controls the rotation of a retaining ring assembly relative to a bottom capture plate and a top plate assembly. The bottom capture plate is attached to the sportboard. The retaining ring assembly is attached to the binding by teeth on an outer perimeter thereof. One or more pairs of diametrically opposed ferromagnetic inserts placed in the retaining ring assembly define specific angular positions at which the binding may be locked. An external power source (e.g., a battery) is connected to the electro-magnetically actuated locking mechanism via a switch adapted to be operated by a rider of the sportboard such that the rider can selectively control the locking and unlocking of the mechanism to allow rotation of the binding as desired.

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1. An apparatus for facilitating selective rotation of a binding with respect to a surface of a sportboard, comprising: a bottom capture plate having fastening holes therethrough and arranged in a pattern, said bottom capture plate adapted for attachment to a sportboard;a top plate assembly having f

1. An apparatus for facilitating selective rotation of a binding with respect to a surface of a sportboard, comprising: a bottom capture plate having fastening holes therethrough and arranged in a pattern, said bottom capture plate adapted for attachment to a sportboard;a top plate assembly having fastening holes therethrough arranged in an identical pattern to that of said pattern in said bottom capture plate, said top plate assembly disposed above said bottom capture plate and fixedly connected thereto, said top plate assembly being aligned with said bottom capture plate such that said fastening hole pattern therein is aligned with said identical fastening hole pattern in said bottom capture plate;a retaining ring assembly sandwiched between said bottom capture plate and said top plate assembly and separated from each thereof by ball bearings allowing rotation of said retaining ring assembly relative to said bottom capture plate and said top plate assembly;a locking mechanism for selectively locking said retaining ring assembly relative to said bottom capture plate and said top plate assembly, thereby preventing rotation of said retaining ring assembly relative to said bottom capture plate and said top plate assembly when said locking mechanism is engaged;wherein said locking mechanism comprises an electrically actuated locking mechanism;whereinsaid electrically actuated locking mechanism compromises:an electromagnet disposed in said top plate assembly; andat least one pair of diametrically opposed ferromagnetic inserts selectively disposed around a perimeter of an interior region of said retaining ring assembly. 2. The apparatus for facilitating selective rotation of a binding with respect to a surface of a sportboard as recited in claim 1, wherein each of said at least one pair of diametrically opposed ferromagnetic inserts defines a particular angular position at which said retaining ring assembly may be locked relative to said top plate assembly and said bottom capture plate. 3. The apparatus for facilitating selective rotation of a binding with respect to a surface of a sportboard as recited in claim 1, further comprising: an electrical switch disposed externally to said apparatus for facilitating selective rotation of a binding and electrically connected to said electromagnet and to a source of electrical power, said electrical switch operable by a rider of a sportboard to which said apparatus for facilitating selective rotation of a binding is attached. 4. The apparatus for facilitating selective rotation of a binding with respect to a surface of a sportboard as recited in claim 3, wherein when said electromagnet is energized, said retaining ring assembly is locked to said top plate assembly and said bottom capture plate and wherein when said electromagnet is deenergized, said retaining ring assembly is free to rotate relative to said top plate assembly and said bottom capture plate. 5. The apparatus for facilitating selective rotation of a binding with respect to a surface of a sportboard as recited in claim 2, wherein said electromagnet comprises a ferromagnetic core having a winding therearound, said winding having a first end terminating in a first conductive contact disposed adjacent a first end of said electromagnet and a second end terminating in a second conductive contact adjacent an opposite end of said electromagnet. 6. The apparatus for facilitating selective rotation of a binding with respect to a surface of a sportboard as recited in claim 5 wherein said ferromagnetic core comprises an iron core. 7. The apparatus for facilitating selective rotation of a binding with respect to a surface of a sportboard as recited in claim 5, further comprising: an electrically conductive ring operably attached to said retaining ring assembly and disposed to be in wiping contact with said first conductive contact and said second conductive contact, said electrically conductive ring having a first end connected to a first connection of an electrical power source and a second end connected to a second connection of an electrical power source, said electrically conductive ring having an electrically non-conducting region at approximately a midpoint thereof, said electrically conductive ring and said first and second conductive contacts functioning as a brush assembly to supply electrical power to said winding of said electromagnet as said top plate assembly and said bottom capture plate move relative to said retaining ring assembly. 8. A method of allowing selective rotation of a binding with respect to a surface of a sportboard, the steps comprising: providing an apparatus comprising a bottom capture plate, a top plate assembly and a retaining ring assembly disposed therebetween and isolated from each of said bottom capture plate and said top plate assembly by a set of interposed ball bearings, said apparatus comprising an electromagnetically actuated locking assembly;attaching said apparatus to an upper surface of a sportboard using fasteners passing through mounting holes provided in both said top plate assembly and said bottom capture plate, a lower surface of said bottom capture plate contacting said upper surface of said sportboard;attaching a conventional sportboard binding to said apparatus, by engaging teeth in said conventional sportboard binding with compatible teeth disposed on an outer perimeter of said retaining ring assembly; andenergizing said electromagnetically actuated locking assembly thereby locking said binding in a particular angular relationship to said sportboard. 9. The method of allowing selective rotation of a binding with respect to a surface of a sportboard as recited in claim 8, the steps further comprising: deenergizing said electromagnetically actuated locking assembly thereby allowing rotation of said retaining ring assembly and said conventional sportboard binding fixedly attached thereto. 10. The method of allowing selective rotation of a binding with respect to a surface of a sportboard as recited in claim 8, wherein said providing an apparatus step comprises the sub-step: providing at least one pair of diametrically opposed ferromagnetic inserts in a perimeter of said retaining ring assembly, each of said at least one pair of diametrically opposed ferromagnetic inserts defining an angular position whereat said retaining ring assembly may be locked relative to said bottom capture plate and said top plate assembly. 11. The method of allowing selective rotation of a binding with respect to a surface of a sportboard as recited in claim 10, wherein said providing an apparatus step further comprises the sub-step: providing an electrical power source connected to said electromagnetically actuated locking assembly and an intervening electrical switch disposed for operation by a rider of said sportboard whereby said rider may selectively energize and deenergize said electromagnetically actuated locking assembly thereby controlling the locking and unlocking of said conventional sportboard binding and thereby controlling the rotation of said conventional sportboard binding relative to said sportboard to which it is attached.