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US 7,063,769 B2Granted
Construction of gliding board and method of production
AssigneeMetropole Development Limited
InventorKwong Kee Cheung
Life of this patent
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Abstract
A gilding board for sliding on water, snow and land, is constructed from polyethylene foam material, in three-ply or more layers of constant density or different densities as a multi-layer board core. The three-ply board core enhances the crash-worthiness from water surfing, snow or land gliding, with a provision of better comfort and a function of high security for users by having smooth surfaces of the board on both sides.
Claims6
A method of producing a gliding board, said method comprising:
- (A) agglutinating a first layer of a three-ply closed-cell, high density polyethylene board core with a layer of plastic polymer graphic film by a compound thermoplastic substance under the temperature of 180 to 200 degrees;
- (B) applying a two-layer thermoplastic substance to a third layer of the three-ply board core with a thickness of a top layer of the two-layer thermoplastic substance is in the range of 2 mils to 5 mils whilst a bottom layer of the two-layer thermoplastic substance is in a range of 0.1 mil to 0.5 mil;
- (C) applying heat to adhere a second layer and the third layer of the three-ply polyethylene board core;
- (D) applying heat to adhere the second and the third layer of the three-ply polyethylene board core to the first layer of the three-ply board core to form a semi-product of the gliding board;
- (E) applying heat and pressure to extend the plastic polymer graphic film from the first layer of the three-ply polyethylene board core to attach to a bottom plastic polymer protective board secured to the third layer of the three-ply board core to form the gliding board.
2 more elements
Dependencies are inferred from the claim text.