Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1992-12-18
1995-03-28
Ball, Michael W.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156292, 156196, 1563096, 156285, 428180, 108 511, 108901, 264545, B32B 330, B29C 5102, B65D 1932
Patent
active
054013470
ABSTRACT:
A twin sheet plastic panel structure, a twin sheet plastic pallet utilizing the panel structure, and a methodology for forming the panel structure and pallet. The panel structure is formed by thermoforming an upper plastic sheet to include rows of hollow bosses extending downwardly from the main body of the sheet; thermoforming a lower plastic sheet to include rows of hollow bosses extending upwardly from the main body portion of the sheet; and bringing the sheets together while still in a heated flowable state to position the bosses of the upper sheet in intermeshing relation to the bosses of the lower sheet so that the annular side wall portions of the upper and lower bosses fuse together, the bottom walls of the upper sheet bosses are fused to the upper surface of the main body portion of the lower sheet, and the upper walls of the lower sheet bosses are fused to the lower surface of the main body portion of the upper sheet to form a series of parallel rigid column structures between the sheets. In the case of the pallet, the fused together upper and lower sheets coact to define a platform structure for the pallet and the upper and lower sheets further coact to define a plurality of legs extending downwardly from the platform structure to position the platform structure in spaced relation to a support surface.
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Ball Michael W.
Lorin Francis J.
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