Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With means applying wave energy or electrical energy...
Patent
1996-11-13
1998-11-24
Aftergut, Jeff H.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With means applying wave energy or electrical energy...
1563798, 1563806, 219765, 219769, B29C 6500, B29C 6504
Patent
active
058401512
ABSTRACT:
An apparatus for forming coiled tubular assemblies is provided. The apparatus includes a pair of dies formed from a radio frequency (RF) conducting material. The dies each have contoured leading surfaces with these surfaces having grooves with lands between adjacent grooves. The lands of the dies cooperate to form web forming chambers when the pair of dies are moved together in their operative position. In the operative position, the tubes are captured in the aligned grooves with portions of the tubes being squeezed or extruded into the web forming chamber. Application of RF energy to the dies causes the tube portions in the chambers to plasticize and form webs between the coils of the tubes with a predetermined configuration substantially the same as that of the web forming chambers. Both radially coiled and axially coiled tube assemblies are contemplated by the invention. In addition, an easy-to-separate or peel tubular assembly is formed with the above apparatus.
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Aftergut Jeff H.
Baxter International Inc.
Beem Richard
Borecki Thomas S.
Mattenson Charles R.
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