Thermoformer for forming and heat bonding a thermoplastic...

Details Thermoformer for forming and heat bonding a thermoplastic... Thermoformer for forming and heat bonding a thermoplastic...

2006-08-15

2006-08-15

Yao, Sam Chuan (Department: 1733)

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With separate heating means for work

C156S500000, C156S538000, C156S581000, C425S388000, C425S504000

Reexamination Certificate

active

07089985

ABSTRACT:
A thermoforming apparatus for forming sheets of sheet plastic onto a substrate in which a retractable substrate heater is able to be positioned over a substrate loaded into the press and energized while a plastic sheet is being heated in an oven included in the thermoformer apparatus. The plastic sheets are cut from a strip pulled from a roll of sheet material, the roll supported for side to side movement and driven by a servomotor responsive to error signals generated by a strip edge sensor to compensate for wandering of a strip edge to thereby insure accurate location of plastic sheets cut from the unwound strip.

REFERENCES:
patent: 4039643 (1977-08-01), Dean et al.
patent: 5980231 (1999-11-01), Arends et al.
patent: 6076582 (2000-06-01), Thary
patent: 6187252 (2001-02-01), Rhoades et al.

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