Plastic article or earthenware shaping or treating: apparatus – Preform severing means – Serially arranged with preform reshaping means
Patent
1992-07-23
1994-04-19
Chiesa, Richard L.
Plastic article or earthenware shaping or treating: apparatus
Preform severing means
Serially arranged with preform reshaping means
83886, 264284, 264293, 425385, 493 60, B29C 5904
Patent
active
053040562
ABSTRACT:
An apparatus for making a substantially rigid corrugated plastic material having at least one sealed edge sealed with a seal line pattern. The seal line pattern has a series of generally parallel grooves, wherein preferably groove depth increases from the outside to the middle of the pattern. The apparatus includes a frame, a conveyor system for moving the plastic material along a linear path, a feeder situated at an upstream end of the conveyor system and located to position the plastic material on the conveyor system, a heater situated downstream of the feeding means located to heat the area to be embossed with the seal line pattern to a temperature sufficient to form the seal line pattern, and an embosser having a knurled flat roller and a cooperating embossing roller having a series of ridges suitable for embossing the seal pattern, and a trimmer for trimming any excess material from the seal line.
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Chiesa Richard L.
Park James M.
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