Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1998-12-18
2000-09-19
Bowers, Charles
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
264249, 427375, B29C 6500
Patent
active
061207195
ABSTRACT:
A method and apparatus are presented for encapsulating an article comprising, for example, a substantially circular turntable (12) having first and second opposed major surfaces (16 & 18), each major surface sharing an outer peripheral sidewall (20). First and second thermoplastic pre-forms (28 & 30) are fitted to sandwich the article and are sealed to encapsulate by rotating a thermoplastic band (32) onto and around the exposed seam (48) while applying pressure (70) and heat (74) to obtain a fused bonded reliable encapsulating joint (72). The method and apparatus presented are particularly well suited for encapsulating metal platens, holders, and internal parts of process equipment used in the semiconductor manufacturing industry to avoid contamination from the encapsulated metal. The method could be used to encapsulate any article having a rotatable outer seam of adjacent polymeric pre-forms residing on a relatively narrow peripheral sidewall surface of the article, which is substantially parallel to the axis of rotation.
REFERENCES:
patent: 2487816 (1949-11-01), Lindsey
patent: 3052163 (1962-09-01), Schubert
patent: 3962016 (1976-06-01), Alfter et al.
patent: 4300581 (1981-11-01), Thompson
patent: 4366014 (1982-12-01), Pollard
patent: 4407691 (1983-10-01), Ishii et al.
patent: 4579617 (1986-04-01), Oberg et al.
patent: 4586624 (1986-05-01), Shaw
patent: 4929293 (1990-05-01), Osgar
patent: 4957570 (1990-09-01), Jenkins et al.
patent: 5298713 (1994-03-01), Marlin
patent: 5328541 (1994-07-01), Usui et al.
patent: 5609713 (1997-03-01), Kime et al.
Baxter Michael R.
Gothman Vernon H.
Rozelle Darryl E.
Bowers Charles
FSI International Inc.
Pert Evan
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