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
1998-01-30
2000-12-26
Ortiz, Angela
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
264268, B29C 3910, B29C 4514
Patent
active
061654027
ABSTRACT:
A method for making a stopper. The method includes the step of providing a first tool defining a first tool cavity and a second tool defining a second molding cavity. A first plug member having an upper surface and a lower surface also is provided, the upper surface of the first plug member having a concave portion. The first plug member is faced in the first cavity such that at least a portion of the lower surface of the first plug member is in contact with the first cavity. The second tool defines a hole therethrough such that the hold provides fluid contact between the second tool cavity and a point exterior to the second tool. A polymeric material is transferred through the hole defined by the second tool into the second cavity defined by the second tool and into the concave portion of the upper surface of the first plug member such that the polymeric material forms a second plug member having an upper surface and a lower surface, the upper surface of the second plug member being defined by the molding surface defined by the second tool. The first plug member and the second plug member define a stopper. The stopper is then removed form the first and second tools.
REFERENCES:
patent: 2698272 (1954-12-01), Clapp et al.
patent: 2777411 (1957-01-01), Geisler
patent: 3490099 (1970-01-01), Smith et al.
patent: 3505141 (1970-04-01), Sorensen et al.
patent: 3597298 (1971-08-01), Stengle, Jr.
patent: 4233006 (1980-11-01), Panas
patent: 4323158 (1982-04-01), Wheaton, III et al.
patent: 4389271 (1983-06-01), Shandy et al.
patent: 4398989 (1983-08-01), Allen et al.
patent: 4436500 (1984-03-01), Allen et al.
patent: 4441621 (1984-04-01), Matukura et al.
patent: 4512475 (1985-04-01), Federighi
patent: 4517243 (1985-05-01), Sinha et al.
patent: 4554125 (1985-11-01), Knapp
patent: 4846031 (1989-07-01), Voytilla et al.
patent: 4915243 (1990-04-01), Tatsumi et al.
patent: 4994224 (1991-02-01), Itoh et al.
patent: 5037595 (1991-08-01), Kornelis
patent: 5078941 (1992-01-01), Tatsumi et al.
patent: 5120148 (1992-06-01), Waters et al.
patent: 5230149 (1993-07-01), Martin
patent: 5234723 (1993-08-01), Babacz
patent: 5308649 (1994-05-01), Babacz
patent: 5374314 (1994-12-01), Babacz
patent: 5378510 (1995-01-01), Thomas et al.
patent: 5484566 (1996-01-01), Gabbard
patent: 5531580 (1996-07-01), Bonino et al.
patent: 5897823 (1999-04-01), Davis et al.
Patent Abstracts of Japan vol. 016, No. 180 (C-0935), Apr. 30, 1992 & JP 04 022362 A (Nissho Corp).
Gabbard Mark E.
Gabbard Timothy J.
Voytilla Joseph M.
Abbott Laboratories
Ortiz Angela
Woodworth Brian R.
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