Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Composite article making
Patent
1992-01-16
1994-06-28
Kuhns, Allan R.
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Composite article making
264 466, 264 468, 264278, 264511, B29C 6722
Patent
active
053244621
ABSTRACT:
A process for the manufacture of moulded material-covered products is provided wherein material is placed over a mould and held by clamping means proximate the periphery of the mould and thereafter material is drawn into the mould to conform to the shape of the interior surface of the mould prior to the injection of foamable thermoplastics material into the mould to form the product. The process includes the step of disposing a stop at predetermined positions on the material so that when the material is drawn into the mould, the stop precludes further material from ingressing into the mould and any further movement of material into mould is by the stretching of material. A mould for moulding the moulded product is also provided which includes a bottom and side wall formation surrounding the bottom proximate the periphery of the bottom, the bottom carrying on its surface a design to be carried by the moulded product, the bottom being separate from the side wall formation sot hat the side wall formation can be spaced from the bottom and be lowered to engage the bottom proximate the periphery of the bottom. The bottom may be one piece or may include a base supporting a tongue movable to a raised position for receiving a bag or sack of material for the purposes of injecting foamable thermoplastics material onto the bag or sack.
REFERENCES:
patent: 3576930 (1971-04-01), Watters
patent: 3878277 (1975-04-01), Velte
patent: 3943215 (1976-03-01), Grune et al.
patent: 4176154 (1979-11-01), Miki et al.
patent: 4207278 (1980-06-01), Cowen
patent: 4552522 (1985-11-01), Van Melle
patent: 4715916 (1987-12-01), Shimada
patent: 4740260 (1988-04-01), Selbert
patent: 4793793 (1988-12-01), Swenson et al.
patent: 4808100 (1989-02-01), Onnenberg et al.
patent: 4847034 (1989-07-01), Araki et al.
patent: 4853995 (1989-08-01), Bethell
patent: 4860415 (1989-08-01), Witzke
patent: 4938912 (1990-07-01), Pelzer
patent: 5000805 (1991-03-01), Lowe
patent: 5058955 (1991-10-01), Sugiura et al.
patent: 5069837 (1991-12-01), Sember, III et al.
patent: 5114639 (1992-05-01), Kurz et al.
Atoma International Inc.
Kuhns Allan R.
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