Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting – Controlling heat transfer with molding material
Patent
1987-04-03
1989-01-31
Anderson, Philip
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
Controlling heat transfer with molding material
34191, 264 51, 264101, 425 4R, 425144, C08J 922, B29C 6538, B29C 6722
Patent
active
048013617
ABSTRACT:
A method of molding expandable thermoplastic polymer beads in a mold to form articles of foamed material comprising: pulsing steam through at least one of the cavities to contact and expand the beads in the cavity for a finite period of time and drawing the steam amongst the beads by providing reduced pressure to at least one of the cavities for the same period of time; and pulsing mist through the expanded beads by providing mist to at least one of the cavities and drawing the mist through the expanded beads by providing reduced pressure to at least one of the cavities for the finite period of time of predetermined duration to form articles of foamed material.
REFERENCES:
patent: Re27243 (1971-12-01), Sare et al.
patent: 2188371 (1940-01-01), Merriam
patent: 2196183 (1940-04-01), Baer
patent: 2220880 (1940-11-01), Baer
patent: 2419109 (1947-04-01), Berger et al.
patent: 2516118 (1950-07-01), Heineman
patent: 2832353 (1958-04-01), Doyle
patent: 3015851 (1962-01-01), Wiles
patent: 3042973 (1962-07-01), Brockhues et al.
patent: 3054146 (1962-09-01), Griffin
patent: 3081488 (1963-03-01), Caasavina et al.
patent: 3086248 (1963-04-01), Culp
patent: 3161912 (1964-12-01), Wiles et al.
patent: 3193876 (1965-07-01), Thompson
patent: 3225126 (1965-12-01), Bridges et al.
patent: 3233016 (1966-02-01), Kracht
patent: 3233334 (1966-02-01), Hamilton
patent: 3243485 (1966-03-01), Griffen
patent: 3262458 (1966-07-01), Lindstrom
patent: 3278658 (1966-10-01), Immel
patent: 3312760 (1967-04-01), Berner
patent: 3345992 (1967-10-01), Lederman et al.
patent: 3410931 (1968-11-01), Johnson
patent: 3419648 (1968-12-01), Leach
patent: 3594461 (1971-07-01), Jacob
patent: 3767744 (1973-10-01), Holl
patent: 4205455 (1980-06-01), Kihlstedt
patent: 4272469 (1981-06-01), Smith
patent: 4439122 (1984-03-01), Besse et al.
patent: 4557881 (1985-12-01), Rabotski
Bullard Calvin P.
Szubelick F. Paul
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