Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – Agglomeration or accretion
Patent
1993-12-17
1995-08-15
Kuhns, Allan R.
Plastic and nonmetallic article shaping or treating: processes
Carbonizing to form article
Agglomeration or accretion
264 465, 264 468, 264255, 264278, 264318, 264338, B29C 4414
Patent
active
054416760
ABSTRACT:
A method for manufacturing integral elastic supports formed by an upper covering (2), by an intermediate filler (3) and by a semirigid shell (4) entails the use of a mold with a hollow lower part, a flat upper part, and at least one intermediate plate. The method includes the following steps: opening of the mold; deposition on the lower part of a covering sheet with an excess border; securing of the excess border by means of the locking plate; deformation of the covering sheet in vacuum; pouring of a first layer of a gel compound in the fluid state; coupling of a semirigid shell to the upper part of the mold; pouring of a second layer of an expandable resin in the fluid state; closing of the mold; opening of the mold and removal of the finished support. The expandable resin is poured onto the gel compound after a period of time that is sufficient to allow the compound to assume a consistency and shape of its own but is shorter than the full polymerization time so as to allow it to react at least partially with the resin.
REFERENCES:
patent: 718850 (1903-01-01), Kruseman
patent: 2976577 (1961-03-01), Gould
patent: 3020260 (1962-02-01), Nelson
patent: 3161436 (1964-12-01), Hood
patent: 3187069 (1965-06-01), Pincus et al.
patent: 3487134 (1969-12-01), Burr
patent: 3548420 (1970-12-01), Spence
patent: 3663973 (1972-05-01), Spence
patent: 3773875 (1973-11-01), Lammers
patent: 3807793 (1974-04-01), Jacobs
patent: 3943215 (1976-03-01), Grune et al.
patent: 4012072 (1977-03-01), Hansen
patent: 4130614 (1978-12-01), Saidla
patent: 4588229 (1986-05-01), Jay
patent: 4766025 (1988-08-01), Sanok et al.
patent: 4808469 (1989-02-01), Hiles
patent: 4815361 (1989-03-01), Chiarella
patent: 5017114 (1991-05-01), Onnenberg et al.
patent: 5037591 (1991-08-01), Rohrlach et al.
patent: 5207957 (1993-05-01), Heath et al.
Kuhns Allan R.
Selle Royal S.p.A.
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