Method for spiral deposition of an integrally bonded hollow foam

Details Method for spiral deposition of an integrally bonded hollow foam Method for spiral deposition of an integrally bonded hollow foam

1975-11-24

1977-07-05

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Forming structural installations in situ

Arched, domed, or vertical-cylindrical structure

52 80, 523094, 264 462, 264209, 264236, B29D 2704

Patent

active

040340279

ABSTRACT:
In an apparatus for the deposition of hardenable foamable compositions wherein a strip of foamable liquid composition is deposited within a restraining channel and subsequently hardened by means of a centrifugal dispensing head to form a hollow generally tubular strip, improved uniformity is obtained employing a spinning mandrel which projects into the portion of the strip during the foaming and partial curing.

REFERENCES:
patent: 3297802 (1967-01-01), Powers
patent: 3383257 (1968-05-01), James
patent: 3443276 (1969-05-01), Smith et al.
patent: 3726951 (1973-04-01), Smith et al.
patent: 3797981 (1974-03-01), Van Dijk
patent: 3890416 (1975-06-01), Bauer et al.

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