Method for producing a tapered pipe of reinforced synthetic resi

Details Method for producing a tapered pipe of reinforced synthetic resi Method for producing a tapered pipe of reinforced synthetic resi

1975-01-06

1977-01-11

Hoag, Willard E.

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

264257, 264259, 264295, 264311, 264313, 264331, 264339, B29C 504, B29D 302, B29D 2300

Patent

active

040027155

ABSTRACT:
A tapered synthetic resin pipe can be produced by winding belt-like or thread-like glass fiber around a tapered core bar, inserting it into a tapered mold and thereafter pulling out only the core bar, pouring a thermosetting synthetic resin in liquid form into the mold, inclining the mold by a predetermined angle from the horizontal position and rotating it at a predetermined rate of rotation.

REFERENCES:
patent: 2728127 (1955-12-01), Armstrong
patent: 2783174 (1957-02-01), Stephens
patent: 2785442 (1957-03-01), Boggs
patent: 3379591 (1968-04-01), Bradley
patent: 3697346 (1972-10-01), Van Dorn et al.
patent: 3775207 (1973-11-01), Harmon
Randolph et al, Plastics Engineering Handbook, Reinhold, N.Y. (1960) pp. 297-299 Relied on.

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