Apparatus for producing variable-rate spring

Details Apparatus for producing variable-rate spring Apparatus for producing variable-rate spring

1983-09-15

1985-01-15

Hoag, Willard E.

Plastic article or earthenware shaping or treating: apparatus

Preform severing means

Cutter guided by or cooperating with peripheral edge of...

425308, 425547, 425553, 425574, 425575, B29C 100, B29H 308

Patent

active

044936311

ABSTRACT:
An elastomeric spring is formed by extruding a rubbery material into a reinforcing sleeve in a mold during relative motion between the mold and nozzle, and thereafter vulcanizing.

REFERENCES:
patent: 2862232 (1973-10-01), Rekettye
patent: 3594869 (1971-07-01), Sher
patent: 3724983 (1973-04-01), Nelson
patent: 3762849 (1973-10-01), Claes
patent: 4108956 (1978-08-01), Lee

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