Apparatus for manufacturing reinforced hose

Details Apparatus for manufacturing reinforced hose Apparatus for manufacturing reinforced hose

1987-06-30

1988-12-13

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Extrusion shaping means

4251331, 4253761, 425380, 425462, 425467, B29C 4704

Patent

active

047907371

ABSTRACT:
In an apparatus for manufacturing a reinforced hose, a reinforcing layer-forming device is arranged so as to be concentric with the material efflux port of an outer tube extruder and an inner tube extruder so that inner tube formation, the reinforcing layer formation and the outer tube extruding can be performed continuously and nearly at the same time on a torpedo projected beyond the top end of an inner die of the inner tube extruder. A plurality of extrusion passages into which screws of the extruder is inserted are formed in a cylinder of the inner tube extruder along the extended axial line of an inner head for investing an inner tube of the reinforced hose with a multi-layer structure.

REFERENCES:
patent: 2456141 (1948-12-01), Myerson
patent: 2887720 (1959-05-01), Gottmanns
patent: 4057376 (1977-11-01), Berger
patent: 4322202 (1982-03-01), Martinez
patent: 4405547 (1983-09-01), Koch et al.
patent: 4472126 (1984-09-01), Mitsui et al.
patent: 4517039 (1985-05-01), Satzler
patent: 4548568 (1985-10-01), Herbert et al.
patent: 4591487 (1986-05-01), Fritsch
patent: 4652224 (1987-03-01), Golisch
Transcript of Record in the United States Court of Customs and Patent Appeals, Patent Appeal Docket No. 79-593; In re Application of Masatoshi Kamon et al., Appeal from Board of Appeals; Ser. No. 644,090 26 Sheets Containing 46 Pages of Transcript.

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