Air intake duct

Pipes and tubular conduits – Flexible

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Details

138121, 138173, 156245, F16L 11112, B29C 1165

Patent

active

061162884

ABSTRACT:
An air intake duct comprising a main body with bellows which is made by blow molding soft resin and ring-like reinforcements made of hard resin. As the soft resin, a material which is capable of keeping a form of a tube by itself is adopted. The reinforcements are previously mounted on the internal surface of a blow molding die and unite with the bellows in the main body in blow molding.

REFERENCES:
patent: 3050087 (1962-08-01), Caplan
patent: 3076737 (1963-02-01), Roberts
patent: 3626988 (1971-12-01), Chu
patent: 3737353 (1973-06-01), Gilbu
patent: 4415185 (1983-11-01), Vinciguerra et al.
patent: 5720656 (1998-02-01), Savage

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