Seamless, tapered tubular member

Details Seamless, tapered tubular member Seamless, tapered tubular member

1995-02-08

1997-01-28

Raimund, Christopher W.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 363, 428 369, 428 3691, B29D 2200

Patent

active

055976301

ABSTRACT:
An elongated, tapered seamless and hollow tubular member of net shape is disclosed. The tubular member is made by a method comprising providing an elongated, tapered mandrel, applying a composite material consisting of reinforced fibers with a resin on the mandrel, providing a shell having an elongated, tapered bore, inserting the mandrel with the composite material applied thereon into the bore of the shell to provide a mold assembly, heating the mold assembly, displacing the mandrel and shell longitudinally toward each other to compress the composite material of the article being formed by simultaneously applying a tensile force at one end of the mandrel and a compressive force at the other, allowing the mold assembly to cool, and then separating the shell and mandrel from the molded article.

REFERENCES:
patent: 3974012 (1976-08-01), Hogarth

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