Tubular article and method of making the same

Details Tubular article and method of making the same Tubular article and method of making the same

1974-10-10

1977-01-25

Bell, James J.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

138127, 138141, 138149, 138DIG10, 156245, 428195, 428209, 428247, 428253, 428256, 428310, F16L 900

Patent

active

040052346

ABSTRACT:
Tubular articles and the like and methods of making the same are disclosed, the tubular article being of desired tortuous shape, strong and rigid, free from porosity, light in weight, resistant to high and low temperatures with outerskin layers to improve fluid conveying and storage characteristics for example an exterior metallic foil or mesh lamina or skin of heat reflective and dispersive qualities and suitable for electric resistance heating if desired. The article is formed in a mold with an inflatable mandrel which carries a surrounding knitted fabric resin carrying component and with an exterior lamina or skin which is applied in the mold for subsequent integration in the article by matrix curing.

REFERENCES:
patent: 2858854 (1958-11-01), Daggett
patent: 3547162 (1970-12-01), Schaerer

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