Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
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
Bell James J.
Sipler Plastics, Inc.
Wobensmith, 2nd Z. T.
Wobensmith, III Z. T.
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