Method of forming reusable seamless mandrels for the fabrication

Details Method of forming reusable seamless mandrels for the fabrication Method of forming reusable seamless mandrels for the fabrication

1994-02-08

1995-10-24

Aftergut, Jeff H.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156169, 156173, 156175, 264314, B65H 8100, B65H 8102

Patent

active

054606756

ABSTRACT:
A method for fabricating, and a resulting structure for, a seamless, reusable and collapsible mandrel suitable for forming a plurality of seamless and hollow fiber wound vessels upon is disclosed. A destructible mandrel is used to form the seamless reusable mandrel. The destructible mandrel is preferably formed from a material which can be destroyed by dissolving, for example, materials such as foam or plaster. The seamless, collapsible, and reusable mandrel includes a plurality of different layers including a gas impermeable layer, a continuous fiber wound layer, and a release surface forming the outermost layer of the seamless, collapsible, and reusable mandrel. The resulting seamless, reusable and collapsible mandrel has advantages over mandrels which include a seam. Such advantages include a longer useful life and consistently high quality fiber wound vessels at a relatively low cost.

REFERENCES:
patent: 3220910 (1965-11-01), Walkey
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patent: 4921557 (1990-05-01), Nakamura
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patent: 5259901 (1993-11-01), Davis
Lubin, George, Handbook of Composites, Van Nostrand Reinhold Company, Inc., 1982, pp. 461-462.
"Filament Winding: its development, manufacture, applications, and design" by Rosato, et al., 1964.

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