Plastic article or earthenware shaping or treating: apparatus – Distinct means to feed – support or manipulate preform stock... – And means to form or reshape preform
Patent
1994-07-07
1995-11-07
Davis, Robert B.
Plastic article or earthenware shaping or treating: apparatus
Distinct means to feed, support or manipulate preform stock...
And means to form or reshape preform
264257, 264313, 4251291, 425389, 425394, B29C 7044, B29C 7048
Patent
active
054643376
ABSTRACT:
A resin transfer molding system including a sealable chamber having opposing flexible diaphragms forming an outer reconfigurable tooling surface and an inner surface surrounding a workpiece including fibrous reinforcing material to be impregnated and formed over a mold surface. There are means for impregnating the fibrous reinforcing material and means for compressing the diaphragms about the fibrous reinforcing material and for urging the compressed diaphragms and the fibrous reinforcing material contained therein over the mold surface to conform the compressed diaphragms and the fibrous reinforcing material to the contours of the mold surface.
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Bernardon Edward
Foley Michael F.
Davis Robert B.
The Charles Stark Draper Laboratories
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