COLLAPSIBLE MANDREL TOOLS AND ASSOCIATED METHODS FOR FABRICATION OF WOUND COMPOSITE ARTICLES

WIPO Patent Application WO/2010/019964

A3

Mandrels of various configuration, and action, including collapsible mandrels, to be used in forming composite articles with preselected three dimensional shapes and construction are disclosed and described. In one aspect, such a mandrel may have a plurality of discrete segments coupled about a longitudinal axis and collectively forming an enclosure with a substantially continuous exterior working surface. The working surface can have a network of intersecting grooves formed therein, and such grooves can cooperatively establish a substantially continuous interconnected lattice corresponding to the three dimensional geometric configuration to be imparted to a composite article formed. The mandrel may optionally include a removable core assembly to aid in collapse of the mandrel.

JPS59181950	INSULATION REINFORCING DEVICE OF WIRE END
JPS59123061	[Title of the device] A tension control device of tape volume A head
WO/1990/000514	A METHOD AND APPARATUS FOR POSITIONING AT LEAST ONE THREAD, BAND OR THE LIKE IN A PRE-DETERMINED PATTERN ON A MATERIAL WEB

WILSON ERICH A (US)
RIDGES MICHAEL D (US)
KIPP MICHAEL D (US)

PCT/US2009/054083

April 01, 2010

August 17, 2009

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SIGMA TEK LLC (US)
WILSON ERICH A (US)
RIDGES MICHAEL D (US)
KIPP MICHAEL D (US)

B65H81/00

JPH0881128A	1996-03-26
JPH08259116A	1996-10-08
JPH0631336A	1994-02-08
JPH11244940A	1999-09-14
KR890008010Y1	1989-11-18

OSBORNE, David W. et al. (LLPP.O. Box 121, Sandy UT, US)

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