Patent ID: 7722348
Filing Date: 2010-05-25
Classification: B29C

Abstract:
1. A mold assembly, comprising: a central drum having cylindrical sidewalls, a bottom wall, an open top, and a hollow interior; a plurality of hollow blade molds disposed in circumferentially spaced relation to one another about said central drum and in radial relation to a longitudinal axis of said central drum; each of said hollow blade molds including a top piece and a bottom piece that abut one another along a parting line when placed into confronting relation to one another, said top and bottom pieces adapted to be releasably secured to one another; a plurality of struts secured to said central drum in circumferentially spaced relation to one another and in radial relation to said longitudinal axis of said central drum; a plurality of openings formed in said cylindrical sidewalls of said central drum; a plurality of openings formed in each strut of said plurality of struts; a plurality of elongate bundles of woven glass; each elongate bundle of woven glass of said plurality of elongate bundles extending through at least one opening of said plurality of openings formed in said central drum and through at least one opening formed in an associated strut of said plurality of struts; each of said struts and associated bundle of woven glass being housed by an associated top piece and bottom piece of said hollow blade molds when said top and bottom pieces are placed into confronting relation with one another and releasably secured to one another; a resin reservoir positioned externally of said vacuum chamber, said resin reservoir adapted to deliver resin to said hollow interior of said central drum; a motor mounted outside of said stationary vacuum chamber; said motor adapted to rotate said mold assembly; whereby rotation of said mold causes resin in said hollow interior of said central drum to flow radially outwardly of said central drum through said openings formed in said cylindrical sidewalls of said central drum along the respective extents of said bundles of woven glass until each blade mold is filled with resin; whereby a finished molded product having a monolithic structure is produced; and whereby said finished molded product is removed by separating each blade mold top piece from each blade mold bottom piece.