发明名称 Die for making extruded pencil blank
摘要 A generally flat rectangular pencil blank made from a composite celluosic and resin material or cross-linking agent includes a longitudinal axis, a first surface and a second surface with a repeatable profile transverse to the longitudinal axis on the first surface of the blank, the profile representing an approximate peripheral shape of a repeated series of longitudinal sections of an outside peripheral portion of a series of parallel elongated pencils, and an integral web between each adjacent pair of the series of longitudinal sections and extending to the second surface. In one embodiment, the second surface further includes a series of spaced parallel longitudinal grooves for reception of pencil cores, formed on the second surface and positioned laterally so as to be aligned to an apex of each repeatable profile. Methods of making the pencil blanks including dies and molds for making the pencil blanks are also disclosed.
申请公布号 US6171096(B1) 申请公布日期 2001.01.09
申请号 US19990386324 申请日期 1999.08.30
申请人 CALIFORNIA CEDAR PRODUCTS COMPANY 发明人 HOOD LAURENCE R.
分类号 B43K19/16;(IPC1-7):B29C47/14;B29C37/00;B29C47/12 主分类号 B43K19/16
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