Arrow
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专利名称：Arrow
发明人：Richard F. Carella 申请号：US05/402303
申请日：19731001
公开号：US04003576A
公开日：
19770118
专利内容由知识产权出版社提供
摘要：An arrow comprising a shaft with forward and rearward ends. An integral plastic vane member extends along the shaft adjacent the rearward end and includes first and second vanes spaced from the shaft by a pair of spaced generally parallel support vanes. The support vanes are interconnected by a base portion which may take one of various configurations for engaging the arrow shaft. The first and second vanes are generally triangular in configuration and are planar; however, one of the first and second vanes is disposed so as to angle downwardly from the front to the rear relative to the shaft while the other vane is disposed to angle upwardly from front to rear relative to the shaft to induce rotation of the arrow shaft during flight. The support vanes can also be spiralled to induce rotation. Thus, the first and second vanes and the first and second support vanes provide four vanes from one integral piece of plastic and all of which perform an aerodynamic function.
申请人：CARELLA; RICHARD F.
代理机构：McGlynn and Milton
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