发明名称 Darts having an anti-deflection apparatus
摘要 A dart is provided with a pivotable flight assembly relative to the main dart body. The coupling between the flight and main body portions of the dart comprises a subassembly including a centering piston and bearing being spring-biased in a housing. The centering piston extends from the housing of the subassembly and connects to the flight assembly. The flight assembly is then pivotable with the centering piston acting on the bearing to reduce deflection of subsequently thrown darts.
申请公布号 US4858927(A) 申请公布日期 1989.08.22
申请号 US19880159322 申请日期 1988.02.23
申请人 SIMMONS, DANIEL E. 发明人 SIMMONS, DANIEL E.
分类号 F42B6/00 主分类号 F42B6/00
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