发明名称 Aquatic event timing device
摘要 An apparatus for timing of water-based activities or events, such as, sailboarding, yachting, motorboating and swimming. The apparatus comprises a rigid horizontal support bar, two vertical members attached to the ends of the support bar, buoyant floats attached to the vertical members and a transmitter/receiver package disposed on the vertical members. The apparatus acts as a gate which individuals or water-vehicles passing therethrough are detected or timed by the transmitter/receiver package contained thereon. The apparatus is kept stabilized by being secured to any nearby stationary object and by adapting the submerged portion of the apparatus to provide negative buoyancy.
申请公布号 US4657403(A) 申请公布日期 1987.04.14
申请号 US19850755431 申请日期 1985.07.16
申请人 RJB TIMING SYSTEMS, INC. 发明人 MORGAN, JOHN A.;BARTULA, WILLIAM;GILBERT, RICHARD D.
分类号 G04F8/08;(IPC1-7):G04F8/00 主分类号 G04F8/08
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