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公开(公告)号：US07699017B1
公开(公告)日：2010-04-20
申请号：US12152202
申请日：2008-05-12
申请人： Donald K. Marshall
发明人： Donald K. Marshall
IPC分类号： B63C11/46
摘要： A personal water craft propelled on the water's surface by the user pedaling a pedal crank that in turn rotates a propeller thrusting the craft in a forward or rearward direction. Steering is accomplished by an operator-controlled rudder at the aft of the craft. The craft is of unique design lending to persons who desire to snorkel observing undersea life in a comfortable prone position of appropriate pedal posture while enjoying the ease of navigating by pedal propulsion with less expenditure of effort than swimming.
摘要翻译： 使用者踩踏踏板曲柄，在水面上推进个人水上工艺，踏板曲柄又旋转螺旋桨向前或向后推动工艺。 转向由操作员控制的舵在船尾处完成。 该工艺具有独特的设计，借助于想要浮潜观察海底生活在舒适的适当踏板姿势的位置，同时享受踏板推进的便利性，而不是游泳花费更少的努力。
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公开(公告)号：US4669462A
公开(公告)日：1987-06-02
申请号：US577822
申请日：1984-02-07
申请人： Donald K. Marshall
发明人： Donald K. Marshall
CPC分类号： A62B7/02
摘要： The present invention comprises an elongated truncated cone-like thermoplastic tube which terminates at its base end in a ring that could be fitted over face of the wearer and held there by elastic bands, the lower end of the cone or trunk like tube terminating in a flexible ring which fits over an aerosol type container filled with compressed breathable gas.
摘要翻译： 本发明包括一个细长的截头圆锥形热塑管，其基端终止于一环，该环可装配在佩戴者的面上并由弹性带保持在其上，锥体或躯干状管的下端终止于 柔性环装配在装有压缩透气气体的气溶胶型容器上。
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