A jet flow propelled surfboard assembly comprises a longitudinally forwardly elongated structure including a flotation board to support a surfer and two positive displacement pumps which pistons can be manually operated in seesaw-like actions by feet of the surfer to generate jet flows to propel the surfboard assembly.
申请公布号
US7833072(B2)
申请公布日期
2010.11.16
申请号
US20090319805
申请日期
2009.01.12
申请人
HSIA CHIH-YU;HSIA MICHAEL JONATHAN;HSIA PATRICIA SHIRLEY
发明人
HSIA CHIH-YU;HSIA MICHAEL JONATHAN;HSIA PATRICIA SHIRLEY