Marine propulsion – Oscillating propelling means
Reexamination Certificate
2009-01-12
2010-11-16
Avila, Stephen (Department: 3617)
Marine propulsion
Oscillating propelling means
C440S023000
Reexamination Certificate
active
07833072
ABSTRACT:
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.
REFERENCES:
patent: 3479674 (1969-11-01), Beymer
patent: 4954106 (1990-09-01), Shuh-Chin
patent: 5607331 (1997-03-01), Lekhtman
Webster's II, New Riverside University Dictionary, Houghton Mifflin Company, Boston Mass., 1984, definition of “seesaw” p. 1056.
Hsia Chih-Yu
Hsia Michael Jonathan
Hsia Patricia Shirley
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