Marine propulsion – Oar or paddle – Articulated sectional oar or paddle
Reexamination Certificate
2007-05-29
2007-05-29
Sotelo, Jesús D. (Department: 3617)
Marine propulsion
Oar or paddle
Articulated sectional oar or paddle
Reexamination Certificate
active
10538460
ABSTRACT:
An object is to provide a Ro-scull which can suppress a decrease in thrust force by water resistance generated during turn-over operation and can realize high-speed cruise of a boat. The Ro-scull has a Ro-arm1and a Ro-blade2having a flat part12perpendicular to the Ro-arm1. The Ro-arm1is attached to an upper end portion of the Ro-blade2from an obliquely lower side. Namely, the Ro-arm1and the Ro-blade2are joined to each other while the Ro-arm1“receives” the Ro-blade2. A Ro-handle3is arranged not on the upper surface side but on the lower surface side of the Ro-arm1.
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Brooks & Kushman P.C.
Sotelo Jess D.
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