Rowing oar system

Details Rowing oar system Rowing oar system

2006-12-05

2006-12-05

Swinehart, Ed (Department: 3617)

Marine propulsion

Oar or paddle

Articulated sectional oar or paddle

Reexamination Certificate

active

07144284

ABSTRACT:
An oar consisting of two parallel shafts linked on both ends to form a parallelogram configuration, which keeps the oar's blade and handle parallel to one another and perpendicular to the boat throughout the rowing cycle. The system is further enhanced to provide an internal, adjustable feathering system, interchangeable handles and blades and an integrated, quick-release oarlock.

REFERENCES:
patent: 325055 (1885-08-01), Clark
patent: 402114 (1889-04-01), Sweet
patent: 3324490 (1967-06-01), Jewett
patent: 2005/0070181 (2005-03-01), Bleicken
patent: 5-345592 (1993-12-01), None

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