Paddle blade and shaft I-beam joint

Details Paddle blade and shaft I-beam joint Paddle blade and shaft I-beam joint

2009-04-24

2011-11-15

Olson, Lars A (Department: 3617)

Marine propulsion

Oar or paddle

C416S074000

Reexamination Certificate

active

08057271

ABSTRACT:
A paddle including a shaft having a distal end, the distal end ending in a protrusion; and a paddle blade having a proximal end joined to the distal end of the shaft, the proximal end having an inner surface and at least one internal longitudinal slot disposed adjacent to the inner surface engaged with the protrusion.

REFERENCES:
patent: 1789749 (1931-01-01), Herring
patent: 2343726 (1944-03-01), Witt
patent: 4147469 (1979-04-01), Sherberne
patent: 6261141 (2001-07-01), Heap
patent: 6796862 (2004-09-01), Abbenhouse et al.
patent: 6991501 (2006-01-01), Wilce
patent: 7309364 (2007-12-01), Wagenknecht et al.
patent: 2005/0101200 (2005-05-01), Townsend

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