Apparatus for adjustable fin and fin block

Details Apparatus for adjustable fin and fin block Apparatus for adjustable fin and fin block

1995-01-04

1996-04-02

Swinehart, Edwin L.

Buoys, rafts, and aquatic devices

Water skimming or walking device

Having stabilizing surface

441 68, 114130, 114141, B63B 100

Patent

active

055035817

ABSTRACT:
A water ski adjustable fin block and fin are disclosed. The fin block employs a slidable wedge for clamping the fin in place within the fin block during use and allowing the fin to be unclamped just enough to allow adjustment of the fin. A screw arrangement is used to move the wedge. The adjusters allow the leading edge and trailing edge of the fin to be adjusted as to vertical relationship with the water ski. A third adjuster allows the fin to be move longitudinally toward the front or back of the ski. The adjusters provide captive treatment of the fin preventing the fin from excessive movement, or even falling out, while adjustment is performed. The present invention allows a water skier to easily adjust the fin using an allen key or the like.

REFERENCES:
patent: 3950807 (1976-04-01), Sharpe
patent: 4439166 (1984-03-01), Maxwell
patent: 5299963 (1994-04-01), Isensee

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