Class 114/140 - KEELS

Subclass of Class 114 - Ships
Definition: Keels and their structure and means and methods of securing
No. of patents: 123
Last issue date: 11/30/2010

Number	Title	Issue Date
4044703	Sailboat control apparatus A sailboat pivotally carries a pair of weighted complementary shaped keels for independent rotation about a common longitudinally directed medial hinge axis for influencing the roll, moment of inertia and draft of the boat. The keels are independently sup...	08/30/1977
3948197	Sailboat hull configuration A sailboat hull adapted to receive a mast and sailboat rigging with an interior concave keel forming an interior walkway. The keel is sufficiently deep and open to allow one to walk in the keel to provide sufficient head room for a person of normal height...	04/06/1976

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