U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!

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Class 114/61.19 - Hull pivots about a vertical axis


Subclass of Class 114 - Ships
Definition: Subject matter wherein the hull is rotatable about or angularly
No. of patents: 9
Last issue date: 05/06/2008


NumberTitleIssue Date
7367153Collapsible planar board
The planar board disclosed features a convexo-concave board characteristic that allows the boards to channel the water creating a water rail for smoother more controlled performance. The planar board also features one removable cross member end that allows for colla...
05/06/2008
7314014Water craft
A water craft (77) is disclosed which includes a chassis portion (78), at least four water engaging means (30, 34, 38, 42) and interconnecting means (94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, ...
01/01/2008
7255618Screw drive vehicle
A screw drive vehicle has a main housing with forward and aft ends and first and second lateral sides. A first support arm rotatably supports a first pontoon assembly from the first lateral side of the main housing. A second support arm rotatably supports a second p...
08/14/2007
6966807Screw drive vehicle
A screw drive vehicle has a main housing with forward and aft ends and first and second lateral sides. A first support arm rotatably supports a first pontoon assembly from the first lateral side of the main housing. A second support arm rotatably supports a second p...
11/22/2005
6910436Propulsion steered towboat
A conventional style of towboat has been used on U.S. waterways for decades, with steering control reliant on a triad of rudders for each screw, resulting in up to a dozen rudders installed. This propulsion steered towboat relies on an enhanced method of steering wi...
06/28/2005
5301623Multi hull vessel with bendable hulls
A catamaran sailing vessel has both of its hulls articulated to provide substantially equal length forward and aft hull sections that are pivotally connected to one another about axes parallel to the yaw axis. A rigid deck structure spans the two hulls an...
04/12/1994
3970025Catamaran
A catamaran includes a system of at least two pairs of opposed pontoons arranged in tandem relation with one pair forwardly of the other. Each pontoon is supported near its mid point on a generally vertical axis to a superstructure. The pontoons of one pa...
07/20/1976
3961590Catamaran watercraft
A catamaran watercraft having a pair of parallel pontoons which pivot along their respective longitudinal axes. The pontoons are each preferably triangular in cross section, having a planar bottom surface and a linear top surface forming the longitudinal ...
06/08/1976
3937171Multihull tugboat
A tugboat of the kind used for moving and steering barges has laterally spaced individual hulls which are connected together by cross members in a parallel linkage connection. This permits the hulls to move relative to one another longitudinally while the...
02/10/1976
 
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