Retractable multi-hulled watercraft
OwnerWilliam S. Chaconinventor
Life of this patent
Estimating the term…
Abstract
A catamaran boat that can be sailed or motor driven having a central cabin structure carried above water by a pair or more of retractable hulls whether hulls are extended or retracted. Each hull outboard side has an upward extending hull wall hinged close to the edge of roof on two opposing sides of cabin structure so as to allow hulls to swing retract under the cabin structure, swinging from these hinges attached close to the roof. Each hulls inboard side has retraction guiding means for rolling or sliding on tracks which are attached to cabin structure's underside and end wise attached to a outer surrounding frame. A pair of dual threaded shafts with opposite threaded brackets attached to inboard side forward and rearward end of each hull functions to spread hulls apart or return closer together.
Claims20
A retractable multi-hull watercraft comprising:
- (a) a horizontal central cabin structure having a roof with port and starboard edges, a plurality of walls, and a floor structure with an underside track system;
- the underside track system comprising a plurality of parallel, spaced-apart and athwartly disposed tracks attached end-wise to an outer surrounding frame;
- (b) port and starboard longitudinally extending parallel retractable hulls, each hull having an outboard side and an inboard side;
- (c) each hull outboard side comprising an upwardly extending hull wall;
- each hull wall having a top-end hinge row and a bottom-end hinge row, the top-end hinge row pivotally attached close to the respective one of said edges of said cabin structure roof, the bottom-end hinge row pivotally attached close to said hull outboard side;
- (d) each hull further having an inboard guiding means for rolling or sliding on said underside track system, whereby each outboard side hull wall swings from said top-end hinge row pivoting close to said edge of the roof while each hull inboard side is guided on said underside track system for retraction under said cabin structure thus enabling said hulls to carry the weight of said cabin structure whether said hulls are extended or retracted, the outboard side hull wall being always held upright.
A retractable multi-hull watercraft comprising:
- (a) a horizontal central cabin structure having a roof with port and starboard edges, a plurality of walls, and a floor structure with an underside track system;
- the underside track system comprising a plurality of parallel, spaced-apart and athwartly disposed tracks attached end-wise to an outer surrounding frame;
- (b) two pairs of longitudinally extending parallel retractable hulls consisting of a port forward hull, a port aft hull, a starboard forward hull and a starboard aft hull, each hull having an outboard side and an inboard side;
- (c) each hull outboard side comprising an upwardly extending hull wall;
- each hull wall having a top-end hinge row and a bottom-end hinge row, the top end hinge row pivotally attached close to the respective one of said edges of said cabin structure roof, the bottom-end hinge row pivotally attached close to said hull outboard side;
- (d) each hull further having an inboard guiding means for rolling or sliding on said underside track system, whereby each outboard side hull wall swings from said top-end hinge row pivoting close to said edge of the roof while each hull inboard side is guided on said underside track system for retraction under said cabin structure thus enabling said hulls to carry the weight of said cabin structure whether said hulls are extended or retracted, the outboard side hull wall being always held upright.
A retractable multi-hull watercraft comprising:
- (a) a horizontal central cabin structure having a roof with port and starboard side edges, a plurality of walls, and a floor structure with an underside track system;
- the underside track system comprising a plurality of parallel, spaced-apart and athwartly disposed tracks attached end-wise to an outer surrounding frame;
- (b) port and starboard longitudinally extending parallel retractable hulls, each hull having an outboard side and an inboard side;
- (c) each hull outboard side comprising an upwardly extending hull wall;
- each hull wall having a top-end hinge row and a bottom end, the top-end hinge row pivotally attached close to the respective one of said edges of said cabin structure roof, the bottom end non-pivotally secured close to said hull outboard side;
- (d) each hull further having an inboard guiding means for rolling or sliding on said underside track system, whereby each outboard side hull wall swings from said top-end hinge row pivoting close to said edge of the roof while each hull inboard side is guided on said underside track system for retraction under said cabin structure thus enabling said hulls to carry the weight of said cabin structure whether said hulls are extended or retracted, the outboard side hull wall being always held upright.
Dependencies are inferred from the claim text.