Retractable hulled catamaran boat

Abstract

Retractable hulled catamaran boat comprising: Central body also port and starboard hulls. Said body having port and starboard walls with entry openings; also floor with underside having hull span stop means and being smooth and/or having track or channel system for said hulls retractable mounting. Said hulls with upright means having inboard sides with mounting means for roller (slider) mounting on said floor underside enabling hull retraction under said body or extension and having outboard sides attaching an associated hull roof. First embodiment said roof being minimum two fastened panels. Second and third embodiments said roof being three dimensional enclosure. First and second embodiments said roof free top/inboard edge attaching associated said walls. Third embodiment said roof inboard edges angled forming outward span stop and each said roof travels through opening in associated said walls. Said roof folds, detaches, or retracts allowing hull retraction.

What is claimed as new is as follows: 
     
         1 . A retractable hulled catamaran boat comprising:
 (a) a central body structure having a floor structure with rising rigid port and starboard walls wherein each said walls include a passage-way entry opening;   (b) parallel retractable port and starboard hulls having upright brace means to remain upright;   (c) said hulls inboard sides having mounting means which include a plurality of rollers (or sliders) for guided roller (or slider) mounting on said floor structure underside;   (d) said floor structure underside characterized in that it is a smooth surface for which said mounting means rollers (or sliders) directly roll (or slide) on and/or having a system of spaced-apart transversely disposed tracks or recessed channels shaped for guiding said mounting means rollers (or sliders) to roll (or slide) on/in and further characterized in that having port side and starboard side hull span limiting stop means consisting of longitudinal lips and/or track (or channel) abutting stops for limiting spread between said mounting means so as to always be under said floor structure;   (e) said hulls outboard sides having an upward extending hull roof consisting of at least two panels with fastening means for attaching longitudinally to each other, fastening means for attaching longitudinally said panels free top edge to associated said walls, and fastening means for attaching longitudinally said panels free bottom edge to associated said hulls outboard side;   Whereby each said hulls inboard side mounted by said mounting means to said floor structure underside is guided to roll (or slide) closer together for retraction under said floor structure while share carrying above water said central body structure and whereby each said hull roof pivots (or detaches) from said walls said fastening means in a manner to either fold or adjust span or bottomly change position during said hull retraction.   
     
     
         2 . The invention as defined in  claim 1  further comprising each said hull roof includes a span adjustment means to lockable vary the span width of said hull roof whereby each said hulls outboard side swings from associated said walls during said hull retraction. 
     
     
         3 . A retractable hulled catamaran boat comprising:
 (a) a central body structure having a floor structure with rising rigid port and starboard walls wherein each said walls include a passage entry opening;   (b) parallel retractable port and starboard hulls having upright brace means to remain upright;   (c) said hulls inboard sides having mounting means which includes a plurality of rollers (or sliders) for guided roller (or slider) mounting on said floor structure underside;   (d) said floor structure underside characterized in that it is a smooth surface for which said mounting means rollers (or sliders) directly roll (or slide) on and/or having a system of spaced-apart transversely disposed tracks or recessed channels shaped for guiding said mounting means rollers (or sliders) to roll (or slide) on/in and further characterized in that having port side and starboard side hull span limiting stop means consisting of longitudinal lips and/or track (or channel) abutting stops for limiting spread between said mounting means so as to always be under said floor structure;   (e) said hulls outboard sides having an upward extending hull roof consisting of a multi-planed three dimensional enclosure with fastening means for attaching longitudinally free outboard edge to associated said hulls outboard side and fastening means for attaching longitudinally free inboard edge to associated said walls;   Whereby each said hull roof free outboard edge detaches or pivots from said hulls outboard side and free inboard edge detaches or pivots from said walls in a manner to rest on/in said central body structure thereby allowing said hull retraction and each said hulls inboard side mounted by said mounting means to said floor structure underside is guided to roll (or slide) closer together for retraction under said floor structure while share carrying above water said central body structure.   
     
     
         4 . A retractable hulled catamaran boat comprising:
 (a) a central body structure having a floor structure with underside having longitudinal port and starboard perimeter lips thereon and with topside having rising rigid port and starboard walls thereon;   (b) parallel retractable port and starboard hulls having upright brace means to remain upright;   (c) said hulls inboard sides having mounting means which includes a plurality of rollers (or sliders) for guided roller (or slider) mounting on said floor structure underside wherein said hulls inboard sides span between said lips;   (d) said floor structure underside characterized in that it is a smooth surface for which said mounting means rollers (or sliders) directly roll (or slide) on and/or having a system of spaced-apart transversely disposed tracks or recessed channels shaped for guiding said mounting means rollers (or sliders) to roll (or slide) on/in;   (e) said hulls outboard sides having an upward extending hull roof consisting of a multi-planed three dimensional rigid enclosure with fastening means for attaching longitudinally free outboard edge to associated said hulls outboard side and said hull roof enclosure inboard edges angled to form a span stop so as to limit outward span and each said walls having a passage-way opening shaped to accommodate said hull roof wherein each said hull roof travels through associated said walls either before or during or after said hulls retraction or extension;   Whereby each said hull roof retract closer together through said walls and each said hulls inboard side mounted by said mounting means to said floor structure underside is guided to roll (or slide) closer together for retraction under said floor structure while share carrying above water said central body structure.   
     
     
         5 . The invention as defined in  claims 1 ,  3  and  4  wherein said fastening means for attachment includes securing devices selected from a group consisting of hinges, brackets, angular channels or trackways, locks, telescoping braces, telescoping engaged panels-within-panels, slidably trackway engaged side-by-side panels, rabbit joints, elongated roller raceways, flexible bending materials. 
     
     
         6 . The invention as defined in  claims 1 ,  3  and  4  further comprising an extension-retraction means for spreading apart and returning closer together said hulls. 
     
     
         7 . The invention as defined in  claim 6  wherein said extension-retraction means for spreading apart and returning closer together said hulls comprises port hull front and rear threaded shafts and likewise starboard hull front and rear threaded shafts wherein each said shaft extends inward from inside said hulls interior of outboard side to thread engage with said central body structure whereby the rotation of each said threaded shaft is adapted to cause associated said hull to extend outward or retract inward, said port hull front and rear threaded shafts are sprocketed having means of synchronizing said rotation together and likewise said starboard front and rear threaded shafts are sprocketed having means of synchronizing said rotation together, said means of synchronizing includes chains or belts connecting said sprockets. 
     
     
         8 . The invention as defined in  claims 1 ,  3  and  4  further comprising one or more means of propulsion including a number of engine means and/or a number of sails and further comprising one or more means of water sealing to prevent water entry. 
     
     
         9 . The invention as defined in  claims 1 ,  3  and  4  further comprising an accessible alcove disposed between said walls on said floor structure wherein usable interior space for sleeping. 
     
     
         10 . The invention as defined in  claims 1 ,  3  and  4  further comprising a bridge area on said floor structure having thereon one or more multiple person seating means disposed parallel and/or perpendicular to said walls and further comprise a number of deck areas disposed on a number of levels and said deck areas may have disposed a number of multiple person seating means and/or food preparation/health means and/or storage means. 
     
     
         11 . The invention as defined in  claims 1 ,  3  and  4  wherein said hulls are mirror images of each other, may be in the form of pontoons or other floatable forms, and may be a plurality of forms serial connected and/or parallel connected to function as a pair of hulls. 
     
     
         12 . The invention as defined in  claims 1 ,  3  and  4  further comprising a cabin between said walls on said floor structure and may have disposed inside and/or topside one or more multiple person seating means and further may be multi-level planed. 
     
     
         13 . The invention as defined in  claim 12  wherein top surface of said cabin is walkable to support the weight of a number of adults. 
     
     
         14 . The invention as defined in  claims 10  and/or  12  further comprising a drivers seat and navigational controls disposed on said bridge area and/or on said cabin top area and/or inside said cabin. 
     
     
         15 . The invention as defined in  claims 1 ,  3  and  4  further comprising one or both said hulls having multiple person seating means and/or food preparation/health means and/or storage means disposed above said hulls and/or inside said hulls. 
     
     
         16 . The invention as defined in  claims 1 ,  3  and  4  further comprising each said hulls having a rear walkable deck and stairs inclined up to said deck. 
     
     
         17 . The invention as defined in  claims 1 ,  3 ,  4 , and  12  further comprising a number of overhead roof or canopy structures consisting of rigid materials and/or non-rigid materials and may have walkable or non-walkable surfaces thereon. 
     
     
         18 . The invention as defined in  claims 1 ,  3  and  4  further comprising a means for steering and stabilization control such as a rudder system, a number of keels, a number of lateral extending floating devices. 
     
     
         19 . The invention as defined in  claims 1 ,  3  and  4  wherein said floor structure comprises fastening means to enable said floor structure to fold or telescope or side-by-side engage for varying longitudinal length or height or width and/or said floor structure comprises inclined stair means for inclined walking. 
     
     
         20 . The invention as defined in  claims 1 ,  3  and  4  further comprising port and starboard wheel assemblies and a towing hitch wherein said wheel assemblies and/or said towing hitch may be permanently mounted or detachably mounted whereby said present invention is enabled to be towed.