Abstract:
A portable inflatable floatation device for use as a backpack frame to maintain a standard backpack thereto for hiking, with the back pack frame being convertible into floatation device seat, foot rest, and outrigger pontoon mounting. Inflatable pontoons that are to be carried on or in the backpack and are inflated into long cylindrical pontoons at a water site, whereat, with the back pack frame converted to the water craft seat, the seat is attached to span across the pair of parallel inflated pontoons and the outrigger portions of which seat are positioned to rest on and are strapped onto tops of the inflated pontoons, with top and bottom sections of the frame, respectively, pivoted to form and seat back and to a planar attitude with a seat bottom as a foot rest, and straight narrow spacers are secured, as with straps, to the forward and rear pontoon ends completing the floatation device. Removable oar locks may be secured to the outrigger portions for receiving oars assembled from components that are for transported on or in the back pack or a paddle may be assembled from which components for use inpaddling the device. The seat back can be lowered and pinned in place to extend in a planar attitude from the seat bottom to receive a cot cover installed between the spacers, arranging the floatation device as a sleeping platform, and the invention may further include a spring bar type tent for fitting to cover the sleeping platform.

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     This invention relates to inflatable floatation devices used for recreational purposes that are for carrying on and as an inclusion with a hikers pack to form a pontoon type floatation device suitable for lake or stream travel. 
     2. Prior Art 
     Pontoon type float devices for transporting a person on a body of water are not new, with such devices ranging from inner tubes, for supporting a swimmer or fisherman, to large heavy rubber pontoons for supporting a passenger compartment for running rapids. An example of such a fisherman&#39;s float device is shown in a Creek, et al., U.S. Pat. No. 5,217,400 that shows a seat arranged between a pair inflated tubes that a fisherman sits on. Which arrangement is not a pontoon device like that of the invention. 
     Pontoon float devices are, however, shown in Steel, U.S. Pat. No. 5,290,196; to Baker, U.S. Pat. No. 5,711,240; and to Merritt, et al., U.S. Pat. No. 5,878,688, with the Merritt, et al., device employing rigid pontoons. The Steel and Baker patents, like the invention, show seat structures supported between a pair of inflatable pontoons. However the pontoons of these patents are not light in weight nor are they readily filled and deflated. The pontoons of the Steel and Baker patents are unlike those of the invention that are easily transported, in a collapsed condition, by a single hiker who carries them in sacks, or the like, that are attached to a back pack, and with the back pack frame configurable to serve as a seat of the floatation device of the invention. Nor are the devices of these patents capable of being reconfigured into a sleeping platform that may include a tent, or the like, as is the invention, whose seat can be configured as a platform to support a person lying thereon, and with the pontoons having tabs fixed thereto for receiving tent posts fitted into holes in which tabs and pushed into the ground to receive a section of a tent material stretched there over. 
     BRIEF SUMMARY OF THE INVENTION 
     It is therefore a principal object of the present invention to provide a twin pontoon type water craft that includes a pair of individual pontoons that are each light in weight and collapsible so as to be fitted into and carried in a pocket of, or separate container for, suspension to a hikers back pack, which individual pontoons can be easily inflated and are for mounting to a seat structure that a back pack frame converts into and is attached across the pontoons for supporting an individual seated thereon and operating the water craft on a stream or lake surface. 
     Another object of the present invention is to provide a backpack frame that is arranged to be maintained by straps to a hikers back and can be reconfigured as the water craft seat and including strapping for mounting the seat between the pair of inflated pontoons. 
     Another object of the present invention is to provide, as an additional backpack frame capability, for its being reconfigured into a bed frame for suspension between the pontoons and to receive a mattress structure such as a pad, cot cover, inflatable mattress, or the like, to accommodate a person lying thereon. 
     Still another object of the present invention is to provide a sleeve for individually containing inflatable pontoon bladders that include tabs secured at their ends and having a reinforced hole formed therethrough to accommodate a tent pole like structure fitted therethrough and passed into a surface, with a number of which poles arranged to maintain a tent type covering structure stretched there over. 
     Still another object of the present invention is to additionally provide, as an accessory to the invention, a spring bar tent arrangement for mounting to tent poles maintained to the water craft pontoons, where each of at least a pair of tent poles is bent into an arch with individual pole ends fitted through spaced tabs secured onto each of the pontoon outer sleeves with the tent pole ends each pushed into the ground whereon the pontoons are positioned. 
     Still another object of the present invention is to provide a twin pontoon type water craft that is easily and conveniently transported by a single hiker in or mounted onto their back pack and with the back pack frame, and accessories capable of being reconfigured into components of the water craft, and accessories therefore. 
     The invention is in a readily and easily transportable water craft for supporting a person that is conveniently assembled from items transported in and on a backpack and backpack frame that is for transporting a person on a stream or lake surface. The water craft and its accessories are collapsible and deflatable so as to be capable of being transported in or hanging from a back pack of a single hiker. A bladder and outer sleeve for each pontoon is arranged to be collapsed so as to fit into a sack or sacks for attachment onto the backpack, with the backpack frame constructed to be folded and extended from its pack supporting attitude into a water craft seat and including strapping for mounting to the inflated pontoons. In which pack frame reconfiguration, a lower backpack waist support converts into a thigh rest with a backpack upper back rest to serve as a flexible cloth seat to receive the users buttocks therein, and with the backpack frame top or head end arranged to pivot and extend into a seat back, with pivot frame sides each to be rotated to extend oppositely and outwardly to rest upon and be strapped onto a midsection of an outer top surface of each pontoon, and the bottom or lower frame end to be extendable to support a persons legs resting thereon. 
     A collapsible paddle or pair of collapsible oars can be included with the invention, where, to accommodate oars, the frame sides are to each receive an oar lock fitted thereto to extend upwardly and with each oar lock to accommodate an oar fitted therein. The seat back is adjustable to be positioned in the plane of or planar to the seat bottom and its extension that supports the persons thighs and feet, providing a flat platform that can receive a cot cover fitted there over as a sleeping platform that accommodates a mattress, such as an inflatable mattress, whereon a person can lay down. Further, as an optional inclusion, individual tabs can be secured to extend outwardly from the surfaces of each of the pontoon sleeves that are to receive tent poles fitted therethrough that are passed into a surface, such as the surface of a beach whereon the water craft is positioned. With such tent poles to support a covering stretched therebetween forming a tent. The pole and covering combination can be at least a pair of telescoping poles each fitted through a sleeve or through loops formed in or extending from a section of a tent type material, with, when at least a pair of poles are each bent into an arc, and with the pole ends fitted through the holes in the tabs extending from the pontoon sleeves, a spring bar type tent is provided for covering the water craft. 
    
    
     DESCRIPTION OF THE DRAWINGS 
     In the drawings that illustrate that which is presently regarded as the best mode for carrying out the invention: 
     FIG. 1 is a rear perspective view of a hiker wearing a backpack that is part of and contains the invention in a portable inflatable floatation device; 
     FIG. 2A shows the backpack of FIG. 1 removed off from the hikers back and shows pontoon bladders that have been fitted into outer sleeves and inflated, and showing the pack as having been removed off from the backpack frame that is shown as including a rectangular support with pack top, side and bottom pack support bars, the top and bottom support bars arranged to pivot outwardly from the plane of a flat back section of the frame and showing the side support bar ends as collars that are fitted over sides of the frame flat back section; 
     FIG. 2B shows a bottom plan view of the backpack frame of FIG. 2A prior to the pack support side bars being rotated outwardly as wings for mounting onto the pontoons, as shown in FIG. 3; 
     FIG. 3 shows the assembled portable inflatable floatation device as including the pontoon bladders fitted into the sleeves of FIG.  2 A and inflated, shows the pack frame sides as having been pivoted rearwardly to the frame back to form wings that extend oppositely and are individually for positioning onto to extend partially across each inflated pontoon and sleeve and showing straps extending from the pack frame upper back support and across wings outer sides and around each of the pontoons for maintaining the pontoons positioned alongside the frame sides and showing the pack frame top bar telescoped outwardly and pivoted into a seat back between the inflated pontoons, with a pack frame upper backpack support arranged to receive a persons buttock, and with a frame lower back plate for supporting a persons upper legs, and showing a pack frame lower backpack support pivoted to the plane of the pack frame and telescoped outwardly as a foot rest; 
     FIG. 4 shows an enlarged side elevation perspective sectional view taken within the line  4 — 4  of FIG. 2B showing a side of the pack frame upper pack support rail moved from its planar attitude to the pack frame configuration of FIG. 2A, to, as shown in broken lines, its seat back attitude of FIG. 3, and showing a pin fitted behind the erected seat back for holding it in position; 
     FIG. 5 shows a side elevation section of the frame top bar pivoted and telescoped into its seat back position, with the bottom pack support bars pivoted upwardly to the plane of the frame flat back section and telescoped into a loot rest and showing an oar lock mounted onto each of the side pack support bars; 
     FIG. 5A shows an oar fitted into the open lock portion of the oar lock of FIG. 5, and shows a paddle handle end aligned for substitution for the oar hand grip end; 
     FIG. 5B shows an enlarged exploded sectional view taken within the line  5 B— 5 B of FIG. 5 showing the oar lock components exploded apart: 
     FIG. 6 shows the portable inflatable floatation device of FIG. 3 reconfigured as a sleeping platform with the seat back of FIG. 4 shown extending from and planar to the frame top and with the bottom pack support shown also in a planar attitude and telescoped outwardly, forming a flat surface that is shown covered by a section of a fabric material, or cot cover, that is maintained to the pack frame components by straps that encircle spacers fitted across the forward and rear pontoon ends; 
     FIG. 7 shows forward end view of a section of the sleeping platform of FIG. 6 showing the pontoon sleeves as including tabs connected to outer surfaces of the sleeve ends that each have reinforced holes formed therethrough that receive and pass a tent pole that is then pushed into a ground surface; and 
     FIG. 8 shows the floatation device of FIGS. 6 and 7 with a tent maintained to the tent poles of FIG.  6  and showing a tent flap pulled back showing the tent bottom supported on the sleeping platform of FIG.  6 . 
    
    
     DETAILED DESCRIPTION 
     FIG. 1 shows a hiker  10  carrying a fabric backpack  11  maintained onto pack frame  12  fitted across the hikers shoulders, and showing sacks  13  maintained to pack frame  12  pack support sides  25   a  and  25   b , as by straps. The backpack  11  may be a conventional item containing pockets, sacks and the like, or my be specially configured to contain and maintain components of the invention, within the scope of this disclosure. 
     In FIG. 2A the backpack  11  is shown as having been removed from the pack frame  12 , showing filled pontoons  15  that each includes a bladder  16 , shown in a broken away section in FIG. 5A, that are each contained in a sleeve  17 , which bladder and sleeves have been removed from the pack  11  and with each bladder having been fitted into a sleeve  17  and filled with air as through a bladder fill nozzle, not shown, forming air filled pontoons  15 , as shown also in FIG.  3 . The pack fame  12 , shown in FIGS. 2A,  2 B, and reconfigured as a seat in FIG. 3, includes a flat back section  20 , that is preferably formed from metal pipes, tubes, or the like, as a continuous outer rectangular support  21  that is open across its center and whereacross an upper back support  22  and a lower torso support  23  are strung. The upper back support  22  is to receive a person&#39;s buttock and the torso support  23  is to support that person&#39;s upper thighs when the invention is configured as a water craft, as described later herein with respect to FIGS. 3 through 5A. 
     Additional to the pack frame  12 , as shown in FIGS. 2A and 2B, top, side and bottom pack support bars  24 ,  25   a  and  25   b , and  26 , respectively, are fitted to the flat back section  20  of rectangular support  21  to extend therefrom, with the side pack support bars  25   a  and  25   b  each extending at approximately a right angle rearwardly and with the top pack support bar  24  shown planar to the rectangular support  21 . The top pack support bar  24  is to support a persons back as a seat back when the invention is configured as a floatation device  19 , as shown in FIG.  3 . The top pack support bar  24  can be telescoped outwardly, extending a U-shaped section  24   a  therefrom, as shown in FIG.  3 . The side pack support bars  25   a  and  25   b  are curved inwardly to approximate the curve of an inflated pontoon  15  and are to fit partially therearound when configured as floatation device  19 . The backpack  11  is maintained as with straps or strapping, shown as separate pairs of straps  27   a  and  27   b  to the pack frame  12 , that are shown removed in FIG. 3 for connecting the pontons  15  to the pack frame  12  flat back section  20  configured as the water craft seat, and a pair of straps  28   a , or the like, can be included with the pack  11 , as desired for connecting the invention elements, as set out hereinbelow, with straps  28   a  shown in FIG. 1 maintaining a rolled up mattress to the lower pack support bar  26 . Which straps, or other straps as carried in pack  11  can be used to individually attach respectively, the side support bars  25   a  and  25   b  to the seat and to spacers  18 , as shown in FIGS. 3,  5  and  5 A. Which spacers  18  are thin flat rectangular members to fit in pack  11  and each includes slots  18   a  formed therethrough across their opposite ends to receive straps. Shown as straps  28   a  and  28   b  fitted therethrough that are passed around each pontoons  15  end. The spacers  18  to span across the gap between which pontoons and serve as a head end and foot rest, respectively, for the water craft. Further, as discussed below, a cloth section  29 , that is preferably a section of thick canvas, or the like, can be fitted to the seat  12 , extending across the spacers  18 , as shown in FIGS. 6 through 8, so as to cover the pack frame  12  that show the top pack support bar  24  in its planar configuration and stretched between the spacers  18 , as will be discussed later herein. 
     Accordingly, the floatation device  19  configured, as shown in FIGS. 3,  5 A and  5 B, is to accommodate a person, sitting on a seat having a back rest maintained between pontoons  15  and provides for supporting the persons legs on the lower torso support  23  and supports their legs on the telescoped bottom pack support bar  26  outwardly telescoped U-shaped end section  26   a . When the pack frame  12  is configured as a sleeping platform, as shown in FIGS. 6 through 8 the seat back is lowered to a planar attitude, and a cot cover  29  is installed there over, stretched between the spacers  18 . In which attitude, the cot cover  29  ends  29   a  are wrapped around the spacers  18 , with the cot cover side tabs  29   b  fitted around the outer sides, respectively, of the telescoped top and bottom pack support bars  24  and  26 , and are folded back upon themselves and coupled using snap couplings, Velcro type fasteners, or the like. 
     Preferably, the backpack  11  is configured to accommodate individual tube sections  35  that, as shown in FIG. 5A, are assembled as by telescoping the one section  35 end into another section end to where a ball type detent  36  that is maintained in a lesser diameter end of a section  35 , will pass into a hole  37  formed in a greater diameter tube section  35  end. The tube sections  35  are thereby releasably coupled into a pole that is to receive a paddle or oar head  38  fitted thereto, with a ball portion of detent  36  of a lower tube section passing into a hole  38   a  that is formed in a paddle neck  39 . The oar assembly is completed by installing a hand grip  40  onto the assembled tube sections  35  top end. Alternatively, a paddle handle  41  can be fitted to the assembled tube sections  35  top end to provide a paddle for use where the operator does not wish to row the water craft. For such oar or paddle handle,  40  or  41 , installation, the tube section  35  has a narrow diameter end that includes a ball detent, the ball thereof extending outwardly, with the paddle hand grip or oar handle including a larger diameter neck end to fit over the tube section  35  narrow end, and with the ball of the detent, to extend into a hole is which paddle handle or oar handle larger diameter neck. So arranged, by selection of a number of tube sections  35  for telescope coupling together, each to include a paddle head  38  fitted as a lower end thereto, and by coupling either an oar handle  40  or a paddle handle  41  to the opposite or top end, either a pair of oars or a paddle can be so formed for propelling the floatation device  19 . Where oars are to be so used, an oar lock  43  is provided for releasable coupling onto a side support bar  25   a  or  25   b , as shown in FIGS. 3,  5  and  5 A to allow a person to row the water craft. The oar lock  43 , as shown best in FIG. 5B, includes an arcuate base  44  whose undersurface is curved to the curve of the pontoon  15  and is for fitting under and extending across the side support bar  25   a  or  25   b , and has a rod  45  secured to the inner surface thereof for fitting through a hole formed through each web of the pack side support bars  25   a  or  25   b . The oar lock  43  includes stem  46  that has a center longitudinal threaded hole  47  formed therein for turning onto the threaded bolt  45  end drawing the base  44  and oar lock under surface  46   a  tightly onto the side support bar with a U-shaped open area  48  of which oar lock  43  to receive an oar fitted therein, as shown in FIG.  5 A. Also, while not shown in FIG. 2, the backpack  11  can contain other accessories such as straps, clamps, and the like, for use in assembling the floatation device  19 , and reconfiguring it into a bed, with or without a tent, as shown in FIGS. 6 through 8, within the scope of this disclosure. 
     Additionally, as shown in FIG. 2B , the pack frame  12  has been separated from the backpack  11  with the side and bottom pack support bars  25   a ,  25   b  and  26  facing upwardly from the flat back section  20 . The side pack support bars  25   a  and  25   b  are pivoted, as shown in FIG. 3, around the flat back section sides  20   a  to extend therefrom as outriggers such that curved portions thereof will each fit partially around an inflated pontoons  15 . To provide pack frame  12  reconfiguration, the ends of each of the U-shaped pack support bars  25   a  and  25   b  are each secured, at approximately right angles, to an outer surface of a short sleeve  50  that is fitted over to pivot around a long side of the flat back section  20  rectangular support  21 . Each sleeve includes holes  51  formed therethrough that align with a hole or holes formed through each of the sides  20   a , holes  51  to receive a pin, or the like, fitted therethrough to maintain the sides  25   a  and  25   b  in either a first position like that shown in FIGS. 1,  2 A and  2 B, where the sides  25   a  and  25   b  maintained over pack  11 , or a second position like that shown in FIGS. 3,  5 ,  5 A and  6 , where the sides  25   a  and  25   b  are rotated to an outrigger attitude to mount the pontoons  15  thereto. Alternatively, another coupling arrangement, such as an arrangement of ball type detents, for locking the side pack support bars  25   a  and  25   b  in either the backpack maintaining attitude or pontoon mounting configurations could be so used within the scope of this disclosure. 
     Shown in FIGS. 2A,  2 B,  3 ,  4 ,  5  and  5 A, and best in FIG. 4, the pack frame  12  top support bar  24  can be pivoted from its backpack  11  holding attitude, shown in FIG. 1, to a seat back configuration shown in broken lines in FIG. 4, and in FIGS. 3,  5  and  5 A, and the U-shaped outer section  26   a  thereof can be telescoped out to a fully extended attitude. In which extended attitude, as shown in FIGS. 6 through 8, the bottom support bar  26  and the outer section  26   a  thereof are in the plane of and extend planar from the flat back section  20 , with the outer section  26   a  to function as a foot portion of a sleeping platform  85  of FIG.  6 . To provide for the alternative top support bar  24  positioning to function as a seat back, as shown best in FIG. 4, the top support bar  24  ends each include a straight rod  54  that is telescoped into a collar  53  secured across an open end of each of the of tubular sides  52  of the U-shaped top section  24   a  of the top support bar  24 . The rods  54  travel through the collars  53 , telescoping into which tubular sides  52 , and are maintained therein by turning of set screws  53   a  into each collar  53  and into engagement in one of a plurality of spaced holes or openings  53   b  that are formed along the straight rods  54 , locking the straight sides and tubular sides  52  in place. Lower ends  55  of each of the straight rods  54  are fitted between parallel plates  56   a  of a double channel sections  56  that consists of parallel plates  56   a  separated by a center longitudinal wall  56   b , shown in broken lines, with the parallel plates  56   a  fitted onto each rectangular support  21  side, the wall  56   b  resting on the top of which side, and a pivot coupling of each top support bar rod  54  end  55  is provided by installing a pin  58  across the sides  56   a , passing through the bar rod  54  end  55 , providing a pivot coupling. So arranged, the top support bar  24  can be pivoted from a planar attitude with the rectangular support  21  to a seat back when configured as shown in FIG.  3 . The top support bar  24  is maintained or locked in its planar attitude by fitting a pin  59 , or like fastener, through a rear hole  60  formed through plates  56   a  to pass through hole  61  formed in the top support bar rod end  55 , and, with the top support bar  24  pivoted to a seat back attitude, the pin  59  is installed through hole  60  to act as a brace against top support bar end  55  surface, holding it in an erected attitude, as shown in broken lines in FIG.  4 . 
     As set out above, the top support bar  24  is capable of being positioned between a planar attitude where the pack frame  12  is configured to support a backpack  11  and for use as a top end portion of sleeping platform  85 , as shown in FIGS. 6 through 8. With the top support bar to be pivoted into a seat back attitude as shown in FIGS. 3,  4 ,  5  and  5 A. For safety, the top support bar  24  top section is preferably coated with a soft flexible material such as a foam cylinder, to function as a back or neck rest, and is the open area thereacross and can be fitted with a web or net, not shown, maintained thereover as a back or upper body support. The web or net, not shown, can be formed as by weaving horizontal and vertical strips into a mat or net, with the ends thereof to be passed around sides and between the top of which top support bar  24   a  and around the flat back section  20  rectangular support  21  top end  20   b , and the ends folded upon themselves and joined with snaps, or like fasteners. 
     Shown in FIGS. 2A,  2 B,  3 ,  5  and  5 A, the open area of the flat back section  20  rectangular support  21  is spanned by the upper back support  22  and lower torso support  23 . The upper back support  22  is preferably a flat rectangular section of a flexible material such as canvas, or the like, having side extensions  22   a  that extend from bottom corners and have slots  22   b  formed thereacross to receive straps  62  fitted therethrough and are looped around the flat back section  20  rectangular support  21  sides and are folded upon themselves and jointed, as by rivets or like fasteners, with top corners  22   c  formed as straps that are also looped around the flat back section sides  20   a  and connected, as by rivets. Further, with the pack frame  12  configured as water craft seat, straps  27   a  and  27   b  are also fitted through slots  22   b  to pass around and hold the pontoons  15  in place, as shown best in FIG.  3 . So arranged, a person will position their buttocks in the flexible upper back support  22  to paddle or row the floatation device  19 . Further, the lower torso support  23 , as shown in FIGS. 2A,  2 B and  3  is preferably a rectangular section formed from a stiff material such as wood, hard plastic, or the like, and is secured at its opposite bottom and top ends  23   a  and  23   b , respectively, onto the flat back section  20  rectangular support  21  sides to support the thighs of a person sitting in the upper back support  22 . 
     As shown in FIGS. 2A,  2 B, and  5 A, the bottom pack support bar  26  is like the top pack support bar  24 , as shown best in FIG. 4, except that support bar  26  is arranged on the opposite side of the flat back section  20  rectangular support  21  relative to the top pack support bar  24 . Shown best in FIG. 1, with the pack frame  12  mounting the backpack  11 , the bottom pack support bar  26  is pivoted rearwardly from the vertical to maintain a rolled foam mattress, and is planar to the flat back section  20  rectangular support  21  and beneath the bottom end  20   c  thereat in the attitude shown in FIGS. 3,  5  and  5 A. Like the top pack support bar  24 , the bottom pack support bar includes rod sides  68  that each have ends  66  and have like diameters to fit between spaced parallel plates  65  that have a pivot pin  69  fitted therethrough and through a hole, not shown, in each rod end  66 , providing a pivot coupling. The parallel plates  65 , in turn, are secured to the back section  20  rectangular support  21  sides and like the plates  56   a  of FIG. 4 that receive pin  59  fitted therethrough, a separate pin, not shown, may be fitted through which plates  65  and through a rod end  66  to brace against the side of the rod end  66  to maintain the bottom pack support bar  26  in a planar attitude to the back section  20  when the bottom pack support bar  26  is pivoted to the attitude shown in FIG.  1 . Further, as needed, the bottom pack support bar rods  68  can be supported, as with C clamps, not shown, or the like, to the flat back section  20  rectangular support  21  sides. Also, like the top pack support bar  24 , the bottom pack support bar preferably includes a U-Shaped top section  26   a  whose tubular sides  71  are to telescope over the upper ends of rod sides  68  to pass through collars  72  fixed to the open ends of sides  71 , with each collar  72  to include a bolt  73  turned into a collar threaded hole, the bolts to be turned into engagement with a surface of side rod  68 , fitting into one of a series of spaced depressions  74  formed therein, locking collar  72  to which rod side  65 , maintaining the U-shaped section  26   a  in its extended attitude, as shown in FIGS. 3,  5 , and  5 A and best in FIG.  3 . 
     In assembling the floatation device  19 , the inflated pontoons  15  are positioned on the ground to be spaced apart and parallel with the outer sleeves  17  of each pontoon  15  to receive the outwardly pivoted side pack support bars  25   a  and  25   b , respectively, positioned thereon. The curved portions of which pack support bars to fit closely to the pontoon shape, as shown in FIGS. 3,  5  and  5 A, and are held in place by passing straps  27   a  and  27   b  around the pontoons and support bars  25   a  and  25   b  and across the flat back section  20  rectangular support  21  sides fitting through the upper back support sides  22   a  and slots  22   b  and are held in place by buckles, not shown. To further assemble the floatation device  19 , the spacers  18  are positioned between the pontoon  15  front and rear ends and pairs of front and rear straps  28   b  and  28   a , respectively are fitted around the pontoon ends, are passed through lateral slots  18   a  formed in the ends of spacers  18  and are fitted through buckles, not shown. The bottom pack support bar  26  sides  68  are then pulled out of the collar  72  ends of the support bar U-shaped end  26   a  to a desired distance whereat each collar bolt  73  is turned to urge a bolt end into one of the spaced holes  74  formed along the sides  68 , locking the U-shaped end  26   a  in place, as shown in FIGS. 3,  5 , and  5 A. 
     As desired, a net or web, not shown, can then be installed between the bottom pack support bar  26  U-shaped end  26   a  and the flat back section  20  rectangular support  21  lower end  20   b . So arranged, the floatation device  19  is ready to be moved into water with a person seating themselves on the pack frame  12  that has been reconfigured in a seat, as described. The persons buttocks and upper thighs are positioned on, respectively, the upper back support  22  and lower torso support  23 , and their lower legs are supported on the flat back section rectangular support  21  end and their feet rest on the U-shaped end  26   a  of the bottom pack support bar  26 . 
     As set out above, the floatation device  19  can be moved through water by oars or with a paddle. Further, the floatation device  19  is light in weight and is easily moved onto land and can there be simply and easily reconfigured into a bed or sleeping platform  85 , as shown in FIG.  6 . Such reconfiguration involves repositioning, as set out above, the pack frame  12  top pack support bar  24  to extend outwardly in the plane of the flat back section  20  rectangular support  21 , forming a planar surface between the pontoons  15 . So arranged, the cot cover  29  can be fitted on top of the seat and extends between the spacers  18 . The cot cover connecting sides  29   a  are fitted around the rectangular flat back section  20  support  21  sides and each side  29   a  is folded back upon itself and is maintained thereat by joining snaps, or the like together. So arranged, with the cot cover ends  29   b  fitted around the spacers  18 , and folded upon themselves for joining with snaps, or the like, a sleeping platform  85  is formed. 
     Further, as shown in FIGS. 7 and 8, the pontoon outer sleeve  17  includes tabs  90  that are secured,as by sewing, at their ends  91  to the sleeve outer surfaces, near the pontoon ends. The tabs  90  include reinforced holes or grommets  92  that each receives an end of a flexible tent pole  93  of a tent frame  95  fitted therethrough. Which tent poles are preferably bent into arches to receive a section of a flexible tent material  95   a  fitted and maintained there over, as shown in FIG.  8 . The tent poles to be fitted through sleeves  96  that are sewn onto the tent material, suspending the tent material from the tent frame  95  covering the floatation device  19  as shown in FIG.  8 . The tent pole  93  ends  94  are urged into the ground whereon the floatation device sits and with a tent floor  97  positioned on the sleeping platform cot cover and can receive a mattress, sleeping bag, or the like, position thereon. Which tent may and preferably does include a closable front flap  98 , or the like, as shown in FIG. 8 that is open to reveal the tent interior. 
     Further, as required, anchor ropes, not shown, can be connected between front and rear tent ends for anchoring the tent ends to a rock, tree, or the like, and the tent poles  92  ends  93  can include points mounted thereto to facilitate the pole ends being urged into the ground. 
     While a preferred embodiment of my portable inflatable floatation device and features thereof have been shown and described herein, it should be understood that the present disclosure is made by way of example only and that variations and changes thereto are possible without departing from the subject matter shown herein as a best mode for carrying out the invention and a reasonable equivalency thereof as come within the scope of the following claims, which claims I regard as my invention.