Collapsible catamaran

Claim 1

A collapsible catamaran, which comprises: a. a rectangular shaped frame having a pair of parallel sides and a pair of parallel ends; b. four union elbow coupling members joining said sides and said ends together; c. a pair of parallel pontoons, each said pontoon having a forward section with a forward tapered end and a rearward section; d. a locking means for joining said forward section to said rearward section of each said pontoon, each said locking means including a cylindrically shaped rod affixed centrally onto a forward face of said rearward section, a pin member affixed perpendicularly onto a sidewall of said cylindrically shaped rod, a sleeve member partly embedded into a rear end of said forward section, a tension spring contained in said sleeve member, a sidewall of an exposed portion of said sleeve member having a J-shaped slot therein, said cylindrically shaped rod inserting into said sleeve member, said pin member slidably contained and locking in said J-shaped slot, and said tension spring engaging said rod within said sleeve member; e. a pair of tubular members extending upwardly from each said pontoon, each said tubular member having a transverse hole therethrough, each said tubular member communicating with one of said coupling members; and f. a plurality of chain members having end pin elements attached to one end thereof, each said chain member having its other end fixed to a coupling member, each said pin element being insertable into one of said transverse holes in a respective tubular member, when said tubular member is inserted into said coupling member to join the frame and pontoons together.