Inflatable air mattress

Claim 1

A RESILIENT MATTRESS, COMPRISING A PLURALITY OF LONGITUDINALLY EXTENDING CELLS DISPOSED SIDE BY SIDE RELATION AND BEING RELEASABLY INTERCONNECTED ALONG ADJACENT LONGITUDINAL SURFACE PORTIONS THEREOF TO ENABLE CELLS TO BE INTERCHANGED ONE FOR ANOTHER AND ALSO TO ENABLE THE TRANSVERSE DIMENSION OF THE MATTRESS TO BE SELECTIVELY ALTERED, SAID CELLS BEING RESPECTIVELY EQUIPPED ALONG EACH OF SUCH LONGITUDINAL SURFACE PORTIONS THEREOF WITH FASTENER STRUCTURE FOR EFFECTING SUCH RELEASABLE INTERCONNECTION OF SAID CELLS, AND THE FASTENER STRUCTURES CARRIED BY ANY ONE CELL ALONG THE RESPECTIVE LONGITUDINAL SURFACE PORTIONS THEREOF BEING COMPLEMENTARY AND HAVING SURFACE PORTIONS MENTS INTERLOCKINGLY CONNECTED WITH THE CORRESPONDING ELEMENTS OF THE ASSOCIATED FASTENER STRUCTURE OF THE CELL ADJACENT THERETO, SAID COOPERATIVE ELEMENTS BEING RESISTIVE OF SEPARATION TENDING TO BE ENFORCED THEREON BY APPLICATION OF FORCE THERETO IN THE GENERAL PLANE OF SAID MATTRESS BUT BEING SUSCEPTIBLE OF READY SEPARATION BY APPLICATION OF FORCE THERETO IN A DIRECTION GENERALLY NORMAL TO SUCH PLANE, EACH PAIR OF INTERLOCKING CONNECTED FASTENER STRUCTURES BEING DISPOSED INTERMEDIATE THE EDGES OF THE CELLS CORRESPONDING TO THE TOP AND BOTTOM OF SAID MATTRESS AND EACH SUCH PAIR OF CONNECTED FASTENER STRUCTURES DEFINING WITH ASSOCIATED CELLS AND I-BEAM-TYPE CONFIGURATION IN WHICH THE ADJACENT CELLS ARE SPACED FROM EACH OTHER BY THE INTERVENING FASTENER STRUCTURE, SUCH INTERCONNECTED FASTENER STRUCTURES IN COOPERATION WITH THE ASSOCIATED CELLS BEING EFFFECTIVE TO STIFFEN THE MATTRESS AS WELL AS INTERCONNECT THE CELLS.