Hydrotherapeutic mat with air inlet means and means facilitating rolling into a cylinder

Claim 1

A HYDROTHERAPEUTIC TREATMENT MAT COMPRISING A BODY PORTION FORMED ENTIRELY OF RUBBER-LIKE MATERIAL WHICH MAY BE READILY FLEXED, FOLDED OR ROLLED TO ASSUME VARIOUS SHAPES, SAID MAT BODY PORTION COMPRISING COEXTENSIVE SEPARATED TOP AND BOTTOM LAYERS WHICH ARE SUBSTANTIALLY INTEGRALLY JOINED AT NARROW MARGINAL AREAS ONLY AROUND THE ENTIRE MARGINAL EDGE OF THE MAT, A MULTIPLICITY OF UNIFORMLY SPACED SUBSTANTIALLY PARALLEL NARROW UPSTANDING RIBS ON THE TOP FACE OF SAID TOP LAYER EXTENDING SUBSTANTIALLY FOR THE ENTIRE WIDTH OF THE MAT IN ONE DIRECTION AND RENDERING THE MAT EASY TO ROLL UP INTO A CYLINDER WHOSE AXIS IS PARALLEL TO SAID RIBS, SAID TOP LAYER HAVING A MULTIPLICITY OF SMALL AIR OUTLET OPENINGS ARRANGED BETWEEN SAID RIBS IN A PATTERN WHICH EXTENDS OVER THE MAJOR PORTION OF THE AREA OF THE MAT, SAID TOP LAYER ALSO HAVING A RELATIVELY LARGE AIR INLET OPENING FORMED THEREIN ADAPTED FOR CONNECTION WITH A SUITABLE HOSE, AND A MULTIPLICITY OF SPACER ELEMENT ARRANGED BETWEEN SAID TOP AND BOTTOM LAYERS IN FIXED RELATION THERETO AND BEING WIDELY SPACED BETWEEN SAID LAYERS SO AS NOT TO OBSTRUCT FREE CIRCULATION OF AIR BETWEEN SAID LAYERS, SAID SPACER ELEMENTS MAINTAINING SAID LAYERS, SAID SPACER ELEMENTS MAINTAINFROM DISTANCE OVER SUBSTANTIALLY THE ENTIRE AREA OF THE MAT.