Anti-splash guard for drinking receptacle

Claim 1

IN A STRUCTURE FOR THE DESCRIBED PURPOSE, IN COMBINATION WITH A DOWNWARDLY TAPERING RECEPTACLE OPEN AT THE TOP AND USED FOR DRINKING A LIQUID CONTAINED IN THE RECEPTACLE, A DISC FITTING IN SAID OPEN END OF THE RECEPTACLE, THE DISC BEING FORMED WITH A HEAD WALL WHICH BEARS BY A RIM PORTION THEREOF AGAINST THE INTERIOR WALL OF THE RECEPTACLE AND HAVING AN ANNULAR SKIRT DEPENDING FROM THE HEAD WALL IN INWARDLY SPACED RELATION TO SAID BEARING RIM CONCENTRIC AND PARALLEL WITH THE AXIAL LINE OF THE RECEPTACLE, THUS CONVERGING TOWARD THE TAPERED WALL OF THE RECEPTACLE AND WITH THE LATTER PROVIDING AN UPWARDLY EXPANDING SPACE EXTERIORLY OF THE SKIRT, SAID SPACE ACTING AS A SURGE CHAMBER THROUGH WHICH LIQUID PASSES WHEN A USER TILTS THE RECEPTACLE INCIDENT TO DRINKING THEREFROM, THE DISC BEING SO FORMED THAT OPENINGS ARE PROVIDED ALONG BOTH THE BOTTOM AND THE TOP OF THE DISC THROUGHOUT THE CIRCUMFERENCE THEREOF FOR THE INFLOW OF LIQUID TO THE CHAMBER AND THE OUTFLOW THEREFROM TO THE USER, THE STRUCTURE BEING CHARACTERIZED IN THAT THE AMOUNT OF LIQUID WHICH FLOWS TO THE USER UPON A NORMAL TILTING OF THE RECEPTACLE HAS SUBSTANTIAL VOLUME BUT REPRESENTS THE ACCUMULATION OF A CONSIDERABLE NUMBER OF STREAMS ENTERING THE CHAMBER WHICH INDIVIDUALLY SUPPLY ONLY A MINISCULE FRACTION OF SUCH ACCUMULATION.