Nursing bottle

Claim 1

IN A NURSING UNIT COMPRISING AN ELONGATED TUBULAR CONTAINER HOLDER HAVING AN OPEN END ADAPTED TO BE CLOSED BY A NIPPLE POSITIONED THEREON, A DISPOSABLE FLEXIBLE OPENENDED CONTAINER HAVING AN UPPER MARGINAL PORTION FOLDED OUTWARDLY AND DOWNWARDLY OVER THE OUTSIDE SURFACE OF THE NIPPLE-ENGAGING END OF SAID HOLDER, AND A NIPPLE HAVING A PERIPHERAL SKIRT PORTION ADAPTED TO CLAMP THE UPPER MARGINAL PORTION OF SAID CONTAINER TO THE OUTER SURFACE OF SAID HOLDER, THE IMPROVEMENT WHICH COMPRISES PROVIDING SAID HOLDER WITH PERIPHERAL GROOVE IN THE OUTSIDE SURFACE THEREOF FORMING AN UPPER RIGHT ANGLED SHOULDER AND A LOWER PERIPHERAL SHOULDER, A THICKENED PORTION ON THE LOWER PORTION OF SAID NIPPLE SKIRT PRESENTING A RIGHT ANGLED SHOULDER ENGAGING IN SAID GROOVE AND COOPERATING WITH THE RIGHT ANGLED SHOULDER ON SAID CONTAINER HOLDER, SAID THICKENED PORTION BEING SNUGLY RECEIVED IN AND SUBSTANTIALLY COMPLETELY FILLING SAID PERIPHERAL GROOVE, THE LOWER SHOULDER OF SAID HOLDER FORMING A POSITIVE STOP FOR POSITIONING THE NIPPLE, AND THE UPPER SHOULDER OF SAID HOLDER ENGAGING THE TOP OF THE THICKENED PORTION OF SAID NIPPLE SKIRT AND EXTENDING INTO AN ANNULAR GROOVE IN THE UPPER PORTION OF SAID NIPPLE SKIRT THEREBY PROVIDING A POSITIVE LOCKING ACTION FOR THE NIPPLE, THE OUTWARDLY AND DOWNWARDLY TURNED PORTION OF THE FLEXIBLE CONTAINER BEING POSITIVELY CLAMPED PERIPHERALLY BETWEEN THE HOLDER AND THE NIPPLE ABOVE THE LOWER SHOULDER OF SAID HOLDER, THE DEPTH OF SAID PERIPHERAL GROOVE ON THE HOLDER BEING SUFFICIENT SO THAT ONLY A MINOR PORTION OF THE BOTTOM EDGE OF THE NIPPLE SKIRT PROJECTS BEYOND THE OUTER SURFACE OF THE HOLDER AROUND ITS PERIPHERY ADJACENT SAID LOWER SHOULDER.