Oral inflation valve

Claim 1

A MANUALLY RELEASABLE FLUID CHECK VALVE HAVING AN OUTER BODY, A LONGITUDINALLY DISPOSED PASSAGE EXTENDING THROUGH THE VALVE BODY, SAID BODY HAVING AN ANNULAR RADIALLY INWARDLY EXTENDING FLANGE THEREIN, SAID FLANGE HAVING A CENTRAL OPENING THERETHROUGH WHICH FORMS A PART OF THE LONGITUDINAL PASSAGE THROUGH THE BODY, SAID FLANGE HAVING AN ANNULAR VALVE SEAT AT ITS REAR END, AN AXIALLY RECIPROCABLE VALVE ELEMENT HAVING A STEM OF SMALLER DIAMETER THAN THE OPENING THROUGH THE FLANGE EXTENDING CENTRALLY THERETHROUGH, SEALING MEANS ON THE REAR END OF THE STEM FORMING AN ENLARGED HEAD THEREON OVERLYING AN ADAPTED SEALINGLY TO COOPERATE WITH THE SEAT IN THE FLANGE, MEANS ON THE FORWARD END OF THE STEM FORWARDLY OF THE FLANGE FOR GUIDING AND LOCATING THE FORWARD END OF THE STEM AXIALLY WITH RESPECT TO THE PASSAGE THROUGH THE VALVE BODY, THE MEANS FOR LOCATING AND GUIDING THE FORWARD END OF THE STEM OF THE VALVE ELEMENT COMPRISING AXIALLY EXTENDING ANGULARLY SPACED RADIAL WINGS ON THE STEM, THE OUTER ENDS OF THE WINGS IN ONE TRANSVERSE ZONE THEREOF SLIDABLY ENGAGING THE WALL OF THE PASSAGE IN THE VALVE BODY, THE PORTIONS OF THE WINGS IN SAID TRANSVERSE ZONE THEREOF FORMING A PLURALITY OF GENERALLY SECTOR-SHAPED FLUID CONDUCTING A PASSAGES THEREBETWEEN, THE REAR ENDS OF THE WINGS HAVING A RADIAL HEIGHT WHICH SOMEWHAT EXCEEDS THE RADIUS OF THAT OF THE FORWARD END OF THE CENTRAL OPENING THROUGH THE FLANGE A COIL COMPRESSION SPRING INTERPOSED BETWEEN THE FLANGE AND THE STEM GUIDING MEANS, WHEREBY THE VALVE IS NORMALLY CLOSED BUT MAY BE OPENED BY THRUSTING THE VALVE ELEMENT REARWARDLY TO REMOVE THE SEALING MEANS ON THE REAR OF THE FROM THE SEAT IN THE FLANGE, MEANS ON THE FLANGE AND THE STEM FOR STOPPING THE TRAVEL OF THE RECIPROCABLE VALVE ELEMENT IN A REARWARD DIRECTION, SAID LAST NAMED MEANS COMPRISING AN ANNULAR SURFACE ON THE FORWARD END OF THE FLANGE AND A SURFACE AT THE REAR END OF EACH OF THE WINGS, SAID SURFACES CONFRONTING EACH OTHER AND EXTENDING TRANSVERSELY TO THE AXIAL EXTENT OF THE STEM AND THE PASSAGE THROUGH THE BODY, PARTS BEING SO CONSTRUCTED AND ARRANGED THAT SAID CONFRONTING SURFACES ABUT EACH OTHER WITH APPRECIABLE SPACING BETWEEN SUCCESSIVE TURNS OF THE SPRING WHEN THE VALVE ELEMENT LIES IN ITS REARMOST, FULLY OPEN POSITION.