Closure for collapsible tubes or bottles

Claim 1

A CLOSURE ASSEMBLY FOR RECEPTACLES OF THE TYPE HAVING AN ELONGATED OPEN ENDED NECK WITH A LATERAL DISCHARGE ORIFICE INTERMEDIATE THE ENDS OF SAID NECK; SAID CLOSURE ASSEMBLY COMPRISING A CLOSURE MEMBER DISPOSED ENTIRELY OUTSIDE OF SAID NECK AND INCLUDING A SLEEVE SLIDABLY EMBRACING SAID NECK, AN END WALL CLOSING THE UPPER END OF SAID SLEEVE AND OVERLYING THE OPEN END OF SAID NECK WHICH IS REMOTE FROM SAID RECEPTACLE, SAID SLEEVE HAVING INTERMEDIATE ITS ENDS DISCHARGE OPENINGS OF DIFFERENT CROSSSECTIONAL AREAS INDIVIDUALLY SELECTIVELY REGISTERABLE WITH SAID DISCHARGE ORIFICE, SAID SLEEVE BEING MOUNTED UPON SAID NECK FOR STRAIGHT LINE SLIDING MOVEMENT FOR SELECTIVELY PLACING SAID OPENINGS AND ORIFICE INTO AND OUT OF REGISTRATION, RETAINING MEANS ON SAID SLEEVE AND NECK FOR RELEASABLY BUT IMMOVABLY SECURING SAID SLEEVE TO SAID NECK AND RETAINING SAID OPENINGS AND ORIFICE OUT OF REGISTRATION WITH SAID ORIFICE BEING CLOSED BY SAID SLEEVE, A CIRCUMFERENTIALLY EXTENDING OUTWARDLY PROJECTING FLANGE ON SAID SLEEVE, RESTRAINING MEANS ENGAGEABLE BY SAID FLANGE FOR LIMITING SLIDING MOVEMENT OF SAID SLEEVE UPON SAID NECK AND PREVENTING MOVEMENT OF SAID SLEEVE TO AN ORIFICE REGISTERING POSITION AFTER DISCONNECTION OF SAID RETAINING MEANS, A RETAINING CAP REMOVABLY SECURED TO SAID RECEPTACLE AND SURROUNDING AND RETAINING SAID SLEEVE UPON SAID NECK, SAID CAP HAVING AN END WALL WITH AN OPENING THROUGH WHICH SAID SLEEVE IS MOVABLE, SAID RESTRAINING MEANS INCLUDING AN INWARDLY PROJECTING MEMBER ON SAID RETAINING CAP ADJACENT TO AND BELOW ITS END WALL AND IN THE PATH OF STRAIGHT LINE SLIDING MOVEMENT OF SAID FLANGE, SAID FLANGE HAVING A NOTCH REGISTERABLE WITH SAID MEMBER FOR PASSAGE THEREBY UPON ROTATION OF SAID SLEEVE, THE DISTANCE BETWEEN SAID MEMBER AND SAID END WALL BEING SUBSTANTIALLY EQUAL TO THE THICKNESS OF THE FLANGE WHEREUPON FURTHER ROTATION OF SAID FLANGE AFTER PASSING SAID MEMBER WILL CAUSE SAID FLANGE TO BE HELD CAPTIVE BETWEEN SAID MEMBER AND END WALL, THE LAST NAMED POSITION OF SAID FLANGE DEFINING AN ORIFICE REGISTERING POSITION OF SAID SLEEVE AND NECK.