Closure for containers

Claim 1

A CLOSURE CONSTRUCTION FOR A CONTAINER, COMPRISING IN COMBINATION: (A) A CLOSURE BODY HAVING A MAIN AXIS AND ALSO HAVING A DISCHARGE PASSAGE, (B) A SCREW CAP TURNABLY CARRIED ON SAID CLOSURE BODY AND MOVABLE AXIALLY THEREON BETWEEN AN EXTENDED NON-SEALING POSITION AND ANY OF A PLURALITY OF DIFFERENT RETRACTED SEALING POSITIONS, SAID DIFFERENT POSITIONS BEING CHARACTERIZED BY THE CAP BEING DISPOSED AT DIFFERENT LOCATIONS ALONG THE SAID MAIN AXIS OF THE BODY, (C) COOPERABLE TELESCOPING ANNULAR SEALING MEANS ON SAID CLOSURE BODY AND SCREW CAP, EXERTING MAINLY RADIAL PRESSURES TO FULLY SEAL THE CLOSURE BODY AGAINST DISPENSING WHEN THE CAP IS IN ANY ONE OF THE SAID PLURALITY OF SEALING POSITIONS, AND (D) TWO COOPERABLE HELICAL THREAD MEANS RESPECTIVELY ON THE CLOSURE BODY AND CAP, FOR AXIALLY SHIFTING THE LATTER TO ANY OF SAID SEALING POSITIONS IN RESPONSE TO ITS BEING TURNED, AT LEAST ONE OF SAID THREAD MEANS BEING YIELDABLE TO ENABLE THE OTHER THREAD MEANS TO BE FORCED PAST IT WHEREBY THE CAP MAY BE AXIALLY SNAPPED ONTO THE CLOSURE BODY TO ANY ONE OF THE SAID RETRACTED POSITIONS WITHOUT REQUIRING IT TO BE TURNED.