Dispenser-container

Claim 1

A DISPENSER-CONTAINER WITH SIFTER TOP WHICH COMPRISES AN ENTIRELY BLOW-MOLDED PLASTIC CONTAINER HAVING A CYLINDRICAL NECK PORTION, AN EXTERNAL SEALING SURFACE EXTENDING DOWNWARDLY ALONG THE OUTSIDE OF SAID NECK PORTION, AND A FIRST RETAINING MEANS ASSOCIATED WITH SAID SEAL ING SURFACE SPACES AT A GIVEN SELECTED LINEAR DIMENSION AXIALLY DOWNWARDLY FROM THE TOP OF SAID NECK PORTION; A CYLINDRICAL INNER CAP HAVING A TOP WALL DISPENSER PORTION EXTENDING CONVEX OUTWARDLY, A RESILIENT RING PORTION INTEGRAL WITH THE TOP WALL PORTION AND A SECOND RETAINING MEANS INTEGRAL WITH SAID RING PORTION AND COOPEATING WITH SAID FIRST RETAINING MEANS TO PREVENT AXIAL DISPLACEMENT OF SAID CAP OFF SAID CONTAINER NECK, SAID RESILIENT RING PORTION HAVING AN INNER SURFACE WHOSE RADIAL DIMENSION PROVIDES A RADIAL INTERFERENCE FIT WITH THE SEALING SURFACE OF THE CONTAINER NECK SO AS TO GRIP SAID CONTAINER NECK AND PREVENT RELATIVE ROTATION BETWEEN SAID NECK AND SAID INNER CAP, AND WHOSE AXIAL DIMENSION ALONG SAID INNER SURFACES IS SUFFICIENT TO ACCOMMODATE SAID SELECTED LINEAR DIMENSION OF THE CONTAINER NECK BETWEEN THE TOP EDGE THEREOF AND SAID FIRST RETAINING MEANS PLUS ANY VARIATION IN SUCH DIMENSION NORMALLY TO BE EXPECTED FROM THE BLOWMOLDING OPERATION; AND A CYLINDRICAL OUTER CAP COAXIALLY DISPOSED WITH RESPECT TO SAID INNER CAP AND EQUIPPED WITH A TOP WALL DISPENSER PORTION PRESENTING A CENTRALLY DISPOSED TOP WALL SECTION OF GIVEN THICKNESS SPACED FROM THE UNDERLYING TOP WALL PORTION OF THE INNER CAP AND AN OUTER MARGINAL PORTION OF GREATER THICKNESS HAVING A BOTTOM SURFACE COMPLEMENTARY TO AND DISPOSED IN CONTACT WITH A CORRESPONDING OUTWARDLY CONVEX SURFACE PORTION ON THE TOP WALL PORTION OF THE INNER CAP SO AS TO FORM SEALING MEANS THEREWITH, DISPENSING OPENINGS CORRESPONDINGLY DISPOSED AND ANGULARLY SPACED BOTH IN THE THICKER MARGINAL PORTION OF SAID OUTER TOP WALL DISPENSER PORTION AND IN THE INNER TOP WALL DISPENSER PORTION AND ADAPTED TO BE MOVED INTO AWND OUT OF REGISTRY UPON RELATIVE ROTATION OF SAID INNER AND OUTER CAP MEMBERS, A CYLINDRICAL RING PORTION EXTENDING IN AN AXIAL DIRECTION DOWNWARDLY FROM SAID OUTER TOP WALL DISPENSER PORTION AND PRESENTING AN INTERNAL SURFACE LOCATED ADJACENT AND RELATIVELY ROTATABLE WITH RESPECT TO AN EXTERNAL SURFACE ON THE RING PORTION OF THE INNER CAP, AND POSITIONING MEANS ON SAID RING PORTION ACTING SUBSTANTIALLY UNIFORMLY AROUND THE PERIPHERY OF SAID INNER CAP FOR MAINTAINING THE SEALING SURFACE MEANS OF SAID OUTER AND INNER CAP MEMBERS RESILIENTLY AGAINST AXIAL MOVEMENT OUT OF SEALING CONTACT THROUGHOUT THE RELATIVE ROTATION OF SAID INNER AND OUTER CAP MEMBERS TO MOVE THE DISPENSING OPENINGS THEREOF INTO AND OUT OF REGISTRY.