Childproof closure

Claim 2

A childproof closure combination comprising a closure and a cooperative annular fitment, said annular fitment being adapted for encircling engagement about an associated container, said closure having an end panel and a depending peripheral skirt, means carried by said peripheral skirt, for securing said closure to an associated container, first cooperative means between and formed as portions of said peripheral skirt and said annular fitment for releasably interlockingly coupling the same to each other, second cooperative means between and formed as portions of said peripheral skirt and said annular fitment for uncoupling said first cooperative coupling means upon relative rotation between said closure and fitment, said second cooperative coupling means being defined by cam and cam follower means of said peripheral skirt and fitment, said cam and cam follower means being defined by a cam surface of said fitment opposing a cam follower surface of said peripheral skirt, and said cam and cam follower surfaces being disposed along a portion of the periphery of said fitment and peripheral skirt, respectively, and being circumferentially inclined whereby upon relative rotation between said fitment and closure said cam and cam follower surfaces create axial forces between said closure and fitment causing axial motion therebetween resulting in the uncoupling of said first cooperative coupling means.

Claim 3

The childproof closure combination as defined in claim 1 wherein said first cooperative coupling means is a bead of said periphEral skirt interlocked in a groove of said fitment.

Claim 4

The childproof closure combination as defined in claim 1 including means carried by said fitment for securing said fitment to an associated container, and said fitment securing means are a plurality of radially inwardly directed hollow resilient lugs carried by said fitment for preventing axial removal of said fitment from an associated container.

Claim 5

The childproof closure combination as defined in claim 2 wherein said groove in radial cross-section has a closed bottom portion of a size greater than a top entrance portion thereof.

Claim 6

The childproof closure combination as defined in claim 2 including means carried by said fitment for securing said fitment to an associated container, and said fitment securing means are a plurality of radially inwardly directed hollow resilient lugs carried by said fitment for preventing axial removal of said fitment from an associated container.

Claim 7

the childproof closure combination as defined in claim 4 including means carried by said fitment for securing said fitment to an associated container, and said fitment securing means are a plurality of radially inwardly directed hollow resilient lugs carried by said fitment for preventing axial removal of said fitment from an associated container.

Claim 8

A childproof closure combination comprising a closure and a cooperative annular fitment, said closure having an end panel and a peripheral skirt, means carried by said peripheral skirt for securing said closure to an associated container, first cooperative means between and formed as portions of said peripheral skirt and said annular fitment for interlockingly coupling the same to each other, second cooperative means between and formed as portions of said peripheral skirt and said annular fitment for uncoupling said cooperative coupling means upon relative rotation between said closure and said fitment, said cooperative coupling means being defined by a bead carried by said peripheral skirt interlocked with a groove in said fitment opening axially in a direction toward said end panel, said cooperative uncoupling means being defined by a cam of one of said peripheral skirt and fitment in cooperative circumferential sliding relationship with a portion of the other of said peripheral skirt and fitment, said cam being inclined circumferentially relative to said peripheral skirt and fitment, said portion also being a cam, one of said cams being defined by a notch in said peripheral skirt defining an axially inclined circumferentially extending cam surface of said closure, the other of said cams being defined by an axially inclined circumferentially extending cam surface of said fitment, and said cam surfaces are in mating like contoured relationship in the coupled condition of said closure and fitment whereby upon relative rotation therebetween in a predetermined direction said cam surfaces impart axial relative movement between said closure and fitment to cause uncoupling of said cooperative coupling means.

Claim 9

A childproof closure combination comprising a closure and a cooperative annular fitment, said closure having an end panel and a peripheral skirt, means carried by said peripheral skirt for securing said closure to an associated container, first cooperative means between and formed as portions of said peripheral skirt and said annular fitment for interlockingly coupling the same to each other, second cooperative means between and formed as portions of said peripheral skirt and said annular fitment for uncoupling said cooperative coupling means upon relative rotation between said closure and said fitment, said cooperative coupling means being defined by a bead carried by said peripheral skirt interlocked with a groove in said fitment opening axially in a direction toward said end panel, said cooperative uncoupling means being defined by a cam of one of said peripheral skirt and fitment in cooperative circumferential sliding relationship with a portion of the other of said peripheral skirt and fitment, said cam being inclined circumferentially relative to said peripheral skirt and fitment, said portion also being a cam, one of said cams being defined by a notch in said peripheral skirt defining an axially inclined circumferentially extending cam surface of said closure, the other of said cams being defined by an axially inclined circumferentially extending cam surface of said fitment, and said cam surfaces are in mating like contoured relationship in the coupled condition of said closure and fitment whereby upon relative rotation therebetween in a predetermined direction said cam surfaces impart axial relative movement between said closure and fitment to cause uncoupling of said cooperative coupling means.

Claim 10

The childproof closure combination as defined in claim 7 including means carried by said fitment for securing said fitment to an associated container, and said fitment securing means are a plurality of radially inwardly directed resilient lugs carried by said fitment for preventing axial removal of said fitment from an associated container.

Claim 11

A childproof closure combination comprising a closure and a cooperative annular fitment, said closure having an end panel and a peripheral skirt, means carried by said peripheral skirt for securing said closure to an associated container, first cooperative means between and formed as portions of said peripheral skirt and said annular bitment for interlockingly coupling the same to each other, second cooperative means between and formed as portions of said peripheral skirt and said annular fitment for uncoupling said cooperative means upon relative rotation between said closure and said fitment, said cooperative uncoupling means being definEd by a cam of one of said peripheral skirt and fitment in cooperative circumferential sliding relationship with a portion of the other of said peripheral skirt and fitment, said cam being inclined circumferentially relative to said peripheral skirt and fitment, said portion also being a cam, one of said cams being defined by a notch in said peripheral skirt defining an axially inclined circumferentially extending cam surface of said closure, the other of said cams being defined by an axially inclined circumferentially extending cam surface of said fitment, and said cam surfaces are in mating like contoured relationship in the coupled condition of said closure and fitment whereby upon relative rotation therebetween in a predetermined direction said cam surfaces impart axial relative movement between said closure and fitment to cause uncoupling of said cooperative coupling means.

Claim 12

A childproof closure combination comprising a closure and a cooperative annular fitment, said closure having an end panel and a peripheral skirt, means carried by said peripheral skirt for securing said closure to an associated container, first cooperative means between and formed as portions of said peripheral skirt and said annular bitment for interlockingly coupling the same to each other, second cooperative means between and formed as portions of said peripheral skirt and said annular fitment for uncoupling said cooperative means upon relative rotation between said closure and said fitment, said cooperative uncoupling means being definEd by a cam of one of said peripheral skirt and fitment in cooperative circumferential sliding relationship with a portion of the other of said peripheral skirt and fitment, said cam being inclined circumferentially relative to said peripheral skirt and fitment, said portion also being a cam, one of said cams being defined by a notch in said peripheral skirt defining an axially inclined circumferentially extending cam surface of said closure, the other of said cams being defined by an axially inclined circumferentially extending cam surface of said fitment, and said cam surfaces are in mating like contoured relationship in the coupled condition of said closure and fitment whereby upon relative rotation therebetween in a predetermined direction said cam surfaces impart axial relative movement between said closure and fitment to cause uncoupling of said cooperative coupling means.