Safety closure for containers

Claim 2

In a safety closure for containers having a threaded neck, the combination comprising: a. an inner, generally cup-shaped closure having a circular, flat top wall and an integral, cylindrical skirt depending from said top wall, i. the interior wall of said skirt being provided with threads adapted to engage said threads on the neck of said container, ii. the exterior wall of said skirt being provided with a plurality of recesses adjacent its lower end; and b. an outer, generally cup-shaped overclosure received over said inner closure, said overclosure having a circular, flat top wall and an integral skirt depending from said top wall, i. said skirt being provided with opposed sets of spaced apart slits in the lower portion thereof, said slits defining opposed, flexible tabs, said tabs being provided with a plurality of inwardly projecting, vertical projections on their inner surfaces adapted to engage said recesses on said skirt of said inner closure upon application of inwardly directed pressure to said tabs, ii. means coupling said outer closure to said inner closure, said means permitting free rotation of said outer closure on said inner closure.

Claim 3

In a safety closure for containers having a threaded neck, the combination comprising: a. an inner, generally cup-shaped closure having a circular, flat top wall and an integral, cylindrical skirt depending from said top wall, i. the interior wall of said skirt being provided with threads adapted to engage said threads on the neck of said container, ii. the exterior wall of said skirt being provided with an upper section having a smooth surface, a lower section having a plurality of closely spaced vertical projections on its surface, and an outwardly extending annular bead positioned between said upper and lower section; and b. an outer, generally cup-shaped overclosure received over said inner closure, said overclosure having a circular, flat top wall and an integral skirt depending from said top wall, i. said skirt being provided with opposed sets of spaced apart slits in the lower portion thereof, said slits defining opposed, flexible tabs, said tabs being provided with a plurality of inwardly projecting, vertical projections on their inner surfaces adapted to engage said recesses on said skirt of said inner closure upon application of inwardly directed pressure to said tabs, ii. said skirt being provided on its interior sidewall with semi-circular, inwardly projecting beads extending between said tabs, said beads adapted to engage said outwardly projecting annular bead provided on said inner closure to retain said inner closure within said outer closure.

Claim 4

In a safety closure for containers having a threaded neck, the combination comprising: a. an inner, generally cup-shaped closure having a circular, flat top wall and an integral, cylindrical skirt depending from said top wall, i. the interior wall of said skirt being provided with threads adapted to engage said threads on the neck of said container, ii. the exterior wall of said skirt being provided with an upper section having a smooth surface, a lower section having a plurality of closely spaced vertical projections on its surface, and an outwardly extending annular bead positioned between said upper and lower section; and b. an outer, generally cup-shaped overclosure received over said inner closure, said overclosure having a circular, flat top wall and an integral skirt depending from said top wall, i. said skirt being provided with opposed sets of spaced apart slits in the lower portion thereof, said slits defining opposed, flexible tabs, said tabs being provided with a plurality of inwardly projecting, vertical projections on their inner surfaces adapted to engage said recesses on said skirt of said inner closure upon application of inwardly directed pressure to said tabs, ii. said skirt being provided on its interior sidewall with semi-circular, inwardly projecting beads extending between said tabs, said beads adapted to engage said outwardly projecting annular bead provided on said inner closure to retain said inner closure within said outer closure.

Claim 5

In the safety closure of claim 2 wherein said inner closure is formed from a substantially rigid material and said outer closure is formed from a substantially flexible material.

Claim 6

In the safety closure of claim 2 wherein said outer closure is provided with an outwardly tapered interior sidewall below said semi-circular, inwardly projecting beads.

Claim 7

In a safety closure for containers having a threaded neck, the combination comprising: a. an inner, generally cup-shaped closure having a circular, flat top wall and an integral, cylindrical skirt depending from said top wall, i. the interior wall of said skirt being provided with threads adapted to engage said threads on the neck of said container, ii. the exterior wall of said skirt being provided with an upper section having a smooth surface, a lower section having an outwardly extending annular band provided with opposed sets of slots, iii. the top surface of said top wall being provided with a plurality of integrally formed first projections having upwardly extending front faces and beveled top surfaces which merge into said top wall; and b. an outer, generally cup-shaped overclosure received over said inner closure, said over-closure having a circular, flat top wall and an integral skirt depending from said top wall, i. said skirt being provided with opposed sets of spaced apart slits in the lower portion thereof, said slits defining opposed, flexible tabs, said tabs being provided with a plurality of inwardly projecting vertical projections on their inner surfaces adapted to engage said slots on said exterior sidewall of said inner closure skirt upon application of inwardly directed pressure To said tabs, ii. said skirt being provided on its interior sidewall with semi-circular, inwardly projecting beads extending between said tabs, said beads adapted to abut the bottom of said skirt of said inner closure to retain said inner closure within said outer closure, iii. the bottom surface of said top wall being provided with a plurality of integrally formed second projections having downwardly extending front faces and beveled top surfaces which merge into said top wall, said second projections being oriented opposite said first projections and adapted to engage said first projections to rotate said inner closure upon rotation of said outer closure to attach said safety closure to said container.

Claim 8

In a safety closure for containers having a threaded neck, the combination comprising: a. an inner, generally cup-shaped closure having a circular, flat top wall and an integral, cylindrical skirt depending from said top wall, i. the interior wall of said skirt being provided with threads adapted to engage said threads on the neck of said container, ii. the exterior wall of said skirt being provided with an upper section having a smooth surface, a lower section having an outwardly extending annular band provided with opposed sets of slots, iii. the top surface of said top wall being provided with a plurality of integrally formed first projections having upwardly extending front faces and beveled top surfaces which merge into said top wall; and b. an outer, generally cup-shaped overclosure received over said inner closure, said over-closure having a circular, flat top wall and an integral skirt depending from said top wall, i. said skirt being provided with opposed sets of spaced apart slits in the lower portion thereof, said slits defining opposed, flexible tabs, said tabs being provided with a plurality of inwardly projecting vertical projections on their inner surfaces adapted to engage said slots on said exterior sidewall of said inner closure skirt upon application of inwardly directed pressure To said tabs, ii. said skirt being provided on its interior sidewall with semi-circular, inwardly projecting beads extending between said tabs, said beads adapted to abut the bottom of said skirt of said inner closure to retain said inner closure within said outer closure, iii. the bottom surface of said top wall being provided with a plurality of integrally formed second projections having downwardly extending front faces and beveled top surfaces which merge into said top wall, said second projections being oriented opposite said first projections and adapted to engage said first projections to rotate said inner closure upon rotation of said outer closure to attach said safety closure to said container.

Claim 9

In the safety closure of claim 5 wherein said first and said second projections have arcuate shaped sidewalls.

Claim 10

In the safety closure of claim 5 wherein said semi-circular beads are spaced from said bottom of said skirt of said inner closure to permit limited axial movement of said outer closure over said inner closure whereby sliding engagement is maintained between said first and said second projections when said outer cover is rotated in the direction for removing said safety closure from said container without applying pressure to said tabs.