Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
111 words
A sterile pack comprising, in combination, a moulded plastics container to which is attached a moulded plastics cap, (i) the container being integrally sealed at its upper end, the neck of the container being provided with thread and an annular portion of the neck above the thread being frangible, (ii) the cap having a thread complementary with the container thread and means for contacting the container above the said annular portion, characterised in that the thread has a pitch of between 0.05 and 0.095 turns per millimeter per millimeter of thread diameter, and that the diameter of the frangible portion of the container is at most 80% of the thread diameter.
Claim 2
Dependent Claim
111 words
A sterile pack comprising, in combination, a moulded plastics container to which is attached a moulded plastics cap, (i) the container being integrally sealed at its upper end, the neck of the container being provided with thread and an annular portion of the neck above the thread being frangible, (ii) the cap having a thread complementary with the container thread and means for contacting the container above the said annular portion, characterised in that the thread has a pitch of between 0.05 and 0.095 turns per millimeter per millimeter of thread diameter, and that the diameter of the frangible portion of the container is at most 80% of the thread diameter.
Claim 3
Dependent Claim
43 words
A pack as claimed in claim 1 wherein the thread has a pitch of at least 0.08 turns per millimeter per millimeter of thread diameter and the diameter of the frangible portion of the container is at most 75% of the thread diameter.
Claim 4
Dependent Claim
50 words
A pack as claimed in claim 1 or claim 2 wherein the cap skirt is provided with a pilferproof ring which prevents removal of the cap from the container until the pilferproof ring is removed from the cap along a line of weakness joining said ring to said cap skirt.
Claim 5
Dependent Claim
44 words
A pack as claimed in claim 3 wherein the inside surface of the pilferproof ring is shaped complementarity to the opposing surface of the contairier neck,-to present abutting surfaces of the ring and container neck and prevent unscrewing of the cap from the container.
Claim 6
Dependent Claim
25 words
A pack as claimed in claim 4 wherein said abutting surfaces comprise lugs or teeth formed on the pilferproof ring and on the container neck.
Claim 7
Dependent Claim
25 words
A pack as claimed in claim 4 wherein said abutting surfaces comprise flexible fins on the pilferproof ring and fin-engaging projections on the container neck.
Claim 8
Dependent Claim
26 words
A pack as claimed in claim 5 wherein the flexible fins each form an angle of between 70° and 85° with a radius of the cap.
Claim 9
Dependent Claim
27 words
A pack as claimed in any of claims 3 to 7 wherein the lower edge of the pilferproof ring abuts an annular shoulder on the container neck.
Claim 10
Dependent Claim
50 words
A pack as claimed in any of claims 3 to 8 wherein the pilferproof ring is provided with a tear tab, an axial line of weakness being formed between the junction of said tear tab with said ring and the line of weakness joining said ring to said cap skirt.
Claim 11
Dependent Claim
26 words
A pack as claimed in claim 1, substantially as described with reference to Figures 1 to 6, or Figures 7 to 9, of the accompanying drawings.