US3712498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container closure
Assignee: Alcoa Corp
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Filing: 1971-10-27
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Granted: 1973-01-23
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Expires: 1991-10-27
Abstract
Abstract A container assembly for providing a sterile sealed container including a container having a neck provided with an annular mouth defining bead and a multipiece closure having a sealing member, a locking member and a cover secured thereto. The mouth defining bead has an upper surface, an exteriorly disposed downwardly and inwardly inclined closure anchoring shoulder defining surface and an outer surface connecting the upper surface with the shoulder defining surface. The locking member has a top panel with an opening therein and a depending skirt which has a lower surface radially inwardly deformed into locking engagement with the anchoring shoulder. At least two radially outstruck lugs formed within the locking member skirt. A portion of the sealing member compressively secured between the locking member and the container neck. The cover having a top panel and a skirt having a lower portion deformed radially inwardly to a diameter less than the diameter of the locking member taken at the position of at least one outstruck lug. At least one radially inwardly directed embossment formed in the cover skirt at a height generally the same as the lugs. Rotation of the cover with respect to the locking member causes the embossment to permanently inwardly reform the outstruck lugs and permit relative axial separation of the closure and locking member.
Inventors
- 👤 K Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:09
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/002
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
200 words
A closure assembly comprising a sealing member having a continuous upper panel portion and composed of a resilient material, a locking member having a top panel provided with an opening and a depending skirt which is adapted to be anchored to a container neck, a cover having a top panel and a depending skirt, said sealing member disposed within said locking member, said locking member disposed at least in part within said cover, said locking member skirt having at least two integrally formed radially outstruck lugs, said cover skirt having a radially restricted lower portion with a diameter less than the external diameter of said locking member taken at the location of at least one said lug, said cover portion having at least one radially inwardly directed embossment disposed at generally the same height as said lugs, and the minimum diameter of said cover skirt at said radially restricted skirt portion is less than the diameter of said locking member at said lug, whereby relative axial separation of said locking member and said cover is prevented until relative rotational movement of said cover with respect to said locking member has caused said embossments to permanently deform said lugs radially inwardly.
Claim 2
Dependent Claim
200 words
A closure assembly comprising a sealing member having a continuous upper panel portion and composed of a resilient material, a locking member having a top panel provided with an opening and a depending skirt which is adapted to be anchored to a container neck, a cover having a top panel and a depending skirt, said sealing member disposed within said locking member, said locking member disposed at least in part within said cover, said locking member skirt having at least two integrally formed radially outstruck lugs, said cover skirt having a radially restricted lower portion with a diameter less than the external diameter of said locking member taken at the location of at least one said lug, said cover portion having at least one radially inwardly directed embossment disposed at generally the same height as said lugs, and the minimum diameter of said cover skirt at said radially restricted skirt portion is less than the diameter of said locking member at said lug, whereby relative axial separation of said locking member and said cover is prevented until relative rotational movement of said cover with respect to said locking member has caused said embossments to permanently deform said lugs radially inwardly.
Claim 3
Dependent Claim
43 words
The closure assembly of claim 1 including said cover skirt extends downwardly beyond said lugs and terminates short of the lower extremity of said locking member skirt, and said embossment projects inwardly a distance substantially equal to the outward projection of said lugs.
Claim 4
Dependent Claim
19 words
The closure assembly of claim 2 including said cover skirt lower extremity having a radially inwardly projecting hollow bead.
Claim 5
Dependent Claim
38 words
The closure assembly of claim 2 including said locking member having at least three said lugs, and each said lug having a radially outwardly projecting lower edge defined at least in part by a generally horizontally disposed slit.
Claim 6
Dependent Claim
64 words
The closure assembly of claim 2 including said locking member has at least three said lugs, said cover member has the same number of embossments as said locking member has lugs, said lugs are defined by a pair of generally horizontal slits and a connecting vertical slit, and said lugs are connected to said locking member skirt by a generally vertically disposed hinge portion.
Claim 7
Dependent Claim
54 words
The closure assembly of claim 2 including said cover top panel having a hollow depressed section, said sealing member being composed of a resiliently compressible material, said hollow depressed section in overlying downwardly directed resilient deforming contact with said sealing member, whereby said sealing member exerts on upward resiliently established force in said cover.
Claim 8
Dependent Claim
80 words
The closure assembly of claim 5 including said lugs all have their free ends projecting in the same circumferential direction, said embossments have a generally convex inward curvature, said lugs originate at a position closely adjacent said locking member top panel, said embossments originate at a position closely adjacent said cover top panel, and the mean diameter of said cover skirt apart from said embossments is greater than the mean diameter of said locking member skirt apart from said lugs.
Claim 9
Dependent Claim
194 words
A container assembly comprising a container having a neck provided with an annular mouth defining bead, said mouth defining bead having an upper surface, an exteriorly disposed inwardly inclined closure anchoring shoulder surface and an outer annular surface connecting said upper surface with said shoulder surface, a multipiece closure having a sealing member, a locking member and a cover, said locking member having a top panel with an opening therein and a depending skirt which has a lower portion directed generally radially inwardly into locking engagement with said shoulder surface, at least two radially outstruck lugs formed within said locking member skirt, a portion of said sealing member compressively secured between said locking member and said container neck, said cover having a top panel and a skirt having a lower portion directed generally radially inwardly to a diameter less than the mean diameter of said locking member taken across at least one said outstruck lug, and at least one radially inwardly directed embossment formed in said cover skirt at such a height as to mechanically engage and reform said outstruck lugs when relative rotational movement is effected between said locking member and said skirt.
Claim 10
Dependent Claim
194 words
A container assembly comprising a container having a neck provided with an annular mouth defining bead, said mouth defining bead having an upper surface, an exteriorly disposed inwardly inclined closure anchoring shoulder surface and an outer annular surface connecting said upper surface with said shoulder surface, a multipiece closure having a sealing member, a locking member and a cover, said locking member having a top panel with an opening therein and a depending skirt which has a lower portion directed generally radially inwardly into locking engagement with said shoulder surface, at least two radially outstruck lugs formed within said locking member skirt, a portion of said sealing member compressively secured between said locking member and said container neck, said cover having a top panel and a skirt having a lower portion directed generally radially inwardly to a diameter less than the mean diameter of said locking member taken across at least one said outstruck lug, and at least one radially inwardly directed embossment formed in said cover skirt at such a height as to mechanically engage and reform said outstruck lugs when relative rotational movement is effected between said locking member and said skirt.
Claim 11
Dependent Claim
45 words
The container assembly of claim 8 including said cover skirt having a diameter at its lower extremity which is greater than the mean diameter of said locking member skirt, and said sealing member having a continuous top panel of larger diameter than said container mouth.
Claim 12
Dependent Claim
23 words
The container assembly of claim 8 including each said lug has a radially outwardly projecting lower edge defined by a substantially horizontal slit.
Claim 13
Dependent Claim
43 words
The container assembly of claim 8 including said lugs are defined by a pair of substantially horizontal slits which are connected by a vertical slit, said locking member has three said lugs, and said cover member has three said radially inwardly directed embossments.
Claim 14
Dependent Claim
20 words
The container assembly of claim 9 including said cover skirt lower portion terminating in a radially inwardly projecting hollow bead.
Claim 15
Dependent Claim
47 words
The container assembly of claim 9 including said sealing member composed of a resiliently compressible material, said cover top panel having a depressed portion which is generally centrally disposed, and said depressed top panel portion in overlying contacting relationship with respect to said sealing member top panel.
Claim 16
Dependent Claim
94 words
The container assembly of claim 9 including said cover member having the same number of radially inwardly directed embossments as said locking member has lugs, and the circumferential spacing between adjacent radially inwardly directed embossments is generally equal to the circumferential spacing between adjacent lugs, whereby all of said lugs will be radially inwardly reformed responsive to the establishment of relative rotation of said cover with respect to said locking member through an arc of not greater than 180* to permit relative axial separation between said cover and the remainder of said closure assembly.
Claim 17
Dependent Claim
50 words
The container assembly of claim 9 including at least a major portion of each of said lugs disposed at a level higher than said outer surface of said container bead, and said cover skirt terminating at a position lower than and closely adjacent to the lower extremities of said lugs.
Claim 18
Dependent Claim
59 words
The container assembly of claim 15 including said cover and locking member composed of a substantially rigid deformable material, said sealing member composed of a resiliently compressible material, said outstruck lugs disposed at a level beneath the plane of said locking member top panel, and said radially inwardly directed embossments disposed beneath the plane of said cover top panel.
References Cited (Backward Citations)
US3073468A
Cited
US3587897A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |