US4787530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tamper-evident lid
Assignee: Individual
•
Filing: 1987-10-16
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Granted: 1988-11-29
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Expires: 2007-10-16
Abstract
Abstract A tamper-evident lid for use with containers includes a surface to cover the container, and downward projections around the periphery of the surface which surround the mouth of said container. A continuous ring is affixed to the downward projections. A plurality of tamper-evident hooks are frangibly attached to said ring. The hooks are visible through openings in the downward projections. The hooks engage the container, but when the lid is removed, the hooks fracture away from the ring and the tampering with the package is apparent. In the preferred embodiment, a bead on the lid engages the sidewall of the container to provide a resealable, airtight seal.
Inventors
- 👤 Bryant Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:35
CPC Classifications
B; B65; B65D; B65D43/00; B65D43/02; B65D43/0235; B65D43/0237; B65D43/0249; B65D43/0252; B65D43/0256; B65D43/0262; B65D2401/00; B65D2401/15; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/00074; B65D2543/00092; B65D2543/00259; B65D2543/00296; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00509; B65D2543/00527; B65D2543/00537; B65D2543/00555; B65D2543/00592; B65D2543/00601; B65D2543/00611; B65D2543/00629; B65D2543/00657; B65D2543/00675; B65D2543/00685; B65D2543/00712; B65D2543/00722; B65D2543/0074; B65D2543/00787; B65D2543/00796; B65D2543/00953; B65D2543/0099
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
129 words
A tamper-evident lid adapted to be used with a container, said lid comprising: a continuous surface adapted to cover the mouth of said container, said lid having downwardly projecting portions adapted to surround the outside of the mouth of said container; a bead integrally formed on said continuous surface and adapted to engage the side wall of said container and form a seal therewith; a continuous ring affixed to said downwardly projecting portions, said ring adapted to encircle the mouth of said container; a tamper evident assembly frangibly affixed to said ring, said tamper evident assembly comprising hook members adapted to engage said container, said downwardly projecting portions having openings in the area of each tamper evident assembly in order to provide visual observation of said tamper evident assembly.
Claim 2
Dependent Claim
129 words
A tamper-evident lid adapted to be used with a container, said lid comprising: a continuous surface adapted to cover the mouth of said container, said lid having downwardly projecting portions adapted to surround the outside of the mouth of said container; a bead integrally formed on said continuous surface and adapted to engage the side wall of said container and form a seal therewith; a continuous ring affixed to said downwardly projecting portions, said ring adapted to encircle the mouth of said container; a tamper evident assembly frangibly affixed to said ring, said tamper evident assembly comprising hook members adapted to engage said container, said downwardly projecting portions having openings in the area of each tamper evident assembly in order to provide visual observation of said tamper evident assembly.
Claim 3
Dependent Claim
52 words
A lid as described in claim 1, wherein said tamper evident assembly is joined to said ring by a frangible joint which allows said hook members to be deflected upwardly during insertion of the lid onto the container, but which causes said joint to fracture when said hook members are deflected downwardly.
Claim 4
Dependent Claim
20 words
A lid as described in claim 2, wherein said frangible joint comprises a sharp angle at its upper, inner side.
Claim 5
Dependent Claim
18 words
A lid as described in claim 2, wherein said ring is interrupted by the fracture of said joint.
Claim 6
Dependent Claim
33 words
A lid as described in claim 1, comprising a sanitary cover depending from said lid and contacting said container, said sanitary cover positioned adjacent to and extending beyond both ends of said opening.
Claim 7
Dependent Claim
139 words
A tamper-evident package comprising a lid and a container; said container having a rim defining a container mouth, said rim adapted to receive a removable lid; a downwardly turned lip extending outwardly and downwardly from the rim of said container; said lid comprising a container surface adapted to cover said container mouth, and having downwardly projecting portions adapted to surround the rim of said container; a continuous ring affixed to said downwardly projecting portions, said ring adapted to encircle the rim of said container; a tamper evident assembly frangibly affixed to said ring, said tamper evident assembly comprising a hook member adapted to engage the under side of said downward turned lip; and said downwardly projecting portions having an opening in the area of said tamper evident assembly in order to provide visual observation of said tamper evident assembly.
Claim 8
Dependent Claim
139 words
A tamper-evident package comprising a lid and a container; said container having a rim defining a container mouth, said rim adapted to receive a removable lid; a downwardly turned lip extending outwardly and downwardly from the rim of said container; said lid comprising a container surface adapted to cover said container mouth, and having downwardly projecting portions adapted to surround the rim of said container; a continuous ring affixed to said downwardly projecting portions, said ring adapted to encircle the rim of said container; a tamper evident assembly frangibly affixed to said ring, said tamper evident assembly comprising a hook member adapted to engage the under side of said downward turned lip; and said downwardly projecting portions having an opening in the area of said tamper evident assembly in order to provide visual observation of said tamper evident assembly.
Claim 9
Dependent Claim
41 words
A tamper-evident package as described in claim 6, wherein said tamper evident assembly is joined to said ring by a frangible joint which allows said hook to be deflected upwardly, but which fractures said joint when said hook is deflected downwardly.
Claim 10
Dependent Claim
51 words
A tamper-evident package as described in claim 7, said tamper evident assembly is joined to said ring by a frangible joint having a sharp angle at its upper inner side, whereby said joint accommodates upward deflection of said hook member, but said joint fractures when said hook member is deflected downwardly.
Claim 11
Dependent Claim
18 words
A package as described in claim 7, wherein said ring is interrupted by the fracture of said joint.
Claim 12
Dependent Claim
39 words
A package as described in claim 6, wherein said lid comprises a sanitary cover depending from said lid and contacting the lip of said container, said sanitary cover positioned adjacent to and extending beyond both ends of said opening.
Claim 13
Dependent Claim
56 words
A package as described in claim 6, wherein an inwardly directed annular bead is positioned at the upper portion of the rim of said container and an outwardly directed annular bead is positioned to a corresponding vertical member of said lid, whereby said beads cooperate to lock said lid to said container in the closed position.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-11-29 | 1992-05-30 | 1992-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-29 | 1996-05-30 | 1996-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-29 | 2000-05-30 | 2000-11-29 | $7700.00 | Window Closed / Lapsed |