US5238134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Limited-reuse tamper-evident container
Assignee: NATIONAL SECURITY AGENCY United States, AS REPRESENTED BY DIRECTOR OF
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Filing: 1992-08-20
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Granted: 1993-08-24
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Expires: 2012-08-20
Abstract
Abstract A tamper-evident container is disclosed that can be reused a limited number of times with the tamper-evident feature for secure storage or transport of material. The container is made up of a base and a lid. The base has a hollow interior for holding material and an open top. The base also has a number of platform-like holders, each with a hole, that project perpendicular to and inwardly from the interior walls of the base. The holders are used in attaching the lid to the base. The lid is the same shape as the base (i.e., multisided, hexagonal, or circular). The lid contains frangible elements which outnumber the holders in the base. Each frangible element is made up of a shaft tipped with a cone. Frangibility of the element is achieved by dividing it into quadrants and scoring the base. Each element extends downward from the interior-top of the lid. A subset of the frangible elements align with the holders in the base. The container is closed when a subset of frangible elements engage with the holders. The lid and the base each have a built-in handle. The container is opened by pulling on the handles to separate the lid from the base. The frangible elements are broken when the container is opened. Tampering is defined as unauthorized opening. The container can be reused with this tamper-evident feature by rotating the lid with respect to the base so that another subset of unbroken frangible-elements align with the holders so that the container upon engagement of the new subset.
Inventors
- 👤 Donald L. Knapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:57
CPC Classifications
B; B65; B65D; B65D43/00; B65D43/02; B65D43/0235; B65D43/0264; B65D43/0274; B65D2401/00; B65D2401/15; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/0012; B65D2543/00212; B65D2543/00259; B65D2543/00296; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00527; B65D2543/00537; B65D2543/00824; B65D2543/00833; B65D2543/00851
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
275 words
A limited-reuse tamper-evident container assembly or indicating whether said assembly has been opened a limited number of times comprising: (a) a base for holding materials contained therein including a surface, side walls extending orthogonally from said surface, an open top opposite said surface, and at least one platform-like structure extending inwardly from said side walls, said at least one platform-like structure being situated between said surface and said open top, each of said at least one platform-like structure includes a hole; and (b) a removable lid applicable to said base for closing said container assembly including a surface, side walls extending orthogonally from said surface, an open bottom opposite said surface that fits snugly over said side walls of said base, and a plurality of frangible elements extending from said surface toward said hole in said at least one platform-like structure of said base wherein one of said frangible elements engages with each said at least one platform-like structure to secure said lid to said base and provide evidence of removal of said lid from said base which results in the destruction of said engaged frangible element, unused and unbroken frangible elements provide a limited number of tamper-evident reuses of said container assembly by allowing the lid to be repositioned with respect to said base in order to engage another of said unbroken frangible elements, each of said frangible elements includes a quartered stem integrally molded with said surface of said lid and a quartered cone at a free end of said stem, said stem includes a weakened point of reduced cross section disposed at an end of said stem opposite said free end thereof.
Claim 2
Dependent Claim
275 words
A limited-reuse tamper-evident container assembly or indicating whether said assembly has been opened a limited number of times comprising: (a) a base for holding materials contained therein including a surface, side walls extending orthogonally from said surface, an open top opposite said surface, and at least one platform-like structure extending inwardly from said side walls, said at least one platform-like structure being situated between said surface and said open top, each of said at least one platform-like structure includes a hole; and (b) a removable lid applicable to said base for closing said container assembly including a surface, side walls extending orthogonally from said surface, an open bottom opposite said surface that fits snugly over said side walls of said base, and a plurality of frangible elements extending from said surface toward said hole in said at least one platform-like structure of said base wherein one of said frangible elements engages with each said at least one platform-like structure to secure said lid to said base and provide evidence of removal of said lid from said base which results in the destruction of said engaged frangible element, unused and unbroken frangible elements provide a limited number of tamper-evident reuses of said container assembly by allowing the lid to be repositioned with respect to said base in order to engage another of said unbroken frangible elements, each of said frangible elements includes a quartered stem integrally molded with said surface of said lid and a quartered cone at a free end of said stem, said stem includes a weakened point of reduced cross section disposed at an end of said stem opposite said free end thereof.
Claim 3
Dependent Claim
76 words
The limited-reuse tamper-evident container assembly of claim 3, wherein: (a) said base includes a handle extending outwardly from said surface of said base for providing mechanical support for pulling said base away from said lid; and (b) said lid includes a handle extending outwardly from said surface of said lid for providing mechanical support for pulling said lid away from said base, such separation causes the destruction of said engaged frangible-elements and provides evidence of tampering.
Claim 4
Dependent Claim
62 words
The limited-reuse tamper-evident container assembly of claim 2, wherein: (a) said base includes at least three side walls; and (b) said lid includes an equal number of side walls as does said base, wherein the number of side walls determines the maximum number of lid orientations and therefore the maximum number of tamper-evident uses that can be obtained with said container assembly.
Claim 5
Dependent Claim
93 words
The limited-reuse tamper-evident container assembly of claim 3, wherein: (a) said base includes eight side walls and two platform-like structures, said platform-like structures being situated in-line with each other and on opposite side walls of said base; and (b) said lid includes eight side walls and sixteen frangible elements, said frangible elements are situated so that there are two frangible elements located along each side wall of said lid so that said frangible elements align with said platform-like structures of said base in order to obtain eight tamper-evident uses of said container assembly.
Claim 6
Dependent Claim
25 words
The limited-reuse tamper-evident container assembly of claim 4, wherein said base and said lid are made of optically-clear plastic for maximum visual recognition of tampering.
Claim 7
Dependent Claim
20 words
The limited-reuse tamper-evident container assembly of claim 5, wherein said plastic is marbalized to provide unique identification of said container.
Claim 8
Dependent Claim
29 words
The limited-reuse tamper-evident container assembly of claim 4, wherein said base and aid lid are made of opaque plastic for preventing visual access to the contents of said container.
Claim 9
Dependent Claim
20 words
The limited-reuse tamper-evident container assembly of claim 7, wherein said plastic is marbalized to provide unique identification of said container.
Claim 10
Dependent Claim
47 words
The limited-reuse tamper-evident container assembly of claim 2, wherein: (a) said base is circular; and (b) said lid is circular, wherein he number of frangible-elements determines the maximum number of lid orientations and therefore the maximum number of tamper-evident uses that can be obtained from said container.
Claim 11
Dependent Claim
25 words
The limited-reuse tamper-evident container assembly of claim 9, wherein said base and said lid are made of optically-clear plastic for maximum visual recognition of tampering.
Claim 12
Dependent Claim
20 words
The limited-reuse tamper-evident container assembly of claim 10, wherein said plastic is marbalized to provide unique identification of said container.
Claim 13
Dependent Claim
29 words
The limited-reuse tamper-evident container assembly of claim 9, wherein said base and said lid are made of opaque plastic for preventing visual access to the contents of said container.
Claim 14
Dependent Claim
20 words
The limited-reuse tamper-evident container assembly of claim 12, wherein said plastic is marbalized to provide unique identification of said container.
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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) | 1996-08-23 | 1997-02-22 | 1997-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-23 | 2001-02-22 | 2001-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-23 | 2005-02-22 | 2005-08-24 | $7700.00 | Window Closed / Lapsed |