US3896933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display packaging unit for packaging and displaying small parts
Assignee: LUEDENSCHEID SPRITZGUSS WERK
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Filing: 1973-06-29
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Granted: 1975-07-29
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Expires: 1993-06-29
Abstract
Abstract A packaging unit for displaying small parts packaged therein includes a substantially prismatic transparent container and a substantially plate-shaped cover for the container. These parts are slidable relative to each other in drawer-like fashion. They are provided with latch means or catch means tending to break when the cover is removed from the container, thus forming telltale means indicating unauthorized opening of the packaging unit.
Inventors
- 👤 Ulrich Bockemuhl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:18
CPC Classifications
B; B65; B65D; B65D25/00; B65D25/20; B65D25/22; B65D11/00; B65D11/10; B65D11/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
208 words
A packaging unit of synthetic resin for storing small parts including a transparent prismatic container having integral outwardly projecting flanges and a substantially plate-shaped cover for said container having parallel slide guide ribs engaged by said flanges of said container and allowing a relative rectilinear motion of said cover and said container, said cover having a perforation outside the area thereof encompassed by said container to allow suspension of said unit by means of said perforation, and said cover having abutment means limiting the extent of said relative motion of said cover and said container, wherein the improvement comprises a flexible tab adapted to form a latch and a tab-receiving aperture adapted to be engaged by said latch-forming tab when said container is closed by said cover and said tab-receiving aperture and said latch-forming tab are in registry, said latch-forming tab and said tab-receiving aperture being formed by portions of said slide guide ribs of said cover and by portions of said flanges of said container, and said latch-forming tab being arranged in such a way that it snaps into said tab-receiving aperture incident to closing of said container by said cover and is fractured incident to a rectilinear opening motion of said cover relative to said container.
Claim 2
Dependent Claim
208 words
A packaging unit of synthetic resin for storing small parts including a transparent prismatic container having integral outwardly projecting flanges and a substantially plate-shaped cover for said container having parallel slide guide ribs engaged by said flanges of said container and allowing a relative rectilinear motion of said cover and said container, said cover having a perforation outside the area thereof encompassed by said container to allow suspension of said unit by means of said perforation, and said cover having abutment means limiting the extent of said relative motion of said cover and said container, wherein the improvement comprises a flexible tab adapted to form a latch and a tab-receiving aperture adapted to be engaged by said latch-forming tab when said container is closed by said cover and said tab-receiving aperture and said latch-forming tab are in registry, said latch-forming tab and said tab-receiving aperture being formed by portions of said slide guide ribs of said cover and by portions of said flanges of said container, and said latch-forming tab being arranged in such a way that it snaps into said tab-receiving aperture incident to closing of said container by said cover and is fractured incident to a rectilinear opening motion of said cover relative to said container.
Claim 3
Dependent Claim
77 words
A packaging unit as specified in claim 1 wherein said flanges of said container form recesses and wherein said slide guide ribs are hook-shaped in cross-section, portions of said ribs forming flexible tabs including wedge-shaped surfaces arranged to enter into said recesses of said flanges of said container in the closed positions of said cover, and said flexible tabs being arranged to be fractured incident to a subsequent relative opening motion of said cover and said container.
Claim 4
Dependent Claim
28 words
A packaging unit as specified in claim 2 wherein said tabs are formed by portions of said ribs which are parallel to the general plane of said cover.
Claim 5
Dependent Claim
28 words
A packaging unit as specified in claim 2 wherein said tabs are formed by portions of said ribs at right angles to the general plane of said cover.
Claim 6
Dependent Claim
27 words
A packaging unit as specified in claim 1 wherein said flexible tabs are arranged accessibly so that they can be broken off by means of a tool.
Claim 7
Dependent Claim
84 words
A packaging unit as specified in claim 1 wherein said slide guide ribs have a pair of flanges enclosing a substantially right angle, the flanges immediately adjacent the general plane defined by said cover having a spacing substantially equal to the spacing of the outer edges of said flanges of said container, said flanges of said slide-guide ribs forming flexible latching tabs and said flanges of said container having recesses receiving said latching tabs when said latching tabs and said recesses are in registry.
References Cited (Backward Citations)
US3367491A
Cited
US3782584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |