US3885672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined stacking ring and container cover
Assignee: Individual
•
Filing: 1974-02-07
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Granted: 1975-05-27
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Expires: 1994-02-07
Abstract
Abstract Molded plastic stacking device comprises a pair of oppositely axially extending annular flange portions and a transverse wall portion. The device is adapted to be snapped onto the beaded ends of a pair of containers so that the containers will be relatively firmly held together until one desires to utilize their contents. The transverse wall portion cooperates with one or both of the flange portions to firmly seal one or both of the containers after they have been opened. A pair of integral, axially spaced inwardly extending flexible annular ring members on each flange portion serve to lock the device to both the cylindrical portions of the containers as well as the bead portions.
Inventors
- 👤 Irmgard M Westenrieder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:34
CPC Classifications
B; B65; B65D; B65D71/00; B65D71/50; B65D71/502; Y; Y10; Y10S; Y10S206/00; Y10S206/821
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
173 words
In combination, a pair of containers, each having at least one beaded end, and a molded plastic stacking device for stacking said pair of containers and engaging and retaining said beaded ends, said stacking device comprising an imperforate, substantially planar center portion defined at its periphery by oppositely axially extending annular flange portions, said flange portions each including a pair of integral, spaced annular ridges having their apexes directed generally radiAlly inwardly and having their axially outermost walls directed toward said planar center portion, the intermost ridge of each of said pair of ridges extending radially inwardly to a lesser extent than the outermost ridge, each of said intermost ridges engaging and retaining the end bead of one of said pair of containers and each of said outermost ridges engaging the side wall of one of said pair of containers, said intermost ridges being axially spaced from said planar center portion and having an inner diameter less than the maximum diameter of the beaded end of the container with which it is engaged.
Claim 2
Dependent Claim
173 words
In combination, a pair of containers, each having at least one beaded end, and a molded plastic stacking device for stacking said pair of containers and engaging and retaining said beaded ends, said stacking device comprising an imperforate, substantially planar center portion defined at its periphery by oppositely axially extending annular flange portions, said flange portions each including a pair of integral, spaced annular ridges having their apexes directed generally radiAlly inwardly and having their axially outermost walls directed toward said planar center portion, the intermost ridge of each of said pair of ridges extending radially inwardly to a lesser extent than the outermost ridge, each of said intermost ridges engaging and retaining the end bead of one of said pair of containers and each of said outermost ridges engaging the side wall of one of said pair of containers, said intermost ridges being axially spaced from said planar center portion and having an inner diameter less than the maximum diameter of the beaded end of the container with which it is engaged.
Claim 3
Dependent Claim
48 words
The combination of claim 1 wherein an open space is provided between said pairs of annular ridges on said stacking device and between the intermost ridges and the planar center portion to accommodate the resilient movement of said ridges as said stacking device is assembled to said containers.
Claim 4
Dependent Claim
25 words
The combination of claim 2 wherein said open spaces have a greater diametral extent than the diametral extent of the beaded ends of said containers.
Claim 5
Dependent Claim
25 words
The device of claim 1 wherein said stacking combination has a non-cylindrical outer surface having a greater diameter at its center than at its ends.
Claim 6
Dependent Claim
33 words
The combination of claim 4 wherein said outer surface is concavely curved between its ends and its center so as to define a pair of finger gripping surfaces and a central ridge portion.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |