Patent US3784049A successfully refreshed from Google Patents.
US3784049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container with bag-liner locking rim
Assignee: LOMA CORP FT WORTH
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Filing: 1972-10-26
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Granted: 1974-01-08
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Expires: 1992-10-26
Abstract
Abstract A container is provided with a locking rim for securing flexible-bag liner in an open configuration in the container. The upper rim of a container is formed with a plurality of locking ribs angularly spaced around the rim. Each of the ribs is formed with a socket of a configraution that interlocks with the flexible-bag liner. Rolling of the upper periphery of the bag liner over the rim and into the socket locks the liner to the container.
Inventors
- 👤 B Hawk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:03
CPC Classifications
B; B65; B65F; B65F1/00; B65F1/04; B65F1/06; B65D; B65D25/00; B65D25/14; B65D25/16
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
88 words
A container comprising an upstanding peripheral wall defining an opening at the upper end thereof and adapted to receive a flexible-bag liner, and a plurality of locking ribs formed with said upstanding wall Adjacent the upper end thereof and in spaced relationship to each other said ribs projecting laterally outward from the exterior surface of said wall and having a socket formed in the lower marginal edge portion thereof to receive a marginal edge portion of the liner and maintain the liner in locked engagement with the container.
Claim 2
Dependent Claim
88 words
A container comprising an upstanding peripheral wall defining an opening at the upper end thereof and adapted to receive a flexible-bag liner, and a plurality of locking ribs formed with said upstanding wall Adjacent the upper end thereof and in spaced relationship to each other said ribs projecting laterally outward from the exterior surface of said wall and having a socket formed in the lower marginal edge portion thereof to receive a marginal edge portion of the liner and maintain the liner in locked engagement with the container.
Claim 3
Dependent Claim
57 words
A container according to claim 1 wherein said locking ribs are of plate-form vertically disposed and said sockets are an aperture formed a distance upwardly from the lower edge of each respective rib with a slot extending between the aperture and lower edge through which the peripheral edge portion of the liner is projected into the aperture.
Claim 4
Dependent Claim
31 words
A container according to claim 2 wherein the lower edge of said rib is arcuately curved from said slot into contiguous relationship to the upwardly extending edge portions of said rib.
Claim 5
Dependent Claim
27 words
A container according to claim 2 wherein said slot is divergent from its juncture with said aperture to facilitate entrance of the liner into the said aperture.
Claim 6
Dependent Claim
36 words
A container according to claim 1 wherein said upstanding wall is formed at the upper end with an inverted channel of U-shaped cross-section having an outer leg projecting downwardly and terminating a distance above said sockets.
Claim 7
Dependent Claim
18 words
A container according to claim 5 wherein the closed upper end of the said channel is arcuately curved.
Claim 8
Dependent Claim
25 words
A container according to claim 5 wherein said outer leg is formed with the outer surface thereof contiguous with the outer edge of said ribs.
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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |