US3866790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conical container with dome-shape lid
Assignee: Solo Cup Operating Corp
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Filing: 1973-08-24
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Granted: 1975-02-18
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Expires: 1993-08-24
Abstract
Abstract A method for securing a closure member in an open end of a container having a curled or rolled rim is described. Die elements are provided including a container holder, an external pressure pad, and a forming head. A container is supported in said holder and a closure member is inserted into said container just below the curled or rolled rim thereof where it is held in place by said pressure pad. The forming head is then actuated to force or roll the rimmed edge inwardly and crimp the same against the closure member to lock the closure member within said container.
Inventors
- 👤 Thomas E Marion
- 👤 Richard D Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:55
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/26; B21D51/30; B21D51/34; B65; B65D; B65D7/00; B65D7/12; B65D7/34; B65D7/36
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
68 words
A package comprising a conical container having an outwardly curled rim around an open end thereof in combination with a domeshaped closure means having an annular flange, said dome shaped closure means being secured in said open end of said conical container by crimping said curled rim and annular flange together, said curled rim being constrained inboard of said container and crushed into juxtaposition with said annular flange.
Claim 2
Dependent Claim
68 words
A package comprising a conical container having an outwardly curled rim around an open end thereof in combination with a domeshaped closure means having an annular flange, said dome shaped closure means being secured in said open end of said conical container by crimping said curled rim and annular flange together, said curled rim being constrained inboard of said container and crushed into juxtaposition with said annular flange.
Claim 3
Dependent Claim
21 words
A package according to claim 1, wherein said annular flange extends upward from the base of said dome shaped closure means.
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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |