US4583577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container insulator
Assignee: CANFIELD CAMMY 2836 DANIEL AVENUE DALLAS 75205
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Filing: 1984-08-27
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Granted: 1986-04-22
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Expires: 2004-08-27
Abstract
Abstract An insulating cover is provided for a beverage container (24). A resilient cylindrical sidewall member (10) is slit (18) with overlapping edges (20 and 22) for expansion and contraction. A plurality of bottom segments (12) depend from the sidewall in an iris-like configuration to enlarge or contract with the sidewall (10) while maintaining support for the enclosed container (24).
Inventors
- 👤 Charles L. Canfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:36
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/38; B65D81/3876; B65D81/3879; Y; Y10; Y10S; Y10S150/00; Y10S150/901
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
83 words
An insulating cover for a container, comprising: a resilient cylindrical sidewall member formed to a selected first radius of curvature and defining two vertical edges overlapping to increase said first radius of curvature, and a plurality of bottom wall segments each depending from said sidewall and separated by slits effective for slidingly overlapping adjacent bottom wall segments at said first radius of curvature in a generally concave configuration, said overlapping adjacent bottom wall segments defining an iris-like central aperture having a variable diameter.
Claim 2
Dependent Claim
83 words
An insulating cover for a container, comprising: a resilient cylindrical sidewall member formed to a selected first radius of curvature and defining two vertical edges overlapping to increase said first radius of curvature, and a plurality of bottom wall segments each depending from said sidewall and separated by slits effective for slidingly overlapping adjacent bottom wall segments at said first radius of curvature in a generally concave configuration, said overlapping adjacent bottom wall segments defining an iris-like central aperture having a variable diameter.
Claim 3
Dependent Claim
33 words
A cover according to claim 1, wherein said sidewall member and bottom wall segments are formed from a thin sheet of insulating material selected from the group consisting of polyethylene foam or polystyrene.
Claim 4
Dependent Claim
30 words
A cover according to claim 1, wherein said slits have a first end adjacent said central aperture and a second end terminating within a perimeter defined by said sidewall member.
Claim 5
Dependent Claim
15 words
A cover according to claim 3, wherein said material forming said sidewall is thermosetting plastic.
Claim 6
Dependent Claim
105 words
An insulating cover for a container, comprising: a cylindrical sidewall member of thermosetting plastic defining two overlapping vertical edges for resiliently expanding to a second radius of curvature from a first thermally set radius of curvature, a disk-like bottom member depending from said sidewall and defining a central aperture, a plurality of slits having a first end adjacent said central aperture and a second end within a perimeter defined by said sidewall member for separating said bottom member into a corresponding plurality of segments, and said slits cooperatively enabling said plurality of segments to overlap in an iris-like manner at said first radius of curvature.
Claim 7
Dependent Claim
105 words
An insulating cover for a container, comprising: a cylindrical sidewall member of thermosetting plastic defining two overlapping vertical edges for resiliently expanding to a second radius of curvature from a first thermally set radius of curvature, a disk-like bottom member depending from said sidewall and defining a central aperture, a plurality of slits having a first end adjacent said central aperture and a second end within a perimeter defined by said sidewall member for separating said bottom member into a corresponding plurality of segments, and said slits cooperatively enabling said plurality of segments to overlap in an iris-like manner at said first radius of curvature.
Claim 8
Dependent Claim
16 words
A cover according to claim 5, wherein said overlapping plurality of segments defines a concave surface.
Claim 9
Dependent Claim
21 words
A cover according to claim 6, wherein said thermosetting material is selected from a group consisting of polyethylene foam or polystyrene.
References Cited (Backward Citations)
US538699A
Cited
US2142301A
Cited
US2589645A
Cited
US2757790A
Cited
US3813801A
Cited
US3680726A
Cited
US3910328A
Cited
US4268567A
Cited
US4282279A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-21 | 1989-10-21 | 1990-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-21 | 1993-10-21 | 1994-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-21 | 1997-10-21 | 1998-04-22 | $7700.00 | Window Closed / Lapsed |