US3667667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double boiler and throw-a-way food package
Assignee: Continental Can Co Inc
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Filing: 1970-12-15
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Granted: 1972-06-06
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Expires: 1990-12-15
Abstract
Abstract This disclosure relates to an improved container particularly of the so-called double boiler type, in which a cover is secured to the container body by an overfolded or crimped peripheral edge of the latter. Between adjacent side edges of the cover an edge of the periphery thereof is inwardly offset and in this area the cover is not crimped to the container but is actually spaced slightly from the crimp which serves as a vent for steam when the container contents are heated. Moreover, at this same area there is located the starting end of a tear strip portion, and since the latter is not secured to the container by the crimp, the starting end can be easily gripped and the tear strip portion readily removed to gain access to the container contents.
Inventors
- 👤 Henry E Frankenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:21
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/34; B65D81/3438; B65D77/00; B65D77/10; B65D77/20; B65D77/2004; B65D77/2008; B65D2577/00; B65D2577/10; B65D2577/20; B65D2577/2041; B65D2577/205; B65D2577/2075; B65D2577/2091; Y; Y10; Y10S; Y10S229/00; Y10S229/902; Y10S229/903
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
109 words
In a cover of the easy opening type adapted to be secured to a container by an overfolded periphery thereof, said cover including a removable tear strip portion having a starting end projecting beyond a peripheral edge of said cover, the improvement comprising a first portion of said peripheral edge at one side of said starting end being inwardly offset relative to a second portion of said peripheral edge at a second side of said starting end opposite said one side whereby upon inward overfolding of said starting end and the securement thereof to a container the tear strip portion is readily removed away from the overfolded container periphery.
Claim 2
Dependent Claim
109 words
In a cover of the easy opening type adapted to be secured to a container by an overfolded periphery thereof, said cover including a removable tear strip portion having a starting end projecting beyond a peripheral edge of said cover, the improvement comprising a first portion of said peripheral edge at one side of said starting end being inwardly offset relative to a second portion of said peripheral edge at a second side of said starting end opposite said one side whereby upon inward overfolding of said starting end and the securement thereof to a container the tear strip portion is readily removed away from the overfolded container periphery.
Claim 3
Dependent Claim
49 words
In a cover of the type adapted to be secured to a ventilable container at its periphery, said cover including adjacent side edges, the improvement comprising venting means being an edge portion of the cover periphery which is inwardly offset relative to at least one of said side edges.
Claim 4
Dependent Claim
49 words
In a cover of the type adapted to be secured to a ventilable container at its periphery, said cover including adjacent side edges, the improvement comprising venting means being an edge portion of the cover periphery which is inwardly offset relative to at least one of said side edges.
Claim 5
Dependent Claim
119 words
A container and cover combination comprising a container body having an overfolded peripheral edge imparting a predetermined configuration to said body, said cover including a peripheral edge of a configuration substantially similar to said predetermined configuration, a major portion of said cover peripheral edge lying beneath a major portion of said overfolded peripheral edge and being thereby secured to said container body, and a minor portion of said cover peripheral edge being inwardly offset from a minor portion of said overfolded peripheral edge thereby forming a relieved area between said minor cover peripheral edge portion and said minor cover peripheral edge portion thereby adapting said container and cover combination for particular use as an easy opening and/or ventilable assembly.
Claim 6
Dependent Claim
119 words
A container and cover combination comprising a container body having an overfolded peripheral edge imparting a predetermined configuration to said body, said cover including a peripheral edge of a configuration substantially similar to said predetermined configuration, a major portion of said cover peripheral edge lying beneath a major portion of said overfolded peripheral edge and being thereby secured to said container body, and a minor portion of said cover peripheral edge being inwardly offset from a minor portion of said overfolded peripheral edge thereby forming a relieved area between said minor cover peripheral edge portion and said minor cover peripheral edge portion thereby adapting said container and cover combination for particular use as an easy opening and/or ventilable assembly.
Claim 7
Dependent Claim
28 words
The improvement in a cover as defined in claim 1 wherein said tear strip portion includes a fold line thereacross and inboard of said second peripheral edge portion.
Claim 8
Dependent Claim
27 words
The improvement in a cover as defined in claim 1 including an outwardly opening notch between said starting end second side and said second peripheral edge portion.
Claim 9
Dependent Claim
71 words
The improvement in a cover as defined in claim 1 wherein said cover is of a generally polygonal configuration having adjacent side peripheral edge portions on opposite sides of said first and second peripheral edge portions, and said first peripheral edge portion merges with a first of said side peripheral edge portions along an arc having a locus spaced dissimilar distances from said side peripheral edge portions as measured normal thereto.
Claim 10
Dependent Claim
27 words
The improvement in a cover as defined in claim 4 including an outwardly opening notch between said starting end second side and said second peripheral edge portion.
Claim 11
Dependent Claim
71 words
The improvement in a cover as defined in claim 4 wherein said cover is of a generally polygonal configuration having adjacent side peripheral edge portions on opposite sides of said first and second peripheral edge portions, and said first peripheral edge portion merges with a first of said side peripheral edge portions along an arc having a locus spaced dissimilar distances from said side peripheral edge portions as measured normal thereto.
Claim 12
Dependent Claim
40 words
The improvement in a cover as defined in claim 6 wherein the distance between said locus and said first side peripheral edge portion is less than the distance between said locus and the second of said side peripheral edge portions.
Claim 13
Dependent Claim
48 words
The improvement in a cover as defined in claim 2 wherein said venting meaNs edge portion merges with a first of said side edges along an arc having a locus spaced a closer normal distance to said first side edge than to the second of said side edges.
Claim 14
Dependent Claim
60 words
The combination as defined in claim 3 wherein said cover includes a removable tear strip portion having a starting end joined to a remaining portion along a fold line, said starting end is folded about said fold line into overlying relationship to said remaining portion, and said minor cover peripheral edge portion is in part defined by said fold line.
Claim 15
Dependent Claim
41 words
The combination as defined in claim 3 wherein said cover peripheral edge is further defined by a pair of adjacent angularly disposed side edge portions, and said minor cover peripheral edge portion is positioned between said pair of side edge portions.
Claim 16
Dependent Claim
60 words
The combination as defined in claim 12 wherein said cover includes a removable tear strip portion having a starting end joined to a remaining portion along a fold line, said starting end is folded about said fold line into overlying relationship to said remaining portion, and said minor cover peripheral edge portion is in part defined by said fold line.
Claim 17
Dependent Claim
31 words
The combination as defined in claim 13 wherein said minor cover peripheral edge portion is defined by an arc merging with said fold line and one of said side edge portions.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |