US4215792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Push-down gate in a raised aperture in a can end
Assignee: Individual
•
Filing: 1979-08-06
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Granted: 1980-08-05
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Expires: 1999-08-06
Abstract
Abstract A push-down gate in a panel section of a can end, below an aperture therein and being connected to the panel at the aperture by a hinge means wherein: said aperture comprises a short, inwardly-inclined lip upstanding from the end panel section, having an outer wall portion upfolded from the end panel, an inner wall portion forming the aperture orifice and a reverse fold at the crest of the lip interconnecting the inner and outer wall portions; an inward fold about the base of the inner wall portion forms a gate panel below the aperture, said inward fold being on a short radius and being adjacent to the upfold radius from the end panel to the outer wall portion; and a score cut in the gate panel at the inward fold extending about the panel from each side of the hinge means defines the push-down gate.
Inventors
- 👤 Gerald B. Klein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:29
CPC Classifications
B; B65; B65D; B65D17/00; B65D17/28; B65D17/401; B65D2517/00; B65D2517/0001; B65D2517/0058; B65D2517/0059; B65D2517/0065
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
149 words
A push-down gate in a panel section of a can end, below an aperture therein and being connected to the panel at the aperture by a hinge means wherein: (a) said aperture comprises a short, inwardly-inclined lip upstanding from the end panel section, having an outer wall portion upfolded from the end panel, an inner wall portion forming the aperture orifice and a reverse fold at the crest of the lip interconnecting the inner and outer wall portions; (b) an inward fold about the base of the inner wall portion forms a gate panel below the aperture, said inward fold being on a short radius and being adjacent to the upfold radius from the end panel to the outer wall portion; and (c) a score cut in the gate panel at the inward fold extending about the panel from each side of the hinge means defines the push-down gate.
Claim 2
Dependent Claim
149 words
A push-down gate in a panel section of a can end, below an aperture therein and being connected to the panel at the aperture by a hinge means wherein: (a) said aperture comprises a short, inwardly-inclined lip upstanding from the end panel section, having an outer wall portion upfolded from the end panel, an inner wall portion forming the aperture orifice and a reverse fold at the crest of the lip interconnecting the inner and outer wall portions; (b) an inward fold about the base of the inner wall portion forms a gate panel below the aperture, said inward fold being on a short radius and being adjacent to the upfold radius from the end panel to the outer wall portion; and (c) a score cut in the gate panel at the inward fold extending about the panel from each side of the hinge means defines the push-down gate.
Claim 3
Dependent Claim
34 words
The push-down gate defined in claim 1, wherein an outward edge rim produced by the score cut is folded against the aforesaid upfold and against the underside of the panel adjacent to the upfold.
Claim 4
Dependent Claim
42 words
The push-down gate defined in claim 2, wherein said inward fold is an 180-degree return fold to form an upsloping rim at the edge of the gate panel, with said rim being fitted against the adjacent inner wall portion of the aperture.
Claim 5
Dependent Claim
25 words
The push-down gate defined in claim 2, wherein said hinge means comprises a short portion of uncut metal between the ends of the score cut.
Claim 6
Dependent Claim
34 words
The push-down gate defined in claim 3 wherein the gate panel includes a reverse edge turn at the crest of said 180-degree upfold to provide a finger grip or guard ridge about the gate.
Claim 7
Dependent Claim
49 words
The push-down gate defined in claim 5 wherein the reverse edge turn is a tight 180-degree fold to place a downwardly inclined finger grip or guard ridge against the said upfold, and a reverse curve fold at the base thereof to form the inner portion of the gate panel.
Claim 8
Dependent Claim
14 words
The push-down gate defined in claim 5, wherein the aperture is elongated in form.
Claim 9
Dependent Claim
14 words
The push-down gate defined in claim 2, wherein the aperture is circular in form.
Claim 10
Dependent Claim
18 words
The push-down gate defined in claim 8, wherein the aperture is at the apex of a frusto-conical end.
Claim 11
Dependent Claim
39 words
In the push-down gate defined in claim 1, wherein the reverse fold at the crest of the lip is an open fold to spread apart the tops of the inner and outer wall portions and thereby pipe the lip.
References Cited (Backward Citations)
US4125204A
Cited
US4126244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-08-05 | 1984-02-04 | 1984-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-05 | 1988-02-04 | 1988-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-05 | 1992-02-04 | 1992-08-05 | $7700.00 | Window Closed / Lapsed |