US3677430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-centering and venting closure
Assignee: Growth International Industries Corp
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Filing: 1970-08-24
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Granted: 1972-07-18
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Expires: 1990-08-24
Abstract
Abstract A closure having an outer annular leg to engage a bead about the rim of an open container body, an annular flexible sealing leg having spaced recesses to allow compressed gas to escape during the engagement of the closure to the container body and to provide a seal when the engagement is complete, an inner annular leg and a generally flat center portion to compensate for stresses during cooling of the molded closure and to act as a receptacle for a stacked container. The outer annular leg also has an end recess for self centering of the closure upon the container rim.
Inventors
- 👤 George Yates Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:32
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/16; B65D51/1672; B65D51/1688; B65D51/1694; B65D21/00; B65D21/02; B65D21/0209; B65D21/0217; B65D21/0219; B65D43/00; B65D43/02; B65D43/0202; B65D43/0204; B65D43/0212; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/00074; B65D2543/00092; B65D2543/00259; B65D2543/00296; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00518; B65D2543/00537; B65D2543/00555; B65D2543/00592; B65D2543/00601; B65D2543/00611; B65D2543/00629; B65D2543/00675; B65D2543/00685; B65D2543/00712; B65D2543/00722; B65D2543/0074; B65D2543/00787; B65D2543/00805; B65D2543/00953; B65D2543/00962; B65D2543/00972
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
212 words
A tamper-proof closure adapted to close an open end of a container body comprising: a center portion; a peripheral channel comprising a base portion, an outer annular leg attached to an outer edge of said base portion and extending downwardly therefrom, an inner annular leg attached to an inner edge of said base portion and extending downwardly therefrom, said center portion being attached to a lower edge of said inner annular leg, and an annular flexible sealing leg attached to said base portion and extending downwardly therefrom, said annular flexible sealing leg being positioned between said inner and said outer annular legs, a plurality of openings spaced about said outer annular leg, a lower edge of said outer annular leg being continuous about said outer annular leg and said lower edge being severable at said plurality of openings to facilitate removal of said closure; and means connected to Said peripheral channel adapted to lockingly engage the open end of said container body whereby the open end of said container body is receivable between said outer annular leg and said annular flexible sealing leg and said annular flexible sealing leg is adapted to abut the end of said container body and flex to form at least a partial seal about said open end.
Claim 2
Dependent Claim
212 words
A tamper-proof closure adapted to close an open end of a container body comprising: a center portion; a peripheral channel comprising a base portion, an outer annular leg attached to an outer edge of said base portion and extending downwardly therefrom, an inner annular leg attached to an inner edge of said base portion and extending downwardly therefrom, said center portion being attached to a lower edge of said inner annular leg, and an annular flexible sealing leg attached to said base portion and extending downwardly therefrom, said annular flexible sealing leg being positioned between said inner and said outer annular legs, a plurality of openings spaced about said outer annular leg, a lower edge of said outer annular leg being continuous about said outer annular leg and said lower edge being severable at said plurality of openings to facilitate removal of said closure; and means connected to Said peripheral channel adapted to lockingly engage the open end of said container body whereby the open end of said container body is receivable between said outer annular leg and said annular flexible sealing leg and said annular flexible sealing leg is adapted to abut the end of said container body and flex to form at least a partial seal about said open end.
Claim 3
Dependent Claim
63 words
A closure as claimed in claim 1 wherein said annular flexible leg has a plurality of recessed portions extending from an end of said flexible leg toward said base portion and spaced about a surface of the flexible leg facing said outer annular leg whereby during the engagement of said closure and said container body compressed gas may escape along said recessed portion.
Claim 4
Dependent Claim
43 words
A closure as claimed in claim 2 wherein said center portion is connected to an end of said inner annular leg whereby said center portion and said inner annular leg form a receptacle to receive a bottom end of a stacked container body.
Claim 5
Dependent Claim
41 words
A closure as claimed in claim 1 wherein an end portion of said outer annular leg opposite said base portion is crooked to form a recess for facilitating the centering of said closure upon said open end of said container body.
Claim 6
Dependent Claim
249 words
A tamper-proof closure adapted to close an open end of a container body comprising: a center portion; a peripheral channel comprising a base portion, an outer annular leg attached to an outer edge of said base portion and extending downwardly therefrom; an inner annular leg attached to an inner edge of said base portion and extending downwardly therefrom, said center portion being integrally formed to a lower edge of said inner annular leg, and an annular flexible sealing leg attached to said base portion and extending downwardly therefrom, said annular flexible sealing leg being positioned between said inner and said outer annular legs; a projecting bead integral with said outer annular leg and extending toward said annular flexible sealing leg, said bead being spaced apart from an end of said outer annular leg opposite the base and said bead including a cam follower surface and an abutment surface; and a plurality of openings spaced about said closure in said annular outer leg, an end portion of said outer annular leg opposite said base being continuous about said closure said end portion of said outer annular leg being severable at said plurality of openings to facilitate removal of said closure, whereby the open end of said container body is receivable between said outer annular leg and said annular flexible sealing leg and said annular flexible sealing leg is adapted to abut the end of said container body and flex to form at least a partial seal about said open end.
Claim 7
Dependent Claim
249 words
A tamper-proof closure adapted to close an open end of a container body comprising: a center portion; a peripheral channel comprising a base portion, an outer annular leg attached to an outer edge of said base portion and extending downwardly therefrom; an inner annular leg attached to an inner edge of said base portion and extending downwardly therefrom, said center portion being integrally formed to a lower edge of said inner annular leg, and an annular flexible sealing leg attached to said base portion and extending downwardly therefrom, said annular flexible sealing leg being positioned between said inner and said outer annular legs; a projecting bead integral with said outer annular leg and extending toward said annular flexible sealing leg, said bead being spaced apart from an end of said outer annular leg opposite the base and said bead including a cam follower surface and an abutment surface; and a plurality of openings spaced about said closure in said annular outer leg, an end portion of said outer annular leg opposite said base being continuous about said closure said end portion of said outer annular leg being severable at said plurality of openings to facilitate removal of said closure, whereby the open end of said container body is receivable between said outer annular leg and said annular flexible sealing leg and said annular flexible sealing leg is adapted to abut the end of said container body and flex to form at least a partial seal about said open end.
Claim 8
Dependent Claim
63 words
A closure as claimed in claim 5 wherein said annular flexible leg has a plurality of recessed portions extending from an end of said flexible leg toward said base portion and spaced about a surface of the flexible leg facing said outer annular leg whereby during the engagement of said closure and said container body compressed gas may escape along said recessed portion.
Claim 9
Dependent Claim
43 words
A closure as claimed in claim 6 wherein said center portion is connected to an end of said inner annular leg whereby said center portion and said inner annular leg form a receptacle to receive a bottom end of a stacked container body.
Claim 10
Dependent Claim
41 words
A closure as claimed in claim 7 wherein an end portion of said outer annular leg opposite said base portion is crooked to form a recess for facilitating the centering of said closure upon said open end of said container body.
Claim 11
Dependent Claim
41 words
A closure as claimed in claim 5 wherein an end portion of said outer annular leg opposite said base portion is crooked to form a recess for facilitating the centering of said closure upon said open end of said container body.
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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |