Patent US3612342A successfully refreshed from Google Patents.
US3612342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container lid
Assignee: Foster Grant Co Inc
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Filing: 1969-07-14
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Granted: 1971-10-12
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Expires: 1989-07-14
Abstract
Abstract A stackable lid or closure for use with containers having a complementary open mouth rim portion, the lid having a configuration which insures smooth and instant release during coin-feeding of the bottom lid from a vertical stack thereof, the same configuration providing a stack of lids which will resist displacement or jamming of the lids in the stack.
Inventors
- 👤 Willard J Rathbun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:23
CPC Classifications
B; B65; B65D; B65D43/00; B65D43/02; B65D43/0202; B65D43/0204; B65D43/0208; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00027; B65D2543/00064; B65D2543/00074; B65D2543/00092; B65D2543/00259; B65D2543/00296; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00509; B65D2543/00537; B65D2543/00555; B65D2543/00592; B65D2543/00601; B65D2543/00611; B65D2543/0062; B65D2543/00638; B65D2543/00675; B65D2543/00685; B65D2543/00712; B65D2543/00722; B65D2543/00731; B65D2543/00787; B65D2543/00796
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
257 words
A stackable lid for a container, said container including an inwardly facing groove near a rim portion thereof, said lid comprising: a bottom wall lying substantially in a plane; a sidewall joined to the periphery of said bottom wall; a bead for engaging the groove on said container formed at the junction of said side and bottom walls and adapted to support the lid upon the sidewall of a like lid disposed beneath it in a stack of such lids; said sidewall extending upward from said bead with its horizontal span at its bottom being less than the horizontal span of said bead and with its horizontal span at the top thereof being greater than the horizontal span of said bead, said sidewall being positioned and configured so that the bead of a like lid disposed above said lid in a stack of such lids is normally supported on said sidewall near the top edge thereof; an outwardly extending flange joined to the top of the sidewall; a depending skirt secured to the outer edge of said flange, said skirt being of such length that the extreme lower end thereof normally lies substantially in the plane of the bottom wall; an inwardly extending continuous groove on the skirt spaced from said extreme lower end thereof; the bottom portion of said skirt beginning at said groove and extending to said extreme lower end thereof being downwardly and outwardly flared and adapted to support the lid upon a like lid disposed beneath it in a stack of such lids.
Claim 2
Dependent Claim
257 words
A stackable lid for a container, said container including an inwardly facing groove near a rim portion thereof, said lid comprising: a bottom wall lying substantially in a plane; a sidewall joined to the periphery of said bottom wall; a bead for engaging the groove on said container formed at the junction of said side and bottom walls and adapted to support the lid upon the sidewall of a like lid disposed beneath it in a stack of such lids; said sidewall extending upward from said bead with its horizontal span at its bottom being less than the horizontal span of said bead and with its horizontal span at the top thereof being greater than the horizontal span of said bead, said sidewall being positioned and configured so that the bead of a like lid disposed above said lid in a stack of such lids is normally supported on said sidewall near the top edge thereof; an outwardly extending flange joined to the top of the sidewall; a depending skirt secured to the outer edge of said flange, said skirt being of such length that the extreme lower end thereof normally lies substantially in the plane of the bottom wall; an inwardly extending continuous groove on the skirt spaced from said extreme lower end thereof; the bottom portion of said skirt beginning at said groove and extending to said extreme lower end thereof being downwardly and outwardly flared and adapted to support the lid upon a like lid disposed beneath it in a stack of such lids.
Claim 3
Dependent Claim
62 words
A lid according to claim 1 in which said sidewall of said lid has upper and lower portions which are joined at a bend in said sidewall, said upper portion of said sidewall extending upwardly and outwardly from said bend and being positioned and configured for supporting the bead of a like lid disposed above it in a stack of such lids.
Claim 4
Dependent Claim
41 words
A lid according to claim 2 wherein said upper portion of said sidewall comprises a frustoconical ledge extending continuously upwardly and outwardly from said bend at an angle of between 35* and 55* relative to the vertical axis of said lid.
Claim 5
Dependent Claim
39 words
A lid according to claim 2 wherein said upper portion of said sidewall comprises a frustoconical ledge extending continuously upwardly and outwardly from said bend at an angle of approximately 45* relative to the vertical axis of said lid.
Claim 6
Dependent Claim
32 words
A lid according to claim 4 wherein said bottom portion of said skirt extends continuously downwardly and outwardly at an angle of approximately 30* relative to the vertical axis of said lid.
Claim 7
Dependent Claim
54 words
A lid according to claim 4 wherein the width of said frustoconical ledge is greater than one-third the length of the sidewall to provide a substantially wide supporting surface to prevent a bead supported thereby in a stack of lids to be forced past said bend in said sidewall causing jamming of said lids.
Claim 8
Dependent Claim
39 words
A lid according to claim 6 wherein said skirt extends straight downwardly for at least half the length of the skirt between said flange and said continuous groove to provide an uninterrupted surface for engagement by lid feeding apparatus.
Claim 9
Dependent Claim
41 words
A lid according to claim 2 wherein said upper portion of said sidewall comprises a frustoconical ledge extending continuously upwardly and outwardly from said bend at an angle of between 40* and 50* relative to the vertical axis of said lid.
Claim 10
Dependent Claim
67 words
A lid according to claim 1 in which said sidewall of said lid has upper and lower portions which are joined at a bend in said sidewall, said upper portion of said sidewall extending upwaRdly and outwardly from said bend except in selected sections thereof and being positioned and configured for supporting the bead of a like lid disposed above it in a stack of such lids.
Claim 11
Dependent Claim
77 words
A lid according to claim 9 wherein said upper portion of said sidewall immediately adjacent said bend in said selected sections around the circumference of said lid extends only inwardly in a horizontal direction for a limited distance to provide a supporting shelf to prevent the bead of a like lid normally supported by said top portion of said sidewall in a stack of such lids from being forced past said bend causing jamming of said lids.
Claim 12
Dependent Claim
84 words
A lid according to claim 10 wherein said lower portion of said sidewall in said selected sections around the circumference of said lid extends continuously upwardly and inwardly until it terminates at said bend to aid in removal of said lid from its forming mold by requiring a camming surface in said mold to coact with said bead to continuously reduce the diameter of said bead until it passes the bend forming portion of said mold upon removal of said lid from said mold.
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) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |