Patent US2709864A successfully refreshed from Google Patents.
US3672536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container and closure therefor
Assignee: Phillips Petroleum Co
•
Filing: 1970-02-05
•
Granted: 1972-06-27
•
Expires: 1990-02-05
Abstract
Abstract A container with a closure retention groove is provided with a rigid stacking ring structure of reduced height, comprising a vertical wall section extending upwardly from the outer periphery of a horizontal lower stacking shoulder to the inner periphery of a horizontal annular rim. A compressional camming wall section extends inwardly and downwardly from the inner periphery of the lower stacking shoulder to the upper extent of the closure retention groove. A closure for the container can be formed so that the portion of the closure between the closure rim and the retention bead grips the portion of the container between the retention groove and the container rim, to secure the closure to the container.
Inventors
- 👤 Alfred W Kinney
- 👤 James W Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:26
CPC Classifications
B; B65; B65D; B65D43/00; B65D43/02; B65D43/0202; B65D43/0204; B65D43/021; B65D21/00; B65D21/02; B65D21/0233; B65D51/00; B65D51/16; B65D51/1633; B65D51/1661; B65D51/1666; B65D2543/00; B65D2543/00009; B65D2543/00018; 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; B65D2543/00675; B65D2543/00685; B65D2543/00712; B65D2543/00722; B65D2543/00731; B65D2543/00787; B65D2543/00814
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
243 words
A container comprising a bottom wall, an upstanding wall extending generally upwardly and outwardly from the periphery of said bottom wall, an inwardly opening outwardly directed closure retention groove wall section extending generally upwardly from the periphery of the upper extent of said upstanding wall, a compressional camming wall section extending generally upwardly and outwardly from the periphery of the upper extent of said closure retention groove wall section, a circumferentially continuous annular ring stacking shoulder extending at least substantially horizontally outwardly from the upper extent of said compressional camming wall section, a stacking ring wall section extending at least substantially vertically upwardly from the outer extent of said stacking shoulder, a rim having a flat annular ring portion extending horizontally outwardly from the periphery of the upper extent of said stacking ring wall section, said flat annular ring being joined to the upper extent of said stacking ring wall section at a substantially 90* angle, the outer diameter of said closure retention groove wall section being less than the inner diameter of the upper extent of said stacking ring wall section, the outer diameter of said stacking shoulder being greater than the inner diameter of said rim so that the stacking shoulder of an upper container rests upon the rim of the next lower container in a stack of superimposed identical containers, with the at least substantially vertical configuration of the stacking ring wall section providing at least substantially maximum stacking rigidity.
Claim 2
Dependent Claim
243 words
A container comprising a bottom wall, an upstanding wall extending generally upwardly and outwardly from the periphery of said bottom wall, an inwardly opening outwardly directed closure retention groove wall section extending generally upwardly from the periphery of the upper extent of said upstanding wall, a compressional camming wall section extending generally upwardly and outwardly from the periphery of the upper extent of said closure retention groove wall section, a circumferentially continuous annular ring stacking shoulder extending at least substantially horizontally outwardly from the upper extent of said compressional camming wall section, a stacking ring wall section extending at least substantially vertically upwardly from the outer extent of said stacking shoulder, a rim having a flat annular ring portion extending horizontally outwardly from the periphery of the upper extent of said stacking ring wall section, said flat annular ring being joined to the upper extent of said stacking ring wall section at a substantially 90* angle, the outer diameter of said closure retention groove wall section being less than the inner diameter of the upper extent of said stacking ring wall section, the outer diameter of said stacking shoulder being greater than the inner diameter of said rim so that the stacking shoulder of an upper container rests upon the rim of the next lower container in a stack of superimposed identical containers, with the at least substantially vertical configuration of the stacking ring wall section providing at least substantially maximum stacking rigidity.
Claim 3
Dependent Claim
24 words
A container in accordance with claim 1 wherein said upstanding wall and said compressional camming wall section are circumferentially continuous frustoconically contoured wall sections.
Claim 4
Dependent Claim
38 words
A container in accordance with claim 1 wherein the outer diameter of said stacking shoulder exceeds the inner diameter of said rim by at least twice the thickness of the upper extent of said stacking ring wall section.
Claim 5
Dependent Claim
46 words
A container in accordance with claim 1 wherein said rim further comprises a second porTion extending outwardly and downwardly from the outer periphery of said annular ring portion, the vertical height of said rim being less than the vertical height of said stacking ring wall section.
Claim 6
Dependent Claim
55 words
A container in accordance with claim 4 wherein said upstanding wall and said compressional camming wall section are circumferentially continuous frustoconically contoured wall sections, and wherein the outer diameter of said stacking shoulder exceeds the inner diameter of said rim by approximately twice the thickness of the upper extent of said stacking ring wall section.
Claim 7
Dependent Claim
37 words
A container in accordance with claim 1 wherein said container is a one piece, integral thermoformed structure with the thickness of said stacking ring wall section decreasing from the upper extent thereof to the lower extent thereof.
Claim 8
Dependent Claim
215 words
A container in accordance with claim 1 further comprising a closure applied to said container and having a diaphragm, a sidewall, an outwardly directed, inwardly opening retention bead extending generally upwardly from the periphery of said diaphragm to the lower extent of said sidewall, and a rim extending outwardly from the upper extent of said sidewall; said retention bead being dimensioned to snap into said closure retention groove wall section of said container; said rim of said closure extending outwardly over said rim of said container and in contact therewith; the distance between the point of contact of the container rim and the closure rim and the point of contact of the retention bead and the closure retention groove wall section being greater than the distance between the same points in the unstressed closure before the unstressed closure is applied to said container, so that the portion of said closure between said points of contact serves as a C-clamp to grip the mating portion of said container to thereby secure said closure to said container; each of said stacking shoulder and said spacer wall section being inclined at an acute angle to an imaginary line through said points of contact to increase the resilience of the portion of said container between said points of contact.
Claim 9
Dependent Claim
174 words
A container and closure in accordance with claim 7 wherein said retention bead is interrupted at circumferentially spaced locations by a plurality of venting grooves which extend to a point on said diaphragm which is spaced inwardly a significant distance from the inner edge of said closure retention groove wall section to provide continuously open fluid communication between the packaging space within the container below said diaphragm and the annular space between said sidewall of said closure and the laterally adjacent portion of said container; wherein said rim of said container curves outwardly and downwardly; and further comprising a skirt depending from the outer periphery of the rim of said closure, and inwardly directed camming grooves formed at the junction of said rim of said closure and said depending skirt, said camming grooves contacting said outwardly and downwardly curved portion of said rim of said container to effect a lifting of the closure rim from the container rim upon the occurrence of excessive pressure in said packaging space to thereby vent said packaging space.
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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |