Patent US3942679A successfully refreshed from Google Patents.
US3942679A
Expired / Lapsed
US
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Sealable closure arrangement
Assignee: Smurfit Kappa Packaging Corp
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Filing: 1974-12-20
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Granted: 1976-03-09
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Expires: 1994-12-20
Abstract
Abstract A sealable closure arrangement for a plastic container and full-removable-cover, including a container with a stiffening rim and a cover with a compliant skirt, which includes sealing, camming, and locking means for effecting such closure.
Inventors
- 👤 Anthony J. Starr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:32
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/04; B65D47/06; B65D47/12; B65D47/121; B65D43/00; B65D43/02; B65D43/0202; B65D43/0204; B65D43/0212; B65D45/00; B65D45/32; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/00074; B65D2543/00092; B65D2543/00259; B65D2543/00296; B65D2543/00342; B65D2543/00398; B65D2543/00407; 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; B65D2543/0074; B65D2543/00787; B65D2543/00796
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
291 words
In a sealable closure arrangement for a plastic container body and a full-removable-cover, the combination of: a. a unitary, tubular body having an open upper end terminating in an annular stiffening rim; b. said rim comprising: i. a peripheral, horizontal, retaining ledge portion extending radially outward from said body; ii. a vertical center portion extending upwardly from the outer periphery of said ledge portion and presenting thereon an outwardly facing, V-shaped aligning groove; iii. a sealing portion curving inwardly from the upper extremity of said center portion and then curving outwardly and upwardly to present therein a generally semicircular groove; c. a cover having a round central portion with a peripheral, dependent, annular, compliant skirt adapted for sealing engagement with said rim; d. said skirt comprising inner and outer walls joined by a curved upper wall to form a channel for receiving said rim, said outer wall including: i. a vertical upper portion presenting an inwardly projecting V-shaped aligning bead adapted to be received within the V-shaped aligning groove of said rim for properly positioning said cover on said body; ii. a locking portion joined to the lower extremity of said upper portion by a relatively flexible hinge portion having a cross-sectional area which is of less thickness than that of the locking and upper portions; iii. said locking portion including at least one cover camming and retaining lug adapted for engagement with the underside of the retaining ledge portion of said rim; e. said skirt upper portion being adapted to engage and compress said rim sealing portion to effect a snug sealing engagement between said rim and skirt; f. means engageable with said cover locking portion for exerting a radial force thereagainst to retain said cover firmly on said container.
Claim 2
Dependent Claim
291 words
In a sealable closure arrangement for a plastic container body and a full-removable-cover, the combination of: a. a unitary, tubular body having an open upper end terminating in an annular stiffening rim; b. said rim comprising: i. a peripheral, horizontal, retaining ledge portion extending radially outward from said body; ii. a vertical center portion extending upwardly from the outer periphery of said ledge portion and presenting thereon an outwardly facing, V-shaped aligning groove; iii. a sealing portion curving inwardly from the upper extremity of said center portion and then curving outwardly and upwardly to present therein a generally semicircular groove; c. a cover having a round central portion with a peripheral, dependent, annular, compliant skirt adapted for sealing engagement with said rim; d. said skirt comprising inner and outer walls joined by a curved upper wall to form a channel for receiving said rim, said outer wall including: i. a vertical upper portion presenting an inwardly projecting V-shaped aligning bead adapted to be received within the V-shaped aligning groove of said rim for properly positioning said cover on said body; ii. a locking portion joined to the lower extremity of said upper portion by a relatively flexible hinge portion having a cross-sectional area which is of less thickness than that of the locking and upper portions; iii. said locking portion including at least one cover camming and retaining lug adapted for engagement with the underside of the retaining ledge portion of said rim; e. said skirt upper portion being adapted to engage and compress said rim sealing portion to effect a snug sealing engagement between said rim and skirt; f. means engageable with said cover locking portion for exerting a radial force thereagainst to retain said cover firmly on said container.
Claim 3
Dependent Claim
266 words
In a sealable closure arrangement for a plastic container body and a full-removable-cover, the combination of: a. a unitary, tubular body having an open upper end terminating in an annular stiffening rim; b. said rim comprising: i. a peripheral, horizontal, retaining ledge portion extending radially outward from said body; ii. a vertical center portion extending upwardly from the outer periphery of said ledge portion and presenting therein an outwardly facing, V-shaped aligning groove; iii. a sealing portion curving inwardly from the upper extremity of said vertical center portion and then curving outwardly and upwardly to present therein a generally semicircular groove; c. a cover having a round central portion with a peripheral, dependent, annular, compliant skirt, adapted for sealing engagement with said rim; d. said skirt comprising inner and outer walls joined by a curved upper wall to form a channel for receiving said rim, said outer wall including: i. a vertical upper portion presenting an inwardly projecting V-shaped aligning bead adapted to be received within the V-shaped aligning groove of said rim for properly positioning said cover on said body; ii. a locking portion joined to the lower extremity of said upper portion by a relatively flexible hinge portion having a cross-sectional area which is of less thickness than that of the locking and upper portions; iii. said locking portion including at least one cover camming and retaining lug adapted for engagement with the underside of the retaining ledge portion of said rim; e. means engageable with said cover locking portion for exerting a radial force thereagainst to retain said cover firmly on said container.
Claim 4
Dependent Claim
266 words
In a sealable closure arrangement for a plastic container body and a full-removable-cover, the combination of: a. a unitary, tubular body having an open upper end terminating in an annular stiffening rim; b. said rim comprising: i. a peripheral, horizontal, retaining ledge portion extending radially outward from said body; ii. a vertical center portion extending upwardly from the outer periphery of said ledge portion and presenting therein an outwardly facing, V-shaped aligning groove; iii. a sealing portion curving inwardly from the upper extremity of said vertical center portion and then curving outwardly and upwardly to present therein a generally semicircular groove; c. a cover having a round central portion with a peripheral, dependent, annular, compliant skirt, adapted for sealing engagement with said rim; d. said skirt comprising inner and outer walls joined by a curved upper wall to form a channel for receiving said rim, said outer wall including: i. a vertical upper portion presenting an inwardly projecting V-shaped aligning bead adapted to be received within the V-shaped aligning groove of said rim for properly positioning said cover on said body; ii. a locking portion joined to the lower extremity of said upper portion by a relatively flexible hinge portion having a cross-sectional area which is of less thickness than that of the locking and upper portions; iii. said locking portion including at least one cover camming and retaining lug adapted for engagement with the underside of the retaining ledge portion of said rim; e. means engageable with said cover locking portion for exerting a radial force thereagainst to retain said cover firmly on said container.
Claim 5
Dependent Claim
211 words
In a sealable closure arrangement for a plastic container body and a full-removable-cover, the combination of: a. unitary, tubular body having an open upper end terminating in an annular stiffening rim; b. said rim comprising: i. a peripheral, horizontal, retaining ledge portion extending radially outward from said body; ii. a vertical center portion extending upwardly from the outer periphery of said ledge portion and presenting therein an outwardly facing, V-shaped aligning groove; c. a cover having a round central portion with a peripheral, dependent, annular, compliant skirt, adapted for sealing engagement with said rim; d. said skirt comprising inner and outer walls joined by a curved upper wall to form a channel for receiving said rim, said wall including: i. upper portion presenting an inwardly projecting V-shaped aligning bead adapted to be received within the V-shaped aligning groove of said rim for properly positioning said cover on said body; ii. a locking portion joined to the lower extremity of said upper portion; iii. said locking portion including at least one cover camming and retaining lug adapted for engagement with the underside of the retaining ledge portion of said rim; e. means engageable with said cover locking portion for exerting a radial force thereagainst to retain said cover firmly on said container.
Claim 6
Dependent Claim
211 words
In a sealable closure arrangement for a plastic container body and a full-removable-cover, the combination of: a. unitary, tubular body having an open upper end terminating in an annular stiffening rim; b. said rim comprising: i. a peripheral, horizontal, retaining ledge portion extending radially outward from said body; ii. a vertical center portion extending upwardly from the outer periphery of said ledge portion and presenting therein an outwardly facing, V-shaped aligning groove; c. a cover having a round central portion with a peripheral, dependent, annular, compliant skirt, adapted for sealing engagement with said rim; d. said skirt comprising inner and outer walls joined by a curved upper wall to form a channel for receiving said rim, said wall including: i. upper portion presenting an inwardly projecting V-shaped aligning bead adapted to be received within the V-shaped aligning groove of said rim for properly positioning said cover on said body; ii. a locking portion joined to the lower extremity of said upper portion; iii. said locking portion including at least one cover camming and retaining lug adapted for engagement with the underside of the retaining ledge portion of said rim; e. means engageable with said cover locking portion for exerting a radial force thereagainst to retain said cover firmly on said container.
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) | 1979-03-09 | 1979-09-08 | 1980-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-09 | 1983-09-08 | 1984-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-09 | 1987-09-08 | 1988-03-09 | $7700.00 | Window Closed / Lapsed |