Patent US3833154A successfully refreshed from Google Patents.
US3833154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible dispensing container
Assignee: Stem Development Corp
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Filing: 1972-09-27
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Granted: 1974-09-03
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Expires: 1992-09-27
Abstract
Abstract A collapsible dispensing container wherein a container body is provided with an opening having a discharge member engaged over the opening, and in the opening is a one-way valve resiliently biased to permit fluent material movement outwardly upon collapse of the container body and prevent fluent material entry to the body.
Inventors
- 👤 I Markowitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:43
CPC Classifications
B; B65; B65D; B65D1/00; B65D1/02; B65D1/0223; B65D1/0292; B65D1/32; B65D47/00; B65D47/04; B65D47/20; B65D47/2018; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/7888; Y10T137/7891
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
184 words
A dispensing container comprising a hollow collapsible body having an opening, a discharge member over said opening for discharging contents from said body, a normally closed one-way valve in said opening for passing contents outwardly only, said valve being normally resiliently biased to closed position and yieldable to open under pressure of fluid contents on application of external forces tending to collapse said body; and said valve comprising a valve wall of resiliently flexible material extending across said opening, a tab formed of a central wall region and resiliently flexible out of the plane of said valve wall and lying coplaner with the remainder of said valve wall when in a normally closed position, and a valve element carried by said tab on one side thereof for movement with said tab into and out of overlapping closing relation with an intermediate wall region adjacent to said central wall region; said tab forming a tongue-like member and having a portion thereof connected to said valve wall so as to be substantially pivotable about said portion upon flexing out of the plane of said valve wall.
Claim 2
Dependent Claim
184 words
A dispensing container comprising a hollow collapsible body having an opening, a discharge member over said opening for discharging contents from said body, a normally closed one-way valve in said opening for passing contents outwardly only, said valve being normally resiliently biased to closed position and yieldable to open under pressure of fluid contents on application of external forces tending to collapse said body; and said valve comprising a valve wall of resiliently flexible material extending across said opening, a tab formed of a central wall region and resiliently flexible out of the plane of said valve wall and lying coplaner with the remainder of said valve wall when in a normally closed position, and a valve element carried by said tab on one side thereof for movement with said tab into and out of overlapping closing relation with an intermediate wall region adjacent to said central wall region; said tab forming a tongue-like member and having a portion thereof connected to said valve wall so as to be substantially pivotable about said portion upon flexing out of the plane of said valve wall.
Claim 3
Dependent Claim
50 words
A dispensing container according to claim 1, in combination with a hollow neck on said body communicating between the interior and exterior thereof, the hollow of said neck defining said opening, and a shoulder of closed outline configuration extending about said neck, said valve wall being seated on said shoulder.
Claim 4
Dependent Claim
46 words
A dispensing container according to claim 2, said discharge member comprising an engagement portion engaged over the outer end of said neck, the outer end of said neck defining said shoulder, and said valve wall being clamped in position on said shoulder by said engagement portion.
Claim 5
Dependent Claim
27 words
A dispensing container according to claim 3, said discharge member comprising a spout extending from said engagement member for passing and directing fluid contents from said body.
Claim 6
Dependent Claim
50 words
A dispensing container according to claim 1, said body being integrally fabricated of stiff resilient materil and comprising a pair of spaced end walls, and a circumferential side wall extending about the peripheries of and between said end walls, said side wall being formed to define a spirally configured bellows.
Claim 7
Dependent Claim
19 words
A dispensing container according to claim 5, the spiral configuration of said bellows extending continuously between said end walls.
Claim 8
Dependent Claim
83 words
A dispensing container according to claim 5, in combination with a hollow neck on one of said end walls communicating between the interior and exterior of said body and defining said opening, and a shoulder of closed outline configuration extending about said neck, and said valve being seated in sealing relation on said shoulder, and said tab flexing out of the plane of said valve wall upon the collapse of said body whereby said contents is discharged from said body through said valve.
Claim 9
Dependent Claim
21 words
The dispensing container according to claim 1, wherein said tab is partially detached from said valve wall and integrally formed therewith.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |