US4148416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerosol containers
Assignee: Crown Packaging UK Ltd
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Filing: 1977-08-11
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Granted: 1979-04-10
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Expires: 1997-08-11
Abstract
Abstract In an aerosol dispensing container of the kind having a collapsible bag separating the propellant from the product to be dispensed, an elongate core member is arranged completely free, loose and unattached within the bag to prevent pockets of product becoming isolated from the dispensing valve when the bag collapses. The core member provides a path, unaffected by bag collapse, for the product to pass to the valve.
Inventors
- 👤 Ronald A. Gunn-Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:44
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/60; B65D83/62; B65D83/32; B65D2231/00; B65D2231/001; B65D2231/004
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
173 words
An aerosol dispensing container comprising a container body, a collapsible bag therein to separate a propellant chamber defined between the container body and the bag from a product chamber defined by the bag, actuable aerosol dispensing means carried by the container body and arranged in communication with the product chamber at a dispensing end of the bag remote from a bottom end of the bag, an elongate member within the bag extending for substantially the whole length of the bag, the elongted member having a top end adjacent said dispensing end and passage means adapted to allow product to pass at least from its end remote from the dispensing means into the vicinity of the dispensing means, despite constriction of the bag around the elongated member as product dispensing proceeds, wherein the improvement comprises the elongate member being completely free, loose and unattached within the bag, but having a length such that its top end is located at said dispensing end of the bag at all times during said constriction of the bag.
Claim 2
Dependent Claim
173 words
An aerosol dispensing container comprising a container body, a collapsible bag therein to separate a propellant chamber defined between the container body and the bag from a product chamber defined by the bag, actuable aerosol dispensing means carried by the container body and arranged in communication with the product chamber at a dispensing end of the bag remote from a bottom end of the bag, an elongate member within the bag extending for substantially the whole length of the bag, the elongted member having a top end adjacent said dispensing end and passage means adapted to allow product to pass at least from its end remote from the dispensing means into the vicinity of the dispensing means, despite constriction of the bag around the elongated member as product dispensing proceeds, wherein the improvement comprises the elongate member being completely free, loose and unattached within the bag, but having a length such that its top end is located at said dispensing end of the bag at all times during said constriction of the bag.
Claim 3
Dependent Claim
39 words
A container according to claim 1, wherein said passage means of the member are open to the outside of the member along its length, to permit product to enter the passage means intermediate between the ends of the member.
Claim 4
Dependent Claim
11 words
A container according to claim 1, wherein the member is tubular.
Claim 5
Dependent Claim
21 words
A container according to claim 2, wherein the member is tubular and has perforations through its wall intermediate between its ends.
Claim 6
Dependent Claim
12 words
A container according to claim 4, wherein the said perforations comprise slots.
Claim 7
Dependent Claim
25 words
A container according to claim 2, wherein the member has external ribs defining between them external ducts constituting at least part of said passage means.
Claim 8
Dependent Claim
11 words
A container according to claim 6, wherein said member is solid.
Claim 9
Dependent Claim
20 words
A container according to claim 6, wherein said member is tubular, having a bore constituting part of said passage means.
Claim 10
Dependent Claim
26 words
A container according to claim 8, wherein the member has perforations through its wall intermediate between its ends to connect the external ducts with the bore.
Claim 11
Dependent Claim
31 words
A container according to claim 1 wherein said actuable aerosol dispensing means includes a dispensing valve opening directly into said bag at its dispensing end adjacent said elongated member top end.
References Cited (Backward Citations)
US3257036A
Cited
US3718236A
Cited
US3876115A
Cited
US3788521A
Cited
US4013195A
Cited
US4062475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-09 | 1982-10-09 | 1983-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-09 | 1986-10-09 | 1987-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-09 | 1990-10-09 | 1991-04-10 | $7700.00 | Window Closed / Lapsed |