US3669313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerosol dispenser having flexible collapsible product containing sac
Assignee: Novartis Corp
•
Filing: 1971-02-02
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Granted: 1972-06-13
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Expires: 1991-02-02
Abstract
Abstract An aerosol dispenser of the type in which the propellant and the product to be dispensed are kept separate until dispensed. The dispenser has an outer container with a valve means on said outer container. A propellant cartridge is provided in said outer container and is coupled to said valve means. At least one fluid tight flexible sac is provided in said outer container and contains the product to be dispensed in a fluid condition, and means is provided coupling said sac to said valve means for aspirating the contents of the sac when the valve means is opened to allow propellant to flow from said propellant cartridge. The sac collapses due to the atmospheric pressure around it as the contents are aspirated.
Inventors
- 👤 Jean Marand
- 👤 Felix Rousselot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:05
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/60
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
130 words
An aerosol dispenser of the type in which the propellant and the product to be dispensed are kept separate until dispensed, said dispenser comprising an outer container, a valve means on said outer container, a propellant cartridge in said outer container coupled to said valve means, and at least one fluid tight flexible sac in said outer container containing the product to be dispensed in a fluid condition extending annularly around said propellant cartridge with the opposite ends of the sac, in the circumferential direction, being overlapped and the sac covering at least a part of said propellant cartridge, and means coupling said sac to said valve means for aspirating the contents of the sac when the valve means is opened to allow propellant to flow from said propellant cartridge.
Claim 2
Dependent Claim
130 words
An aerosol dispenser of the type in which the propellant and the product to be dispensed are kept separate until dispensed, said dispenser comprising an outer container, a valve means on said outer container, a propellant cartridge in said outer container coupled to said valve means, and at least one fluid tight flexible sac in said outer container containing the product to be dispensed in a fluid condition extending annularly around said propellant cartridge with the opposite ends of the sac, in the circumferential direction, being overlapped and the sac covering at least a part of said propellant cartridge, and means coupling said sac to said valve means for aspirating the contents of the sac when the valve means is opened to allow propellant to flow from said propellant cartridge.
Claim 3
Dependent Claim
110 words
An aerosol dispenser of the type in which the propellant and the product to be dispensed are kept separate until dispensed, said dispenser comprising an outer container, a valve means on said outer container, a propellant cartridge in said outer container coupled to said valve means, and at least one fluid tight flexible sac in said outer container containing the product to be dispensed in a fluid condition, said sac being wound in a spiral around said propellant cartridge, and means coupling said sac to said valve means for aspirating the contents of the sac when the valve means is opened to allow propellant to flow from said propellant cartridge.
Claim 4
Dependent Claim
110 words
An aerosol dispenser of the type in which the propellant and the product to be dispensed are kept separate until dispensed, said dispenser comprising an outer container, a valve means on said outer container, a propellant cartridge in said outer container coupled to said valve means, and at least one fluid tight flexible sac in said outer container containing the product to be dispensed in a fluid condition, said sac being wound in a spiral around said propellant cartridge, and means coupling said sac to said valve means for aspirating the contents of the sac when the valve means is opened to allow propellant to flow from said propellant cartridge.
Claim 5
Dependent Claim
118 words
An aerosol dispenser of the type in which the propellant and the product to be dispensed are kept separate until dispensed, said dispenser comprising an outer container, a valve means on said outer container, a propellant cartridge in said outer container coupled to said valve means, and at least one fluid tight flexible sac in said outer container containing the product to be dispensed in a fluid condition, said propellant cartridge being contained within said flexible sac and depending from said valve means, and means coupling said sac in fluid tight relationship to said valve means for aspirating the contents of the sac when the valve means is opened to allow propellant to flow from said propellant cartridge.
Claim 6
Dependent Claim
118 words
An aerosol dispenser of the type in which the propellant and the product to be dispensed are kept separate until dispensed, said dispenser comprising an outer container, a valve means on said outer container, a propellant cartridge in said outer container coupled to said valve means, and at least one fluid tight flexible sac in said outer container containing the product to be dispensed in a fluid condition, said propellant cartridge being contained within said flexible sac and depending from said valve means, and means coupling said sac in fluid tight relationship to said valve means for aspirating the contents of the sac when the valve means is opened to allow propellant to flow from said propellant cartridge.
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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |