US4752465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerosol foam
Assignee: Product Resources International Inc
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Filing: 1987-01-21
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Granted: 1988-06-21
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Expires: 2007-01-21
Abstract
Abstract A stable, edible anhydrous aerosol foam comprises a foamable liquid oil, a foaming agent, a food grade propellant, and at least 15 wt % dispersed solid particles. The foam is a stable whip having the consistency of whipped cream and can be dispensed in repeatable and measurable quantities onto a spoon. It is useful to dispense a wide variety of active, especially therapeutic, agents and, in particular, as an alternative to tablets or capsules which are hard to swallow or liquid medicines having a bad taste.
Inventors
- 👤 Leonard Mackles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:53
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0053; A61K9/0056
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
63 words
An edible, anhydrous aerosol foam composition comprising a foamable liquid oil, a foaming agent, a propellant, and dispersed solid particles, said propellant being present in an amount sufficient to produce a stable, measurable foam but insufficient to produce a spray when said composition is ejected through an aerosol valve, and said dispersed solid particles being at least 15% by weight of said composition.
Claim 2
Dependent Claim
63 words
An edible, anhydrous aerosol foam composition comprising a foamable liquid oil, a foaming agent, a propellant, and dispersed solid particles, said propellant being present in an amount sufficient to produce a stable, measurable foam but insufficient to produce a spray when said composition is ejected through an aerosol valve, and said dispersed solid particles being at least 15% by weight of said composition.
Claim 3
Dependent Claim
17 words
The composition of claim 1 wherein said propellant comprises 1 to 10 wt. % of said composition.
Claim 4
Dependent Claim
11 words
The composition of claim 1 wherein said propellant is a hydrocarbon.
Claim 5
Dependent Claim
10 words
The composition of claim 3 wherein said propellant is propane.
Claim 6
Dependent Claim
19 words
The composition of claim 1 wherein said solid particles are insoluble in the other ingredients of said foam composition.
Claim 7
Dependent Claim
22 words
The composition of claim 1 wherein the average size of said solid particles is in the range of 50 to 100 microns.
Claim 8
Dependent Claim
29 words
The composition of claim 1 wherein said solid particles are selected from the group consisting of powdered skim milk, crushed nut solids, powdered flavors, sugars, sugarless sweeteners, and clays.
Claim 9
Dependent Claim
12 words
The composition of claim 7 wherein said solid particles comprise powdered sugar.
Claim 10
Dependent Claim
13 words
The composition of claim 1 wherein said solid particles comprise an exothermic agent.
Claim 11
Dependent Claim
62 words
The composition of claim 1 wherein said foaming agent is selected from the group consisting of lecithin, polyglycerol esters of fatty acids having an HLB value of between 4.0 and 13.0, glycerol esters of fatty acids having an HLB vaue of between 2.5 and 4.5, sorbitan esters of fatty acids having an HLB value of between 3.0 and 7.0 and mixtures thereof.
Claim 12
Dependent Claim
18 words
The composition of claim 9 wherein said foaming agent comprises 2 to 40 wt. % of said composition.
Claim 13
Dependent Claim
18 words
The composition of claim 1 wherein said foaming agent is substantially comprised of at least one water-dispersible surfactant.
Claim 14
Dependent Claim
22 words
The composition of claim 1 wherein at least one of said liquid oil and said solid particles comprises an active non-therapeutic agent.
Claim 15
Dependent Claim
14 words
The composition of claim 1 wherein said liquid oil comprises an active therapeutic agent.
Claim 16
Dependent Claim
53 words
The composition of claim 14 wherein said liquid oil is selected from the group consisting of mineral oil, castor oil, fish liver oils, fish body oils, and oil-soluble materials selected from the group consisting of epinephrine, isoproterenol, phenylpropanolamine base, ephedrine, amphetamine, dibucaine, dyclonine base, lidocaine, chloral hydrate, benzyl benzoate, vitamins, and steroid hormones.
Claim 17
Dependent Claim
45 words
The composition of claim 1 wherein said liquid oil is selected from the group consisting of soybean oil, partially hydrogenated soybean oil, linseed oil, corn oil, peanut oil, sunflower oil, cottonseed oil, olive oil, liquid petrolatums, oleic acids, lauric acids and mono- and diglyceride oils.
Claim 18
Dependent Claim
62 words
The composition of claim 1 wherein said propellant comprises 1 to 10 wt. % of said composition, said foaming agent comprises 2 to 40 wt. % of said composition, said solid particles comprise at least 15 wt. % of said composition and are insoluble in the other ingredients of said foam composition, and the balance of said composition is said liquid oil.
Claim 19
Dependent Claim
68 words
As an article of manufacture, a pressurized aerosol container, said container having therein an edible, anhydrous aerosol foam composition comprising a foamable liquid oil, a foaming agent, a propellant, said propellant being present in an amount sufficient to produce a stable, measurable foam but insufficient to produce a spray when said composition is ejected through an aerosol valve, and at least 15% by weight of dispersed solid particles.
Claim 20
Dependent Claim
68 words
As an article of manufacture, a pressurized aerosol container, said container having therein an edible, anhydrous aerosol foam composition comprising a foamable liquid oil, a foaming agent, a propellant, said propellant being present in an amount sufficient to produce a stable, measurable foam but insufficient to produce a spray when said composition is ejected through an aerosol valve, and at least 15% by weight of dispersed solid particles.
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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) | 1991-06-21 | 1991-12-21 | 1992-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-21 | 1995-12-21 | 1996-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-21 | 1999-12-21 | 2000-06-21 | $7700.00 | Window Closed / Lapsed |