US3589685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing and foam-producing device
Assignee: Individual
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Filing: 1969-02-06
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Granted: 1971-06-29
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Expires: 1989-02-06
Abstract
Abstract A mixing and foam-producing device includes a container closed at one end and holding a predetermined quantity of foam-producing agent therein. A removable cover closes the other end of the container to define a closed chamber of predetermined quantity. Extending through the cover is a rod with a piston attached thereto for intermittently moving toward and away from the foamproducing agent whereby a liquid which is placed in the chamber mixes with air and foam-producing agent to create a foam. Indicating means are also provided to control the relationship between the volumes of liquid and air in the chamber.
Inventors
- 👤 Frederick John Gradishar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:57
CPC Classifications
A; A61; A61Q; A61Q9/00; A61Q9/02; A23; A23P; A23P30/00; A23P30/40; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/046; A61Q5/00; A61Q5/10; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/235; B01F31/00; B01F31/44; B01F31/441; B01F33/00; B01F33/50; B01F33/501; B01F33/5011
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
176 words
A mixing and foam-producing device comprising a container, means at one end of said container for closing said container at said one end thereof and for holding a quantity of foam-producing agent, a removable cover closing the other end of said container to define a closed chamber of predetermined quantity between said cover and the foam-producing agent, a rod extending through said cover into said chamber, a plunger at the end of said rod for intermittently moving toward and away from said foam-producing agent whereby a liquid may be placed in said chamber and be caused to mix with air in said chamber and the foam-producing agent to create foam by the mixing action thereof, indicating means for controlling the relationship between the volumes of liquid and air in said chamber, said holding means including a removable foam-producing agent housing, adjusting means connecting said housing to said container for controlling the level of said foam-producing agent with respect to said one end of said container, and said indicating means being an index mark on said container.
Claim 2
Dependent Claim
159 words
A mixing and foam-producing device comprising a container, means at one end of said container for closing said container at said one end thereof and for holding a quantity of foam-producing agent, a removable cover closing the other end of said container to define a closed chamber of predetermined quantity between said cover and the foam-producing agent, a rod extending through said cover into said chamber, a plunger at the end of said rod for intermittently moving toward and away from said foam-producing agent whereby a liquid may be placed in said chamber and be caused to mix with air in said chamber and the foam-producing agent to create foam by the mixing action thereof, indicating means for controlling the relationship between the volumes of liquid and air in said chamber, said foam-producing agent being disposed adjacent the bottom of said chamber, a sponge being above said foam-producing agent for holding a quantity of liquid inserted into said chamber.
Claim 3
Dependent Claim
167 words
A mixing and foam-producing device comprising a container, means at one end of said container for closing said container at said one end thereof and for holding a quantity of foam-producing agent, a removable cover closing the other end of said container to define a closed chamber of predetermined quantity between said cover and the foam-producing agent, a rod extending through said cover into said chamber, a plunger at the end of said rod for intermittently moving toward and away from said foam-producing agent whereby a liquid may be placed in said chamber and be caused to mix with air in said chamber and the foam-producing agent to create foam by the mixing action thereof, indicating means for controlling the relationship between the volumes of liquid and air in said chamber, said indicating means including a metering cup secured to the exposed end of said rod to hold a predetermined quantity of liquid therein and to act as grasping means to facilitate the manipulation of said rod.
Claim 4
Dependent Claim
31 words
A device as set forth in claim 4 wherein said holding means is a reservoir at said one end of said container, and a thin spongelike disc being above said reservoir.
Claim 5
Dependent Claim
18 words
A device as set forth in claim 4 including biasing means for urging said plunger against said cover.
Claim 6
Dependent Claim
51 words
A device as set forth in claim 4 including a perforated protective disc disposed in said one end of said container for preventing direct contact between said plunger and the foam-producing agent, and said plunger having a multiplicity of relatively small perforations therein to enhance the intermixing of air and liquid.
Claim 7
Dependent Claim
37 words
A device as set forth in claim 4 wherein said metering cup is of greater capacity than said predetermined quantity of liquid, and indexing means being in said metering cup at the level of said predetermined quantity.
Claim 8
Dependent Claim
16 words
A device as set forth in claim 8 wherein said indexing means is a metering orifice.
Claim 9
Dependent Claim
32 words
A device as set forth in claim 4 wherein said holding means is a spongelike pad disposed at said one end of said container and having said foam producing agent absorbed therein.
Claim 10
Dependent Claim
50 words
A device as set forth in claim 10 wherein said foam-producing agent is a shaving cream, the proportion of said volume of air to said volume of liquid being about 10-15 to 1, said chamber being of about 60 ml. capacity, and said metering cup being of about 4ml. capacity.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |