US4184615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam dispensing device
Assignee: Individual
•
Filing: 1977-04-11
•
Granted: 1980-01-22
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Expires: 1997-04-11
Abstract
Abstract This foam dispensing device includes a flexible container for foamable liquid having a discharge opening at one end. The container is provided with a foam producing assembly which includes a passage leading to the discharge opening and at least one porous member mounted in the passage and having a foam discharging area greater than the cross-sectional area of the passage at the mounting location.
Inventors
- 👤 Hershel E. Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:39
CPC Classifications
A; A45; A45D; A45D27/00; A45D27/02; A47; A47K; A47K5/00; A47K5/14; B; B05; B05B; B05B11/00; B05B11/0005; B05B11/0059; B05B11/01; B05B11/04; B05B11/042; B05B11/043; B05B11/046; B05B7/00; B05B7/0018; B05B7/0025; B05B7/0031; B05B7/0037
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
98 words
A foam dispensing device comprising: (a) a flexible container for holding a foamable liquid and air having a discharge port, (b) foam producing means separating the area adjacent said discharge port and the interior of the container including: (1) passage means from the interior of the container leading to the discharge port, said passage means having a cross sectional area smaller than the container, (2) at least one porous member mounted in the passage means, the porous member having a foam discharging surface area greater than the minimum cross-sectional area of the passage means at the mounting location.
Claim 2
Dependent Claim
98 words
A foam dispensing device comprising: (a) a flexible container for holding a foamable liquid and air having a discharge port, (b) foam producing means separating the area adjacent said discharge port and the interior of the container including: (1) passage means from the interior of the container leading to the discharge port, said passage means having a cross sectional area smaller than the container, (2) at least one porous member mounted in the passage means, the porous member having a foam discharging surface area greater than the minimum cross-sectional area of the passage means at the mounting location.
Claim 3
Dependent Claim
39 words
A foam dispensing device as defined in claim 1, in which: (c) the foam producing means includes a primary foam producing stage and a secondary foam producing stage, at least said secondary foam producing stage including said porous member.
Claim 4
Dependent Claim
66 words
A foam dispensing device as defined in claim 1, in which: (c) the foam producing means includes a primary foam producing stage and a secondary foam producing stage disposed outwardly of said primary foam producing stage, each of said foam producing stages including a porous member having a foam discharge surface area greater than the minimum cross-sectional area of the passage means at the mounting location.
Claim 5
Dependent Claim
38 words
A foam dispensing device as defined in claim 1, in which: (c) the porous member includes a mounting portion engageable with the sides of the passage and a foam discharge portion spaced from the sides of the passage.
Claim 6
Dependent Claim
41 words
A foam dispensing device as defined in claim 2, in which: (d) the porous member is hollow and includes a mounting portion engageable with the sides of the passage and a foam discharge portion spaced from the sides of the passage.
Claim 7
Dependent Claim
24 words
A foam dispensing device as defined in claim 5, in which: (d) the hollow porous member foam discharge portion has a substantially conical configuration.
Claim 8
Dependent Claim
105 words
A foam dispensing device comprising: (a) a flexible container for holding a foamable liquid and air having a discharge port, (b) foam producing means separating the area adjacent said discharge port and the interior of the container including: (1) passage means leading to the discharge port, (2) a primary foam producing stage and a secondary foam producing stage disposed outwardly of the primary foam producing stage, said secondary foam producing stage including a stationary porous member mounted in the passage means, the porous member having a foam discharging surface area greater than the minimum cross-sectional area of the passage means at the fixed mounting location.
Claim 9
Dependent Claim
105 words
A foam dispensing device comprising: (a) a flexible container for holding a foamable liquid and air having a discharge port, (b) foam producing means separating the area adjacent said discharge port and the interior of the container including: (1) passage means leading to the discharge port, (2) a primary foam producing stage and a secondary foam producing stage disposed outwardly of the primary foam producing stage, said secondary foam producing stage including a stationary porous member mounted in the passage means, the porous member having a foam discharging surface area greater than the minimum cross-sectional area of the passage means at the fixed mounting location.
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) | 1983-01-21 | 1983-07-23 | 1984-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-21 | 1987-07-23 | 1988-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-21 | 1991-07-23 | 1992-01-22 | $7700.00 | Window Closed / Lapsed |