Patent US4297860A successfully refreshed from Google Patents.
US4297860A
Expired / Lapsed
US
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Device for applying foam to textiles
Assignee: Westpoint Pepperell Inc
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Filing: 1980-07-23
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Granted: 1981-11-03
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Expires: 2000-07-23
Abstract
Abstract Metered amounts of air and liquid are mixed to produce a foam which is directed to an applicator. The applicator includes an apertured spreading plate, a bed of porous material, and a contour which converges towards a discharge orifice to uniformly distribute the foam across the orifice.
Inventors
- 👤 Joseph A. Pacifici
- 👤 Jerry L. White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:41
CPC Classifications
D; D06; D06B; D06B19/00; D06B19/0088; D06B19/0094; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/235; B01F25/00; B01F25/40; B01F25/45; B01F25/452; B01F25/4524; B01F25/45241; B29; B29C; B29C44/00; B29C44/34; B29C44/3469; B29C44/3473; B29C44/36; B29C44/46; B29C44/461; Y; Y10; Y10S; Y10S68/00; Y10S68/90
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
92 words
A device for applying foam to textiles, comprising: a source of foam; an applicator joined to said source for receiving foam therefrom, said applicator comprising first and second portions separated by an apertured plate, said first portion being joined to the source for receiving foam therefrom, said foam being spread across the applicator by the plate and passing through the apertures therein to said second portion, said second portion containing porous material and having a configuration which converges towards an elongated discharge orifice whereby said foam is uniformly distributed across the orifice.
Claim 2
Independent Claim
92 words
A device for applying foam to textiles, comprising: a source of foam; an applicator joined to said source for receiving foam therefrom, said applicator comprising first and second portions separated by an apertured plate, said first portion being joined to the source for receiving foam therefrom, said foam being spread across the applicator by the plate and passing through the apertures therein to said second portion, said second portion containing porous material and having a configuration which converges towards an elongated discharge orifice whereby said foam is uniformly distributed across the orifice.
Claim 3
Dependent Claim
26 words
A device as set forth in claim 1, wherein said second portion of the applicator is trapezoidal in cross-section as it converges towards said discharge orifice.
Claim 4
Dependent Claim
22 words
A device as set forth in claim 2, wherein the porous material in said second portion of the applicator comprises spherical beads.
Claim 5
Dependent Claim
20 words
A device as set forth in claim 1, further comprising means for selectively altering the size of said discharge orifice.
Claim 6
Dependent Claim
72 words
A device as set forth in claim 1, wherein said source of foam comprises: means for mixing liquid and air to develop a jet of the mixture; a foamer joined to the mixing means for receiving said jet, said foamer including porous material through which the mixture passes to produce a foam having a desired bubble size; and means connecting the foamer to said applicator for supplying the foam to the applicator.
Claim 7
Dependent Claim
32 words
A device as set forth in claim 5, wherein said foamer includes: a plurality of chambers for sequentially receiving said mixture as it passes through the foamer, each chamber including porous material.
Claim 8
Dependent Claim
25 words
A device as set forth in claim 6, wherein said porous material in the foamer comprises spherical beads of a different size in each chamber.
Claim 9
Independent Claim
127 words
A device for applying foam to textiles, comprising: means for mixing liquid and air to develop a jet of the mixture; a foamer joined to the mixing means for receiving said jet, said foamer including porous material through which the mixture passes to produce a foam having a desired bubble size; an applicator joined to said foamer, said applicator comprising first and second portions separated by an apertured plate, said first portion being joined to the foamer for receiving foam therefrom, said foam being spread across the applicator by the plate and passing through the apertures therein to said second portion, said second portion containing porous material and having a configuration which converges towards an elongated discharge orifice whereby said foam is uniformly distributed across the orifice.
Claim 10
Independent Claim
127 words
A device for applying foam to textiles, comprising: means for mixing liquid and air to develop a jet of the mixture; a foamer joined to the mixing means for receiving said jet, said foamer including porous material through which the mixture passes to produce a foam having a desired bubble size; an applicator joined to said foamer, said applicator comprising first and second portions separated by an apertured plate, said first portion being joined to the foamer for receiving foam therefrom, said foam being spread across the applicator by the plate and passing through the apertures therein to said second portion, said second portion containing porous material and having a configuration which converges towards an elongated discharge orifice whereby said foam is uniformly distributed across the orifice.
Claim 11
Dependent Claim
26 words
A device as set forth in claim 8, wherein said second portion of the applicator is trapezoidal in cross-section as it converges towards said discharge orifice.
Claim 12
Dependent Claim
22 words
A device as set forth in claim 9, wherein the porous material in the second portion of the applicator comprises spherical beads.
Claim 13
Dependent Claim
20 words
A device as set forth in claim 10, further comprising means for selectively altering the size of said discharge opening.
Claim 14
Dependent Claim
32 words
A device as set forth in claim 8, wherein said former includes: a plurality of chambers for sequentially receiving said mixture as it passes through the foamer, each chamber including porous material.
Claim 15
Dependent Claim
25 words
A device as set forth in claim 12, wherein said porous material in the foamer comprises spherical beads of a different size in each chamber.
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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) | 1984-11-02 | 1985-05-04 | 1985-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-02 | 1989-05-04 | 1989-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-02 | 1993-05-04 | 1993-11-03 | $7700.00 | Window Closed / Lapsed |