Patent US4419573A successfully refreshed from Google Patents.
Patent US4291072A successfully refreshed from Google Patents.
US4291072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing air-permeable fabric conditioner sheet for laundry dryer
Assignee: PII ACQUISITIONS Inc A CORP OF
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Filing: 1978-11-20
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Granted: 1981-09-22
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Expires: 1998-11-20
Abstract
Abstract A fabric conditioner composition is applied to an air-permeable sheet and variably displaced so that the conditioner occludes interior interstitial spaces in certain regions of the sheet to block air flow therethrough, leaving other regions of the sheet with interstitially open spaces.
Inventors
- 👤 John H. Barrett
- 👤 Brian P. Flynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:21
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/04; C11D17/041; C11D17/047; D; D06; D06M; D06M13/00; D06M13/322; D06M13/46; D06M23/00; D06F; D06F58/00; D06F58/20; D06F58/203
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
130 words
The method of producing a fabric conditioner to be used in a laundry dryer, that includes (a) treating an air permeable sheet, including distributing a fabric conditioner composition on the surface of said sheet, (b) said treating including variably displacing said distributed composition on the sheet by application of displacing media thereto thereby providing substantially regularly distributed composition concentrations occluding interior interstitial spaces at certain regions of the sheet interior to block airflow therethrough, and greater air permeability at other sheet interior regions located adjacent to and between said concentrations than at said concentrations, said other regions of the sheet characterized by interstitially open spaces including relatively larger spaces from which conditioner composition has been removed by said variable displacement step, and relatively smaller spaces at which conditioner composition remains.
Claim 2
Independent Claim
130 words
The method of producing a fabric conditioner to be used in a laundry dryer, that includes (a) treating an air permeable sheet, including distributing a fabric conditioner composition on the surface of said sheet, (b) said treating including variably displacing said distributed composition on the sheet by application of displacing media thereto thereby providing substantially regularly distributed composition concentrations occluding interior interstitial spaces at certain regions of the sheet interior to block airflow therethrough, and greater air permeability at other sheet interior regions located adjacent to and between said concentrations than at said concentrations, said other regions of the sheet characterized by interstitially open spaces including relatively larger spaces from which conditioner composition has been removed by said variable displacement step, and relatively smaller spaces at which conditioner composition remains.
Claim 3
Independent Claim
141 words
The method of producing a fabric conditioner usable in a laundry dryer that includes applying a fabric conditioner composition to an air-permeable sheet, and projecting gas jets against the sheet variably displacing the applied composition from the paths of the gas jets thereby providing substantially regularly distributed composition concentrations impregnating and occluding interior interstitial spaces in certain regions of the sheet interior to block airflow therethrough, and greater air permeability at other sheet interior regions located adjacent to and between said concentrations than at said concentrations, said other regions of the sheet characterized by interstitially open spaces including relatively larger spaces from which conditioner composition has been removed by said gas jets, and relatively smaller spaces which contain remanent conditioner composition, said jets being projected in spaced relation corresponding to the relative spacing of said other interior regions of the sheet.
Claim 4
Independent Claim
141 words
The method of producing a fabric conditioner usable in a laundry dryer that includes applying a fabric conditioner composition to an air-permeable sheet, and projecting gas jets against the sheet variably displacing the applied composition from the paths of the gas jets thereby providing substantially regularly distributed composition concentrations impregnating and occluding interior interstitial spaces in certain regions of the sheet interior to block airflow therethrough, and greater air permeability at other sheet interior regions located adjacent to and between said concentrations than at said concentrations, said other regions of the sheet characterized by interstitially open spaces including relatively larger spaces from which conditioner composition has been removed by said gas jets, and relatively smaller spaces which contain remanent conditioner composition, said jets being projected in spaced relation corresponding to the relative spacing of said other interior regions of the sheet.
Claim 5
Dependent Claim
18 words
The method of claim 2 in which said applied fabric conditioner as applied to the sheet is moist.
Claim 6
Dependent Claim
19 words
The method of claim 2 in which gas streams are projected through sheet interstitial spaces in a predetermined pattern.
Claim 7
Dependent Claim
20 words
The method of claim 2 wherein each jet is projected to have about 1/16 inch in overall cross sectional dimension.
Claim 8
Dependent Claim
18 words
The method of claim 2 wherein said jets are projected to have centers with about 1/6 inch spacing.
Claim 9
Dependent Claim
25 words
The method of claim 2 wherein said sheet consists of fabric selected from the group consisting of rayon, polyester, nylon, polyacrylonitrile, polyolefin, cellulose, and polyurethane.
Claim 10
Dependent Claim
13 words
The method of claim 2 wherein said composition consists of a fabric softener.
Claim 11
Independent Claim
74 words
The method of producing a fabric conditioner usable in a laundry dryer that includes applying a fabric conditioner composition to an air permeable sheet, projecting gas jets against the sheet and displacing the fabric conditioner composition from the paths of the gas jets and in spaced stripe-like courses on the sheet defining relatively thick and thin concentrations of conditioner composition, the jets being projected in spaced relation corresponding to the spacing of said courses.
Claim 12
Independent Claim
74 words
The method of producing a fabric conditioner usable in a laundry dryer that includes applying a fabric conditioner composition to an air permeable sheet, projecting gas jets against the sheet and displacing the fabric conditioner composition from the paths of the gas jets and in spaced stripe-like courses on the sheet defining relatively thick and thin concentrations of conditioner composition, the jets being projected in spaced relation corresponding to the spacing of said courses.
Claim 13
Dependent Claim
22 words
The method of claim 9 wherein said displacement is carried out so that said courses are formed with about 1/12 inch widths.
Claim 14
Dependent Claim
14 words
The method of claim 9 including drying the sheet and fabric conditioner composition courses.
Claim 15
Dependent Claim
29 words
The method of claim 9 including heating the sheet and conditioner composition before said displacement step, and cooling the sheet and said conditioner composition courses after said displacing step.
Claim 16
Independent Claim
132 words
The method of producing a fabric conditioner to be employed in a laundry dryer, and using an air permeable sheet that includes (a) passing the sheet through a liquid bath of a fabric conditioner composition in a solvent, thereby to impregnate the sheet with said composition, (b) removing excess composition from the sheet, (c) passing the impregnated sheet through a heating zone to remove said solvent, whereby essentially only dried conditioner composition remains on the sheet, (d) directing gas jets at the traveling sheet to blow conditioner composition from predetermined zones of the sheet and to form spaced stripe-like courses of dried conditioner composition remanent on the sheet, the jets being so directed in spaced apart relation corresponding to the spacing of said courses, and (e) cooling the sheet, for subsequent sizing.
Claim 17
Independent Claim
132 words
The method of producing a fabric conditioner to be employed in a laundry dryer, and using an air permeable sheet that includes (a) passing the sheet through a liquid bath of a fabric conditioner composition in a solvent, thereby to impregnate the sheet with said composition, (b) removing excess composition from the sheet, (c) passing the impregnated sheet through a heating zone to remove said solvent, whereby essentially only dried conditioner composition remains on the sheet, (d) directing gas jets at the traveling sheet to blow conditioner composition from predetermined zones of the sheet and to form spaced stripe-like courses of dried conditioner composition remanent on the sheet, the jets being so directed in spaced apart relation corresponding to the spacing of said courses, and (e) cooling the sheet, for subsequent sizing.
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) | 1984-09-21 | 1985-03-23 | 1985-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-21 | 1989-03-23 | 1989-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-21 | 1993-03-23 | 1993-09-22 | $7700.00 | Window Closed / Lapsed |