US4410441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Product for treating fabrics in a washing machine
Assignee: Lever Brothers Co
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Filing: 1982-04-26
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Granted: 1983-10-18
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Expires: 2002-04-26
Abstract
Abstract A fabric treatment product is in the form of a bag having at least two compartments containing particulate fabric treatment compositions. The bag has a first outer wall and an intermediate wall of water-insoluble but water-permeable material such as paper or nonwoven fabric, and a second outer wall of water-impermeable water-insoluble plastics sheet. In the washing machine the wash water first enters the compartment bounded by the first outer wall, which is water-permeable, and dissolves or disperses out its contents, for example, a detergent composition. The water subsequently penetrates the intermediate wall to enter the second compartment and dissolve or disperse out its contents, for example, a fabric conditioner.
Inventors
- 👤 James F. Davies
- 👤 John B. Tune
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:16
CPC Classifications
D; D06; D06M; D06M23/00; B; B65; B65D; B65D81/00; B65D81/32; B65D81/3261; C; C11; C11D; C11D17/00; C11D17/04; C11D17/041; C11D17/046; D06F; D06F39/00; D06F39/02; D06F39/024
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
92 words
A fabric treatment product in the form of a bag, treatment being in a washing machine, the bag having two compartments and having a first outer wall formed of water-permeable water-insoluble material and bounding a first compartment of the bag; a second outer wall formed of water-impermeable water-insoluble synthetic plastics material and bounding a second compartment of the bag; an intermediate wall formed of water-permeable water-insoluble material and dividing the bag into said first and second compartments; said first and said second compartments containing the same or different particulate fabric treatment compositions.
Claim 2
Dependent Claim
92 words
A fabric treatment product in the form of a bag, treatment being in a washing machine, the bag having two compartments and having a first outer wall formed of water-permeable water-insoluble material and bounding a first compartment of the bag; a second outer wall formed of water-impermeable water-insoluble synthetic plastics material and bounding a second compartment of the bag; an intermediate wall formed of water-permeable water-insoluble material and dividing the bag into said first and second compartments; said first and said second compartments containing the same or different particulate fabric treatment compositions.
Claim 3
Dependent Claim
54 words
The fabric treatment product of claim 1, wherein one of said first and second compartments contains a particulate detergent composition and the other of said first and second compartments contains one or more fabric treatment compositions selected from the group consisting of detergent compositions, perfumes, bleaches, bleach precursors, fabric conditioning agents and anti-incrustation agents.
Claim 4
Dependent Claim
85 words
A fabric treatment product in the form of a bag, treatment being in a washing machine, the bag having at least two compartments and having a first outer wall formed of water-permeable water-insoluble material whose maximum pore size is less than about 100 microns, a second outer wall formed of water-impermeable water-insoluble synthetic plastics material, and at least one intermediate wall formed of water-permeable water-insoluble material, said first and second outer walls bounding different compartments within the bag, said compartments containing particulate fabric treatment compositions.
Claim 5
Dependent Claim
85 words
A fabric treatment product in the form of a bag, treatment being in a washing machine, the bag having at least two compartments and having a first outer wall formed of water-permeable water-insoluble material whose maximum pore size is less than about 100 microns, a second outer wall formed of water-impermeable water-insoluble synthetic plastics material, and at least one intermediate wall formed of water-permeable water-insoluble material, said first and second outer walls bounding different compartments within the bag, said compartments containing particulate fabric treatment compositions.
Claim 6
Dependent Claim
21 words
The product of claim 3, wherein said water-impermeable water-insoluble synthetic plastics sheet material of said second outer wall comprises thermoplastic material.
Claim 7
Dependent Claim
20 words
The product of claim 4, wherein both said outer walls comprise thermoplastic materials and the bag is closed by heat-sealing.
Claim 8
Dependent Claim
24 words
The product of claim 3, wherein said water-insoluble water-permeable sheet material of said first outer wall comprises paper or woven, knitted or nonwoven fabric.
Claim 9
Dependent Claim
19 words
The product of claim 3, wherein said intermediate wall is coated or laminated with a water-soluble or water-dispersible material.
Claim 10
Dependent Claim
27 words
The product of claim 3, wherein at least one of said compartments contains a fabric treatment composition including calcium carbonate, sodium aluminosilicate ion-exchange materials or mixtures thereof.
References Cited (Backward Citations)
GB1578951A
Cited
US4139475A
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US4082678A
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US4188304A
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GB2000177B
Cited
US4234442A
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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) | 1986-10-17 | 1987-04-18 | 1987-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-17 | 1991-04-18 | 1991-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-17 | 1995-04-18 | 1995-10-18 | $7700.00 | Window Closed / Lapsed |