US4272393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas generating cleaning article
Assignee: Individual
•
Filing: 1979-12-27
•
Granted: 1981-06-09
•
Expires: 1999-12-27
Abstract
Abstract A cleaning pad comprises a porous flexible substrate impregnated with detergent, adhesive, a gas-generating compound and a compound to trigger release of gas by the gas-generating compound.
Inventors
- 👤 Gerhard Gergely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:03
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/04; C11D17/049; A; A47; A47K; A47K7/00; A47K7/02; A47K7/03; A47L; A47L13/00; A47L13/10; A47L13/16; A47L13/17; C11D3/00; C11D3/0005; C11D3/0052
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
117 words
In a cleaning material comprising a porous flexible support impregnated with a detergent selected from the group consisting of anionic, cationic and non-ionogenic surfactants, and a water-soluble adhesive, the improvement wherein said support is also coated or impregnated with (1) at least one gas-generating substance selected from the group consisting of calcium hydride, sodium borohydride, a substance for generating oxygen in water, and a substance for generating CO 2 in water; and, when said gas-generating substance is a said substance for generating oxygen in water or for generating CO 2 in water, said support additionally contains (2) a material for triggering the generation in water of a gas selected from said oxygen and said CO 2 .
Claim 2
Dependent Claim
117 words
In a cleaning material comprising a porous flexible support impregnated with a detergent selected from the group consisting of anionic, cationic and non-ionogenic surfactants, and a water-soluble adhesive, the improvement wherein said support is also coated or impregnated with (1) at least one gas-generating substance selected from the group consisting of calcium hydride, sodium borohydride, a substance for generating oxygen in water, and a substance for generating CO 2 in water; and, when said gas-generating substance is a said substance for generating oxygen in water or for generating CO 2 in water, said support additionally contains (2) a material for triggering the generation in water of a gas selected from said oxygen and said CO 2 .
Claim 3
Dependent Claim
36 words
A cleaning material as in claim 1, wherein said support contains a peroxo compound as the substance generating oxygen and at least one alkali as the material for triggering the generation of said oxygen in water.
Claim 4
Dependent Claim
18 words
A cleaning material as in claim 2, wherein the substance generating oxygen consists of an inorganic peroxo compound.
Claim 5
Dependent Claim
17 words
A cleaning material according to claim 2 wherein said peroxo compound is potassium monopersulfate or sodium perborate.
Claim 6
Dependent Claim
18 words
A cleaning material as in claim 2, said generation of oxygen is caused by an organic peroxo compound.
Claim 7
Dependent Claim
51 words
A cleaning material as in claim 1, wherein said support contains carbonate or bicarbonate as the gas-generating substance, and the material for triggering the generation of CO 2 from said carbonate or bicarbonate is selected from the group consisting of an acid and a salt exhibiting acid reaction in aqueous solution.
Claim 8
Dependent Claim
27 words
A cleaning material according to claim 6 wherein said material for triggering the generation of CO 2 is fumaric acid, citric acid, tartaric acid or sodium bisulphite.
Claim 9
Dependent Claim
35 words
A cleaning material in accordance with claim 1, wherein the materials impregnated in said support including said detergent, said adhesive, and said at least one gas-generating substance, are present as a single mixture of components.
Claim 10
Dependent Claim
44 words
A cleaning material in accordance with claim 1, wherein said gas-generating substance is impregnated in said support in first areas, and the at least one material for triggering said gas-generating substance is impregnated in said support in second areas separate from said first areas.
Claim 11
Dependent Claim
29 words
A cleaning material as in claim 9, said first and second areas being present on the support separate from each other in the form of adjacent strips or spots.
Claim 12
Dependent Claim
33 words
A cleaning material as in claim 9, wherein said first and second areas are present on opposite sides of the support to a depth of penetration which avoids reciprocal contact between the components.
Claim 13
Dependent Claim
45 words
A cleaning material as in claim 9, wherein said first area is on a first support and said second area is on a second support, which first and second supports are joined into a unit at their faces by means of a separating joining layer.
Claim 14
Dependent Claim
18 words
A cleaning material as in claim 1, wherein said flexible support is also impregnated with micronized silicic acid.
Claim 15
Dependent Claim
55 words
A method of using the cleaning material of claim 1 comprising wetting said flexible impregnated support and thereby bringing together said gas-generating substance and said surfactant to effect the generation of surfactant containing bubbles, and applying said wetted flexible support to a work to be cleaned and scouring said work with said wetted flexible support.
Claim 16
Dependent Claim
13 words
A method in accordance with claim 14, wherein said work is window glass.
Claim 17
Dependent Claim
32 words
A method in accordance with claim 14, wherein said work is metal and said flexible support is also impregnated with micronized silicic acid, said gas-generating substance comprising calcium hydride or sodium borohydride.
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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) | 1984-06-08 | 1984-12-08 | 1985-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-08 | 1988-12-08 | 1989-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-08 | 1992-12-08 | 1993-06-09 | $7700.00 | Window Closed / Lapsed |