US3762875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Odor sealing method
Assignee: Individual
•
Filing: 1971-05-12
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Granted: 1973-10-02
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Expires: 1991-05-12
Abstract
Abstract An odor-sealing composition which contains a foam-forming agent which forms an odor-sealing foam cushion on contact with water. The composition may additionally contain deodorizing, odorimproving, disinfecting, and/or cleaning additives. It is used in liquid, pulverulent, granulated, or compressed shaped form or as an aerosol. It can be applied upon a sheet-like carrier such as paper or the carrier can be impregnated therewith. The method involves forming a layer of foam on the surface of the water in a toilet bowl before using the toilet.
Inventors
- 👤 H Burmeister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:51
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0052; A; A61; A61L; A61L11/00; A61L9/00; A61L9/015; A61L9/04; A61L9/05; C11D17/00; C11D17/0043; C11D3/48; Y; Y10; Y10S; Y10S422/00; Y10S422/90
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
92 words
In a method of substantially eliminating bad odors on using toilets and preventing their dissipation into the atmosphere, the steps which comprise: a. placing a composition into the toilet bowl before using the toilet, said composition forming a foam by the interaction of an acidic agent and an agent yielding a gas on contact with said acidic agent, and b. producing a stable foam cushion in said toilet bowl, said preformed foam cushion enveloping and sealing the excrements discharged on using the toilet, thereby substantially eliminating bad odor caused by said excrements.
Claim 2
Dependent Claim
64 words
The method of claim 2, in which the acidic agent is an agent selected from the group consisting of an inorganic acid, an organic acid, and an acid salt of said acids, while the agent yielding a gas with said acidic agent is an agent selected from the group consisting of an alkali metal carbonate, an alkali metal bicarbonate, ammonium carbonate, and ammonium bicarbonate.
Claim 3
Dependent Claim
87 words
In a method of substantially eliminating bad odors on using toilets and preventing their dissipation into the atmosphere, the steps which comprise a. spraying a composition into the toilet bowl before using the toilet, said composition being an aerosol cOmposition, said aerosol composition containing a vigorously foaming surface active agent and a propellant, and b. producing a stable foam cushion in said toilet bowl, said preformed foam cushion enveloping and sealing the excrements discharged on using the toilet, thereby substantially eliminating bad odor caused by said excrements.
Claim 4
Dependent Claim
56 words
The method of claim 4, in which the vigorously foaming surface active agent is an agent selected from the group consisting of an anionic surface active agent and an amphoteric surface active agent and the propellant is a propellant selected from the group consisting of a hydrocarbon propellant, a halogenated hydrocarbon propellant, carbon dioxide, and nitrogen.
Claim 5
Dependent Claim
52 words
The method of claim 4, in which the vigorously foaming surface active agent is an agent selected from the group consisting of an alkyl sulfonate, an alkyl aryl sulfonate, an aryl sulfonate, an alkyl sulfate, an alkyl aryl sulfate, an aryl sulfate, and a betaine while the propellant is a fluorinated hydrocarbon.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |