US4229408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and composition for toilet holding tank
Assignee: CBM Enterprises Inc
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Filing: 1979-04-30
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Granted: 1980-10-21
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Expires: 1999-04-30
Abstract
Abstract A method and composition for controlling odor emission from toilet holding tanks for prolonged intervals of at least 48 hours consisting essentially of adding to the toilet holding tank an effective amount of an additive composition consisting essentially of a quaternary compound selected from the class consisting of alkyl dimethyl benzyl ammonium chloride and alkyl diethyl benzyl ammonium chloride where the alkyl group contains 12-18 carbon atoms, inclusive; formaldehyde; and an acid buffer sufficient to buffer the composition in the toilet system to a pH in the range of 4-5. The effective amount is that which is sufficient to maintain a concentration of at least 100 parts per million of the additive composition throughout the prolonged interval.
Inventors
- 👤 James D. Bennett
- 👤 Jimmy R. Coolidge
- 👤 Clifford E. Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:28
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/01; A01; A01N; A01N35/00; A01N35/02
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
130 words
A method of controlling odor emission from a toilet system in a toilet holding tank for a prolonged interval of 48 hours and more consisting essentially of adding to the toilet holding tank an effective amount of an additive composition consisting essentially of: a. a quaternary compound selected from the group consisting of alkyl dimethyl benzyl ammonium chlorides and alkyl diethyl benzyl ammonium chlorides, where the alkyl group contains 12 to 18 carbon atoms, inclusive; b. formaldehyde; and c. an acid buffer in sufficient concentration to buffer said additive composition in the toilet system to a pH in the range of 4-5; said effective amount being that which is sufficient to maintain a concentration of at least one hundred parts per million of said additive composition throughout the prolonged interval.
Claim 2
Independent Claim
130 words
A method of controlling odor emission from a toilet system in a toilet holding tank for a prolonged interval of 48 hours and more consisting essentially of adding to the toilet holding tank an effective amount of an additive composition consisting essentially of: a. a quaternary compound selected from the group consisting of alkyl dimethyl benzyl ammonium chlorides and alkyl diethyl benzyl ammonium chlorides, where the alkyl group contains 12 to 18 carbon atoms, inclusive; b. formaldehyde; and c. an acid buffer in sufficient concentration to buffer said additive composition in the toilet system to a pH in the range of 4-5; said effective amount being that which is sufficient to maintain a concentration of at least one hundred parts per million of said additive composition throughout the prolonged interval.
Claim 3
Dependent Claim
28 words
The method of claim 1 wherein said effective amount of said additive composition is 2500-3000 parts per million, based on the average in-use volume of said holding tank.
Claim 4
Dependent Claim
23 words
The method of claim 1 wherein said effective amount of said additive composition is 5000-6000 parts per million, based on the initial charge.
Claim 5
Dependent Claim
36 words
The method of claim 1 wherein an amount of said additive composition is employed that is sufficient to effect initially at least one thousand parts per million in said toilet system in said toilet holding tank.
Claim 6
Dependent Claim
60 words
The method of claim 4, wherein said formaldehyde is employed in liquid form comprising an aqueous solution of from 20-40 percent weight formaldehyde and said additive composition is employed in a proportion as follows: in a ten-gallon toilet holding tank, 20-40 grams of quaternary compound, comprising 80 percent active ingredient, 30-50 milliliters liquid form formaldehyde and 2-20 grams acid buffer.
Claim 7
Dependent Claim
64 words
The method of claim 1 wherein said additive composition is initially present in an amount of at least one thousand parts per million; and said additive composition comprises 20-40 percent by weight of said quaternary compound, 20-50 percent by weight of an aqueous solution containing 20-40 percent by weight of formaldehyde, 1-10 percent by weight of acid buffer and 30-67 percent by weight water.
Claim 8
Dependent Claim
55 words
The method of claim 6 wherein said acid buffer is potassium acid phthalate and said quaternary compound is an alkyl dimethyl benzyl ammonium chloride, where said alkyl group comprises a mixture of groups having about 40 percent containing 12 carbon atoms, about 50 percent containing 14 carbon atoms, about 10 percent containing 16 carbon atoms.
Claim 9
Dependent Claim
89 words
An additive composition consisting essentially of ingredients for controlling odors in a toilet system in a holding tank consisting essentially of a quaternary compound selected from the group consisting of alkyl dimethyl benzyl ammonium chlorides and alkyl diethyl benzyl ammonium chlorides, where the alkyl group contains 12-18 carbon atoms, inclusive; formaldehyde; and an acid buffer sufficient to buffer said additive composition in the toilet system to a pH in the range of 4-5, the concentration of acid buffer being at least one percent by weight of said additive composition.
Claim 10
Dependent Claim
89 words
An additive composition consisting essentially of ingredients for controlling odors in a toilet system in a holding tank consisting essentially of a quaternary compound selected from the group consisting of alkyl dimethyl benzyl ammonium chlorides and alkyl diethyl benzyl ammonium chlorides, where the alkyl group contains 12-18 carbon atoms, inclusive; formaldehyde; and an acid buffer sufficient to buffer said additive composition in the toilet system to a pH in the range of 4-5, the concentration of acid buffer being at least one percent by weight of said additive composition.
Claim 11
Dependent Claim
58 words
The additive composition of claim 8 wherein said additive composition is in a pre-measured amount and contains 20-40 grams of said quaternary compound; 30-50 milliliters of an aqueous solution containing 20-40 percent by weight of formaldehyde; 2-20 grams of potassium acid phthalate and 30-100 milliliters of water; said amount being predetermined for a ten gallon toilet holding tank.
Claim 12
Dependent Claim
92 words
The additive composition of claim 8 wherein said quaternary compound is an alkyl dimethyl benzyl ammonium chloride, where said alkyl group comprises an admixture of alkyl moieties containing about 40 percent of a moiety having 12 carbon atoms, about 50 percent of a moiety having 14 carbon atoms, and about 10 percent of a moiety having 16 carbon atoms in an ethanol solution containing about 20 percent by volume ethanol; said acid buffer is potassium acid phthalate and said additive composition contains water in a proportion of about 30-67 percent by volume.
Claim 13
Dependent Claim
38 words
The composition of claim 10 wherein said additive composition contains about 20-40 percent by weight quaternary compound; about 20-50 percent by volume aqueous solution containing about 37 percent by weight formaldehyde; 1-10 percent by weight potassium acid phthalate.
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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) | 1983-10-21 | 1984-04-21 | 1984-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-21 | 1988-04-21 | 1988-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-21 | 1992-04-21 | 1992-10-21 | $7700.00 | Window Closed / Lapsed |