US4557926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and tablet for sanitizing toilets
Assignee: Occidental Chemical Corp
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Filing: 1985-06-10
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Granted: 1985-12-10
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Expires: 2005-06-10
Abstract
Abstract Disclosed is a tablet for disinfecting flush toilets comprising from about 20% to about 90% alkali metal salt of dichloroisocyanuric acid and at least about 5% of either sodium bromide or potassium bromide. Also disclosed is a method of using the tablet.
Inventors
- 👤 G. Douglas Nelson
- 👤 Steve Vazopolos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:31
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/046; A; A01; A01N; A01N59/00; A61; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/05; C11D17/00; C11D17/0047; C11D17/0056; C11D3/395; C11D3/3955
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
69 words
A tablet suitable for disinfecting flush toilets comprising from about 20% by weight to about 90% weight of an alkali metal salt of dichloroisocyanuric acid and at least 5% by weight of bromine salt selected from the group consisting of sodium bromide and potassium bromide, said tablet being essentially free of sodiun carbonate/bicarbonate buffer mixtures, and capable of prolonged release of chlorine through metered dispensers when immersed in water.
Claim 2
Dependent Claim
69 words
A tablet suitable for disinfecting flush toilets comprising from about 20% by weight to about 90% weight of an alkali metal salt of dichloroisocyanuric acid and at least 5% by weight of bromine salt selected from the group consisting of sodium bromide and potassium bromide, said tablet being essentially free of sodiun carbonate/bicarbonate buffer mixtures, and capable of prolonged release of chlorine through metered dispensers when immersed in water.
Claim 3
Dependent Claim
11 words
A tablet of claim 1, further comprising a mold release agent.
Claim 4
Dependent Claim
9 words
A tablet of claim 1, further comprising trichloroisocyanuric acid.
Claim 5
Dependent Claim
10 words
A tablet of claim 1 further comprising an inert filler.
Claim 6
Dependent Claim
19 words
A tablet of claim 1 in which the alkali metal salt of dichloroisocyanuric acid is sodium dichloroisocyanuric acid dihydrate.
Claim 7
Dependent Claim
13 words
A tablet of claim 1 in which the bromine salt is potassium bromide.
Claim 8
Dependent Claim
99 words
A tablet suitable for disinfecting a flush toilet, comprising from about 20% by weight to about 52% by weight sodium dichloroisocyanuric acid dihydrate, from about 18% by weight to about 47% by weight potassium bromide, from about 0°% by weight to about 60by weight sodium chloride, and from about 1% by weight to about 5% by weight mold release agent, in which the ratio of sodium dichloroisocyanuric acid dihydrate to potassium bromide is substantially stoichiometric. Said tablet being essentially free of sodium carbonate/bicabonate buffer mixtures and capable of prolonged release of chlorine through metered dispensers when immersed in water.
Claim 9
Dependent Claim
99 words
A tablet suitable for disinfecting a flush toilet, comprising from about 20% by weight to about 52% by weight sodium dichloroisocyanuric acid dihydrate, from about 18% by weight to about 47% by weight potassium bromide, from about 0°% by weight to about 60by weight sodium chloride, and from about 1% by weight to about 5% by weight mold release agent, in which the ratio of sodium dichloroisocyanuric acid dihydrate to potassium bromide is substantially stoichiometric. Said tablet being essentially free of sodium carbonate/bicabonate buffer mixtures and capable of prolonged release of chlorine through metered dispensers when immersed in water.
Claim 10
Dependent Claim
98 words
A tablet suitable for disinfecting a flush toilet comprising from about 50% by weight to about 75% by weight of sodium dichloroisocyanuric acid dihydrate, from about 5% by weight to about 15% by weight of potassium bromide, from about 10% by weight to about 40% by weight sodium chloride and from about 1% to about 5% mold release agent, in which the ratio of sodium dichloroisocyanuric acid dihydrate to potassium bromide is substantially stoichiometric, said tablet being essentially free of sodium carbonate/bicarbonate buffer mixtures and capable of prolonged release of chlorine through metered dispensers when immersed in water.
Claim 11
Dependent Claim
98 words
A tablet suitable for disinfecting a flush toilet comprising from about 50% by weight to about 75% by weight of sodium dichloroisocyanuric acid dihydrate, from about 5% by weight to about 15% by weight of potassium bromide, from about 10% by weight to about 40% by weight sodium chloride and from about 1% to about 5% mold release agent, in which the ratio of sodium dichloroisocyanuric acid dihydrate to potassium bromide is substantially stoichiometric, said tablet being essentially free of sodium carbonate/bicarbonate buffer mixtures and capable of prolonged release of chlorine through metered dispensers when immersed in water.
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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) | 1988-12-09 | 1989-06-10 | 1989-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-09 | 1993-06-10 | 1993-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-09 | 1997-06-10 | 1997-12-10 | $7700.00 | Window Closed / Lapsed |