US4461652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Barnacle removal process and product
Assignee: Individual
•
Filing: 1982-09-13
•
Granted: 1984-07-24
•
Expires: 2002-09-13
Abstract
Abstract Barnacles from marine vessels are removed by spraying the surfaces thereof with a mixture the active ingredients of which are a hydrocarbon liquid oil; a surfactant; alcohol; a metal hypochlorite; and an alkyl, dialkyl benzyl ammonium salt. After the solution has been applied to the surfaces for about 20 minutes, the barnacles are removed by power spraying the surfaces with water.
Inventors
- 👤 Therezia L. Richmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:43
CPC Classifications
B; B63; B63B; B63B59/00; B63B59/06; C; C11; C11D; C11D3/00; C11D3/16; C11D3/18; C11D3/395; C11D3/3953
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
112 words
A process for removing barnacles from the surfaces of marine vessels and the like, including the steps of: spraying on said surfaces a composition comprising a hydrocarbon oil from about 15 to about 35 weight percent; a surfactant from about 1.5 to 6 weight percent; an alcohol from about 0 to 2 weight percent; a metal hypochlorite soluble in said oil from about 0.5 to 5 weight percent said surfactant comprising from about 0.5 to 1.5 weight percent of an alkyl, dialkyl benzyl ammonium salt; inert ingredients from about 82.5 to 50.5 weight percent; and spraying water on said surfaces after a predetermined period of time sufficient to remove the softened barnacles.
Claim 2
Dependent Claim
112 words
A process for removing barnacles from the surfaces of marine vessels and the like, including the steps of: spraying on said surfaces a composition comprising a hydrocarbon oil from about 15 to about 35 weight percent; a surfactant from about 1.5 to 6 weight percent; an alcohol from about 0 to 2 weight percent; a metal hypochlorite soluble in said oil from about 0.5 to 5 weight percent said surfactant comprising from about 0.5 to 1.5 weight percent of an alkyl, dialkyl benzyl ammonium salt; inert ingredients from about 82.5 to 50.5 weight percent; and spraying water on said surfaces after a predetermined period of time sufficient to remove the softened barnacles.
Claim 3
Dependent Claim
16 words
The process according to claim 1, wherein: said predetermined period of time is substantially 20 minutes.
Claim 4
Dependent Claim
21 words
The process according to claim 1, wherein: said composition is diluted with water prior to spraying the same on said surfaces.
Claim 5
Dependent Claim
50 words
The process according to claim 1, wherein: said hydrocarbon oil comprises pine oil; said metal hypochlorite comprises sodium hypochlorite; and said alkyl, dialkyl benzyl ammonium salt comprises a compound selected from the group consisting of n-alkyl dimethyl benzyl ammonium chloride, n-alkyl dimethyl lower alkyl benzyl ammonium chloride and mixtures thereof.
Claim 6
Dependent Claim
57 words
The process according to claim 4, wherein: said hydrocarbon oil is about 26 weight percent; said surfactant is about 3 weight percent; said alcohol is about 0.55 weight percent; said metal hypochlorite is about 1.75 weight percent; said alkyl, dialkyl benzyl ammonium salt is about 0.85 weight percent; and said inert ingredients are about 67.85 weight percent.
References Cited (Backward Citations)
US4323466A
Cited
US3702256A
Cited
US3915880A
Cited
US4115130A
Cited
US4181622A
Cited
US4154818A
Cited
US4164477A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-07-24 | 1988-01-23 | 1988-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-24 | 1992-01-23 | 1992-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-24 | 1996-01-23 | 1996-07-24 | $7700.00 | Window Closed / Lapsed |