Patent US3785991A successfully refreshed from Google Patents.
US4582733A
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Method for cleaning and coating objects
Assignee: Dover Technology International Inc
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Filing: 1984-01-05
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Granted: 1986-04-15
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Expires: 2004-01-05
Abstract
Abstract A chemical composition particularly useful in a vapor generating apparatus which includes at least one organic compound with two or less carbon atoms and a selected coating compound therein. Upon submersion of an object to be cleaned or dried in a boiling solution of the organic compound the object is not only cleaned or dried, but is also coated with a material which improves its resistance to, for example, erosion, corrosion, friction, and the like.
Inventors
- 👤 James W. McCord
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:13
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/18; C; C09; C09G; C09G1/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
127 words
A method of cleaning and coating objects with a chemical composition, comprising the steps of: preparing a chemical composition comprising from about 0.1 to 10 percent by weight of a coating compound in a solution containing at least one halogenated organic compound with two or less carbon atoms, said coating compound being mixable in said halogenated organic compound, said coating compound having a boiling point higher than the boiling point of said halogenated organic compound, said coating compound being selected from the group consisting of petrolatum, tetrafluoroethylene, or beeswax; boiling the chemical composition; immersing objects to be treated into the boiling chemical composition; and removing the treated objects from the boiling chemical composition whereby said halogenated organic compound vaporizes and said coating compound remains on said object.
Claim 2
Independent Claim
127 words
A method of cleaning and coating objects with a chemical composition, comprising the steps of: preparing a chemical composition comprising from about 0.1 to 10 percent by weight of a coating compound in a solution containing at least one halogenated organic compound with two or less carbon atoms, said coating compound being mixable in said halogenated organic compound, said coating compound having a boiling point higher than the boiling point of said halogenated organic compound, said coating compound being selected from the group consisting of petrolatum, tetrafluoroethylene, or beeswax; boiling the chemical composition; immersing objects to be treated into the boiling chemical composition; and removing the treated objects from the boiling chemical composition whereby said halogenated organic compound vaporizes and said coating compound remains on said object.
Claim 3
Dependent Claim
32 words
The method of claim 1, said at least one halogenated organic compound is a non-polar solvent selected from the group consisting of trichloromonofluoromethane, trichlorotrifluoroethane, methylene chloride, methyl chloroform, perchloroethylene, and mixtures thereof.
Claim 4
Dependent Claim
7 words
The method of claim 1 including water.
Claim 5
Dependent Claim
10 words
The method of claim 1, said coating compound being tetrafluoroethylene.
References Cited (Backward Citations)
US3516938A
Cited
US3573212A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-14 | 1989-10-14 | 1990-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-14 | 1993-10-14 | 1994-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-14 | 1997-10-14 | 1998-04-15 | $7700.00 | Window Closed / Lapsed |