US4322309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition capable of removing hydrophilic and hydrophobic contaminants from surfaces
Assignee: Hubbell Inc
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Filing: 1981-01-13
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Granted: 1982-03-30
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Expires: 2001-01-13
Abstract
Abstract A novel cleaning and drying composition is disclosed which has a number of unique properties rendering the composition particularly useful for cleaning and refinishing electrical equipment and tools. The composition preferably comprises about 30% ethanol, 50% methylene chloride, 15% 1,1,1-trichloroethane and 5% perchloroethylene; this combination of ingredients gives a final product that dissolves water and many organic materials while at the same time having a high evaporation rate and flame resistance (flash point greater than 100° F.). The composition also gives a visual indication of the need for recleaning and replacement thereof by becoming cloudy when excessive moisture has been absorbed.
Inventors
- 👤 William M. Rinehart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:44
CPC Classifications
C; C11; C11D; C11D7/00; C11D7/22; C11D7/26; C11D7/261; C11D7/50; C11D7/5004; C11D7/5018; C11D7/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A cleaning and drying composition consisting essentially of, wherein all percentages are by weight, based upon the total weight of the composition taken as 100%: about 30% ethanol; about 50% of a compound selected from the group consisting of methylene chloride, trichlorofluoromethane and mixtures thereof; and about 20% of additional material, comprising a chlorinated hydrocarbon selected from the group consisting of 1,1,1-trichloroethane, perchloroethylene, 1,1,2-trichloroethane, propylene dichloride and mixtures thereof. said composition having a flash point of greater than about 100° F., the ability to absorb moisture and dissolve a variety of organic materials, and the property of becoming cloudy when excessive moisture has been absorbed thereby.
Claim 2
Dependent Claim
106 words
A cleaning and drying composition consisting essentially of, wherein all percentages are by weight, based upon the total weight of the composition taken as 100%: about 30% ethanol; about 50% of a compound selected from the group consisting of methylene chloride, trichlorofluoromethane and mixtures thereof; and about 20% of additional material, comprising a chlorinated hydrocarbon selected from the group consisting of 1,1,1-trichloroethane, perchloroethylene, 1,1,2-trichloroethane, propylene dichloride and mixtures thereof. said composition having a flash point of greater than about 100° F., the ability to absorb moisture and dissolve a variety of organic materials, and the property of becoming cloudy when excessive moisture has been absorbed thereby.
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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) | 1985-03-29 | 1985-09-28 | 1986-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-29 | 1989-09-28 | 1990-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-29 | 1993-09-28 | 1994-03-30 | $7700.00 | Window Closed / Lapsed |