US3773676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaner for printing equipment
Assignee: Oxford Chemicals Inc
•
Filing: 1972-12-04
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Granted: 1973-11-20
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Expires: 1992-12-04
Abstract
Abstract A non-inflammable cleaner for printing equipment is composed of a lower boiling non-inflammable halogenated liquid hydrocarbon, a higher boiling non-inflammable halogenated liquid hydrocarbon and a petroleum solvent such as mineral spirits, blended together in critical proportions so that the resultant blend is noninflammable but possesses the required drying characteristics and cleaning efficacy.
Inventors
- 👤 Boyles H Barringer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:36
CPC Classifications
B; B41; B41N; B41N3/00; B41N3/006; C; C09; C09D; C09D9/00; C09D9/005; C11; C11D; C11D7/00; C11D7/50; C11D7/5004; C11D7/5018; C23; C23G; C23G5/00; C23G5/02; C23G5/024
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
33 words
A solvent in accordance with claim 1 in which the non-flammable halogenated hydrocarbon liquid boiling above about 70*C. is from the group consisting of perchlorethylene, carbon tetrachloride, trichloropropane, bromoform, bromotrichloromethane and ethylene dibromide.
Claim 2
Dependent Claim
29 words
A solvent in accordance with claim 1 in which the non-flammable halogenated hydrocarbon liquid boiling below about 50*C. is from the group consisting of methylene chloride and ethyl bromide.
Claim 3
Dependent Claim
28 words
A solvent in accordance with claim 2 in which the non-flammable halogenated hydrocarbon boiling below about 50*C. is from the group consisting of methylene chloride and ethyl bromide.
Claim 4
Dependent Claim
17 words
A solvent in accordance with claim 4 in which the low boiling petroleum solvent is mineral spirits.
Claim 5
Dependent Claim
20 words
A solvent in accordance with claim 1 in which the non-flammable halogenated hydrocarbon liquid boiling above about 70*C. is perchlorethylene.
Claim 6
Dependent Claim
21 words
A solvent in accordance with claim 6 in which the non-flammable halogenated hydrocarbon liquid boiling below about 50*C. is methylene chloride.
Claim 7
Dependent Claim
17 words
A solvent in accOrdance with claim 7 in which the low boiling petroleum solvent is mineral spirits.
Claim 8
Dependent Claim
45 words
A solvent in accordance with claim 8 in which the perchlorethylene is present in the amount of about 60 percent, the methylene chloride is present in the amount of about 10 percent and the mineral spirits is present in the amount of about 30 percent.
Claim 9
Dependent Claim
32 words
A solvent in accordance with claim 1 in which there is present about 43 percent 1,1,1 trichlorethane, 15 percent of perchlorethylene, 12 percent of methylene chloride and 30 percent of mineral spirits.
Claim 10
Dependent Claim
42 words
A solvent in accordance with claim 5 in which the perchlorethylene is present in the amount of 50 percent, the methylene chloride is present in the amount of 20 percent and the mineral spirits is present in the amount of 30 percent.
Claim 11
Dependent Claim
42 words
A solvent in accordance with claim 5 in which the perchlorethylene is present in the amount of 50 percent, the methylene chloride is present in the amount of 15 percent and the mineral spirits is present in the amount of 35 percent.
Claim 12
Dependent Claim
21 words
A solvent in accordance with claim 1 in which the non-flammable halogenated hydrocarbon boiling above about 70*C. is 1, 1,1 trichlorethane.
Claim 13
Dependent Claim
56 words
A solvent in accordance with claim 1 in which the non-flammable halogenated hydrocarbon boiling above about 70*C. is from the group 1,1,1 trichlorethane and perchlorethylene in the amount of about 55 percent, the non-inflammable halogenated hydrocarbon boiling below about 50*C. is methylene chloride in the amount of about 20 percent and the balance is mineral spirits.
Claim 14
Dependent Claim
49 words
The solvent of claim 1 in which the non-inflammable halogenated hydrocarbon boiling above about 70*C. is ethylene dibromide in the amount of about 55 percent, the non-inflammable halogenated hydrocarbon boiling below about 50*C. is ethyl bromide in the amount of about 15 percent and the balance is mineral spirits.
Claim 15
Dependent Claim
39 words
The method of cleaning printing equipment to remove ink and other soiling materials comprising applying to said equipment the solvent of claim 1 and thereafter wiping the equipment with a clean cloth before the solvent is allowed to dry.
Claim 16
Dependent Claim
39 words
The method of cleaning printing equipment to remove ink and other soiling materials comprising applying to said equipment the solvent of claim 12 and thereafter imping the equipment with a clean cloth before the solvent is allowed to dry.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |