US3645390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diazo copying machine roll cleaner package
Assignee: Individual
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Filing: 1969-08-07
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Granted: 1972-02-29
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Expires: 1989-08-07
Abstract
Abstract An aqueous cleaner for restoring synthetic rubber squeegee roll comprising critical levels of anionic surfactant, nonionic surfactant, water-soluble wax solvent, and halogen-containing oxidizing agent. A novel, dry, i.e., free-flowing, mixture which is readily packaged in commercial equipment, and which is storage stable for prolonged periods of time is provided for solution in water to provide the cleaning medium.
Inventors
- 👤 Robert F Ryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:08
CPC Classifications
C; C11; C11D; C11D1/00; G; G03; G03D; G03D15/00; G03D15/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
As an article of manufacture of a two-compArtment package of dry mixes, each compartment being separate from the other to permit the use of highly active ingredients while insuring good shelf life of the package of ingredients; a first compartment containing a first mix comprising: about 25 percent sodium carbonate, about 45 percent sodium tripolyphosphate, about 0.3 percent dodecyl diphenyl oxide sulfonate, sodium salt, about 0.1 percent water soluble ethylene oxide adducts, about 15 percent ethylene glycol n-butyl ether, and about 15 percent tetrapotassium pyrophosphate; a second compartment containing a second mix comprising about 1 percent sodium metasilicate, about 54 percent sodium tripolyphosphate, and about 45 percent potassium dichloro isocyanurate.
Claim 2
Dependent Claim
149 words
As an article of manufacture, a package of apparently dry, free-flowing solid ingredients, said package being divided into separate compartments to permit the use of highly active ingredients while insuring good shelf life of the package of ingredients; each compartment containing a predetermined quantity of a mixture; a first compartment containing the mixture comprising anionic surfactant in the range 0.02-0.60 percent, nonionic surfactant in the range 0.01-0.02 percent, water-soluble wax solvent in the range 8-20 percent, alkali metal phosphate in the range 5-75 percent, dry free-flowing completely water-soluble solid in sufficient quantity to provide a dry free-flowing character to the mixture; the mixture in the second compartment including sodium metasilicate in the range 0-5 percent, sodium tripolyphosphate in the range 0.5-78.5 percent, and potassium dichloroisocyanurate (59 percent available chlorine) in the range 27-55.5 percent; the ''''percent'''' referring to percent by weight based on the weight of the particular mixture.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |