US3106499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and composition for cleaning and polishing aluminum and its alloys
Assignee: Rohr Inc
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Filing: 1959-05-11
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Granted: 1963-10-08
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Expires: 1979-05-11
Abstract
No abstract record available.
Inventors
- 👤 Earl W Kendall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:14
CPC Classifications
C; C23; C23F; C23F3/00; C23F3/02; C23F3/03
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
133 words
A DRY MIX ADDITIVE TO FORM A HOT AQUEOUS SOLUTION CONTAINING 2.0-5.0% NITRIC ACID FOR CLEANING AND IMPARTING HIGH GLOSS TO THE SURFACES OF ALUMINUM AND ITS ALLOYS CONSISTING OF A FLUO COMPOUND SELECTED FROM THE GROUP CONSISTING OF WATER SOLUBLE ALKALI METAL FLUORIDES, FLUOSILICATES AND FLUOBORATES AND A BORIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF BORIC ACID AND WATER SOLUBLE SALTS THEREOF, SAID BORIC AND FLUO COMPOUNDS BEING IN AMOUNT EQUIVALENT TO FORM IN THE SOLUTION ABOUT 2 TO 50 PARTS BY WEIGHT OF BORIC ACID TO 1 PART BY WEIGHT OF HYDROFLUORIC ACID CALCULATED AS AMMONIUM BIFLUORIDE, SAID FLUO COMPOUND BEING IN AMOUNT SUCH THAT THE HYDROFLUORIC ACID CALCULATED AS AMMONIUM BIFLUORIDE HAS A VOLUME TO WEIGHT RATIO OF ABOUT 10 TO 1 BETWEEN THE NITRIC ACID AND AMMONIUM BIFLUORIDE.
Claim 2
Dependent Claim
133 words
A DRY MIX ADDITIVE TO FORM A HOT AQUEOUS SOLUTION CONTAINING 2.0-5.0% NITRIC ACID FOR CLEANING AND IMPARTING HIGH GLOSS TO THE SURFACES OF ALUMINUM AND ITS ALLOYS CONSISTING OF A FLUO COMPOUND SELECTED FROM THE GROUP CONSISTING OF WATER SOLUBLE ALKALI METAL FLUORIDES, FLUOSILICATES AND FLUOBORATES AND A BORIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF BORIC ACID AND WATER SOLUBLE SALTS THEREOF, SAID BORIC AND FLUO COMPOUNDS BEING IN AMOUNT EQUIVALENT TO FORM IN THE SOLUTION ABOUT 2 TO 50 PARTS BY WEIGHT OF BORIC ACID TO 1 PART BY WEIGHT OF HYDROFLUORIC ACID CALCULATED AS AMMONIUM BIFLUORIDE, SAID FLUO COMPOUND BEING IN AMOUNT SUCH THAT THE HYDROFLUORIC ACID CALCULATED AS AMMONIUM BIFLUORIDE HAS A VOLUME TO WEIGHT RATIO OF ABOUT 10 TO 1 BETWEEN THE NITRIC ACID AND AMMONIUM BIFLUORIDE.
Claim 3
Dependent Claim
104 words
A PROCESS FOR CLEANING AN ARTICLE COMPOSED OF AN ALUMINUM-RICH ALLOY WHICH COMPRISES THE STEPS OF SUBJECTING THE ARTICLE TO THE ACTION OF A HEATED AQUEOUS SOLUTION CONSISTING OF FROM 2.0-5.0 MLS. OF NITRIC ACID PER 100 MLS. OF SAID AQUEOUS SOLUTION, 1.0-10.0 GRAMS OF BORIC ACID PER 100 MLS. OF SAID AQUEOUS SOLUTION, AND 0.15-0.35 GRAM OF HYDROFLUORIC ACID PER 100 MLS. OF SAID AQUEOUS SOLUTION, RINSING THE ARTICLE WITH WATER, AND THEREAFTER SUBJECTING THE ARTICLE TO THE ACTION OF A SOLUTION CONSISTING ESSENTIALLY OF ABOUT 22% NITRIC ACID, 0.5% CHROMIC ACID, 77.5% WATER BY WEIGHT FOLLOWED BY RINSING IN WATER AND DRYING.
Claim 4
Dependent Claim
104 words
A PROCESS FOR CLEANING AN ARTICLE COMPOSED OF AN ALUMINUM-RICH ALLOY WHICH COMPRISES THE STEPS OF SUBJECTING THE ARTICLE TO THE ACTION OF A HEATED AQUEOUS SOLUTION CONSISTING OF FROM 2.0-5.0 MLS. OF NITRIC ACID PER 100 MLS. OF SAID AQUEOUS SOLUTION, 1.0-10.0 GRAMS OF BORIC ACID PER 100 MLS. OF SAID AQUEOUS SOLUTION, AND 0.15-0.35 GRAM OF HYDROFLUORIC ACID PER 100 MLS. OF SAID AQUEOUS SOLUTION, RINSING THE ARTICLE WITH WATER, AND THEREAFTER SUBJECTING THE ARTICLE TO THE ACTION OF A SOLUTION CONSISTING ESSENTIALLY OF ABOUT 22% NITRIC ACID, 0.5% CHROMIC ACID, 77.5% WATER BY WEIGHT FOLLOWED BY RINSING IN WATER AND DRYING.
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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) | 1966-10-07 | 1967-04-08 | 1967-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-07 | 1971-04-08 | 1971-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-07 | 1975-04-08 | 1975-10-08 | $7700.00 | Window Closed / Lapsed |