Method for forming lubricant coatings on metal surfaces to be deformed
Abstract
Abstract A PROCESS FOR FORMING A LUBRICANT COATING ON A METAL SURFACE TO BE DEFORMED WHEREIN A PHOSPHATE MATERIAL IS APPLIED TO THE METAL SURFACE SO AS TO EFFECT A CONTROLLED REACTION BETWEEN THE PHOSPHATE MATERIAL AND THE METAL SURFACE AND FORM A PHOSPHATE COATING WHICH IS AT LEAST PARTIALLY UNREACTED WITH THE METAL SURFACE. THEREAFTER, A FATTY ACID COMPOSITION IS APPLIED TO THE PHOSPHATE COATED SURFACE SO AS TO EFFECT A CONTROLLED REACTION BETWEEN THE FATTY ACID COMPOSITION AND THE PHOSPHATE COATING AND FORM A FATTY ACID COATING WHICH IS AT LEAST PARTIALLY UNREACTED WITH THE PHOSPHATE COATING AND THE METAL SURFACE. BOTH THE PHOSPHATE MATERIAL AND THE FATTY ACID COMPOSITIONS ARE APPLIED SO THAT A SUBSTANTIALLY DRY COATING IS FORMED SUBSTANTIALLY UPON CONTACT OF THE RESPECTIVE MATERIAL WITH THE METAL SURFACE. PREFERABLY, THE METAL SURFACE IS AT AN ELEVATED TEMPERATURE WHEN THE COATING MATERIALS ARE APPLIED AND BOTH THE PHOSPHATE MATERIAL AND THE FATTY ACID COMPOITION ARE DESIRABLY IN THE FORM OF AQUEOUS SOLUTION.
Inventors
- 👤 Cecil W Glasson
Bibliographic Details
Claims Analysis
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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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |