US2990610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal treating process employing a heat-resistant lubricant composed of alkali metalborate and alkali metal phosphate
Assignee: Phoenix Rheinrohr AG
•
Filing: 1957-05-14
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Granted: 1961-07-04
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Expires: 1977-05-14
Abstract
No abstract record available.
Inventors
- 👤 Luckerath Werner
- 👤 Graue Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:27
CPC Classifications
C; C01; C01B; C01B25/00; C01B25/16; C01B25/26; C01B25/38; C01B25/39; B; B21; B21B; B21B45/00; B21B45/02; C10; C10M; C10M173/00; C10M173/02; C10M7/00; C10M2201/00; C10M2201/02; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/084; C10M2201/085; C10M2201/087; C10N; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/02; C10N2040/12; C10N2040/13; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/01; C10N2050/08; C10N2050/10; C10N2080/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
IN THE PROCESS OF PHYSICAL DEFORMATION OF A METAL OBJECT UNDER THE APPLICATION OF HEAT, IN WHICH THE METAL IS SUBJECTED TO DEFORMING STRESS AT ELEVATED TEMPERATURES THE IMPROVEMENT COMPRISING DE-SCALING, LUBRICATING, AND PHOSPHATIZING THE SURFACE OF SAID OBJECT BY COATING SAID SURFACE, PRIOR TO SAID DEFORMATION, WITH A LUBRICANT MATERIAL WHICH DOES NOT DECOMPOSE AND DOES NOT EVAPORATE AT THE DEFORMATION TEMPERATURE AND WHICH IS READILY REMOVABLE FROM THE OBJECT SUBSEQUENTLY TO SAID DEFORMATION, SAID LUBRICANT MATERIAL CONSISTING ESSENTIALLY OF A WATER-SOLUBLE EUTECTIC MIXTURE OF A MOLECULARLY DEHYDRATED ALKALI METAL PHOSPHATE AND AN ALKALI METAL TETRABORATE, THE ALKALI METAL BEING TAKEN FROM THE GROUP CONSISTING OF POTASSIUM AND SODIUM, WHICH EUTECTIC BEGINS TO SOFTEN AT A TEMPERATURE NOT HIGHER THAN SAID WORKING TEMPERATURE AND BELOW THE MELTING TEMPERATURES OF THE PHOSPHATE AND BORATE.
Claim 2
Dependent Claim
134 words
IN THE PROCESS OF PHYSICAL DEFORMATION OF A METAL OBJECT UNDER THE APPLICATION OF HEAT, IN WHICH THE METAL IS SUBJECTED TO DEFORMING STRESS AT ELEVATED TEMPERATURES THE IMPROVEMENT COMPRISING DE-SCALING, LUBRICATING, AND PHOSPHATIZING THE SURFACE OF SAID OBJECT BY COATING SAID SURFACE, PRIOR TO SAID DEFORMATION, WITH A LUBRICANT MATERIAL WHICH DOES NOT DECOMPOSE AND DOES NOT EVAPORATE AT THE DEFORMATION TEMPERATURE AND WHICH IS READILY REMOVABLE FROM THE OBJECT SUBSEQUENTLY TO SAID DEFORMATION, SAID LUBRICANT MATERIAL CONSISTING ESSENTIALLY OF A WATER-SOLUBLE EUTECTIC MIXTURE OF A MOLECULARLY DEHYDRATED ALKALI METAL PHOSPHATE AND AN ALKALI METAL TETRABORATE, THE ALKALI METAL BEING TAKEN FROM THE GROUP CONSISTING OF POTASSIUM AND SODIUM, WHICH EUTECTIC BEGINS TO SOFTEN AT A TEMPERATURE NOT HIGHER THAN SAID WORKING TEMPERATURE AND BELOW THE MELTING TEMPERATURES OF THE PHOSPHATE AND BORATE.
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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) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |