US2601864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for and method of descaling metal parts
Assignee: Individual
•
Filing: 1947-07-02
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Granted: 1952-07-01
•
Expires: 1967-07-02
Abstract
No abstract record available.
Inventors
- 👤 Artemas F Holden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:22
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/28
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
63 words
A WORK DESCALING SALT BATH ADAPTED TO BE OPERATED AT A TEMPERATURE ABOVE 1000* F. CONSISTING ESSENTIALLY OF A MIXTURE OF CHLORIDES FROM THE GROUP CONSISTING OF ALKALI METAL CHLORIDES AND ALKALINE EARTH METAL CHLORIDES, TOGETHER WITH 2% TO 10% OF A FLUORIDE SELECTED FROM THE GROUP CONSISTING OF THE FLUORIDES OF SODIUM, POTASSIUM AND BARIUM, AND 1/2% TO 5% OF SILICON CARBIDE.
Claim 2
Dependent Claim
63 words
A WORK DESCALING SALT BATH ADAPTED TO BE OPERATED AT A TEMPERATURE ABOVE 1000* F. CONSISTING ESSENTIALLY OF A MIXTURE OF CHLORIDES FROM THE GROUP CONSISTING OF ALKALI METAL CHLORIDES AND ALKALINE EARTH METAL CHLORIDES, TOGETHER WITH 2% TO 10% OF A FLUORIDE SELECTED FROM THE GROUP CONSISTING OF THE FLUORIDES OF SODIUM, POTASSIUM AND BARIUM, AND 1/2% TO 5% OF SILICON CARBIDE.
Claim 3
Independent Claim
108 words
THE METHOD OF DESCALING METAL PARTS COMPRISING IMMERSING THEM IN A MOLTEN BATH CONSISTING ESSENTIALLY OF A MIXTURE OF CHLORIDES FROM THE GROUP CONSISTING OF ALKALI METAL CHLORIDES AND ALKALINE EARTH METAL CHLORIDES, 2% TO 10% OF A FLUORIDE SELECTED FROM THE GROUP CONSISTING OF THE FLUORIDES OF SODIUM, POTASSIUM AND BARIUM TO WHICH SILICON CARBIDE IS ADDED FROM TIME TO TIME TO MAINTAIN 1/2% TO 5% OF SILICON CARBIDE IN THE BATH, AND OPERATED AT A TEMPERATURE ABOVE 1000* F., THE PARTS BEING RETAINED IN THE BATH UNTIL HEATED TO THE TEMPERATURE OF THE BATH; THE PARTS THEN BEING REMOVED FROM THE BATH AND QUENCHED IN WATER.
Claim 4
Independent Claim
108 words
THE METHOD OF DESCALING METAL PARTS COMPRISING IMMERSING THEM IN A MOLTEN BATH CONSISTING ESSENTIALLY OF A MIXTURE OF CHLORIDES FROM THE GROUP CONSISTING OF ALKALI METAL CHLORIDES AND ALKALINE EARTH METAL CHLORIDES, 2% TO 10% OF A FLUORIDE SELECTED FROM THE GROUP CONSISTING OF THE FLUORIDES OF SODIUM, POTASSIUM AND BARIUM TO WHICH SILICON CARBIDE IS ADDED FROM TIME TO TIME TO MAINTAIN 1/2% TO 5% OF SILICON CARBIDE IN THE BATH, AND OPERATED AT A TEMPERATURE ABOVE 1000* F., THE PARTS BEING RETAINED IN THE BATH UNTIL HEATED TO THE TEMPERATURE OF THE BATH; THE PARTS THEN BEING REMOVED FROM THE BATH AND QUENCHED IN WATER.
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) | 1955-07-01 | 1955-12-31 | 1956-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-01 | 1959-12-31 | 1960-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-01 | 1963-12-31 | 1964-07-01 | $7700.00 | Window Closed / Lapsed |