US2875111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming phosphate coatings on drawn wire
Assignee: Parker Rust Proof Co
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Filing: 1954-12-06
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Granted: 1959-02-24
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Expires: 1974-12-06
Abstract
No abstract record available.
Inventors
- 👤 Wilkinson Cyril Frank
- 👤 Jenkins Herbert Arthur Henry
- 👤 Lake Leslie Thomas
- 👤 Stanley V Radeliffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:42
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/04; C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/07; C23C22/08; C23C22/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A METHOD OF FORMING A PHOSHATE COATING ON WIRE WHICH COMPRISES THE STEPS OF PASSING THE WORE IN A CHEMICALLY CLEAN CONDITION, CONTINUOUSLY IN AN AXIAL DIRECTION THROUGH AN AQUEOUS ACIDIC ACCELERATED PHOSPHATE COATING SOLUTION SELECTED FROM THE GROUP CONSISTING OF ZINC, MANGANESE, IRON AND CADMIUM PHOSPHATE SOLUTIONS AND HAVING A POINTAGE GREATER THAN ABOUT 40 AND CONTAINING AN ACCELERATOR SELECTED FROM THE GROUP CONSISTING OF NITRITE, NITROPHENOL, NITROGUANIDINE, A MIXTURE OF CHLORATE AND NITRATE AND A MIXTURE OF NITRITE AND NITRATE, THE RATIO TO PHOSPHATE OF SAID ACCELERATOR BEING IN THE RANGE OF 0.0075 TO 0.6. REGULATING THE SPEED OF TRAVEL AND THE DURATION OF IMMERSION OF THE WIRE IN THE SOLUTION WITH THE DEGREE OF ACCELERATION SO THAT THE INITIAL FORMATION OF THE COATING OCCURS IN THE COATING SOLUTION AND THE WIRE EMERGES FROM THE COATING SOLUTION CARRYING A UNIFORM FILM OF THE SOLUTION ON ITS SURFACE, WHICH FILM SERVES TO COMPLETE THE FORMATION OF THE PHOSPHATE COATING ON THE SURFACE OF THE WIRE.
Claim 2
Independent Claim
166 words
A METHOD OF FORMING A PHOSHATE COATING ON WIRE WHICH COMPRISES THE STEPS OF PASSING THE WORE IN A CHEMICALLY CLEAN CONDITION, CONTINUOUSLY IN AN AXIAL DIRECTION THROUGH AN AQUEOUS ACIDIC ACCELERATED PHOSPHATE COATING SOLUTION SELECTED FROM THE GROUP CONSISTING OF ZINC, MANGANESE, IRON AND CADMIUM PHOSPHATE SOLUTIONS AND HAVING A POINTAGE GREATER THAN ABOUT 40 AND CONTAINING AN ACCELERATOR SELECTED FROM THE GROUP CONSISTING OF NITRITE, NITROPHENOL, NITROGUANIDINE, A MIXTURE OF CHLORATE AND NITRATE AND A MIXTURE OF NITRITE AND NITRATE, THE RATIO TO PHOSPHATE OF SAID ACCELERATOR BEING IN THE RANGE OF 0.0075 TO 0.6. REGULATING THE SPEED OF TRAVEL AND THE DURATION OF IMMERSION OF THE WIRE IN THE SOLUTION WITH THE DEGREE OF ACCELERATION SO THAT THE INITIAL FORMATION OF THE COATING OCCURS IN THE COATING SOLUTION AND THE WIRE EMERGES FROM THE COATING SOLUTION CARRYING A UNIFORM FILM OF THE SOLUTION ON ITS SURFACE, WHICH FILM SERVES TO COMPLETE THE FORMATION OF THE PHOSPHATE COATING ON THE SURFACE OF THE WIRE.
References Cited (Backward Citations)
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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) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |