US3285769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of applying metal coating to valves
Assignee: Coast Metals Inc
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Filing: 1962-07-20
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Granted: 1966-11-15
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Expires: 1982-07-20
Abstract
No abstract record available.
Inventors
- 👤 Arthur T Cape
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:40
CPC Classifications
C; C23; C23C; C23C24/00; C23C24/08; C23C24/10; C23C24/103; C23C24/106
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
200 words
THE METHOD OF APPLYING A METAL COATING TO A VALVE SEAT, SAID METHOD COMPRISING THE STEPS OF POSITIONING THE VALVE SEAT WITH THE SURFACE TO BE COATED FACING IN A DOWNWARD DIRECTION AND INCLINED TO A SOLID SUPPORT SURFACE ON WHICH SAID VALVE SEAT IS POSITIONED, PLACING A PREDETERMINED QUANTITY OF A METAL POWDER ADJACENT TO AND CONTACTING SAID VALVE SEAT SURFACE, SAID POWDER BEING OF A MESH SIZE SUCH THAT NOT MORE THAN ABOUT 5% OF THE POWDER WILL PASS THROUGH A 100-MESH SCREEN, SAID POWDER BEING HEAPED IN THE ANGLE DEFINED BY SAID INCLINED SURFACE AND SAID SUPPORT SURFACE, APPLYING OVER SAID POWDER A LAYER CONSISTING OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF SILICA POWDER, ORGANIC CHEMICAL COMPOUNDS WHICH DECOMPOSE UNDER HEAT TO FORM SILICA, AND ORGANIC COMPOUNDS WHICH, WHEN HEATED, REACT WITH OXYGEN TO FORM SILICA, AND HEATING THE VALVE SEAT, AND THE POWDER TO A HIGH TEMPERATURE SUFFICIENT TO DECOMPOSE SAID ORGANIC CHEMICAL COMPOUND WHEN PRESENT, SUFFICIENT FOR OXYGEN TO REACT WITH SAID ORGANIC COMPOUND WHEN PRESENT AND SUFFICIENT TO CAUSE THE POWER TO BECOME MELTED AND TO BECOME BONDED, AS A LAYER OF APPROXIMATELY THE DESIRED CROSS-SECTIONAL FORM, THE SAID VALVE SEAT SURFACE.
Claim 2
Independent Claim
200 words
THE METHOD OF APPLYING A METAL COATING TO A VALVE SEAT, SAID METHOD COMPRISING THE STEPS OF POSITIONING THE VALVE SEAT WITH THE SURFACE TO BE COATED FACING IN A DOWNWARD DIRECTION AND INCLINED TO A SOLID SUPPORT SURFACE ON WHICH SAID VALVE SEAT IS POSITIONED, PLACING A PREDETERMINED QUANTITY OF A METAL POWDER ADJACENT TO AND CONTACTING SAID VALVE SEAT SURFACE, SAID POWDER BEING OF A MESH SIZE SUCH THAT NOT MORE THAN ABOUT 5% OF THE POWDER WILL PASS THROUGH A 100-MESH SCREEN, SAID POWDER BEING HEAPED IN THE ANGLE DEFINED BY SAID INCLINED SURFACE AND SAID SUPPORT SURFACE, APPLYING OVER SAID POWDER A LAYER CONSISTING OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF SILICA POWDER, ORGANIC CHEMICAL COMPOUNDS WHICH DECOMPOSE UNDER HEAT TO FORM SILICA, AND ORGANIC COMPOUNDS WHICH, WHEN HEATED, REACT WITH OXYGEN TO FORM SILICA, AND HEATING THE VALVE SEAT, AND THE POWDER TO A HIGH TEMPERATURE SUFFICIENT TO DECOMPOSE SAID ORGANIC CHEMICAL COMPOUND WHEN PRESENT, SUFFICIENT FOR OXYGEN TO REACT WITH SAID ORGANIC COMPOUND WHEN PRESENT AND SUFFICIENT TO CAUSE THE POWER TO BECOME MELTED AND TO BECOME BONDED, AS A LAYER OF APPROXIMATELY THE DESIRED CROSS-SECTIONAL FORM, THE SAID VALVE SEAT SURFACE.
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |