US2828226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of interstitially casting metal in high melting skeleton bodies
Assignee: SinterCast Corp of America
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Filing: 1955-03-04
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Granted: 1958-03-25
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Expires: 1975-03-04
Abstract
No abstract record available.
Inventors
- 👤 Goetzel Claus Guenter
- 👤 Skolnick Leonard Philip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:20
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/10; C22C1/1005; C22C1/1015; C22C1/1021
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
IN A METHOD OF PRODUCING A HEAT RESISTANT REFRACTORY METAL COMPOUND BODY IN WHICH GRAINS OF AT LEAST ONE SAID METAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF CARBIDES, BORIDES, NITRIDES AND SILICIDES OF TITANIUM, ZIRCONIUM, CHROMIUM, MOLYBDENUM, TUNGSTEN, VANADIUM, COLUMBIUM AND TANTALUM ARE DISPERSED THROUGH A METAL MATRIX, SAID BODY BEING PRODUCED BY HEATING THE REFRACTORY METAL COMPOUND AT AN ELEVATED TEMPERATURE IN THE PRESENCE OF A LIQUID PHASE OF THE MATRIX METAL, THE IMPROVEMENT WHEREIN THE LIQUID PHASE HEATING IS CONDUCTED WHILE SAID LIQUID PHASE IS IN CONTACT WITH SAID METAL COMPOUND AND WITH A ZIRCONIA SUPPORT WHOSE CRYSTALLOGRAPHIC STRUCTURE IS SUBSTANTIALLY CUBIC.
Claim 2
Dependent Claim
105 words
IN A METHOD OF PRODUCING A HEAT RESISTANT REFRACTORY METAL COMPOUND BODY IN WHICH GRAINS OF AT LEAST ONE SAID METAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF CARBIDES, BORIDES, NITRIDES AND SILICIDES OF TITANIUM, ZIRCONIUM, CHROMIUM, MOLYBDENUM, TUNGSTEN, VANADIUM, COLUMBIUM AND TANTALUM ARE DISPERSED THROUGH A METAL MATRIX, SAID BODY BEING PRODUCED BY HEATING THE REFRACTORY METAL COMPOUND AT AN ELEVATED TEMPERATURE IN THE PRESENCE OF A LIQUID PHASE OF THE MATRIX METAL, THE IMPROVEMENT WHEREIN THE LIQUID PHASE HEATING IS CONDUCTED WHILE SAID LIQUID PHASE IS IN CONTACT WITH SAID METAL COMPOUND AND WITH A ZIRCONIA SUPPORT WHOSE CRYSTALLOGRAPHIC STRUCTURE IS SUBSTANTIALLY CUBIC.
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) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |