US3279049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for bonding a sintered refractory carbide body to a metalliferous surface
Assignee: Alloy Technology International Inc
•
Filing: 1963-12-05
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Granted: 1966-10-18
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Expires: 1983-12-05
Abstract
No abstract record available.
Inventors
- 👤 John L Ellis
- 👤 Stuart E Tarkan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:53
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/22; B23K20/227; B22; B22F; B22F7/00; B22F7/06; B22F7/062; B22F2998/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A METHOD OF BONDING A BODY OF COMPOSITE MATERIAL COMPRISING PARTICLES OF A HIGH MELTING COMPONENT DISPERSED THROUGH A DUCTILE MATRIX METAL OF LOWER MELTING POINT TO A BODY OF A METALLIFEROUS MATERIAL WHICH COMPRISES, FORMING SUBSTANTIALLY ACCURATE MATING SURFACES ON EACH OF SAID BODIES, THE SURFACE OF SAID COMPOSITE MATERIAL HAVING A DIFFERENT CONCENTRATION OF HIGH MELTING COMPONENT RELATIVE TO THE MATRIX METAL AS A RESULT OF THE PREPARATION OF SAID SURFACE, PLACING ONE OF SAID BODIES ON TOP OF THE OTHER IN CONTACT AT THEIR MATING SURFACES, HEATING SAID BODIES IN A VACUUM AT AN ELEVATED TEMPERATURE AT LEAST EQUAL TO THE FUSION POINT OF THE LOWEST MELTING PHASE OF THE MATRIX METAL OF SAID COMPOSITE MATERIAL FOR A TIME SUFFICIENT TO EFFECT FUSION OF THE MATRIX METAL AND THEN COOLING TO FORM SAID BOND.
Claim 2
Independent Claim
137 words
A METHOD OF BONDING A BODY OF COMPOSITE MATERIAL COMPRISING PARTICLES OF A HIGH MELTING COMPONENT DISPERSED THROUGH A DUCTILE MATRIX METAL OF LOWER MELTING POINT TO A BODY OF A METALLIFEROUS MATERIAL WHICH COMPRISES, FORMING SUBSTANTIALLY ACCURATE MATING SURFACES ON EACH OF SAID BODIES, THE SURFACE OF SAID COMPOSITE MATERIAL HAVING A DIFFERENT CONCENTRATION OF HIGH MELTING COMPONENT RELATIVE TO THE MATRIX METAL AS A RESULT OF THE PREPARATION OF SAID SURFACE, PLACING ONE OF SAID BODIES ON TOP OF THE OTHER IN CONTACT AT THEIR MATING SURFACES, HEATING SAID BODIES IN A VACUUM AT AN ELEVATED TEMPERATURE AT LEAST EQUAL TO THE FUSION POINT OF THE LOWEST MELTING PHASE OF THE MATRIX METAL OF SAID COMPOSITE MATERIAL FOR A TIME SUFFICIENT TO EFFECT FUSION OF THE MATRIX METAL AND THEN COOLING TO FORM SAID BOND.
References Cited (Backward Citations)
US2184847A
Cited
US2743201A
Cited
US3110571A
Cited
US3082521A
Cited
US3025592A
Cited
US3137937A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |