US3856480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diamond joined to metal
Assignee: EIDP Inc
•
Filing: 1973-02-16
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Granted: 1974-12-24
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Expires: 1993-02-16
Abstract
Abstract Disclosed herein is an improved method for joining diamond to metal using a gold-tantalum or gold-niobium solder. The method utilizes powdered material, and a clamp to keep the diamond in place during the soldering step. The article produced has higher mechanical stability than articles produced by known procedures.
Inventors
- 👤 D Johnson
- 👤 J Sawers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:32
CPC Classifications
B; B23; B23P; B23P5/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/932; Y10S76/00; Y10S76/12; Y10T; Y10T407/00; Y10T407/26; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12049; Y10T428/12056; Y10T428/12063; Y10T428/12069; Y10T428/12493; Y10T428/12535; Y10T428/12625; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/12861; Y10T428/12889
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
60 words
AN ARTICLE OF MANUFACTURE COMPRISING: A METAL SHANK; AN ALLOY SELECTED FROM THE GROUP CONSISTING OF GOLD-TANTALUM ALLOYS CONTAINING FROM ABOUT 1 TO ABOUT 25 PERCENT BY WEIGHT OF TANTALUM, AND GOLD-NIOBIUM ALLOYS CONTAINING FROM ABOUT 1 TO ABOUT 10 PERCENT BY WEIGHT OF NIOBIUM; AND INERT POWDERED MATERIAL DISPERSED IN AT LEAST A PORTION OF SAID ALLOY; AND A
Claim 2
Dependent Claim
60 words
AN ARTICLE OF MANUFACTURE COMPRISING: A METAL SHANK; AN ALLOY SELECTED FROM THE GROUP CONSISTING OF GOLD-TANTALUM ALLOYS CONTAINING FROM ABOUT 1 TO ABOUT 25 PERCENT BY WEIGHT OF TANTALUM, AND GOLD-NIOBIUM ALLOYS CONTAINING FROM ABOUT 1 TO ABOUT 10 PERCENT BY WEIGHT OF NIOBIUM; AND INERT POWDERED MATERIAL DISPERSED IN AT LEAST A PORTION OF SAID ALLOY; AND A
Claim 3
Dependent Claim
13 words
The article of claim 1 wherein said powdered material is a metal powder.
Claim 4
Dependent Claim
20 words
The article of claim 1 wherein said metal shank and said powdered material are all made from the same material.
Claim 5
Dependent Claim
12 words
The article of claim 1 wherein said powdered material is molybdenum powder.
Claim 6
Dependent Claim
20 words
The article of claim 1 wherein at least a portion of said diamond is exposed to form a cutting edge.
References Cited (Backward Citations)
US3192620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |