US2512455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper-titanium coating and bonding process
Assignee: Metal Hydrides Inc
•
Filing: 1945-12-31
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Granted: 1950-06-20
•
Expires: 1965-12-31
Abstract
No abstract record available.
Inventors
- 👤 Peter P Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:23
CPC Classifications
C; C23; C23C; C23C24/00; C23C24/08; C23C24/10; C23C24/103; C23C24/106; Y; Y10; Y10S; Y10S29/00; Y10S29/045; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/925; Y10S428/9335; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/1291
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
165 words
A PROCESS OF PRODUCING A COATING ON A METAL ARTICLE, THE SURFACE PORTION AT LEAST OF WHICH IS COMPOSED OF A METAL CONTAINING COPPER AS A SUBSTANTIAL COMPONENT, WHICH PROCESS COMPRISES APPLYING TO AT LEAST A PART OF THE SURFACE OF SUCH ARTICLE A COATING OF VERY FINELY DIVIDED MATERIAL WHICH CONTAINS METALLIC COPPER AND TITANIUM HYDRIDE, BOTH IN THE FORM OF FINE POWDERS, HEATING SUCH ARTICLE IN THE ABSENCE OF SUBSTANTIAL AMOUNTS OF FREE OXYGEN, TO A TEMPERATURE ABOVE 872*C., BUT SUBSTANTIALLY BELOW THE MELTING POINT OF PURE COPPER, WHEREBY THE TITANIUM HYDRIDE DECOMPOSES WITH LIBERATION OF HYDROGEN AND A LOWMELTING POINT ALLOY CONTAINING COPPER AND TITANIUM IS FORMED, WHICH ALLOY, WHILE MOLTEN, FLOWS OVER AT LEAST A PORTION OF THE SURFACE OF SUCH ARTICLE TO COAT THE SAME, AND THEREAFTER COOLING THE SAID ARTICLE TO WELL BELOW 872*C., WHILE STILL UNDER NON-OXIDIZING CONDITIONS, WHEREBY A COATING OF AN ALLOY CONTAINING COPPER AND TITANIUM, OF ANY DESIRED THICKNESS CAN BE PRODUCED ON SAID ARTICLE.
Claim 2
Dependent Claim
165 words
A PROCESS OF PRODUCING A COATING ON A METAL ARTICLE, THE SURFACE PORTION AT LEAST OF WHICH IS COMPOSED OF A METAL CONTAINING COPPER AS A SUBSTANTIAL COMPONENT, WHICH PROCESS COMPRISES APPLYING TO AT LEAST A PART OF THE SURFACE OF SUCH ARTICLE A COATING OF VERY FINELY DIVIDED MATERIAL WHICH CONTAINS METALLIC COPPER AND TITANIUM HYDRIDE, BOTH IN THE FORM OF FINE POWDERS, HEATING SUCH ARTICLE IN THE ABSENCE OF SUBSTANTIAL AMOUNTS OF FREE OXYGEN, TO A TEMPERATURE ABOVE 872*C., BUT SUBSTANTIALLY BELOW THE MELTING POINT OF PURE COPPER, WHEREBY THE TITANIUM HYDRIDE DECOMPOSES WITH LIBERATION OF HYDROGEN AND A LOWMELTING POINT ALLOY CONTAINING COPPER AND TITANIUM IS FORMED, WHICH ALLOY, WHILE MOLTEN, FLOWS OVER AT LEAST A PORTION OF THE SURFACE OF SUCH ARTICLE TO COAT THE SAME, AND THEREAFTER COOLING THE SAID ARTICLE TO WELL BELOW 872*C., WHILE STILL UNDER NON-OXIDIZING CONDITIONS, WHEREBY A COATING OF AN ALLOY CONTAINING COPPER AND TITANIUM, OF ANY DESIRED THICKNESS CAN BE PRODUCED ON SAID ARTICLE.
Claim 3
Dependent Claim
113 words
A PROCESS FOR JOINING PREFORMED METAL ARTICLES COMPRISING ESSENTIALLY COPPER AT THE SURFACES TO BE JOINED WHICH COMPRISES ASSEMBLING SAID ARTICLES TOGETHER WITH A FINELY DIVIDED POWDER BETWEEN SAID SURFACES CONSISTING ESSENTIALLY OF TITANIUM HYDRIDE AND COPPER IN PROPORTIONS TO FORM A EUTECTIC ALLOY OF TITANIUM AND COPPER, HEATING THE ASSEMBLY IN A NON-OXIDIZING ATMOSPHERE TO A TEMPERATURE OF ABOUT 872*C. TO FORM A MOLTEN LAYER OF A LOW MELTING POINT ALLOY BETWEEN SAID SURFACES AND CAUSE SAID MOLTEN LAYER TO WET SAID SURFACES, AND CONTINUING THE HEATING SUBSTANTIALLY AT SAID TEMPERATURE UNTIL THE MOLTEN LAYER FREEZES BY CHANGE IN COMPOSITION DUE TO DIFFUSION TO FORM A HIGHER MELTING POINT ALLOY, AND COOLING.
Claim 4
Dependent Claim
113 words
A PROCESS FOR JOINING PREFORMED METAL ARTICLES COMPRISING ESSENTIALLY COPPER AT THE SURFACES TO BE JOINED WHICH COMPRISES ASSEMBLING SAID ARTICLES TOGETHER WITH A FINELY DIVIDED POWDER BETWEEN SAID SURFACES CONSISTING ESSENTIALLY OF TITANIUM HYDRIDE AND COPPER IN PROPORTIONS TO FORM A EUTECTIC ALLOY OF TITANIUM AND COPPER, HEATING THE ASSEMBLY IN A NON-OXIDIZING ATMOSPHERE TO A TEMPERATURE OF ABOUT 872*C. TO FORM A MOLTEN LAYER OF A LOW MELTING POINT ALLOY BETWEEN SAID SURFACES AND CAUSE SAID MOLTEN LAYER TO WET SAID SURFACES, AND CONTINUING THE HEATING SUBSTANTIALLY AT SAID TEMPERATURE UNTIL THE MOLTEN LAYER FREEZES BY CHANGE IN COMPOSITION DUE TO DIFFUSION TO FORM A HIGHER MELTING POINT ALLOY, AND COOLING.
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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) | 1953-06-19 | 1953-12-19 | 1954-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-19 | 1957-12-19 | 1958-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-19 | 1961-12-19 | 1962-06-20 | $7700.00 | Window Closed / Lapsed |