US2761047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joining aluminum and aluminum alloy to titanium and titanium alloy
Assignee: North American Aviation Corp
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Filing: 1954-01-11
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Granted: 1956-08-28
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Expires: 1974-01-11
Abstract
No abstract record available.
Inventors
- 👤 Harlan L Meredith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:21
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/19; B23K9/00; B23K9/23; B23K9/232
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
THE PROCES OF JOINING ALUMINUM AND ITS ALLOYS TO TITANIUM AND ITS ALLOYS COMPRISING THE STEPS OF PLACING THE METALS TO BE WELDED IN ABUTTING RELATIONSHIPS, PLAYING AN INERT GAS HEATING ARE OVER SURFACE AREAS ADJACENT THE ABUTMENT OF SAID METALS, HEATING SAID SURFACE AREAS TO A TEMPERATURE ABOUE THE FUSION TEMPERATURE OF ALUMINUM AND BELOW THE FUSION TEMPEARTURE OF TITANIUM WITH SAID ARE, AND ADDING AN ALUMINUM-BASE FILLER METAL TO THE ABUTTING JOINT EDGES WHEREBY THE FILER METAL IS BRAZED TO THE TITANIUM METAL AND WELDED TO THE ALUMINUM METAL.
Claim 2
Dependent Claim
91 words
THE PROCES OF JOINING ALUMINUM AND ITS ALLOYS TO TITANIUM AND ITS ALLOYS COMPRISING THE STEPS OF PLACING THE METALS TO BE WELDED IN ABUTTING RELATIONSHIPS, PLAYING AN INERT GAS HEATING ARE OVER SURFACE AREAS ADJACENT THE ABUTMENT OF SAID METALS, HEATING SAID SURFACE AREAS TO A TEMPERATURE ABOUE THE FUSION TEMPERATURE OF ALUMINUM AND BELOW THE FUSION TEMPEARTURE OF TITANIUM WITH SAID ARE, AND ADDING AN ALUMINUM-BASE FILLER METAL TO THE ABUTTING JOINT EDGES WHEREBY THE FILER METAL IS BRAZED TO THE TITANIUM METAL AND WELDED TO THE ALUMINUM METAL.
References Cited (Backward Citations)
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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) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |