Patent US2842835A successfully refreshed from Google Patents.
US2842835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Articles of titanium alloys
Assignee: Rolls Royce PLC
•
Filing: 1955-06-20
•
Granted: 1958-07-15
•
Expires: 1975-06-20
Abstract
No abstract record available.
Inventors
- 👤 Gresham Harold Ernest
- 👤 Hall Douglas Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:21
CPC Classifications
B; B21; B21J; B21J5/00; B21J5/002; B21K; B21K1/00; B21K1/28; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49481; Y10T29/49492; Y10T29/49496; Y10T29/49499; Y10T29/49501
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
THE METHOD OF MANUFACTURE OF A FORGED ARTICLE FROM TITANIUM ALLOYS WHICH COMPRISES PERFABRICATING THE ARTICLE IN PARTS SADAPTED TO BE WELDED TOGETHER, FORMING THE PARTS AT THE PLACES WHERE THE WELDS ARE TO BE MADE TO GREATER CROSS SECTION THAN THE PARTS OF THE MATERIAL ADJACENT THERETO WHICH ARE TOO THIN FOR WELDING, GROOVING THE JUNCTION BETWEEN THE PARTS ON ONE SIDE OF THE ARTICLE WHEN PLACED READY FOR WELDING SO AS TO RECEIVE WELDING FILLER MATERIAL, WELDING THE PARTS TOGETHER USING A FILLER MATERIAL OF TITANIUM ALLOY, THEN GROOVING THE OTHER SIDE AND WELDING WITH FILLER MATERIAL IF TITANIUM, FORGING DOWN THE JUNCTION SO THAT IT IS OF A THICKNESS SUBSTANTIALLY EQUAL TO THAT OF THE MATERIAL ADJACENT THERETO AND THEN ANCEALING THE ARTICLE.
Claim 2
Independent Claim
126 words
THE METHOD OF MANUFACTURE OF A FORGED ARTICLE FROM TITANIUM ALLOYS WHICH COMPRISES PERFABRICATING THE ARTICLE IN PARTS SADAPTED TO BE WELDED TOGETHER, FORMING THE PARTS AT THE PLACES WHERE THE WELDS ARE TO BE MADE TO GREATER CROSS SECTION THAN THE PARTS OF THE MATERIAL ADJACENT THERETO WHICH ARE TOO THIN FOR WELDING, GROOVING THE JUNCTION BETWEEN THE PARTS ON ONE SIDE OF THE ARTICLE WHEN PLACED READY FOR WELDING SO AS TO RECEIVE WELDING FILLER MATERIAL, WELDING THE PARTS TOGETHER USING A FILLER MATERIAL OF TITANIUM ALLOY, THEN GROOVING THE OTHER SIDE AND WELDING WITH FILLER MATERIAL IF TITANIUM, FORGING DOWN THE JUNCTION SO THAT IT IS OF A THICKNESS SUBSTANTIALLY EQUAL TO THAT OF THE MATERIAL ADJACENT THERETO AND THEN ANCEALING THE ARTICLE.
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) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |