US4019899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Erosion-resistant materials
Assignee: Furukawa Electric Co Ltd
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Filing: 1974-08-01
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Granted: 1977-04-26
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Expires: 1994-08-01
Abstract
Abstract The disclosed erosion-resistant and wear-resistant Ti-Ni-M1 alloy contains 42.5 to 54.5 atomic percent of titanium, M1 being at least one of Ta, Nb, W, Hf and Mn, the ratio of the atoms of M1 to the total atoms other than Ti being 1 to 55%.
Inventors
- 👤 Akira Negishi
- 👤 Kiyoshi Takayanagi
- 👤 Masaru Ikeda
- 👤 Shinji Kousaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:52
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/007; C22C14/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
53 words
An erosion-resistant and wear-resistant Ti-Ni-M 1 -M 2 alloy consisting essentially of 42.5 to 54.4 atomic percent of Ti, in which M 1 is Ta or Nb and M 2 is Mo, and the atomic ratio of M 1 + M 2 to the total atoms other than Ti is 1 to 55%.
Claim 2
Dependent Claim
53 words
An erosion-resistant and wear-resistant Ti-Ni-M 1 -M 2 alloy consisting essentially of 42.5 to 54.4 atomic percent of Ti, in which M 1 is Ta or Nb and M 2 is Mo, and the atomic ratio of M 1 + M 2 to the total atoms other than Ti is 1 to 55%.
Claim 3
Dependent Claim
53 words
An erosion -- resistant and wear-resistant Ti-Ni-M 1 -M 2 alloy consisting essentially of 47-52 atomic percent of Ti, in which M 1 is Ta or Nb and M 2 is Mo, and the atomic ratio of M 1 + M 2 to the total atoms other than Ti is 1 to 35%.
Claim 4
Dependent Claim
53 words
An erosion -- resistant and wear-resistant Ti-Ni-M 1 -M 2 alloy consisting essentially of 47-52 atomic percent of Ti, in which M 1 is Ta or Nb and M 2 is Mo, and the atomic ratio of M 1 + M 2 to the total atoms other than Ti is 1 to 35%.
Claim 5
Dependent Claim
58 words
An erosion -- resistant and wear -- resistant Ti-Ni-M 1 -M 2 alloy consisting essentially of 48 to 51 atomic percent of Ti, in which M 1 it Ta or N b and M 2 is Mo, and the atomic ratio of M 1 + M 2 to the total atoms other than Ti is 1 to 25%.
Claim 6
Dependent Claim
58 words
An erosion -- resistant and wear -- resistant Ti-Ni-M 1 -M 2 alloy consisting essentially of 48 to 51 atomic percent of Ti, in which M 1 it Ta or N b and M 2 is Mo, and the atomic ratio of M 1 + M 2 to the total atoms other than Ti is 1 to 25%.
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) | 1980-04-25 | 1980-10-25 | 1981-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-25 | 1984-10-25 | 1985-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-25 | 1988-10-25 | 1989-04-26 | $7700.00 | Window Closed / Lapsed |