US3617261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wrought nickel base superalloys
Assignee: CYCLOPS CORP SPECIALTY STEEL D
•
Filing: 1968-02-08
•
Granted: 1971-11-02
•
Expires: 1988-02-08
Abstract
Abstract A wrought nickel base superalloy having an exacting combination of tungsten, tantalum, aluminum, nickel, boron, zirconium, carbon, manganese, silicon, chromium, cobalt, molybdenum, and titanium for minimization of deleterious phase formations and a resultant alloy capable of being hot worked and having good strength properties at high temperatures.
Inventors
- 👤 Louis W Lherbier
- 👤 Frank J Rizzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:30
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/03; C22C19/05; C22C19/051; C22C19/056
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
20 words
An alloy of the composition set forth in claim 1 characterized by an electron vacancy number of 1.9 to 2.7.
Claim 2
Dependent Claim
67 words
A wrought nickel base alloy for use up to 1,900* F. composing by weight percent 0.30 to 0.40 carbon, 1.00 max. manganese, 1.00 max. silicon, 11.00 to 13.00 chromium, 9.00 to 11.00 cobalt, 2.50 to 3.50 molybdenum, 5.50 to 6.50 tungsten, 1.25 to 1.75 tantalum, 4.45 to 4.70 aluminum, 2.80 to 3.20 titanium, 0.008 to 0.018 boron, 0.005 to 0.150 zirconium, 1.0 max. iron, and balance nickel.
Claim 3
Dependent Claim
24 words
An alloy of the composition set forth in claim 3 characterized also by an electron vacancy number in the range of 2.3 to 2.5.
Claim 4
Dependent Claim
27 words
The alloy of claim 3 containing up to 0.50 percent by weight misch metal, the misch metal composing a mixture of rare earth elements in metallic form.
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) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |