US3865575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic prealloyed powder
Assignee: Huntington Alloys Corp
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Filing: 1972-12-18
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Granted: 1975-02-11
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Expires: 1992-12-18
Abstract
Abstract Prealloyed powders, particularly of compositions which are difficult to work by conventional means, are subjected to forces such that strain energy is imparted thereto by virtue of which the prealloyed powders manifest low flow stress and a high degree of thermoplasticity.
Inventors
- 👤 Timothy Earl Volin
- 👤 John Stanwood Benjamin
- 👤 Jay Michael Larson
- 👤 Robert Lacock Cairns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:22
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/02; B22F9/04; B22F2009/041
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
93 words
NEW AN IMPROVED SUPERALLOY PREALLOY POWDER, SAID POWDER CONTAINING UP TO 60% CHROMIUM, UP TO 30% COBALT, UP TO 8% TITANIUM, UP TO 30% MOLYBDENUM, UP TO 25% TUNGSTEN, UP TO 10% COLUMBIUM, UP TO 10% TANTALUM, UP TO 7% ZIRCONIUM, UP TO 0.5% BORON, UP TO 5% HAFNIUM, UP TO 6% COPPER, UP TO 5% MANGANESE, UP TO 70% IRON, UP TO 4% SILICON, AND THE BALANCE ESSENTIALLY NICKEL, AND BEING FURTHER CHARACTERIZED IN THAT IT IS IN THE STRAIN ENERGY INDUCED CONDITION WITH A THERMOPLASTIC PHYSICAL CHARACTERISTIC OF AT LEAST TPC-1.
Claim 2
Dependent Claim
93 words
NEW AN IMPROVED SUPERALLOY PREALLOY POWDER, SAID POWDER CONTAINING UP TO 60% CHROMIUM, UP TO 30% COBALT, UP TO 8% TITANIUM, UP TO 30% MOLYBDENUM, UP TO 25% TUNGSTEN, UP TO 10% COLUMBIUM, UP TO 10% TANTALUM, UP TO 7% ZIRCONIUM, UP TO 0.5% BORON, UP TO 5% HAFNIUM, UP TO 6% COPPER, UP TO 5% MANGANESE, UP TO 70% IRON, UP TO 4% SILICON, AND THE BALANCE ESSENTIALLY NICKEL, AND BEING FURTHER CHARACTERIZED IN THAT IT IS IN THE STRAIN ENERGY INDUCED CONDITION WITH A THERMOPLASTIC PHYSICAL CHARACTERISTIC OF AT LEAST TPC-1.
Claim 3
Dependent Claim
20 words
New and improved superalloy prealloy powder in accordance with claim 1 having a Thermoplastic Physical Characteristic of at least TPC-2.
Claim 4
Dependent Claim
20 words
New and improved superalloy prealloy powder in accordance with claim 1 having a Thermoplastic PhYsical Characteristic of at least TPC-3.
Claim 5
Dependent Claim
47 words
New and improved superalloy prealloy powder in accordance with claim 2 in which the prealloy is a member of the group consisting of IN-100, IN-738, IN-792, Rene alloys 41 and 95, Waspaloy, Astroloy, Alloys 500, 700, 713 and 718, Mar-M alloys 200 and 246 and Alloy A-286.
References Cited (Backward Citations)
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US3728088A
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US3671230A
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US3631583A
Cited
US3639179A
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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) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |