Patent US4101348A successfully refreshed from Google Patents.
Patent US3136952A successfully refreshed from Google Patents.
US4865663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature shape memory alloys
Assignee: HOSKINS ALLOYS LLC
•
Filing: 1988-03-18
•
Granted: 1989-09-12
•
Expires: 2008-03-18
Abstract
Abstract A nickel-titanium-palladium based alloy for converting heat energy into mechanical energy. The alloy exhibits shape memory. The alloy contains palladium to raise the temperature at which the alloy flexes between a deformed condition at a relatively colder temperature and a nondeformed condition at a relatively higher temperature. The alloy is characterized by including boron for increasing the fabricability of the alloy.
Inventors
- 👤 Steven M. Tuominen
- 👤 Robert J. Biermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:00
CPC Classifications
C; C22; C22C; C22C30/00; C22F; C22F1/00; C22F1/006
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
91 words
An alloy composition which exhibits shape memory due to thermoelectric martensitic phase transformation in response to heat by passing through a transition temperature between a relatively cool temperature below said transition temperature and a relatively warm temperature above said transition temperature, said composition consisting essentially of from about 49.80 atomic % to about 50.40 atomic % titanium, about 27.0 atomic % palladium, from about 22.50 to about 23.12 atomic % nickel, said composition further including from about 0.08 atomic % to about 0.10 atomic % boron for increasing the fabricability thereof.
Claim 2
Dependent Claim
91 words
An alloy composition which exhibits shape memory due to thermoelectric martensitic phase transformation in response to heat by passing through a transition temperature between a relatively cool temperature below said transition temperature and a relatively warm temperature above said transition temperature, said composition consisting essentially of from about 49.80 atomic % to about 50.40 atomic % titanium, about 27.0 atomic % palladium, from about 22.50 to about 23.12 atomic % nickel, said composition further including from about 0.08 atomic % to about 0.10 atomic % boron for increasing the fabricability thereof.
Claim 3
Dependent Claim
91 words
An alloy composition which exhibits shape memory due to thermoelastic martensitic phase transformation in response to heat by passing through a transition temperature between a relatively cool temperature below said transition temperature, and a relatively warm temperature above said transition temperature said composition consisting essentially of about 50.70 atomic % titanium, from about 29.0 to about 35.0 atomic % palladium, from about 14.12 atomic % to about 20.18 atomic % nickel, said composition further including from about 0.01 atomic % to about 0.18 atomic % boron for increasing the fabricability thereof.
Claim 4
Dependent Claim
91 words
An alloy composition which exhibits shape memory due to thermoelastic martensitic phase transformation in response to heat by passing through a transition temperature between a relatively cool temperature below said transition temperature, and a relatively warm temperature above said transition temperature said composition consisting essentially of about 50.70 atomic % titanium, from about 29.0 to about 35.0 atomic % palladium, from about 14.12 atomic % to about 20.18 atomic % nickel, said composition further including from about 0.01 atomic % to about 0.18 atomic % boron for increasing the fabricability thereof.
Claim 5
Dependent Claim
20 words
The alloy composition as set forth in either claim 1 or 2 wherein said transition temperature is above 300° F.
Claim 6
Dependent Claim
85 words
An alloy composition which exhibits shape memory due to thermoelastic martensitic phase transformation in response to heat by passing through a transition temperature between a relatively cool temperature below said transition temperature and a relatively warm temperature above said transition temperature, said composition consisting essentially of about 50.7 atomic % titanium, about 27 atomic % palladium, from about 21.70 to about 22.16 atomic % nickel, said composition further including from about 0.14 atomic % to about 0.60 atomic % boron for increasing the fabricability thereof.
Claim 7
Dependent Claim
85 words
An alloy composition which exhibits shape memory due to thermoelastic martensitic phase transformation in response to heat by passing through a transition temperature between a relatively cool temperature below said transition temperature and a relatively warm temperature above said transition temperature, said composition consisting essentially of about 50.7 atomic % titanium, about 27 atomic % palladium, from about 21.70 to about 22.16 atomic % nickel, said composition further including from about 0.14 atomic % to about 0.60 atomic % boron for increasing the fabricability thereof.
Claim 8
Dependent Claim
85 words
An alloy composition which exhibits shape memory due to thermoelastic martensitic phase transformation in response to heat by passing through a transition temperature between a relatively cool temperature below said transition temperature and relatively warm temperature above said transition temperature, said composition consisting essentially of 50.7 atomic % titanium, about 20.0 atomic % palladium, from about 29.19 atomic % to about 29.27 atomic % nickel, said composition further including from about 0.03 atomic % to about 0.11 atomic % boron for increasing the fabricability thereof.
Claim 9
Dependent Claim
85 words
An alloy composition which exhibits shape memory due to thermoelastic martensitic phase transformation in response to heat by passing through a transition temperature between a relatively cool temperature below said transition temperature and relatively warm temperature above said transition temperature, said composition consisting essentially of 50.7 atomic % titanium, about 20.0 atomic % palladium, from about 29.19 atomic % to about 29.27 atomic % nickel, said composition further including from about 0.03 atomic % to about 0.11 atomic % boron for increasing the fabricability thereof.
Claim 10
Dependent Claim
75 words
An alloy composition which exhibits shape memory due to thermoelastic martensitic phase transformation in response to heat by passing through a transition temperature between a relatively cool temperature below said transition temperature and a relatively warm temperature above said transition temperature, said composition consisting essentially of about 50.7 atomic % titanium, about 22.3 atomic % palladium, about 26.88 atomic % nickel, said composition further including about 0.12 atomic % boron for increasing the fabricability thereof.
Claim 11
Dependent Claim
75 words
An alloy composition which exhibits shape memory due to thermoelastic martensitic phase transformation in response to heat by passing through a transition temperature between a relatively cool temperature below said transition temperature and a relatively warm temperature above said transition temperature, said composition consisting essentially of about 50.7 atomic % titanium, about 22.3 atomic % palladium, about 26.88 atomic % nickel, said composition further including about 0.12 atomic % boron for increasing the fabricability thereof.
Claim 12
Dependent Claim
75 words
An alloy composition which exhibits shape memory due to thermoelastic martensitic phase transformation in response to heat by passing through a transition temperature between a relatively cool temperature below said transition temperature and a relatively warm temperature about said transition temperature, said composition consisting essentially of about 50.7 atomic % titanium, about 27.0 atomic % palladium, about 20.48 atomic % nickel, said composition further including about 1.82 atomic % boron for increasing the fabricability thereof.
Claim 13
Dependent Claim
75 words
An alloy composition which exhibits shape memory due to thermoelastic martensitic phase transformation in response to heat by passing through a transition temperature between a relatively cool temperature below said transition temperature and a relatively warm temperature about said transition temperature, said composition consisting essentially of about 50.7 atomic % titanium, about 27.0 atomic % palladium, about 20.48 atomic % nickel, said composition further including about 1.82 atomic % boron for increasing the fabricability thereof.
Claim 14
Dependent Claim
23 words
The alloy composition as set forth in any one of claims 4, 6 or 7 wherein said transition temperature is above 200° F.
References Cited (Backward Citations)
US4728580A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-11 | 1993-03-13 | 1993-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-11 | 1997-03-13 | 1997-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-11 | 2001-03-13 | 2001-09-12 | $7700.00 | Window Closed / Lapsed |