US3773502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum-zinc-alloy
Assignee: Voestalpine AG
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Filing: 1970-12-01
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Granted: 1973-11-20
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Expires: 1990-12-01
Abstract
Abstract The invention relates to an aluminum-zinc-alloy consisting of 50 to 75 % aluminum, 0.3 to 1.5 % manganese and, if desired, copper, nickel, silicium, lithium and chromium, remainder zinc. As compared to known alloys used for the production of bearings these new alloys are provided with an increased red hardness, high load sustaining capacity at sliding movement, lasting accuracy to gauge, high mechanical strength, adequate resistance to corrosion, essentially increased resistance to creeping, increased applicability as casting and kneading material, and may be hot shaped at high working speeds with temperatures of the range 275* to 450* C.
Inventors
- 👤 G Horvath
- 👤 H Mayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:33
CPC Classifications
C; C22; C22C; C22C21/00; C22C21/10
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
18 words
The aluminum-zinc-alloy set forth in claim 1, wherein the aluminum content amounts to from 55 to 65 %.
Claim 2
Dependent Claim
18 words
The aluminum-zinc-alloy set forth in claim 1, wherein the manganese content amounts to from 0.5 to 0.8 %.
Claim 3
Dependent Claim
42 words
An aluminum-zinc-alloy consisting essentially of 50 to 75 % aluminum, 0.3 to 1.5 % manganese, 0 to 3 % copper, 0 to 1 % nickel, 0 to 0.6 % silicon, 0 to 0.1 % lithium, 0 to 0.5 % chromium, balance zinc.
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) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |