US4191564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brass having superior adhesion and wear resistant properties
Assignee: Chuetsu Metal Works Co Ltd
•
Filing: 1978-07-13
•
Granted: 1980-03-04
•
Expires: 1998-07-13
Abstract
Abstract A brass suitable for use as the material of such mechanical parts which are required to have good adhesion and wear resistant properties such as for gears of various machines, rolls and dies for use in pipe forming and deep drawing titanium plate material, and so forth. The brass consists essentially, each by weight of, 45% to 75% of copper, 2.0% to 7.0% of aluminum, 0.1% to 2.0% of iron, 1.0% to 5.0% of nickel, 0.5% to 2.0% of silicon, 0.1% to 2.0% of cobalt and the remainder being zinc and incidental impurities.
Inventors
- 👤 Yutaka Hirao
- 👤 Kunio Hata
- 👤 Masao Hosoda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:16
CPC Classifications
C; C22; C22C; C22C9/00; C22C9/04; F; F16; F16L; F16L58/00; F16L58/02; F16L58/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
49 words
A brass having superior adhesion and wear resistant properties consisting essentially of, each by weight, 45% to 75% of copper, 2.0% to 7.0% of aluminum, 0.1% to 2.0% or iron, 1.0% to 5.0% of nickel, 0.5% to 2.0% of silicon, 0.1% to 2.0% of cobalt and the remainder zinc.
Claim 2
Dependent Claim
49 words
A brass having superior adhesion and wear resistant properties consisting essentially of, each by weight, 45% to 75% of copper, 2.0% to 7.0% of aluminum, 0.1% to 2.0% or iron, 1.0% to 5.0% of nickel, 0.5% to 2.0% of silicon, 0.1% to 2.0% of cobalt and the remainder zinc.
Claim 3
Dependent Claim
35 words
A brass according to claim 1 wherein the constituents, each by weight, are: 0.83% of iron, 5.13% of aluminum, 3.01% of nickel, 1.19% of silicon, 0.57% of cobalt, 33% of zinc and the balance copper.
Claim 4
Dependent Claim
35 words
A brass according to claim 1 wherein the constituents, each by weight, are: 0.72% of iron, 4.1% of aluminum, 3.02% of nickel, 1.11% of silicon, 0.61% of cobalt, 30.5% of zinc and the balance copper.
Claim 5
Dependent Claim
35 words
A brass according to claim 1 wherein the constituents, each by weight, are: 0.76% of iron, 3.87% of aluminum, 2.98% of nickel, 0.82% of silicon, 0.69% of cobalt, 27% of zinc and the balance copper.
Claim 6
Dependent Claim
11 words
A brass according to claim 1 comprising less than 2% silicon.
References Cited (Backward Citations)
US666670A
Cited
US1457289A
Cited
US2007008A
Cited
US2101930A
Cited
GB572472A
Cited
US3132939A
Cited
US3252793A
Cited
US3402043A
Cited
CA906786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-03-04 | 1983-09-03 | 1984-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-04 | 1987-09-03 | 1988-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-04 | 1991-09-03 | 1992-03-04 | $7700.00 | Window Closed / Lapsed |