US3693246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brazing solder
Assignee: Individual
•
Filing: 1970-11-17
•
Granted: 1972-09-26
•
Expires: 1990-11-17
Abstract
Abstract The invention relates to brazing solders applied for brazing parts made of steel, cast iron, copper and nickel alloys, as well as of noble metals and alloys having their melting point lying above 800* C. The invention is characterized in that the brazing solder proposed therein, has the following weight percent composition: Cu, 20-65; Mn, 15-35, Ag, 15-25; and Ni, 5-20; Zn, 0-15.
Inventors
- 👤 Vladimir Vasilievich Novikov
- 👤 Alexandr Ivanovich Gubin
- 👤 Vasily Mikhailovich Sorokin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:36
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3026; B23K35/302
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
26 words
A brazing solder consisting essentially of: Cu 41-49 wt. percent Mn 21-23 wt. percent Ag 20-23 wt. percent Ni 10-13 wt. percent Zn 0-15 wt. percent
Claim 2
Dependent Claim
34 words
The brazing solder as claimed in claim 1, into whose composition are introduced: Si up to 0.5 wt. percent max. P up to 0.3 wt. percent max. B up to 0.3 wt. percent max.
Claim 3
Dependent Claim
37 words
A process for brazing steel, cast iron, copper, nickel, noble metals and alloys thereof said metals and alloys having a melting point above 800* C, comprising brazing the metals with a brazing alloy according to claim 1.
Claim 4
Dependent Claim
32 words
The process according to claim 4 wherein the brazing solder includes: Si up to 0.5 wt. percent max. P up to 0.3 wt. percent max. B up to 0.3 wt. percent max.
References Cited (Backward Citations)
US3577234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |