US3999962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper-chromium carbide-metal bond for abrasive tools
Assignee: Individual
•
Filing: 1975-05-23
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Granted: 1976-12-28
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Expires: 1995-05-23
Abstract
Abstract A bond used in the manufacture of abrasive tools containing 3 - 75 wt. -% of copper, 15 - 90 wt.-% of chromium chloride; 0.01 - 10 wt.-% of a metal selected from the group including titanium, vanadium, chromium, zirconium, niobium, molybdenum, tungsten; 1 - 30 wt.-% of a low-melting metal; 2 - 30 wt.-% of the metal belonging to the iron subgroup of VIII group of the periodic chart.
Inventors
- 👤 Mark Simonovich Drui
- 👤 Rima Samuilovna Ovseevich
- 👤 Gennady Afanasievich Senkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:04
CPC Classifications
C; C22; C22C; C22C29/00; C22C29/02; C22C29/06; C22C29/067; B; B23; B23P; B23P15/00; B23P15/28; B23P15/32; B24; B24D; B24D3/00; B24D3/02; B24D3/04; B24D3/06; B24D3/08; C22C32/00; C22C32/0047; C22C32/0052; E; E21; E21B; E21B10/00; E21B10/46
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
79 words
a Bond for abrasive tools composed of 3-75 weight percent of copper, 15-90 weight percent of chromium carbide, 0.01-10 weight percent of at least one metal selected from the group consisting of titanium, vanadium, chromium, zirconium, niobium, molbydenum tungsten, 1-30 weight percent of at least one low melting metal selected from the group consisting of Sn, Zn, Cd, Pb, and Al, 2-30 weight percent of a metal belonging to the iron subgroup of group VIII of the periodic chart.
Claim 2
Dependent Claim
79 words
a Bond for abrasive tools composed of 3-75 weight percent of copper, 15-90 weight percent of chromium carbide, 0.01-10 weight percent of at least one metal selected from the group consisting of titanium, vanadium, chromium, zirconium, niobium, molbydenum tungsten, 1-30 weight percent of at least one low melting metal selected from the group consisting of Sn, Zn, Cd, Pb, and Al, 2-30 weight percent of a metal belonging to the iron subgroup of group VIII of the periodic chart.
Claim 3
Dependent Claim
34 words
A bond for abrasive tools according to claim 1 composed of 73 wt.-% of copper; 20 wt.-% of chromium carbide; 1 wt.-% of titanium; 3 wt.-% of tin and lead; 3 wt.-% of nickel.
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) | 1979-12-28 | 1980-06-28 | 1980-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-12-28 | 1984-06-28 | 1984-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-12-28 | 1988-06-28 | 1988-12-28 | $7700.00 | Window Closed / Lapsed |