US4362535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sintered metal bonded diamond abrasive articles
Assignee: Mitsui Kinzoku Co Ltd
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Filing: 1980-10-08
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Granted: 1982-12-07
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Expires: 2000-10-08
Abstract
Abstract PCT No. PCT/JP80/00242 Sec. 371 Date Jun. 9, 1981 Sec. 102(e) Date May 20, 1981 PCT Filed Oct. 8, 1980 PCT Pub. No. WO81/00981 PCT Pub. Date Apr. 16, 1981.This invention provides a metal bonded diamond abrasive article of nickel-copper basis. The sintered metal bond, which consists essentially of 2 to 30% by weight of copper, 1 to 40% by weight of tin, 0.2 to 3% by weight of phosphorous, and at least 50% by weight of the remainder nickel, well disperses and retains diamond grits and minimizes the clogging and the variation in rate of stock removal.
Inventors
- 👤 Eiji Isobe
- 👤 Izumi Hayakawa
- 👤 Akira Emura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:50
CPC Classifications
C; C22; C22C; C22C26/00; B; B24; B24D; B24D3/00; B24D3/02; B24D3/04; B24D3/06; B24D3/08
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
75 words
A metal bonded diamond abrasive article composed of a diamond powder and of a sintered nickel base metal bond retaining the diamond powder, which is characterized in that the sintered metal bond consists essentially of 2 to 30% by weight of copper, 1 to 40% by weight of tin, 0.2 to 3% by weight of phosphorous, and the balance of nickel, the total amount of copper, tin, and phosphorous being less than 50% by weight.
Claim 2
Dependent Claim
75 words
A metal bonded diamond abrasive article composed of a diamond powder and of a sintered nickel base metal bond retaining the diamond powder, which is characterized in that the sintered metal bond consists essentially of 2 to 30% by weight of copper, 1 to 40% by weight of tin, 0.2 to 3% by weight of phosphorous, and the balance of nickel, the total amount of copper, tin, and phosphorous being less than 50% by weight.
Claim 3
Dependent Claim
49 words
A metal bonded diamond abrasive article of claim 1, wherein the sintered metal bond consists essentially of 3 to 20% by weight of copper, 2 to 30% by weight of tin, 0.3 to 2% by weight of phosphorous, and the balance of 70% by weight or more 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) | 1985-12-06 | 1986-06-07 | 1986-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-06 | 1990-06-07 | 1990-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-06 | 1994-06-07 | 1994-12-07 | $7700.00 | Window Closed / Lapsed |