US4249347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diamond paste
Assignee: Individual
•
Filing: 1979-09-18
•
Granted: 1981-02-10
•
Expires: 1999-09-18
Abstract
Abstract A diamond paste to be used for treating surfaces of workpieces comprising diamond powder in a mechanical mixture with surface-active and lubricating (cooling) components. The components of the paste are used in the following quantities (in % by weight): diamond powder filler: 30-2 green silicon carbide: up to 38 aerosil: up to 5 surface-active substance stearine: 20-5 low-molecular weight heat-resistant synthetic rubber: 20-40 lubricating cooling substance castor oil: 15-5 vaseline: 15-5
Inventors
- 👤 Svetlana T. Bura
- 👤 Jury I. Nikitin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:44
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/14; C09K3/1454; C09K3/1481
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
34 words
A diamond paste for treating surfaces of workpieces consisting essentially of (in % by weight): diamond powder: 30-2 surface-active substance-stearine: 20-5 low-molecular weight heat-resistant synthetic rubber: 20-40 lubricating cooling substance-castor oil: 15-5 vaseline: 15-5
Claim 2
Dependent Claim
34 words
A diamond paste for treating surfaces of workpieces consisting essentially of (in % by weight): diamond powder: 30-2 surface-active substance-stearine: 20-5 low-molecular weight heat-resistant synthetic rubber: 20-40 lubricating cooling substance-castor oil: 15-5 vaseline: 15-5
Claim 3
Dependent Claim
21 words
The diamond paste of claim 1 which also includes, as a filler, at least one of aerosil and green silicon carbide.
Claim 4
Dependent Claim
36 words
The diamond paste of claim 2, wherein the aerosil is present in an amount of up to 5% by weight and the green silicon carbide is present in an amount of up to 38% by weight.
Claim 5
Dependent Claim
22 words
The diamond paste of claim 5, wherein the synthetic low-molecular weight heat-resistant synthetic rubber has a viscosity of from about 601-1080 S.
References Cited (Backward Citations)
SU336340A1
Cited
SU258058A1
Cited
US2129377A
Cited
US2443698A
Cited
SU313842A1
Cited
US3789050A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-02-10 | 1984-08-11 | 1985-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-10 | 1988-08-11 | 1989-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-10 | 1992-08-11 | 1993-02-10 | $7700.00 | Window Closed / Lapsed |