US3306741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction linings and processes for the production of such linings
Assignee: Hispano Suiza Lallemant SA
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Filing: 1965-06-21
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Granted: 1967-02-28
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Expires: 1985-06-21
Abstract
No abstract record available.
Inventors
- 👤 Lallemant Pierre Martin Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:25
CPC Classifications
C; C22; C22C; C22C33/00; C22C33/02; C22C33/0257; C22C33/0278; C22C33/0292; B; B22; B22F; B22F7/00; B22F7/06; B22F7/08; C22C29/00; C22C29/02; C22C29/06; C22C29/062; C22C32/00; C22C32/0047; C22C32/0052; C22C32/0057; F; F16; F16D; F16D69/00; F16D69/02; F16D69/027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A METHOD OF MANUFACTURING A LIMING FOR BRAKES, CLUTCHES AND THE LIKE, COMPRISING THE STEPS OF: (A) FORMING A MIXTURE CONSISTING ESSENTIALLY OF 30% TO 90% BY WEIGHT BORON CARBIDE POWDER AND A POWDER OF A LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF COBALT, CHROMIUM AND NICKEL. (B) FORMING THE MIXTURE INTO THE SHAPE DESIRED FOR THE LINING, AND (C) SINTERING SAID MIXTURE OF A TEMPERATURE OF AT MOST 1250*C. IN A NON-OXIDIZING ATMOSPHERE ADAPTED TO PREVENT DECOMPOSITION OF BORON CARBIDE UNDER THE ACTION OF HEAT.
Claim 2
Independent Claim
88 words
A METHOD OF MANUFACTURING A LIMING FOR BRAKES, CLUTCHES AND THE LIKE, COMPRISING THE STEPS OF: (A) FORMING A MIXTURE CONSISTING ESSENTIALLY OF 30% TO 90% BY WEIGHT BORON CARBIDE POWDER AND A POWDER OF A LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF COBALT, CHROMIUM AND NICKEL. (B) FORMING THE MIXTURE INTO THE SHAPE DESIRED FOR THE LINING, AND (C) SINTERING SAID MIXTURE OF A TEMPERATURE OF AT MOST 1250*C. IN A NON-OXIDIZING ATMOSPHERE ADAPTED TO PREVENT DECOMPOSITION OF BORON CARBIDE UNDER THE ACTION OF HEAT.
References Cited (Backward Citations)
US2124538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |