Rotating brake disc subassembly with segmented beryllium core
Abstract
Abstract BRAKE DISCS WHICH HAVE A PAIR OF ANNULAR STEEL PLATES AND SEGMENTED BERYLLIUM FILLER PLATES BETWEEN THE ANNULAR STEEL PLATES. THE STEEL PLATES HAVE SINTERED METALLIC OUTER FACES AND ARE RIVETED TOGETHER ON OPPOSITE SIDES OF THE BERYLLIUM PLATES. THE BERYLLIUM FILLER PLATES EXTEND FROM THE CENTER OF ONE KEY SLOT TO THE CENTER OF THE ADJACENT KEY SLOT AND EACH OF THE FILLER PLATES IS SLOPED AT ITS OUTER END SO THAT THE ADJACENT FILLER PLATES DEFINE A VSHAPED NOTCH CENTERED WITH THE KEY SLOT. TRIANGULAR STEEL INSERTS ARE RIVETED TO THE STEEL PLATES AT THE KEY SLOTS. THE TRIANGULAR INSERTS SERVE TO TRANSMIT TORQUE ACROSS A BROAD AREA TO THE BERYLLIUM FILLER PIECES BY WEDGING ACTION BETWEEN THE SIDES OF THE INSERTS AND THE SLOPED PORTIONS OF THE FILLER PLATES. D R A W I N G
Inventors
- 👤 J Dernovshek
- 👤 P Bermingham
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |