Carbon--carbon composite elevator safety brakes
US5979615A · kind A · utility
14Cited by
7References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1997 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Nov 6, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2127/10
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An elevator safety brake for stopping an elevator car is provided with a brake shoe having a carbon-carbon composite friction surface for contacting an elevator guide rail surface to provide a stopping force. The friction surface of the brake formed from the carbon-carbon composite exhibits a consistent high friction and low wear suitably accommodating high speed, high load elevators installed in very tall buildings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.