Carbon friction strip with a damage detection facility
US5176230A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 14, 1991 |
| Grant date | Jan 5, 1993 |
| Priority date | — |
| Expiry date | Jun 14, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60L2200/26
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention relates to a friction strip serving for the transfer of electrical energy to rolling stock and comprising a damage detection device. The friction strip consists of a wearing strip (2) of carbon based material comprising a groove (3) on its face which is in contact with the stirrup member (5) and a tightly sealed tube (4) placed in the groove is connected to the detection device. The material constituting the tube and the material constituting the wearing strip are selected to have closely related mechanical and thermo-mechanical characteristics; this is achieved with a tightly sealed tube of carbon based material. The invention also relates to the method of producing the friction strip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.