Brake actuator service limit sensor
US5934415A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 1997 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | May 27, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D66/025
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A brake actuator having a switch device mounted to an actuator housing with a spring member partially surrounding an actuator rod and adapted to contact a large diameter section of the actuator rod when brake wear causes the actuator rod to travel to a service limit position. In normal operation the spring member is separated from a small diameter section of the actuator rod. The switch device is mounted to a first end of the spring member having first and second electrical contacts which extend and electrically contact a conduction plate attached to a second end of the spring member as long as the brake actuator rod has not traveled to the service limit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.