At-a-glance brake travel indicator
US5226509A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 3, 1992 |
| Grant date | Jul 13, 1993 |
| Priority date | — |
| Expiry date | Feb 3, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2125/30
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A Brake Travel Indicator for use on a vehicle having a plurality of air brake assemblies secured to the undercarriage of the vehicle and stationary with respect thereto, responsive solely to the linear movement of the push rod clevis of each air brake assembly to provide a visible indication of excess linear movement of the push rod clevis and probable need for brake maintenance as well as an indication of the particular wheel where such maintenance is probably needed and comprising a travel indicator tube which slideably engages with a fixed reference tube to slide in and out of said reference tube to provide visible indication of probable need for brake maintenance and an electrical monitoring system cooperating with the travel indicator tube comprising a continuous electrical circuit connected to a remote display panel with a plurality of multicolored lamps to indicate excess brake travel by one colored lighted lamp, to indicate open circuit or power loss condition by lack of lighted colored lamps, and to indicate normal brake travel and system operational by another color lighted lamp, and a power source either within or remote from the vehicle to energize the electrical system…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.