Selective cushioning apparatus assembly
US10513275B2 · kind B2 · utility
0Cited by
25References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2018 |
| Grant date | Dec 24, 2019 |
| Priority date | — |
| Expiry date | Sep 17, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61G9/06
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A selective cushioning apparatus for a railway car absorbs draft and buff loads applied to a coupler of a railway car during train assembly and normal operation. The apparatus according to the invention provides better cushioning than a conventional draft gear without the excessive travel and maintenance issues of a hydraulic cushioning unit. In embodiments, the selective cushioning unit is adapted to fit into an AAR standard pocket for a hydraulic cushioning unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.