Railcar cushioning device with internal elastomeric spring
US6199708A · kind A · utility
15Cited by
84References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 5, 1999 |
| Grant date | Mar 13, 2001 |
| Priority date | — |
| Expiry date | Mar 5, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2236/045
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A railcar cushioning device with a gas charged cylinder and a piston contained in the cylinder for cushioning buff and draft impacts. An elastomer spring is contained in the cylinder between the piston and an end of the cylinder to locate the piston in a neutral position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.