Coupler cross keys
US12409872B1 · kind B1 · utility
0Cited by
1References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2022 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | Jun 29, 2044 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61G9/24
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
EOCC draft gear assemblies and cross keys for those assemblies are disclosed. In one embodiment, the cross key consists of a unitary generally T-shaped member having opposed lateral first and second end portions, a base portion formed with the first end portion, and a transition portion disposed between the base portion and the second end portion and formed with the base portion and the second end portion. The transition portion includes opposed longitudinal first and second transition faces. Each of the first and second transition faces has a shape that includes two or more radiuses of curvature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.