Railroad freight car access fittings
US12054182B2 · kind B2 · utility
0Cited by
15References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 2020 |
| Grant date | Aug 6, 2024 |
| Priority date | — |
| Expiry date | Jun 8, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06C7/182
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A railroad freight car may have external fittings, such as trackside-accessible ladder fittings that permit personnel to climb onto the decks and walkways of the car. Several embodiments of movable ladder assemblies are described that provide an extended or deployed or raised position of a handhold, and a retracted or lowered, or stored position. In other embodiments, the assembly is provided with a compliant member that allows the handhold resiliently to flex when encountered by solid objects such as shipping containers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.