Hopper railroad car flexible top hatch cover
US11603121B2 · kind B2 · utility
0Cited by
25References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2020 |
| Grant date | Mar 14, 2023 |
| Priority date | — |
| Expiry date | Mar 28, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61D7/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hopper railroad car hatch cover including an elongated movable flexible hatch including an elongated flexible panel and an elongated magnetic coaming sealer connected to the bottom of the elongated movable flexible panel, wherein the elongated magnetic coaming sealer is configured, such that when the elongated movable hatch of the hatch cover is in the closed position on a coaming of a hopper railroad car, the elongated magnetic coaming sealer engages and creates a seal with the coaming.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.