Capstan-driven air pump system for opening and closing a longitudinal railcar door
US11649744B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2020 |
| Grant date | May 16, 2023 |
| Priority date | — |
| Expiry date | Nov 18, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B49/03
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
According to some embodiments, an apparatus comprises an air pump configured to couple to a capstan, and a pneumatic cylinder coupled to the air pump at a first end of the pneumatic cylinder. The pneumatic cylinder comprises a piston. Rotation of the capstan in a first rotational direction causes the air pump to provide air pressure to the first end of the pneumatic cylinder. In response to the air pump providing air pressure to the first end of the pneumatic cylinder, the piston of the pneumatic cylinder moves in a first linear direction. The piston is coupled to a longitudinal beam of a longitudinal door system of a railcar. In response to the piston moving in the first linear direction, the longitudinal beam moves in the first linear direction, opening a door of the longitudinal door system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.