Plug sliding door
US4098022A · kind A · utility
9Cited by
7References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 17, 1977 |
| Grant date | Jul 4, 1978 |
| Priority date | — |
| Expiry date | Jan 17, 1997 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/51
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A plug type of railway car door includes vertical edge beams of tubular construction connected by corrugated panel means. The beams are of a construction reacting with the door parts to effectively center the door within its opening and seal the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.