Door lifter construction
US4155145A · kind A · utility
0Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1978 |
| Grant date | May 22, 1979 |
| Priority date | — |
| Expiry date | Apr 24, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47H99/00
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A door lifter mechanism for a railway car door is operable by a handle which acts on two fulcrum bars. A fulcrum bar lifter roller is carried by the handle and supports the ends of the fulcrum bars, which are joined by a pivot spool received in slots in the fulcrum bars.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.