Door finger guide for doors on auto rack cars
US4917021A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 21, 1989 |
| Grant date | Apr 17, 1990 |
| Priority date | — |
| Expiry date | Feb 21, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61D19/007
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A door finger guide for doors an auto rack cars to guide the upper ends of the doors along an upper track during opening and closing operations. The door finger guide includes a metal supporting member or base plate having a lower end secured to the door and an upper end in alignment with the upper door track. Plastic bearing means is secured to the upper ends of the door guides which are mounted in opposing relation for coaction with the track. The door guides and plastic bearing portions are diminished so that the tolerance with the track is minimized to reduce vibration in the door and all components associated with the door and located below the guides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.