Greaseless door lock
US6708625B1 · kind B1 · utility
18Cited by
16References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2000 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | Jun 29, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/0975
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A greaseless door lock for doors on railroad cars which eliminates the need to lubricate the door locks. The greaseless door lock includes a C-shaped bracket having a side wall and spaced apart end walls attached to the side wall wherein the end walls include aligned aperatures for slidably receiving a locking pin. The greaseless door lock includes at least one bushing mounted in each aperature to prevent the locking pin from engaging the end walls. Two semi-clyindrical bushings or one cylindrical bushing may be mounted in each aperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.