Constant contact side bearing assembly with improved cap machining for a railcar
US7802524B1 · kind B1 · utility
11Cited by
8References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 11, 2009 |
| Grant date | Sep 28, 2010 |
| Priority date | — |
| Expiry date | Aug 11, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61F5/142
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A constant contact side bearing assembly includes a housing, a cap and an elastomeric resilient compressible element mounted within the interior chamber. The exterior surface of the cap wall has a generally even circumferential region which does not include protrusions or cavities other than small irregularities that are common to a casting process by which the cap of the present invention is manufactured. Accordingly, the anti-rotational tabs are positioned below this region and are operatively received within the channels disposed on the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.