Wheel assembly capable of maintaining engagement with a rail having an uneven portion therein
US5664502A · kind A · utility
8Cited by
9References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 27, 1994 |
| Grant date | Sep 9, 1997 |
| Priority date | — |
| Expiry date | Jul 27, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C9/12
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Wheel assembly capable of maintaining engagement with a rail having an uneven portion therein. The wheel assembly includes a frame adapted to pivot about a pivot axis defined by the frame. At least one wheel is rotatably connected to the frame for traversing the rail. The wheel maintains engagement with the rail as the wheel traverses the uneven portion of the rail because the frame pivots about the pivot axis as the wheel encounters the uneven portion of the rail. Service tooling may be suspended from the wheel assembly to service a nuclear reactor pressure vessel located below the rail.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.