Roller or wheel assembly for patio doors
US5116142A · kind A · utility
2Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1991 |
| Grant date | May 26, 1992 |
| Priority date | — |
| Expiry date | Jun 21, 2011 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/132
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention provides a wheel or roller assembly for a patio door or the like comprising a carriage having two parallel spaced side plates, and a wheel rotatably mounted within the carriage by means of a pair of spaced ball- or roller-bearing sets, one at or adjacent each side thereof. In a preferred embodiment, the inner and outer races of a pair of ball bearing sets are provided by inturned arcuate portions of the side plates and interior edge regions, for example lined arcuate grooves, of the wheel respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.