Flutter-resistant caster
US4097954A · kind A · utility
14Cited by
1References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 26, 1977 |
| Grant date | Jul 4, 1978 |
| Priority date | — |
| Expiry date | Jan 26, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60B33/0002
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Fluttering of caster wheels having a swivel mechanism including ball-type or roller-type bearings is effectively prevented by substituting, for some of the steel rolling elements of the bearings, resilient rubber-like rolling elements of somewhat greater diameter. Flutter resistance and steering characteristics of the caster can be varied by varying the size of the resilient rolling elements, or the proportion of resilient rolling elements to steel rolling elements in the bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.