Bearings for the vibration-causing assembly of a vibrating screed
US7572082B2 · kind B2 · utility
10Cited by
15References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 22, 2005 |
| Grant date | Aug 11, 2009 |
| Priority date | — |
| Expiry date | Apr 16, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04F21/242
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A vibrating device for surfacing concrete comprising a surfacing blade, a vibration-causing assembly in communication with the surfacing blade and an actuator in communication with the vibration-causing assembly for imparting a vibratory motion to the blade. The vibration-causing assembly comprises a shaft assembly and a bearing assembly in communication with said shaft assembly. The bearing-assembly provides for substantially avoiding undesired movement of said blade during the vibratory motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.