Seal member for a vibrating screed
US7549822B2 · kind B2 · utility
9Cited by
16References
44Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 22, 2005 |
| Grant date | Jun 23, 2009 |
| Priority date | — |
| Expiry date | Apr 15, 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 so as to cause the vibration-causing assembly to impart a vibratory motion to the blade. A seal member is mounted about the junction between the actuator and the vibration-causing assembly. The said seal member seals the junction from concrete during surfacing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.