Riding concrete trowel with stabilizers
US8132983B2 · kind B2 · utility
5Cited by
11References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2009 |
| Grant date | Mar 13, 2012 |
| Priority date | — |
| Expiry date | Jan 28, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04F21/247
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In a riding concrete finishing trowel, a stabilizer is operatively disposed between the frame and either the gearbox or a structure that is coupled to the gearbox so as reduce the effects of rotor assembly vibration on the trowel. In one embodiment, the stabilizer takes the form of a gas spring located between the frame and the pitch control post. The stabilizer may be located relatively close to the top of the pitch control post so as to take advantage of the mechanical advantage offered by the spacing between that location and the gearbox.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.