Electrostatic precipitator rapping mechanism
US4221573A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 6, 1979 |
| Grant date | Sep 9, 1980 |
| Priority date | — |
| Expiry date | Mar 6, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03C3/761
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An electrostatic precipitator rapping system of the type which lifts weights and then allows the weights to fall to impact on precipitator elements to impart particulate-dislodging vibration thereto. The system includes a rotating drive shaft and a plurality of individual rapping mechanisms disposed along the drive shaft. Each rapping mechanism includes a driving assembly affixed to the drive shaft and a driven assembly mounted for pivotal movement. A means attached to the driven assembly lifts a weight as the driven assembly pivots in one direction towards a release position and allows the weight to fall to impact as the driven assembly pivots in the other direction towards a resting position. For pivoting and releasing the driven assembly, the driving assembly carries a first engagement member radially spaced from a first axis defined by the drive shaft, the pivotal mounting of the driven assembly in on a second axis offset from the first axis, and the driven assembly carries a second engagement member radially spaced from the second axis for engagement by the first engagement member. The radial spacing of the first engagement member is greater than the distance between the axes …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.