Apparatus for cleaning chimneys
US4594745A · kind A · utility
Inventor
Key dates
| Filing date | Jan 22, 1985 |
| Grant date | Jun 17, 1986 |
| Priority date | — |
| Expiry date | Jan 22, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23J3/026
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
This invention relates to the cleaning of chimneys such as those of wood burning fireplaces. An electric motor is supported from a frame. In one mode of operation, the frame is supported in a chimney by a long rod which is along the line of the axis of the shaft of the motor. A plurality of fixed chain links are welded to the plate on the shaft. Each fixed link has a second chain link attached thereto in the normal chain articulation manner. Each second link has a ball welded at the outer end. As the motor turns, the steel balls strike the build-up of deposits on the chimney walls and quickly cleans it as the device is raised and lowered by an operator using the long rod. The frame is also such that it can be turned sideways so that the shaft is horizontal. This is helpful in getting certain corners in certain type chimneys.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.