Remote-controlled system for treating external surfaces of buildings
US5240503A · kind A · utility
Inventors
Key dates
| Filing date | Apr 27, 1992 |
| Grant date | Aug 31, 1993 |
| Priority date | — |
| Expiry date | Apr 27, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G23/002
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system for treating a surface, such as the outside surfaces of a tall building which can be operated remotely without the need to place a worker in close proximity of the surface to be treated. The system includes a vertical supporting column onto which is mounted a treatment unit. The treatment unit can carry out washing, painting, sandblasting, and similar operations and includes mechanisms for allowing the working head of the unit to be angles with respect to, as well as to move parallel to and perpendicular to, the surface being treated. In another embodiment, a window cleaning unit is suspended from the roof and is allowed to descent while cleaning the exterior surfaces of the windows.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.