Safety configuration for an apparatus that can be moved over a surface
US6691811B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2002 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | Jun 7, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S180/901
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An apparatus that attaches itself to a surface by negative pressure and that can move over the surface, in particular, for carrying out work, to prevent a risk, depending on the alignment of the surface, of the apparatus dropping downward if there is a decrease in an attachment force in the case of malfunctioning includes a safety configuration that monitors detachment of the apparatus from the surface and, in such a case, attaches a retaining configuration, preferably in the form of a suction cup, to the surface, the retaining configuration retaining the movable apparatus on the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.