Patent · US Expired

Safety configuration for an apparatus that can be moved over a surface

US6691811B2 · kind B2 · utility

23Cited by
7References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 7, 2002
Grant dateFeb 17, 2004
Priority date
Expiry dateJun 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.