Patent · US Expired

Operating device for manual actuation of hoisting equipment

US6972385B2 · kind B2 · utility

10Cited by

3References

31Claims

0Family size

Assignee

Demag Cranes & Components GmbH · DE

Inventors

Wolfgang Krebs · Wetter, DE
Holger Freitag · Bochum, DE
Anton Munzebrock · Dortmund, DE
Burkhard Hasenack · Hagen, DE
Giuliano Persico · Wetter, DE
Erik Appel · Wetter, DE
Stefan Elspass · Tönisvorst, DE

Key dates

Filing date	Jul 9, 2004
Grant date	Dec 6, 2005
Priority date	—
Expiry date	Aug 3, 2024

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2235/03
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An operating device for the manual actuation of hoisting equipment, with at least one spring-loaded switch element (2) for each direction of movement of the lifting device arranged in a switch housing (1), wherein each switch element (2) includes a pressure activation mechanism (5), a first electrical micro-key button (4), and at least one additional control or switch element, especially another electrical micro-key button (6), and the pressure activation mechanism (5) is arranged in front of the micro-key button (4) and the additional control or switch element and these can be activated in succession by means of such structure.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.