Patent · US Active

Operating device for manually actuating lifting devices

US8575503B2 · kind B2 · utility

1Cited by

5References

27Claims

0Family size

Assignee

Demag Cranes & Components GmbH · DE

Inventors

Wolfgang Krebs · Wetter, DE
Thomas Bönker · Unna, DE
Giuliano Persico · Wetter, DE
Klaus-Dieter Oemus · Hemer, DE
Stefan Elspass · Tönisvorst, DE
Anton Munzebrock · Dortmund, DE
Udo Gersemsky · Herdecke, DE

Key dates

Filing date	Nov 9, 2009
Grant date	Nov 5, 2013
Priority date	—
Expiry date	Jun 27, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2009/048
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An operating device is provided for manually actuating lifting devices. The device includes at least one switching element arranged in a switch housing, wherein the switching element includes a tappet, which protrudes from the switch housing. The tappet is guided in a sleeve and is covered by a covering element having a threaded ring. The sleeve protrudes outside through an opening in the switch housing, and is held in the switch housing through a threaded joint. The covering element is screwed to the sleeve in a detachable manner through the threaded ring of the covering element. Optionally, a tool is provided for installing the covering element.

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