The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 06, 2005
Filed:
Jul. 09, 2004
Wolfgang Krebs, Wetter, DE;
Holger Freitag, Bochum, DE;
Anton Münzebrock, Dortmund, DE;
Burkhard Hasenack, Hagen, DE;
Giuliano Persico, Wetter, DE;
Erik Appel, Wetter, DE;
Stefan Elspass, Tönisvorst, DE;
Wolfgang Krebs, Wetter, DE;
Holger Freitag, Bochum, DE;
Anton Münzebrock, Dortmund, DE;
Burkhard Hasenack, Hagen, DE;
Giuliano Persico, Wetter, DE;
Erik Appel, Wetter, DE;
Stefan Elspass, Tönisvorst, DE;
Demag Cranes & Components GmbH, Wetter, DE;
Abstract
An operating device for the manual actuation of hoisting equipment, with at least one spring-loaded switch element () for each direction of movement of the lifting device arranged in a switch housing (), wherein each switch element () includes a pressure activation mechanism (), a first electrical micro-key button (), and at least one additional control or switch element, especially another electrical micro-key button (), and the pressure activation mechanism () is arranged in front of the micro-key button () and the additional control or switch element and these can be activated in succession by means of such structure.