Daimler Ag

Brueggli

Tribecraft Ag

Uwe Werner

Matthias Guenthart

Holger Stark

Joerg Evertz

Simon Hasenfratz

Ulf-Michael Mex

An apparatus for mowing grass. The apparatus has a plurality of cutting devices for mowing the grass. The apparatus has a plurality of carrying arms which are arranged offset with respect to one another with regard to the transverse axis of the apparatus, and are supported such that they can be pivoted up and down in each case individually, and carry in each case one of the plurality of cutting devices. The apparatus has a plurality of supporting elements which support in each case one of the plurality of carrying arms on an underlying surface, and are arranged in front of the respective cutting device with regard to a forward moving direction of the apparatus. The apparatus can have the advantage that the leading supporting elements do not push any cuttings in front of them, and a risk of the apparatus being jacked up is decreased.

Apparatus including an autonomous robot apparatus for mowing grass

A fuel cell stack includes a plurality of stacked fuel cell units and at least one stack end element that are clamped a clamping device. The clamped fuel cell units are surrounded by a housing. A circumferential seal, in particular a lip seal, which has recesses for accommodating the clamping device is situated between the housing and the at least one stack end element. The clamping device is electrically insulated at least in the area of the recesses.

Fuel cell stack

The inventive end plate comprises pressure shield () and a supporting plate (), whereby the forces, which serve to compress the stack () of fuel cells () and which are introduced via the force introduction locations (), are introduced into the stack in the form of a compressive load in a defined and uniform manner.

End plate for a stack of fuel cells

Growing community of inventors

Huetten, Switzerland

Uwe Werner