Husqvarna Ab

Hans Waigel

Pär Martinsson

Johan Svennung

Joachim Rief

Tobias Zeller

Peter Kohl

Ottmar Locher

Erik Felser

Peter Lameli

Christoph Schiedt

Martin Bepler

Axel Mock

Ram Krishna Agrawal

A battery pack may include a plurality of cells, a cell connector assembly, and a common output. The cell connector assembly may be disposed to contact at least selected ones of the plurality of cells to facilitate parallel connection of contacted cells. The common output may be electrically coupled to the cell connector assembly to receive a combined output from the plurality of cells. The cell connector assembly may include a plurality of metallic arms arranged in a hierarchical structure including at least two levels each having at least one arm, such that the cell connector assembly defines a plurality of current paths from each of the contacted cells to the combined output. The plurality of current paths are substantially equal to each other in length.

Electrically symmetrical battery cell connector

A self-powered chainsaw, typically a battery powered chainsaw, including a housing, a power source, an endless cutting chain having a plurality of cutting elements and a motor arranged to drive the chain relative to the housing using power from the power source. The chainsaw also includes a sharpening element which is arranged so as to be driven relative to the cutting elements and the housing using the power source.

Chainsaw with a sharpening element

Growing community of inventors

Schnürpflingen, Germany

Hans Waigel