Patent ID: 9466955
Filing Date: 2016-10-11
CPC Classification: H01H,H02B

Claim Text:
1. A knife switch comprising a hinged contact knife, moveable between at least two positions, and a first electric contact element, said contact knife being made of an electrically conductive material and being electrically connectable at a first end to a first electric conductor, said first electric contact element being made of an electrically conductive material, and further comprising an operator device for moving said contact knife between the at least two positions, of which a first position is an open position in which a second free end of the contact knife is disconnected from any electrical contact, and a second position is a first contact position in which the second free end of the contact knife is in electrical contact with the first electric contact element, characterized in that the second free end of the contact knife comprises two knife blades adjacent to each other and that each knife blade is provided with a dynamic electric field control device comprising an electrically conductive element, and that the electrically conductive element has an at least partly spherical shape.