Abstract: Systems and methods for electric motor cooling. The cooling system, in one example, includes a sealing ring coupled to or formed in a stator and including a flange that axially extends outward from an axial side of the stator. The cooling system further includes a first sealing sleeve with a first sealing interface that is formed between the sealing sleeve and a motor housing and a second sealing interface that is formed between the sealing sleeve and the flange, where a cavity is formed between the sealing sleeve and the sealing ring in which a stator end winding is at least partially immersed in a coolant.

Abstract: The subject apparatus is an improved screw driver adapted to have an expanding head to adapt to different screw head types and sizes, such screw driver device apparatus comprising a hollow handle member affixed concentrically to a hollow shaft, with the hollow shaft member holding a plurality of movable rod members that are adapted to move axially and longitudinally, within a limited distance in such hollow shaft member towards the head of the screw driver to move the ends thereof into position on the head of the screw.