US Patent 9993928 Cutting assembly for a hair clipping device

The present invention relates to a cutting assembly (10) for a hair clipping device (100), comprising: —a stationary cutting blade (12) having a first cutting edge (20), and a moveable cutting blade (14) that is resiliently biased against the stationary cutting blade (12) and has a second cutting edge (22) that is arranged parallel to the first cutting edge (20), wherein one of the cutting blades (12, 14) comprises at least one slot (42, 42′) for compensating a stress-induced warpage within said cutting blade (12, 14), wherein said at least one slot (42, 42′) extends substantially parallel to the two cutting edges (20, 22).