Patent ID: 7044043

Claim:
An apparatus for sizing window coverings, and the apparatus comprising: a frame having a top and a control panel; a control box mounted in the frame and electrically connected to the control panel; an actuator mounted in the frame and electrically connected to the control box; a sizing device assembled on the top of the frame and comprising a cutting block fastened vertically on the top of the frame and comprising a working block fastened vertically on the top of the frame and having a front, a rear, a row of upper slots and a row of lower slots, the row of upper slots and the row of lower slots defined through the front to the rear and respectively comprising a head rail slot, a center window and a bottom rail slot that are horizontally arranged relative to the top of the frame; a cutting rail assembly mounted on the top of the frame at the rear of the working block and comprising a supporting rail mounted at the rear of the working block and having a horizontal top; and multiple stacks demountably mounted on the top of the supporting rail, each of the stacks comprising an upper guiding block and a lower guiding block, each of the guiding blocks having multiple transverse passages, and the transverse passages of the lower guiding blocks respectively aligned with the head rail slot, the center window and the bottom rail slot of the row of lower slots in the working block and the transverse passages of the upper guiding blocks respectively aligned with the head rail slot, the center window and the bottom rail slot of the row of upper slots in the working block; a horizontal cutter assembly mounted on the top of the frame and comprising two horizontal cutting blades actuated by the actuator and aligned respectively with the center windows; and a vertical cutter assembly vertically mounted in the top of the frame and comprising two vertical cutting blades actuated by the actuator and respectively aligned with the head rail slots and the bottom rail slots.