Patent ID: 6918209

Claim:
A window regulator for operating a window pane of an automotive vehicle comprising: a base plate; a lifter plate slidably coupled to said base plate for supporting the window pane; a motor assembly secured to said base plate, said motor assembly including a drive housing and a power motor; a drive shaft rotatably driven by said power motor, said drive shaft including a center shaft and a key shaft spaced therefrom; a pair of cable drums received on said center shaft, each of said cable drums including a key slot aligning with and receiving said key shaft therethrough; a cable having a first end connected to one of said cable drums and at least partially wound around said one of said cable drums in a first direction and a second end connected to said other of said cable drums and at least partially wound around said other drum in a second direction opposite said first direction, said lifter plate secured to said cable between said first and second ends; and at least one spring engaging said key shaft and said one of said drums to bias said one of mounted between said key shaft and one of said drums for said drums in a direction and maintain tension on said cable between said first and second ends.