Patent ID: 8814555
Filing Date: 2014-08-26
Classification: E04F

Abstract:
1. A drywall tapering device, comprising: a frame, the frame having a slot, a front face, a rear face, and a top; a drive roller extending from the front face of the frame, the drive roller slidably mounted within the slot of the frame for selectively positioning the drive roller along the slot, the drive roller having a base and a free end, the drive roller having an annular groove defined around the base and adapted for receiving a lip of a track to guide the frame, the drive roller having a shape that tapers in diameter from wide to narrow as the drive roller extends from its base to its free end, the drive roller having a mandrel to drive the frame along the track and move the drive roller; a plurality of idler rollers, the plurality of idler rollers extending from the front face of the frame forming a generally triangular configuration with the drive roller, the plurality of idler rollers adapted for positioning along an underside of the track movable in conjunction with the drive roller; and a spring-biased adjustment screw assembly, the spring-biased adjustment screw assembly positioned in conjunction with the frame and in communication with the drive roller to clamp the drive roller against a butt end of a sheet of drywall with the lip of the track engaging the annular groove.