Abstract: A device 10 and method for forming a non-tapered end 12 of a gypsum board 14 into a tapered configuration or portion 16 includes a rotary drive tool 18 that imparts rotary motion to a tool bit 20 removably secured thereto, a pair of oppositely disposed angle members 22 having cooperating base portions 24 configured to promote attaching a dust collection collar 17 to the base portions 24, the angle members 22 disposing and guiding the rotating tool bit 20 between outer paper walls 28 of a non-tapered end 12 of the gypsum board 14 to ultimately severe portions of gypsum from the non-tapered end 12 thereby forming a recess 32 without damaging the outer paper walls 28 of the gypsum board 14.

Abstract: A device 10 and method for forming a non-tapered end 12 of a gypsum board 14 into a tapered configuration 16 includes a rotary drive tool 18 that imparts rotary motion to a tool bit 20 removably secured thereto, a pair of oppositely disposed angle members 22 having cooperating base portions 24 configured to promote attaching a dust collection collar 17 to the base portions 24, the angle members 22 disposing and guiding the rotating tool bit 20 between outer paper walls 28 of a non-tapered end 12 of the gypsum board 14 to ultimately severe portions of gypsum from the non-tapered end 12 thereby forming a recess 32 without damaging the paper walls 28, the tool bit 20 removing the severed portions of gypsum from the recess 32 via a spiral channel 34 circumferentially disposed about the tool bit 20, and a vacuum system 36 that removes the severed portions of gypsum from the gypsum board 14 when the tool bit 20 “lifts” the severed portions form the recess 32 whereby the non-tapered end 12 is forcibly bent to form a

Abstract: A flexible blade seal for a window assembly has an elongate body of substantially uniform cross-section formed of flexible elastomeric material. As viewed in cross-section, the blade seal has a seal segment forming an exposed, substantially planar sealing surface for contact with a surface of a windowpane, e.g., a sliding pane of the window assembly. In its free state the sealing surface is presented at an angle to the surface of the sliding pane, extending from a free end to a substantially flat end wall. A lateral segment of the blade seal extends from the end wall at an acute angle to the seal segment to an angled junction with a base segment. The base segment extends to a free distal portion adapted for attachment to the window assembly for mounting the blade seal. The flat end wall of the blade seal is generally perpendicular to the plane of the window opening and provides an abutting surface for surface-to-surface contact with another blade seal or other sealing member.