Patent ID: 6678960
Filing Date: 2004-01-20
Classification: B27B

Abstract:
An undercut saw having a central axis; said saw comprising:a cutting assembly comprising: a motor assembly including: a case including: an outer side; and a motor mounted within said case and rotatable about the central axis; a thin, planar cutting blade attached to said motor so as to rotate about the central axis and extending radially outward past said motor case and terminating radially in a circumferential cutting edge; and a base for supporting said cutting assembly above a support surface such that the central axis is normal to the support surface; said base comprising: a blade shroud including: an inner end supporting said case; an outer end for resting on the support surface; said base extending radially outward from said inner end and having a periphery past the blade circumference such so as to cover the majority of said blade so as to define a blade cavity and an exposed cutting area; said exposed cutting area having a first end where said cutting edge of said blade exits said cavity and a second end where said cutting edge enters said cavity; and a blade guard assembly including: a blade guard rotatably mounted to said base and rotatable between a retracted position adjacent said shroud and exposing said blade and an extended position covering the cutting area of said blade so as to include the cutting area in the blade cavity; and scaling means between said guard and said base for preventing air passage therebetween, and a vacuum passage in said base in fluid communication with the blade cavity and adapted for attachment to a vacuum device for vacuuming blade cuttings from said blade cavity; wherein said case and said base include: cooperative height adjustment means for selectively moving said case vertically within said base so as to adjust the height of said blade relative to the support surface.