Patent ID: 7328512

Claim:
A self-contained circular vacuum saw, comprising: (a) a body containing a motor having a drive shaft, said drive shaft connected to and rotatable for rotatably driving a circular cutting blade, and a lower platform having inner and outer sides pivotably connected to said body; (b) an upper blade housing surrounding the upper portion of said blade; (c) a lower bellows connected to and beneath said blade housing wherein said housing and said bellows create a blade chamber; (d) a vacuum impeller connected to said motor drive shaft so as to be rotatably drivable thereby; (e) a vacuum housing containing said impeller, said vacuum housing having a central portion disposed around said motor drive shaft and an outer peripheral portion disposed around said central portion; (f) a plurality of vacuum tubes connected between said blade housing and said central portion of said vacuum housing at spaced locations around the drive shaft; (g) a bag connected to said outer peripheral portion of said vacuum housing; wherein said lower bellows is divided into a front section and a rear section by a flexible separation wall, so as to define a front bellows chamber surrounding a lower portion of said blade, and a rear bellows chamber seperated from and rearwardly of said front bellows chamber, and wherein debris and dust produced by rotation of the cutting blade are vacuumed from the blade chamber into the vacuum housing and discharged into the bag by the rotation of the impeller.