Powered saw including dust capture apparatus

Abstract

A novel cutting method and apparatus includes a cutting blade adapted to consistently and easily form a desirable kerf in a concrete substrate while capturing substantially all resulting concrete dust.

1 . A vacuum manifold for sawdust capture comprising:
 a vacuum manifold body portion, said body portion having a curved cylindrical internal surface region defining a cavity about a longitudinal axis thereof, said body portion having a first external surface region at a first end thereof, said first external surface region being disposed generally transverse to said longitudinal axis, said body portion including a second generally planar internal surface region, said second generally planar internal surface region being disposed substantially normal to said longitudinal axis, and wherein said curved internal surface region defines a correspondingly curved internal edge region with said second generally planar internal surface region.   
     
     
         2 . A vacuum manifold for sawdust capture as defined in  claim 1  wherein said curved cylindrical internal surface region includes a generally circular cylindrical surface region. 
     
     
         3 . A vacuum manifold for sawdust capture as defined in  claim 1  wherein said correspondingly curved internal edge region includes a generally circular internal edge region. 
     
     
         4 . A vacuum manifold for sawdust capture as defined in  claim 1  wherein said curved cylindrical internal surface region includes a generally elliptical cylindrical internal surface region. 
     
     
         5 . A vacuum manifold for sawdust capture as defined in  claim 1  wherein said first external surface region includes a generally planar external surface region. 
     
     
         6 . A vacuum manifold for sawdust capture as defined in  claim 1  wherein a flange portion is disposed inwardly of said first external surface region. 
     
     
         7 . A vacuum manifold for sawdust capture as defined in  claim 6  wherein said flange portion is adapted to be coupled to a hose coupling portion. 
     
     
         8 . A vacuum manifold for sawdust capture as defined in  claim 7  wherein said flange portion includes at least one hole, said hole being adapted to receive a fastener for coupling said hose coupling portion to said first external surface region. 
     
     
         9 . A vacuum manifold for sawdust capture as defined in  claim 6  wherein said flange portion includes a further surface region, said further surface region being configured and adapted to be coupled to a housing of a saw. 
     
     
         10 . A vacuum manifold for sawdust capture as defined in  claim 6  wherein said flange portion includes an aperture therethrough, said aperture being adapted to allow passage of sawdust from said cavity to a vacuum hose. 
     
     
         11 . A vacuum manifold for sawdust capture as defined in  claim 10  wherein said aperture is generally circular in a plane normal to said longitudinal axis. 
     
     
         12 . A vacuum manifold for sawdust capture comprising:
 a vacuum manifold body portion, said body portion having a curved cylindrical internal surface region defining a cavity about a longitudinal axis thereof, said body portion having a first external surface region at a first end thereof, said first external surface region being disposed generally transverse to said longitudinal axis, said body portion including a second generally planar internal surface region, said second generally planar internal surface region being disposed substantially normal to said longitudinal axis, wherein said curved internal surface region defines a correspondingly curved internal edge region with said second generally planar internal surface region, said body portion including a third external surface region, said third external surface region being disposed normal to said first external surface region at a mutual edge thereof, said third external surface region having first, second and third internal edges, said first, second and third internal edges defining a generally rectangular aperture from said third external surface region into said cavity.   
     
     
         13 . A vacuum manifold for sawdust capture as defined in  claim 12  wherein said second internal edge is adapted to be disposed substantially perpendicular to a saw blade when said vacuum manifold is in use. 
     
     
         14 . A vacuum manifold for sawdust capture as defined in  claim 12  wherein said second internal edge is mutually disposed between said third external surface region and a forth internal surface region, said fourth internal surface region having a fifth internal edge region, said fifth internal edge region being mutually disposed between said fourth internal surface region and said generally curved cylindrical internal surface region. 
     
     
         15 . A vacuum manifold for sawdust capture as defined in  claim 12  wherein said curved cylindrical internal surface region includes a substantially circular cylindrical internal surface region. 
     
     
         16 . A vacuum manifold for sawdust capture as defined in  claim 12  wherein said first external surface region includes a generally planar external surface region. 
     
     
         17 . A vacuum manifold for sawdust capture as defined in  claim 12  wherein at least one of said first, second and third internal edge regions is substantially linear. 
     
     
         18 . A vacuum manifold for sawdust capture comprising:
 a vacuum manifold body portion, said body portion having a first generally cylindrical internal surface region defining a generally cylindrical cavity therein, said generally cylindrical cavity opening, at a first end, to an aperture in a second external surface of said body portion, said generally cylindrical cavity terminated at a second end by a third substantially planar internal surface region, said third substantially planar internal surface region being disposed substantially normal to a longitudinal axis of said generally cylindrical cavity, said body portion having a fourth generally planar external surface region disposed in substantially parallel spaced relation to said longitudinal axis, said third substantially planar internal surface region forming a substantially linear mutual edge with said fourth generally planar external surface region.   
     
     
         19 . A vacuum manifold for sawdust capture as defined in  claim 18  wherein said body portion further comprises a flange portion, said flange portion having a fifth substantially planar surface region disposed outwardly of and in substantially parallel spaced relation to said second external surface region of said body portion, and wherein said flange portion includes a sixth substantially planar surface region disposed outwardly and in substantially parallel spaced relation to said fifth substantially planar surface region. 
     
     
         20 . A vacuum manifold for sawdust capture as defined in  claim 19  wherein said sixth substantially planar surface region is adapted to be coupled to a vacuum apparatus so as to effect said sawdust capture.