Dust collection apparatus for demolition tool

Abstract

A dust collection device for attaching to a demolition tool includes a hollow first body, a hollow second body, and a suction tube. The hollow first body can be configured to connect with an associated demolition tool. The hollow second body can connect with the first body and the two bodies can cooperate to define an internal space. The second body can be at least one of (i) selectively removable from and reattachable to the first body at or adjacent a distal end of the first body without damaging the first body or the second body and (ii) rotatable with respect to the first body. The suction tube can connect to at least one of the first body and the second body. The suction tube can define a passage in fluid communication with the internal space.

1 . A dust collection device for attaching to a demolition tool, the device comprising:
 a hollow first body being configured to connect with the associated demolition tool;   a hollow second body connected with the first body, the two bodies cooperating to define an internal space, the second body being at least one of (i) selectively removable from and reattachable to the first body at or adjacent a distal end of the first body without damaging the first body or the second body and (ii) rotatable with respect to the first body; and   a suction tube connected to at least one of the first body and the second body, the suction tube defining a passage in fluid communication the internal space.   
   
   
       2 . The device of  claim 1 , wherein the second body is rotatable with respect to the first body and the suction tube is joined to the second body. 
   
   
       3 . The device of  claim 2 , further comprising a third body, wherein the third body is selectively removable from and reattachable to the second body at or adjacent a distal end of the second body without damaging the second body or the third body. 
   
   
       4 . The device of  claim 1 , wherein the second body is selectively removable from and reattachable to the first body at or adjacent a distal end of the first body without damaging the first body or the second body, and the second body is more flexible than the first body. 
   
   
       5 . The device of  claim 4 , wherein the second body includes a flange and the first body includes a ridge, the flange engaging the ridge to selectively attach the first body to the second body. 
   
   
       6 . The device of  claim 1 , wherein the first body includes a section adjacent a proximal end for receiving the associated demolition tool. 
   
   
       7 . The device of  claim 6 , further comprising an insert received in the section adjacent the proximal end of the first body, the insert including an opening for receiving the associated demolition tool. 
   
   
       8 . In combination:
 a demolition tool including a housing and a movable working bit connected with a locking sleeve, the working bit being selectively removable from the locking sleeve for replacement thereof; and   a dust collection guard mounted to the housing of the demolition tool for removing at least a portion of dust generated when the movable working bit works on a work surface, the guard comprising:
 a hollow first body connected to the housing of the demolition tool, 
 a hollow second body connected at or adjacent a distal end of the first body to define an internal space, the second body being either (i) selectively removable from and reattachable to the first body without damaging the first body or the second body or (ii) rotatable with respect to the first body, and 
 a suction tube connected to the first body or the second body and defining a passage in fluid communication with the internal space. 
   
   
   
       9 . The combination of  claim 8 , wherein the second body is selectively removable from and reattachable to the first body at or adjacent a distal end of the first body without damaging the first body or the second body and the locking sleeve of the demolition tool is accessible when the second body is removed from the first body while the first body is still attached to the demolition tool, such that the locking sleeve can be maneuvered to remove the bit from the demolition tool. 
   
   
       10 . The combination of  claim 8 , wherein the second body is (i) selectively removable from and reattachable to the first body without damaging the first body or the second body and (ii) rotatable with respect to the first body, and wherein the locking sleeve of the demolition tool is accessible when the second body is removed from the first body while the first body is still attached to the demolition tool, such that the locking sleeve can be maneuvered to remove the bit from the demolition tool. 
   
   
       11 . The combination of  claim 8 , wherein the second body is rotatable with respect to the first body, and the combination further comprising a third body connected with a distal end of the second body. 
   
   
       12 . The combination of  claim 8 , further comprising means for removing and attaching the second body to the first body. 
   
   
       13 . The combination of  claim 12 , wherein the means for removing and attaching comprises at least one of a clamp, a bayonet connection, a screw connection, a latch, and a friction fit. 
   
   
       14 . The combination of  claim 8 , wherein the means for removing and attaching comprises a connection that is made without the use of hand tools. 
   
   
       15 . A dust collection guard comprising:
 a hollow first body configured to attach to an associated demolition tool;   a hollow second body rotatably connected to the first body at or adjacent a distal end of the first body, the first body and the second body together defining an enclosed space, wherein the second body is rotatable with respect to the first body about an axis; and   a suction tube connected with the second body, the suction tube defining a passage in fluid communication with the enclosed space.   
   
   
       16 . The guard of  claim 15 , wherein the second body is selectively removable from and reattachable to the first body without damaging the first body or the second body. 
   
   
       17 . The guard of  claim 15 , wherein the second body defines an inlet opening at a distal end and a suction opening leading from the enclosed space to the passage, and the suction tube connects with an associated vacuum source, the suction tube having a mass which results in the second body rotating with respect to the first body as the associated demolition tool is moved. 
   
   
       18 . The guard of  claim 15 , further comprising a third hollow body connected to a proximal end of the second body. 
   
   
       19 . The guard of  claim 18 , wherein the third hollow body is more flexible than the second hollow body. 
   
   
       20 . The guard of  claim 15 , further comprising an adapter connected at a proximal end of the first body, the adapter including a body having an opening for accommodating a housing of the associated demolition tool.