Vacuum and combination vacuum/blow means

Claim 2

In an air gun converted to a suction cleaner and having an air inlet connected to a source of pressurized air and an air outlet and a trigger-actuated valve means therebetween, the improvement comprising: a tubular longitudinally-extending barrel mounted on the air gun and having an angular opening in the wall thereof coaxially aligned with the air outlet, a tubular flow interrupter sealingly-sleeved within the barrel and having an outer peripheral recess inboard of its opposite ends defining a sealed annular air space between the barrel and flow interrupter in communication with the barrel opening, a plurality of spaced circumferentially-arranged angularly inclined rearwardly directed flow reversal openings in the wall of the flow interrupter communicating between the air space and interior of the flow interrupter for bleeding pressurized air from the former to the latter while reversing the direction of flow thereof toward the rearward barrel extremity while generating a suction at the forward barrel extremity, a brush means fitted to the forward barrel extremity, and a collecting means fitted to the rearward barrel extremity.

Claim 3

In a suction cleaner including an air gun having an air inlet connectd to a source of pressurized air and an air outlet and a trigger-actuated valve means therebetween, the improvement comprising: a tubular longitudinally-extending barrel fixed to the air gun and having an opening in the wall thereof coaxially aligned with the air outlet, a tubular flow interrupter sealingly-sleeved within the barrel and having an outer peripheral recess inboard of its opposite ends defining a sealed annular air space between the barrel and flow interrupter in communication with the barrel opening, a plurality of spaced circumferentially-arranged angularly inclined rearwardly directed flow reversal openings in the wall of the flow interrupter communicating between the annular air space and the interior of the flow interrupter for bleeding pressurized air from the former to the latter while reversing the direction of flow thereof toward the rearward barrel extremity and while generating a suction at the forward barrel extremity and a collecting means fitted to the rearward barrel extremity.

Claim 4

In a suction cleaner including an air gun having an air inlet connectd to a source of pressurized air and an air outlet and a trigger-actuated valve means therebetween, the improvement comprising: a tubular longitudinally-extending barrel fixed to the air gun and having an opening in the wall thereof coaxially aligned with the air outlet, a tubular flow interrupter sealingly-sleeved within the barrel and having an outer peripheral recess inboard of its opposite ends defining a sealed annular air space between the barrel and flow interrupter in communication with the barrel opening, a plurality of spaced circumferentially-arranged angularly inclined rearwardly directed flow reversal openings in the wall of the flow interrupter communicating between the annular air space and the interior of the flow interrupter for bleeding pressurized air from the former to the latter while reversing the direction of flow thereof toward the rearward barrel extremity and while generating a suction at the forward barrel extremity and a collecting means fitted to the rearward barrel extremity.

Claim 5

In an air gun converted to a suction cleaner and having an air inlet connected to a source of pressurized air and an air outlet and a trigger actuated valve means therebetween, the improvement comprising: a tubular longitudinally extending barrel mounted on the air gun and having opposite forward and rearward extremities and an opening in the wall thereof coaxially aligned with the air outlet, a tubular flow interrupter sealingly sleeved within the barrel and having an outer peripheral recess inboard of its opposite ends defining a sealed annular air space in communication with the barrel opening, a plurality of spaced circumferentially-arranged angularly inclined rearwardly directed flow reversal openings extending through the wall of the flow interrupter and communicating between the air space and interior of the flow interrupter for bleeding pressurized air from the former to the latter while reversing the direction of flow thereof through the barrel and toward the rearward barrel extremity while generating a suction at the forward barrel extremity, a rotatable selector valve means receivable within the air gun and in communication with the trigger actuated valve means and being actuatable for closing off the air outlet, a tube having a forward nozzle end and being connectible at its opposite end of the selector valve means and extendable to a point of adjacency to the forward barrel extremity and serving as a passage for the pressurized air from the trigger actuating valve means to the forward nozzle end.

Claim 6

In an air gun converted to a suction cleaner and having an air inlet connected to a source of pressurized air and an air outlet and a trigger actuated valve means therebetween, the improvement comprising: a tubular longitudinally extending barrel mounted on the air gun and having opposite forward and rearward extremities and an opening in the wall thereof coaxially aligned with the air outlet, a tubular flow interrupter sealingly sleeved within the barrel and having an outer peripheral recess inboard of its opposite ends defining a sealed annular air space in communication with the barrel opening, a plurality of spaced circumferentially-arranged angularly inclined rearwardly directed flow reversal openings extending through the wall of the flow interrupter and communicating between the air space and interior of the flow interrupter for bleeding pressurized air from the former to the latter while reversing the direction of flow thereof through the barrel and toward the rearward barrel extremity while generating a suction at the forward barrel extremity, a rotatable selector valve means receivable within the air gun and in communication with the trigger actuated valve means and being actuatable for closing off the air outlet, a tube having a forward nozzle end and being connectible at its opposite end of the selector valve means and extendable to a point of adjacency to the forward barrel extremity and serving as a passage for the pressurized air from the trigger actuating valve means to the forward nozzle end.