Venturi-type suction device and methods thereof

Abstract

A spray and suction system including a housing including compressed fluid therein, a valve for releasing the compressed fluid within the housing, a trigger for actuating the valve, and a passageway fluidly connected to the housing such that the compressed fluid within the passageway enters the passageway when the trigger actuates the valve. The passageway including a first and a second end. A collection housing is located at the first end of the passageway. A switch interacts with the passageway, the switch having a first position and a second position. The switch provides for the compressed fluid within the housing to be forced out of the second end of the passageway or forced toward the first end of the passageway to provide for suction within the passageway to force air into the second end of the passageway toward the first end of the passageway and into the collection housing.

What is claimed is: 
     
         1 . A spray and suction system comprising:
 a housing including compressed fluid therein;   a valve for releasing the compressed fluid within the housing;   a trigger for actuating the valve;   a passageway fluidly connected to the housing such that the compressed fluid within the passageway enters the passageway when the trigger actuates the valve, the passageway including a first and a second end;   a collection housing located at the first end of the passageway; and   a switch interacting with the passageway, the switch having a first position and a second position;   when the switch is in the first position, the compressed fluid within the housing is forced out of the second end of the passageway to provide for spraying of the compressed fluid; and   when the switch is in the second position, the compressed fluid within the housing is forced toward the first end of the passageway to provide for suction within the passageway to force air into the second end of the passageway toward the first end of the passageway and into the collection housing.   
     
     
         2 . The spray and suction system of  claim 1 , wherein:
 the switch moves laterally.   
     
     
         3 . The spray and suction system of  claim 1 , wherein:
 the passageway includes a blowing passage and a venturi passage.   
     
     
         4 . The spray and suction system of  claim 3 , wherein:
 the switch comprises a sliding bar including a first hole such that, when the switch is in the first position, the pressurized fluid within the housing moves through the first hole and to the blowing passage.   
     
     
         5 . The spray and suction system of  claim 4 , wherein:
 the sliding bar includes a second hole such that, when the switch is in the second position, the pressurized fluid within the housing moves through the second hole and to the venturi passage.   
     
     
         6 . The spray and suction system of  claim 5 , wherein:
 axes of the first hole and the second hole are perpendicular to a direction of movement of the bar.   
     
     
         7 . The spray and suction system of  claim 3 , wherein:
 the passageway further includes a suction passage that meets with the venturi passage, the venturi passage providing a suction force to the air in the suction passage.   
     
     
         8 . The spray and suction system of  claim 1 , wherein:
 the pressurize fluid is connected to a lateral release passage of the passageway;   the switch comprises a sliding bar including a first path such that, when the switch is in the first position, the pressurized fluid within the housing moves through the lateral release passage and the first path;   the sliding bar includes a second path such that, when the switch is in the second position, the pressurized fluid within the housing moves through the lateral release passage and the second path.   
     
     
         9 . The spray and suction system of  claim 8 , wherein:
 when the switch is in the second position, the pressurized fluid within the housing moves through the second path and to a venturi passage of the passageway.   
     
     
         10 . The spray and suction system of  claim 9 , wherein:
 at least one of the first path and the second path have at least one turn.   
     
     
         11 . The spray and suction system of  claim 9 , wherein:
 the passageway further includes a suction passage that meets with the venturi passage, the venturi passage providing a suction force to the air in the suction passage.   
     
     
         12 . A method of using a spray and suction system, the method comprising:
 providing compressed fluid within a housing;   releasing the compressed fluid within the housing by actuating a trigger to force the compressed fluid to enter a passageway;   moving a switch to a first position to force the compressed fluid within the housing out of a second end of a passageway to spray the compressed fluid; and   moving a switch to a second position to force the compressed fluid toward a first end of the passageway to provide for suction within the passageway to force air into the second end of the passageway toward the first end of the passageway and into a collection housing located at the first end of the passageway.   
     
     
         13 . The method of  claim 12 , further including:
 moving the switch laterally.   
     
     
         14 . The method of  claim 12 , wherein:
 the passageway includes a blowing passage and a venturi passage.   
     
     
         15 . The method of  claim 14 , wherein:
 the switch comprises a sliding bar including a first hole such that, when the switch is in the first position, the pressurized fluid within the housing moves through the first hole and to the blowing passage; and   the sliding bar includes a second hole such that, when the switch is in the second position, the pressurized fluid within the housing moves through the second hole and to the venturi passage.   
     
     
         16 . The method of  claim 12 , wherein:
 the passageway further includes a suction passage that meets with the venturi passage, the venturi passage providing a suction force to the air in the suction passage.   
     
     
         17 . The method of  claim 12 , wherein:
 the pressurize fluid is connected to a lateral release passage of the passageway;   the switch comprises a sliding bar including a first path such that, when the switch is in the first position, the pressurized fluid within the housing moves through the lateral release passage and the first path;   the sliding bar includes a second path such that, when the switch is in the second position, the pressurized fluid within the housing moves through the lateral release passage and the second path.   
     
     
         18 . The method of  claim 17 , wherein:
 when the switch is in the second position, the pressurized fluid within the housing moves through the second path and to a venturi passage of the passageway.   
     
     
         19 . The method of  claim 18 , wherein:
 at least one of the first path and the second path have at least one turn.   
     
     
         20 . The method of  claim 18 , wherein:
 the passageway further includes a suction passage that meets with the venturi passage, the venturi passage providing a suction force to the air in the suction passage.