Vacuum cleaner having edge cleaning features

Claim 2

A vacuum cleaner having edge cleaning features, said vacuum cleaner comprising: a cleaner body having a surface contacting suction chamber, a suction duct leading from said chamber, and an edge auxiliary cleaning chamber at an end of said suction chamber communicating through a port with said suction duct; an internal valve movable between open and closed positions for controlling air flow both from said suction chamber and auxiliary cleaning chamber to said duct; means for limiting the movement of said valve to provide when said valve is in the open position maximum air flow through said auxiliary chamber for maximum edge cleaning and limited substantial air flow through said suction chamber for limited center cleaning, and provide when said valve is in the closed position no air flow through said auxiliary cleaning chamber and full air flow through said suction chamber for maximum center cleaning; and operating means accessible from the exterior of said cleaner for selectively moving said valve to said open and closed positions.

Claim 3

The vacuum cleaner of claim 1 wherein said valve when in said open position extends partway across said duct.

Claim 4

The vacuum cleaner of claim 1 wherein said valve is a vane valve hingedly mounted to said body at one edge of said suction chamber.

Claim 5

The vacuum cleaner of claim 1 wherein said operating means comprises a slidable knob exteriorly of said cleaner body and a slidable link interconnecting said knob and said valve.

Claim 6

The vacuum cleaner of claim 1 wherein said valve is a vane valve hingedly mounted to said body at one edge of said suction chamber, and said operating means comprises a slidable knob exteriorly of said cleaner, a flange plate connected to said valve, and a slidable link interconnecting said knob and said valve through said flange plate.

Claim 7

The vacuum cleaner of claim 5 wherein said flange plate is connected to said valve at substantially right angles thereto and has a slot engaged by a pin on said link for moving said valve arcuately when said link is moved longitudinally.

Claim 8

A vacuum cleaner having edge cleaning features, said vacuum cleaner comprising: a cleaner body having a surface contacting suction chamber and a suction duct leading from said chamber; a rotatably driven brush positioned in said suction chamber for agitating the surface to be cleaned; means defining an edge auxiliary cleaning chamber at an end of said suction chamber communicating through a port with said suction duct; an internal valve movable between open and closed positions for controlling flow both from said suction chamber and auxiliary cleaning chamber to said duct; means for limiting the movment of said valve to provide when said valve is in the open position maximum air flow through said auxiliary chamber for maximum edge cleaning and limited substantial air flow through said suction chamber for limited center cleaning, and provide when said valve is in the closed position no air flow through said auxiliary chamber and maximum air flow through said suction chamber for maximum center cleaning; and longitudinally movable operating means accessible from the exterior of said cleaner for selectively moving said valve to said open and closed positions.

Claim 9

A vacuum cleaner having edge cleaning features, said vacuum cleaner comprising: a cleaner body having a surface contacting suction chamber and a suction duct leading from said chamber; a rotatably driven brush positioned in said suction chamber for agitating the surface to be cleaned; means defining an edge auxiliary cleaning chamber at an end of said suction chamber communicating through a port with said suction duct; an internal valve movable between open and closed positions for controlling flow both from said suction chamber and auxiliary cleaning chamber to said duct; means for limiting the movment of said valve to provide when said valve is in the open position maximum air flow through said auxiliary chamber for maximum edge cleaning and limited substantial air flow through said suction chamber for limited center cleaning, and provide when said valve is in the closed position no air flow through said auxiliary chamber and maximum air flow through said suction chamber for maximum center cleaning; and longitudinally movable operating means accessible from the exterior of said cleaner for selectively moving said valve to said open and closed positions.

Claim 10

The vacuum cleaner of claim 7 wherein there is provided a flange plate connected to said valve and having a slot, a pin on said operating means received in said slot for pivoting said valve as an incident of said operating means being moved longitudinally.

Claim 11

The vacuum cleaner of claim 8 wherein said valve is mounted on a pivot carried by said body and said operating means pin is juxtaposed to said pivot when the valve is in the closed position.

Claim 12

The vacuum cleaner of claim 7 wherein said valve is arranged to maintain approximately one-half the flow path from said suction chamber to said duct in an unobstructed condition in said open position.