Vacuum cleaner with operating condition indicator system

A pressure responsive monitoring system for a vacuum cleaner comprising

• first mounting means for mounting a dust collection bag in said vacuum cleaner, said first mounting means being pivotally mounted to said vacuum cleaner and adapted to be selectively placed in an operative position,
• passageway means extending through said bag mount means for enabling debris to pass through said bag mount means and into said dust collection bag,
• air passage means having an inlet at said passageway means and an outlet,
• pressure responsive means for monitoring the pressure at said passageway means and
• second mounting means for mounting said pressure responsive means in said vacuum cleaner, said second mounting means including a second air passage in communication with said outlet when said first mounting means is in said operative position.

A vacuum cleaner comprising

• a canister unit having an air intake,
• a wand and hose assembly having a first end and a second end, said first end adapted to be received in said air intake,
• a floor cleaning unit adapted to receive said second end,
• a dust collecting compartment in said canister unit,
• a dust bag in said dust collecting compartment in pneumatic communication with said air intake,
• said canister unit including an air discharge and suction means, said suction means adapted to cause air to flow from said wand and hose assembly into said canister unit through said air intake, through said dust bag and out of said canister unit through said air discharge, and
• an operating condition indicating system including
• a first pressure actuated switch means responsive to the existence of a first pressure differential between said air intake and said dust collecting compartment of at least a first magnitude for providing a first sensing signal,
• a second pressure actuated switch means responsive to the existence of a second pressure differential between said air discharge and said dust collecting compartment of at least a second magnitude for providing a second sensing signal and
• signal response means for responding to said first and second sensing signals and for providing sensorially perceptible indicating signals to an operator of said vacuum cleaner.