Vacuum cleaner filter bag condition indicator

Details Vacuum cleaner filter bag condition indicator Vacuum cleaner filter bag condition indicator

G - Physics

01

L

116/67.5

G01L 13/00 (2006.01) A47L 9/19 (2006.01)

Patent

CA 1063886

VACUUM CLEANER FILTER BAG CONDITION INDICATOR ABSTRACT OF THE DISCLOSURE A vacuum cleaner filter bag condition indicator that detects when the bag is substantially full and should be replaced. The indicator includes a pressure responsive member having internal filter bag pressure applied to a small area of one side thereof and filter bag compartment pressure applied to the entire other side. When the bag becomes substantially full the bag pressure increases and the increased pressure differential causes the pressure responsive member to move slightly to allow the filter bag pressure to act on the entire area of the one side. The pressure responsive means thereafter quickly moves toward the lower pressure side and forces an indicator button out the cleaner.

258871

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