A - Human Necessities – 47 – L
Patent
A - Human Necessities
47
L
A47L 5/24 (2006.01) A47L 5/14 (2006.01) A47L 7/04 (2006.01) A47L 9/00 (2006.01) A47L 9/02 (2006.01) A47L 9/19 (2006.01) A47L 9/24 (2006.01)
Patent
CA 2459028
A hand-held portable vacuum having a filter indicator that is coupled to an outlet housing and in fluid communication with a portion of the outlet housing between a fan inlet and an intake. The filter indicator includes a pressure differential indicator that is configured to indicate a pressure differential between air in the portion of the outlet housing and atmospheric air pressure. The filter indicator is employed to indicate to the user of the hand-held vacuum that replacement and/or cleaning of the filter is required.
Hunter Murray D.
Makeev Olga
Martin Carolyn
Mooney Patrick W.
Prosper Jacob R.
Black & Decker Inc.
Gowling Lafleur Henderson Llp
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