Hand vacuum with filter indicator

Abstract

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. The vacuum may also be used in a blower mode with a set of inflator nozzles to permit a user to inflate an article.

1 . A hand-held portable vacuum comprising:
 an inlet housing defining an inlet that is configured to receive dirt, dust and debris therethrough;   an outlet housing releasably coupled to the inlet housing, the outlet housing defining a handle, an intake, a fan mount and an outlet, the handle being configured to be grasped by a single hand of a user to permit the user to maneuver the hand-held portable vacuum and orient the inlet into a desired position, the fan mount being disposed between the intake and the outlet;   a fan assembly mounted in the fan mount and housed by the outlet housing, the fan assembly having a fan inlet and being operable for generating an air flow therethrough;   a filter disposed between the inlet and the intake and being releasably coupled to one of the inlet housing and the outlet housing; and   a filter indicator coupled to the outlet housing and being in fluid communication with a portion of the outlet housing between the fan inlet and the intake, the filter indicator including 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.   
   
   
       2 . The hand-held portable vacuum of  claim 1 , wherein an indicator recess is formed in the outlet housing, the indicator recess being configured to receive the filter indicator therein. 
   
   
       3 . The hand-held portable vacuum of  claim 2 , wherein a flow aperture is formed through the outlet housing at a point within the indicator recess, the flow aperture facilitating fluid connection between the filter indicator and the fan inlet through the outlet housing. 
   
   
       4 . The hand-held portable vacuum of  claim 2 , wherein a mounting aperture is formed through the outlet housing, the mounting aperture being configured to receive therethrough a bayonet leg that secures the filter indicator to the outlet housing. 
   
   
       5 . The hand-held portable vacuum of  claim 4 , wherein the mounting aperture is formed through the indicator recess. 
   
   
       6 . The hand-held portable vacuum of  claim 2 , wherein the indicator recess includes a gasket flange, and wherein a gasket seals an interface between the filter indicator and the gasket flange. 
   
   
       7 . The hand-held portable vacuum of  claim 1 , wherein the outlet housing comprises a pair of housing shells. 
   
   
       8 . The hand-held portable vacuum of  claim 7 , wherein each housing shell includes a circumferentially extending rib that defines at least a portion of the fan mount. 
   
   
       9 . The hand-held portable vacuum of  claim 8 , further comprising a resilient seal that forms a seal between the fan assembly and the fan mount. 
   
   
       10 . The hand-held portable vacuum of  claim 1 , wherein the inlet housing defines a dirt cup. 
   
   
       11 . The hand-held portable vacuum of  claim 1 , wherein the fan assembly includes a power cord that is adapted to be coupled to an alternating current power source. 
   
   
       12 . A bag-less, hand-held portable vacuum comprising:
 a dirt cup having an inlet that is configured to receive dirt, dust and debris therethrough; and   a housing assembly having a housing, a fan assembly and a filter indicator, the housing being releasably coupled to the dirt cup and including a handle and an intake, the handle being configured to be grasped by a single hand of a user to permit the user to maneuver the hand-held portable vacuum and orient the inlet into a desired position, the fan assembly being mounted in the housing and having a fan inlet, the filter indicator being coupled to the housing and in fluid communication with a portion of the housing between the fan inlet and the intake, the filter indicator being responsive to an air pressure in the portion of the housing and providing at least one of a visual and an audible alarm when the air pressure reaches a predetermined threshold.   
   
   
       13 . The bag-less, hand-held portable vacuum of  claim 12 , wherein a indicator recess is formed in the housing, the indicator recess being configured to receive the filter indicator therein. 
   
   
       14 . The bag-less, hand-held portable vacuum of  claim 13 , wherein a flow aperture is formed through the outlet housing at a point within the indicator recess, the flow aperture facilitating fluid connection between the filter indicator and the fan inlet through the outlet housing. 
   
   
       15 . The bag-less, hand-held portable vacuum of  claim 13 , wherein a mounting aperture is formed through the outlet housing, the mounting aperture being configured to receive therethrough a bayonet leg that secures the filter indicator to the outlet housing. 
   
   
       16 . The bag-less, hand-held portable vacuum of  claim 15 , wherein the mounting aperture is formed through the indicator recess. 
   
   
       17 . The bag-less, hand-held portable vacuum of  claim 12 , wherein the housing comprises a pair of housing shells. 
   
   
       18 . The bag-less, hand-held portable vacuum of  claim 12 , wherein the fan assembly includes a power cord that is adapted to be coupled to an alternating current power source. 
   
   
       19 . A portable vacuum comprising:
 an inlet housing defining an inlet that is configured to receive dirt, dust and debris therethrough;   an outlet housing releasably coupled to the inlet housing, the outlet housing defining a handle, an intake, and an exhaust outlet;   a tubular extension; and   an adaptor for selectively coupling the hose to the exhaust outlet, the adaptor including a first coupling portion, a second coupling portion, and a deflectable portion that is disposed between the first and second coupling portions, the first coupling portion having an outer perimeter that is sized to be received into the exhaust outlet, the second coupling portion being configured to engage a first end of the tubular extension, the deflectable portion in response to the application of a force to the adaptor that exceeds a predetermined force;   wherein the adaptor is sufficiently rigid to support the tubular extension without deflection.