Portable hand-held battery-operated dust blower

Abstract

A hand-held, battery-operated air blower is disclosed having a housing with a handle portion, a discharge end, an air inlet, and a discharge aperture. A battery compartment is provided in the handle portion of the housing to contain one or more batteries. The battery compartment is electrically connected to a motor disposed within the housing between the battery compartment and the discharge aperture, transverse to the longitudinal axis of the housing. A centrifugal fan is mounted on the motor and positioned within the housing adjacent the air inlet in such a manner that operation of the fan draws air in through the air inlet and forces it out from the fan toward the discharge aperture then out through the discharge aperture. An actuator is provided for switching the flow of electricity from the batteries to turn the motor on and off.

1 - 24 . (canceled)  
   
   
       25 . A hand-held blower comprising: 
 (a) a housing having a handle portion and a discharge end, wherein the discharge end includes a fan, an air inlet, and a discharge aperture;    (b) a battery compartment within the handle portion of said housing for holding one or more batteries;    (c) a motor disposed within said housing between said battery compartment and the discharge aperture, wherein said battery compartment is adjacent to and electrically coupled to the motor in order to energize the motor when one or more batteries are installed in said battery compartment;    (d) a centrifugal fan mounted on said motor within said housing and adjacent the air inlet and driven by said motor for directing air from the inlet through the discharge aperture; and    (e) switching means to turn said blower on and off.    
   
   
       26 . The hand-held blower as set forth in  claim 25 , wherein said motor is disposed transverse to the longitudinal axis of said housing and said fan discharges pressurized air directly into said discharge aperture when rotating.  
   
   
       27 . The hand-held blower as set forth in  claim 25 , wherein said discharge aperture includes a tapered nozzle for direction of stream of pressurized air.  
   
   
       28 . The hand-held blower as set forth in  claim 25 , wherein said discharge aperture is elliptical.  
   
   
       29 . The hand-held blower as set forth in  claim 25 , wherein said air inlet has a grille covering the opening to allow passage of air and for preventing interference with the rotation of the fan.  
   
   
       30 . The hand-held blower as set forth in  claim 25 , wherein also including a loop attachment, and said loop attachment being made from a material selected from one of the following: string, rope, cord, metal ring, and plastic ring.  
   
   
       31 . The hand-held blower as set forth in  claim 25 , wherein said switching means is a momentary contact, spring-maintained switch.  
   
   
       32 . The hand-held blower as set forth in  claim 25 , wherein said blower is contained within a packaging shell, at least a portion of said shell being comprised of pliable plastic, such that the blower is operable by depressing the switching means visible through the external packaging shell, and the switching means automatically returning to a “normally off” position when released so as to prevent drainage of the power source.  
   
   
       33 . The hand-held blower as set forth in  claim 25 , also including one or more air inlets to provide cooling air to the motor.  
   
   
       34 . The hand-held blower as set forth in  claim 25 , also including a second motor disposed opposite said first motor, said second motor being coupled to a second centrifugal fan for driving said second fan to increase the amount of air supplied to the discharge aperture.  
   
   
       35 . A hand-held blower comprising: 
 a housing, said housing including a handle portion and a discharge end, wherein the discharge end includes a fan, an air inlet, and a discharge aperture, said discharge aperture including a tapered nozzle for direction of stream of pressurized air;    a battery compartment within the handle portion of said housing for holding one or more batteries;    a motor disposed within said housing between said battery compartment and said discharge aperture, wherein said battery compartment is adjacent to and electrically coupled to the motor in order to energize the motor when one or more batteries are installed in said battery compartment;    a centrifugal fan mounted on said motor within said housing and adjacent the air inlet and driven by said motor for directing air from the inlet through the discharge aperture, wherein said motor is disposed transverse to the longitudinal axis of said housing and said fan discharges pressurized air directly into said discharge aperture when rotating; and    a switch for electrically coupling the motor to the battery compartment to turn said blower on and off.    
   
   
       36 . The hand-held blower as set forth in  claim 35 , wherein said discharge aperture is elliptical.  
   
   
       37 . The hand-held blower as set forth in  claim 35 , wherein said air inlet having a grille covering the opening to allow passage of air and for preventing interference with the rotation of the fan.  
   
   
       38 . The hand-held blower as set forth in  claim 35 , wherein also including a loop attachment.  
   
   
       39 . The hand-held blower as set forth in  claim 38 , wherein said loop attachment being made from a material selected from one of the following: string, rope, cord, metal ring, and plastic ring.  
   
   
       40 . The hand-held blower as set forth in  claim 35 , also including one or more air inlets to provide cooling air to the motor.  
   
   
       41 . The hand-held blower as set forth in  claim 35 , also including a second motor and fan arrangement to increase the amount of air supplied to the discharge aperture.  
   
   
       42 . The hand-held blower as set forth in  claim 35 , wherein said switch while in a package may be operated without opening said package, and returned to a “normally off” position when released so as to prevent drainage of the power source.  
   
   
       43 . The hand-held blower as set forth in  claim 35 , wherein said switching means is a momentary-contact, spring-maintained switch.  
   
   
       44 . The hand-held blower as set forth in  claim 35 , wherein also including a power supply selected from at least one of the following: batteries, rechargeable battery, an optional power connector, or an AC power adapter.