Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1989-05-03
1990-09-18
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15344, 15398, 15410, 15416, 154151, A47L 524
Patent
active
049568922
ABSTRACT:
A cordless vacuum brush includes a forward vacuum assembly containing a motor, fan, a dust trap and a rearward elongated hollow handle assembly containing a plurality of battery cells connected in series for operating the motor and a built-in battery charger. The rear or free end of the handle assembly is equipped with an endcap having a fold-out connector or plug for plugging into an 120 volt AC outlet. The handle assembly is detachably secured to the vacuum assembly so that it can be removed for charging the batteries and when attached to an electrical wall outlet will hang straight down therefrom. A generally rectangular flat elongated brush head with a hollow interior and peripheral depending soft, pliable bristles includes means for flexibility of movement relative to the vacuum assembly so that it does not have to be held or operated at any fixed angular orientation relative to the surface being dusted and is also designed for orientation either transverse to the longitudinal axis of this device for general use or endwise in alignment with such axis for insertion into confined areas. The swing joint component is spring loaded and biased to restore the brush to longitudinal alignment. A switch is provided to allow momentary or continuous operation and with the availability of a spare handle assembly, the operating time for this device can be indefinite by interchanging such assemblies when necessary. The batteries are easily replaceable to provide indefinite running time with a single handle assembly.
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patent: 4688294 (1987-08-01), Simonsson
patent: 4734017 (1988-05-01), Levin
Adler Morton S.
Moore Chris K.
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