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US 4,905,343 AGranted
Vacuum cleaner switch
AssigneeThe Scott Fetzer Company
InventorJohn J. Jailor
Life of this patent
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AssigneeThe Scott Fetzer Company
InventorJohn J. Jailor
Estimating the term…
A control switch is disclosed for a two-speed vacuum cleaner motor and the like. The switch provides three sensors which operate in response to the mounting of three different types of accessories on a vacuum cleaner. One sensor causes low motor speed operation when an accessory is mounted requiring low speed operation. Another sensor operates to provide high speed motor operation when a high speed accessory is mounted. The third sensor prevents motor operation when an accessory is not mounted on the outlet of the vacuum cleaner. The control switch provides a high speed/low speed switch and a power switch. The power switch is automatically moved to its open or OFF position in response to the mounting of an accessory. Copnsequently, the high speed/low speed switch cannot operate to start the motor, and is therefore provided with low cost contacts. The control switch and motor provide plug-type connectors which automatically connect the internal motor wiring when the switch is installed.
A vacuum cleaner comprising a two-speed motor connected to drive a fan, a control switch operating to turn said motor on and off and to operate said motor at a selected one of said two speeds, said vacuum cleaner providing an inlet through which air is drawn in by said fan, and an outlet through which air is discharged by said fan, said inlet having means for selectively mounting one of two accessories which are each capable of being mounted on said inlet, said control switch operating said motor at a first speed of said two speeds when a first accessory of said two accessories is mounted on said inlet and operating said motor at a second speed of said two speeds when a second accessory of said two accessories is mounted on said inlet, a third accessory removably mounted on said outlet, said control switch permitting operation of said motor only when one of said first or second accessories is mounted on said inlet and said third accessory is mounted on said outlet.
A vacuum cleaner comprising an electric motor-driven fan, an inlet through which air is drawn when said motor operates, an outlet through which air is discharged when said motor operates, a control switch manually operable between an ON position and an OFF position to turn said motor on and off, an inlet accessory removably mounted on said inlet, and an outlet accessory removably mounted on said outlet, said control switch being movable to said ON position only when said inlet and outlet accessories are mounted.
Dependencies are inferred from the claim text.