Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate
2007-05-08
2007-05-08
Snider, Theresa T. (Department: 1744)
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
C015S354000, C015S356000, C015S360000
Reexamination Certificate
active
11473293
ABSTRACT:
A clutchless, direct drive, self-propelled vacuum cleaner includes a nozzle base having a suction inlet and a housing pivotally mounted on the nozzle base. A suction source is mounted to one of the nozzle base and the housing. A filter chamber is located in one of the nozzle base and the housing. A drive motor is mounted to one of the nozzle base and the housing, the drive motor having an output shaft. A transmission is directly coupled to the output shaft of the motor. A driven wheel is directly coupled to the transmission. Also disclosed is a height adjustment mechanism for the vacuum cleaner, the height adjustment mechanism employing the drive assembly of the vacuum cleaner.
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Cipolla Mark E.
Paliobeis Steven J.
Fay Sharpe LLP
Royal Appliance Mfg. Co.
Snider Theresa T.
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