US 6,131,238 A · Self-propelled upright vacuum cleaner with offset agitator and motor pivot points

Abstract

A self-propelled vacuum cleaner is provided having an upper handle portion and a carriage pivotally mounted to a lower end of the handle portion for pivotal motion relative the handle portion about a horizontally extending carriage axis. A transmission drivingly connected to at least one drive wheel mounted on the carriage, whereby the at least one drive wheel propels the vacuum cleaner over a floor surface. A nozzle body pivotally mounted to the carriage for pivotal motion relative the carriage about a generally horizontally extending nozzle axis, the nozzle body having a downward facing suction opening. The nozzle axis being generally horizontally offset from the carriage axis.

Claims37

Dependent claims

A self-propelled upright vacuum cleaner comprising:

a) an upper handle portion;
b) a carriage pivotally mounted to a lower end of the handle portion for pivotal motion relative said handle portion about a generally horizontally extending carriage axis;
c) a transmission, said transmission being drivingly connected to at least one drive wheel mounted on said carriage, whereby said at least one drive wheel at least partially supports said vacuum cleaner on a floor surface and propels the vacuum cleaner over a floor surface;
d) a nozzle body pivotally mounted to said carriage for pivotal motion relative said carriage about a generally horizontally extending nozzle axis, said nozzle body having a downward facing suction opening;
and
e) wherein said carriage axis is offset from said nozzle axis.

3 more elements

Dependencies are inferred from the claim text.

Self-propelled upright vacuum cleaner with offset agitator and motor pivot points

Life of this patent

Self-propelled upright vacuum cleaner with offset agitator and motor pivot points

Life of this patent

Abstract

Claims37