초록 ▼

A five in one floor cleaning machine supported on wheels intermediate the front and rear of the machine, there being adjacent the rear a clean water outlet, a scrub brush, a dirty water pickup nozzle, a clean rinse water outlet, and a dirty rinse water pickup nozzle. A pair of concentric chambers re

A five in one floor cleaning machine supported on wheels intermediate the front and rear of the machine, there being adjacent the rear a clean water outlet, a scrub brush, a dirty water pickup nozzle, a clean rinse water outlet, and a dirty rinse water pickup nozzle. A pair of concentric chambers retain the clean and dirty water, the first chamber surrounding an inner chamber which is defined by a flexible spherical wall. As clean water empties from one chamber, and dirty water fills the other, the center of gravity stays substantially the same. The flexible wall of the inner chamber folds in under the force of surrounding increasing water pressure to decrease the size of the inner chamber as it empties of clean water.

대표청구항 ▼

A floor cleaning machine comprising: a support structure including a housing thereon forming a front and a rear for said machine; wheel means having an axle means beneath said support structure on a transverse axis intermediate said front and said rear for mobility of said machine; handle means at t

A floor cleaning machine comprising: a support structure including a housing thereon forming a front and a rear for said machine; wheel means having an axle means beneath said support structure on a transverse axis intermediate said front and said rear for mobility of said machine; handle means at the upper front of said machine for moving said machine; floor engaging cleaning means adjacent said rear for cleaning the floor, including a clean water outlet and a dirty water inlet; said housing having a first water retention chamber with a center of gravity rearward of said axis and substantially forward of said floor engaging cleaning means; an inner container within said first chamber defining an inner chamber for retention of water separated from water in said first chamber; said inner chamber being substantially symmetrical with said center of gravity; clean water conduit means between one of said chambers and said floor engaging cleaning means clean water outlet for conducting clean water to said floor engaging cleaning means; dirty water conduit means between the other of said chambers and said floor engaging cleaning means dirty water inlet to conduct dirty water from said dirty water inlet to said other chamber; said first chamber extending in front of and to the rear of said inner chamber, said first chamber and said inner chamber being located and configured to cause said center of gravity to remain substantially constant during emptying of said one chamber of clean water and filling of said other chamber of dirty water, such that downward force on said floor engaging cleaning means remains substantially constant throughout the cleaning cycle.