Method for cleaning carpet
OwnerLawrence F. Howard, James W. Millsinventors
Life of this patent
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Abstract
A method and apparatus for cleaning carpet. The pile of the carpet is first lifted, opened and agitated by stiff rotating brushes and beater bars, separating the foreign matter therein from the pile and bringing the matter to the surface of the carpet. The carpet is then vacuumed removing the separated matter therefrom. A film of cleaning agent is then sprayed through a hand-held wand over the carpet encapsulating the carpet fibers. The wand communicates with a portable pressurized supply of cleaning agent. After a short setting, the carpet is scrubbed with counter-rotating or rotary brushes. The agent is then allowed to dry and the residue removed with a vacuum.
Claims9
A process for cleaning shag type carpet comprising the sequential steps of lifting, opening and agitating the carpet pile with counter-rotating brushes, beating and vacuuming the carpet to remove over 95% of the foreign matter therefrom, applying a mist of cleaning agent over the carpet to encapsulate the fibers thereof, allowing the cleaning agent to remain in a quiescent state for a period of at least 2 minutes, agitating the carpet pile with the cleaning agent thereon with counter-rotating brushes, allowing the carpet to dry and vacuuming the carpet.
A process for cleaning carpet with a profile having about 1/4 to 3/8 inch high fibers comprising the sequential steps of lifting, opening and agitating the carpet pile with an oscillatory brush and vacuuming the carpet to remove over 95% of the foreign matter therefrom, applying a mist of cleaning agent over the carpet fibers, allowing the cleaning agent to remain in a quiescent state for a period of at lease two minutes, agitating the carpet pile with the cleaning agent thereon with a rotary brush, allowing the carpet to dry and vacuuming the carpet.
A process for cleaning high-low carpets comprising the sequential steps of lifting, opening and agitating the carpet pile with counter-rotating brushes and vacuuming the carpet to remove over 95% of the foreign matter therefrom, applying a mist of cleaning agent over the carpet to encapsulate the fibers thereof, allowing the cleaning agent to remain in a quiescent state for a period of at least two minutes, agitating the carpet pile with the cleaning agent thereon with rotating brushes, allowing the carpet to dry and vacuuming the carpet.
Dependencies are inferred from the claim text.