Brushing – scrubbing – and general cleaning – Implements – Fabric
Reexamination Certificate
1999-12-01
2001-10-30
Spisich, Mark (Department: 1744)
Brushing, scrubbing, and general cleaning
Implements
Fabric
C015S230100, C015S230160, C428S066600, C428S097000
Reexamination Certificate
active
06308368
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a cleaning pad mounted on a rotary pad base of a floor cleaning device when in use.
2. Description of the Prior Art
In a conventional method for cleaning a floor, a cleaning pad is mounted on the resin—made rotary pad base of a floor cleaning device, and the pad base is rotated at about 1500 rpm with the cleaning pad in contact with the floor, and the cleaning pad is moved on the floor.
However, in the case where the floor receives flaws on the surface and dirt is embedded in the flaws, it is impossible to remove the dirt on the floor effectively.
Therefore, in recent years, the new method has been employed which has following steps: resin wax mixed with thermally reactive resin is previously applied to the surface of the floor; the pad base is rotated at 1500 to 2500 rpm with the cleaning pad in contact with the floor; the cleaning pad is moved on the surface of the floor to soften the resin wax by the frictional heat to remove small bumps on the surface of the resin wax; and thereby restoring the surface of the resin wax to a state of mirror.
In this respect, a coil pad made of nylon fibers formed in a coil, a pad made of nonwoven fabric made of chemical fibers such as polyester fiber and having a thickness of about 2 cm or the like is used as the cleaning pad.
However, since the cleaning pad like this has air permeability, it does not much increase the temperature of the resin wax and hence does not sufficiently soften the resin wax. Therefore, the small bumps on the surface of the resin wax can not sufficiently be removed and thus the surface of the resin wax can not surely be restored to the state of mirror. Therefore, the cleaning pad is required to be moved on the floor many times.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a cleaning pad capable of surely restoring the surface of resin wax applied to the surface of a floor to a state of mirror.
The present invention provides a cleaning pad comprising a base cloth and a fiber layer made by implanting threads comprising 70 to 90 wt % cotton and 10 to 30 wt % nylon into the base cloth in a tufted manner and mounted on a rotary pad base of a floor cleaning device when in use.
In this cleaning pad, since mainly the nylon of the fiber layer generates frictional heat and the cotton of the fiber layer can prevent the heat from leaking, the resin wax applied to the surface of the floor is sufficiently softened and hence the surface of the resin wax can surely be restored to a state of mirror.
REFERENCES:
patent: 3728075 (1973-04-01), Cannan
patent: 4403367 (1983-09-01), Brown et al.
patent: 4961243 (1990-10-01), Barber
patent: 5893191 (1999-04-01), Schneider et al.
Patent KG, Corporation
Spisich Mark
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