Method and Device for Maintaining Constant Moisture Level in Cleaning Cloths

Abstract

This invention relates to a method and device for maintaining an optimum dampness level in preconditioned cleaning cloths for extended periods of time while still enabling repetitive retrieval and use of individual cloths. The device described herein maintains an environment where the temperature and humidity of the vapor surrounding the cloths are stored to a preset level, thereby minimizing moisture change. The invention is applicable to any cleaning operation requiring repetitive small-batch operations over an extended period of time, but is especially useful for such operations such as window cleaning in commercial car washes and food service establishments.

1 . A method of keeping cleaning cloths conditioned with a prescribed amount of cleaning fluid comprising placing the cloths into a closeable, insulated container which contains a reservoir of cleaning fluid separate from the cleaning cloths which allows vapors from the cleaning fluid to continually permeate the cleaning cloths. 
     
     
         2 . A method according to  claim 1  wherein the cleaning fluid reservoir is kept immediately beneath the cloths. 
     
     
         3 . A method according to  claim 2  wherein the cloths are kept separated from the fluid in the reservoir by a flat grating or perforated shelf made of any suitable water-resistant material. 
     
     
         4 . A method according to  claim 2  wherein the cloths are kept separated from the fluid in the reservoir by means of a basket-shaped grating or perforated basket made of any suitable water-resistant material. 
     
     
         5 . A method according to  claim 1  in which the cleaning fluid contains a disinfectant. 
     
     
         6 . A method according to  claim 1  in which the closeable, insulated container referenced therein includes a heating unit in the fluid reservoir which can be set to maintain the fluid and the atmosphere within the container to a specific temperature. 
     
     
         7 . A method according to  claim 6  in which the heater heating unit can be set to a temperature between 40F and 150F. 
     
     
         8 . A method according to  claim 6  in which the closeable, insulated container includes a temperature and humidity sensor with external display and control module. 
     
     
         9 . A method according to  claim 8  in which the temperature and humidity sensor are connected electronically through a control board to adjust fluid temperature, as necessary, to maintain a consistent relative humidity level and desired cloth temperature. 
     
     
         10 . A device for keeping cleaning cloths conditioned with a prescribed amount of fluid comprising a closeable, insulated container, a reservoir of cleaning fluid separated from the cleaning cloths by a grate or basket, a heating device for maintaining the fluid at a prescribed temperature, vents to aid in the escape of excess humidity and a control module for setting and maintaining a prescribed temperature and humidity level.