Abstract There is disclosed an apparatus and method for cleaning and processing highly soiled articles, such as commercial oilimpregnated dust mops and cleaning cloths, in a closed, relatively pollution-free cycle in which the soiled work is cleaned by immersion and tumbling in large volumes of the impregnating oil medium in a succession of cycles and in which a plurality of reservoirs of the oil medium are maintained having different degrees of soil impurity and in which the most contaminated batch is recycled through a continuous filter utilizing an expendible filtering medium and a vacuum to achieve a dry waste disposal composed of inert filtering material, inert soil, and insignificant quantities of residual oil.
Inventors
👤 S Landon
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-11-02 07:41
CPC Classifications
D; D06; D06F; D06F43/00; D06F43/007
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
47 words
The method of claim 1, including the steps of passing the filter cake through an air cycle under pressure differential to extract substantially all oil from the soil residue, and skimming off the residue and a small depth of filter powder before re-immersion in the soiled oil.
Claim 2
Dependent Claim
17 words
The method of claim 1, including the step of heating the oil flow to the filter means.
Claim 3
Dependent Claim
21 words
The method of claim 1 including the step of removing lint from the oil prior to performing filtering or storing operations.
Claim 4
Independent Claim
137 words
A method for reprocessing soiled oil-impregnated cleaning impelements having textile bodies, comprising the steps of heating impregnating oil to approximately 125* to 150* F., immersing the cleaning implements in a large volume of the preheated impregnating oil, activating the oil and the cleaning implements to perform at least one washing cycle and remove the soil from the cleaning implements, raising the temperature of the immersion oil to approximately 160* to 175* F., and extracting the oil from the cleaning implements to leave from 20 to 50 per cent oil by weight in the cleaning implements as an impregnation in the textile bodies, thereby to provide oil of selectively higher viscosity during washing to effect dispersion of particulate soil solids and to provide oil of relatively lower viscosity to effect extraction of the oil from the textile bodies.