The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 07, 1993
Filed:
Jan. 17, 1992
Hiroyuki Uejima, Nara, JP;
Minoru Takewaki, Osaka, JP;
Kohtoku Industrial Waste Management Incorporation, both of, JP;
Daitoh Knit Co., Ltd., both of, JP;
Abstract
A method for treating used human-waste disposal materials, containing a highly water-absorbent polymer, that have absorbed the water content of human waste. Such used materials are treated with an aqueous solution of an alkaline earth metal salt, such as calcium or magnesium, and then mechanically dehydrated. With this dehydrating method, the water content of used disposable paper diapers can be reduced efficiently and at low cost. This makes the dehydrated human-waste disposal material, such as disposable paper diapers, to be easily disposed of by incineration or other appropriate post-treatment means, or to be used effectively as an organic fertilizer.