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:
Mar. 08, 1994
Filed:
May. 29, 1992
Bruce L Bartlett, Woodenville, WA (US);
Knobbe, Martens, Olson & Bear, Newport Beach, CA (US);
Abstract
Due to ever-increasing waste production and ever-dwindling landfill space, alternatives to throwing away disposable diapers is needed. The present invention relates generally to a recycling process for reclaiming used paper and plastic materials. The process comprises a first step of shredding the used disposable diapers into small pieces, which facilitates the separation of the plastics from the pulp-like filler material. The shredded matter is then washed in a solution comprising water containing various ecologically-safe cleaning agents, as well as calcium chloride and salt to neutralize the acrelites in the pulp-like material. The shredded matter is then washed in a washer comprising a perforated cylindrical drum, which spins and forces the slurry through the perforations, while retaining the plastic material. The slurry-like material containing pulp is then dehydrated. The separate plastic and dehydrated pulp-like materials can then be sold for recycling.