Method and device for treatment of human excrement

• US 9,113,755 B2
• Filed: 03/23/2010
• Issued: 08/25/2015
• Est. Priority Date: 05/20/2009
• Status: Active Grant

• Current Assignee: Derek Lam, Lai Yan Chan
• Original Assignee: Derek Lam, Lai Yan Chan
• Inventors: Lam, Derek, Chan, Lai Yan
• Primary Examiner(s): Le, Huyen
• Assistant Examiner(s): SKUBINNA, CHRISTINE J
• Application Number:
  US13/263,747
• Publication Number:
  US 20120031855A1
• Time in Patent Office: 1,981 Days
• Field of Search: 41111-1116, 490/5, 4DI/G 1.1, 4DI/G 1.2
• US Class Current: 1/1
• CPC Class Codes: A47K 11/02 Dry closets, e.g. incinerator closets
• CPC Class Codes: Y02A 50/30 Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

Abstract

A method for treatment of human excrement comprises the following steps: (1) providing a chamber (5) having a top opening through which excrement enters the chamber (5); (2) allowing solid excrement to form a layer on a porous plate (6) inside the chamber (5) by gravity wherein excrement is stored firstly at front storing region (13) and secondly at rear storing region (14), and allowing urine to fall down into the urine storing region (15) through perforations in the porous plate (6); (3) ventilating the interior of chamber (5) by a ventilation system, and providing an indirect heat source (7) inside the chamber (5). A device for treatment of human excrement comprises the chamber (5), the porous plate (6) with the front storing region (13) and the rear storing region (14), the urine storing region (15), the ventilation system and the indirect heat source (7).

Claims

1. A method for treatment of human excrement comprising steps of:

providing a chamber having a top opening through which excrement enters the chamber;

setting up a porous storing plate inside the chamber and said storing plate inclines and features to have a protrusion located under the top opening and the storing plate extends horizontally in form of a series of corrugations on which a baffle is mounted to form front and rear storing regions;

allowing urine to fall down into a urine storing region at a bottom of the chamber through perforations in the storing plate;

storing an excrement layer firstly at the front storing region and then at the rear storing region;

ventilating the chamber interior by a ventilation system located at a top area of the chamber wherein air is drawn in through an air inlet at the rear storing region and passing through the storing plate into the urine storing region and then back up through the storing plate into the front storing region and then exits the chamber.