Device in a toilet for biological degradation of excrement

• US 4,240,164 A
• Filed: 10/23/1978
• Issued: 12/23/1980
• Est. Priority Date: 10/28/1977
• Status: Expired due to Term

• Current Assignee: Polypur Forsaljnings AB
• Original Assignee: Polypur Forsaljnings AB
• Inventors: Lind, John H.
• Primary Examiner(s): Levy, Stuart S.
• Application Number:
  US05/953,369
• Time in Patent Office: 792 Days
• Field of Search: 4/111, 4/DIG. 12, 4/317, 4/319, 4/320, 4/321, 4/115, 4/300, 4/DIG. 19, 4/144.1, 366/279, 366/320, 366/343, 366/196, 210/178, 210/179, 422/225, 422/229, 422/109, 422/184, 71/8-10
• US Class Current: 4/449
• CPC Class Codes: A47K 11/02 Dry closets, e.g. incinerator closets
• CPC Class Codes: C05F 3/04 from human faecal masses
• CPC Class Codes: C05F 3/06 Apparatus for the manufacture
• CPC Class Codes: Y02A 40/20 Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
• 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
• CPC Class Codes: Y02P 20/145 the feedstock being materials of biological origin
• CPC Class Codes: Y10S 4/12 Aerobic decomposing toilet

Abstract

A toilet for biological degradation of excrement comprises a collecting vessel for excrement and for material suitable for the degradation thereof and a container for receiving a mixture of excrement and material discharged from the collecting vessel. The mixing and the discharge of the excrement and material are performed by a cultivator rotationally supported in the collecting vessel. The cultivator consists of a wire construction running continuously between two opposed walls of the collecting vessel and preferably being manufactured in one single piece.

Claims

1. Device in toilets for biological degradation of excrement, the device comprising a collecting vessel for excrement and for material suitable for the degradation thereof and a container for receiving a mixture of excrement and material discharged from the collecting vessel, said collecting vessel having a solid bottom portion and an upper edge above said bottom portion, said mixture being moved from the interior of said vessel over said upper edge to the exterior of said vessel when discharged from said vessel, said container having an opening located outwardly of and below said vessel upper edge to receive said discharged mixture, the mixing being performed by a cultivator rotationally supported in the collecting vessel, said cultivator comprising a wire construction running continuously between and rotationally supported by two opposed side walls of the collecting vessel and having an axis of rotation generally lengthwise of said vessel upper edge for mixing material and excrement and discharging the mixture to the container via said upper edge of the collecting vessel, said cultivator having portions spaced axially therealong and extending radially outwardly from said axis, said portions being disposed in planes substantially perpendicular to a plane disposed perpendicular to said axis of rotation.

2. Device according to claim 1, wherein the wire construction is manufactured in one piece.

3. Device according to claim 1 or 2, wherein the wire construction, at a distance from an imaginary rotational axis therethrough, comprises portions forming an angle different from right angle with said axis.

4. Device according to claim 1, wherein the wire construction is in the form of a deformed helix.

5. Device according to claim 1, wherein the wire construction is zigzag-formed in one single piece.

6. Device according to claim 1, wherein said portions extend radially outwardly from said axis of rotation a distance sufficient to be located close to said vessel bottom portion as said cultivator rotates.