Ventilation for organic matter breakdown

Details Ventilation for organic matter breakdown Ventilation for organic matter breakdown

1999-05-03

2001-04-17

Redding, David A. (Department: 1744)

Chemistry: molecular biology and microbiology

Apparatus

Bioreactor

C435S818000

Reexamination Certificate

active

06218177

ABSTRACT:

TECHNICAL FIELD
This invention relates to ventilation for organic matter breakdown and has been devised particularly though not solely for the ventilation of closed containers used for composting and/or the breeding of worms.
BACKGROUND ART
There are many situation in which closed containers, typically drums or bins are used for composting organic material such as kitchen or garden waste either as a simple composting operation or when assisted by the action of earthworms, whether the prime purpose of the operation is for breaking down the organic matter or for the breeding of worms. Such apparatus is described in the specification of Australian patent application number 58295/94.
It is desirable to provide a degree of ventilation to such containers to assist the aerobic breakdown of the organic matter within the container and such ventilation is typically provided by way of screened vents in the lid and/or sides of such containers. It is however desirable to provide an enhanced level of ventilation which will capture breezes blowing over the container and direct the air into the container in a manner and location which is particularly conductive to aerobic breakdown and to the breeding of worms within the container.
DISCLOSURE OF THE INVENTION
The present invention therefore provides apparatus for breaking down organic matter comprising a container having a case and upwardly extending peripheral side walls, supported on a plurality of legs, characterised by the provision of an open channel-like duct within each leg, each leg being mounted to the container such that air can flow from the duct to the interior of the container, providing ventilation.
Preferably each leg is mounted in a corresponding socket in the base of the container.
Preferably each socket has one or more openings in the upper part thefeof allowing air to pass from the duct in a leg engages in the socket, into the container.
Preferably the openings comprise an array of foramina sized to allow air flow while inhibiting the ingress of insects.


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