US 5,700,689 AGranted

Ventilated composter

OwnerHeinrich Wusterinventor

Life of this patent

Estimating the term…

Loading patent…

Abstract

In an apparatus for making compost, which apparatus comprises a preferably upwardly tapering container (1), which is adapted to be vented at its top and has an upper charging opening (4), which can preferably be closed by a cover (3) and which serves to receive the material to be composted, also a lower discharge opening (7), which can preferably be closed by a flap (6) and which permits the compost to be taken out, a plurality of lower ventilating openings (9), which extend through the container wall (5), and a plurality of air-guiding elements (10), which are provided on the inside surface of the container wall (5) and serve to guide the supply air, which enters through the ventilating openings (9) and flows along the inside surface of the container wall (5). The air guiding elements (10, 12, 13, 15) on the inside surface of the container wall (5) define a flow passage labyrinth, which the air flow along the container wall (5).

Claims12

Dependent claims

A composting device comprising an open-bottomed container having a top end, a bottom end and a side wall extending between the top end and the bottom end, the container having openings to allow venting at the top end, the container comprising

(a) a charging opening at the top end for charging material to be composted into the container,
(b) a discharge opening at the bottom end for discharging compost from the container,
(c) a plurality of venting openings in the side wall at the bottom end, and
(d) a plurality of air-guiding scale-like bosses projecting inwardly from an inner surface of the side wall to form a labyrinth of air flow passages defined therebetween for air entering through the venting openings and flowing along the inner side wall surface while the air-guiding bosses forming the labyrinth brake the air flow,
(1) the air-guiding bosses being arranged in superposed rows, two adjacent ones of the air-guiding bosses in each row respectively defining therebetween short sections of the labyrinth of air flow passages, and a respective one of the air-guiding bosses in a superposed row being arranged above a respective one of the short sections to form a deflector for the air flowing therethrough.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/433,424Filed 28 Apr 1995
Priority: AT 1780/933 Sep 1993
Granted: 23 Dec 1997
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

C05F 17/907
Apparatus therefor: small-scale devices without mechanical means for feeding or discharging material, e.g. garden compost bins
Y02P 20/145
Feedstock: the feedstock being materials of biological origin
Y02W 30/40
Technologies for solid waste management: bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
C05F
Organic fertilisers not covered by subclasses c05b, c05c

Family

No related US applications are recorded in the indexed filing history.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key