Patent · US Expired

Composting unit having a ventilation system for closed rotting units

US5693528A · kind A · utility

4Cited by

3References

21Claims

0Family size

Inventors

Klaus Grabbe · Braunschweig, DE
Lothar Schaar · Apolda, DE
Andreas Deutsch

Key dates

Filing date	Jan 26, 1995
Grant date	Dec 2, 1997
Priority date	—
Expiry date	Jan 26, 2015

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S435/818
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A composting unit is disclosed having a ventilation system for closed rotting units. A number of fans, passageways, and valves are designed and arranged in such a way that they ensure flow of conditioned circulating air, as desired, over and/or through and/or around a static or agitated stack of composting material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.