Patent · US Active

Air jet sieve device

US8678196B2 · kind B2 · utility

7Cited by

5References

18Claims

0Family size

Assignee

HOSOKAWA ALPINE Aktiengesellschaft · DE

Inventors

Hans Kaiser · Neuss, DE
Georg Konetzka · Augsburg, DE
Markus Schönwetter · Königsbrunn, DE

Key dates

Filing date	Apr 15, 2011
Grant date	Mar 25, 2014
Priority date	—
Expiry date	Aug 9, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB07B4/08
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to an air jet sieve device having a housing, at least one sieve for insertion in the housing, a sieve deck and chamber located below the sieve, a slotted nozzle beneath the sieve deck, a drive for the slotted nozzle, an air inlet to the slotted nozzle, an air outlet through the housing and out of the chamber located beneath the sieve deck, and a control unit to control operation of the device. The invention also relates to a method that permits not only detection of the sieving progress during a sieving process but also provides a criterion to permit establishing the sieving time. This is achieved by equipping the sieving machine with a measuring sensor through which the particles in the air outlet flow are detected triboelectrically and which are correlated with the sieving progress to permit establishing the sieving time.

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