Patent · US Active

Powder conveying pump

US7530768B2 · kind B2 · utility

9Cited by

5References

33Claims

0Family size

Assignee

Durr Systems, Inc. · US

Inventors

Thomas Dürr · Magstadt, DE
Hans-Georg Fritz · Esslingen am Neckar, DE
Frank Herre · Oberriexingen, DE

Key dates

Filing date	Feb 6, 2006
Grant date	May 12, 2009
Priority date	—
Expiry date	Apr 26, 2027

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB05B7/1459
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A powder transfer pump to convey a powder, in particular in a powder coating station. The powder transfer pump comprises a transfer chamber with a transfer chamber wall, an inlet opening into the transfer chamber to supply the powder to the transfer chamber, an outlet opening out of the transfer chamber to convey the powder from the transfer chamber, a negative pressure connection opening into the transfer chamber to generate negative pressure in the transfer chamber in order to suck the powder into the transfer chamber, and a positive pressure connection opening into the transfer chamber to discharge the powder that is present in the transfer chamber through the outlet. The transfer chamber wall is essentially gas-tight.

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