Patent · US Expired

Reservoir for powdery media

US6948888B2 · kind B2 · utility

1Cited by
19References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 24, 2003
Grant dateSep 27, 2005
Priority date
Expiry dateDec 24, 2023

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB05C19/02
  • WIPO fieldSurface technology, coating
  • WIPO sectorChemistry

Abstract

A reservoir for powdery media, in particular powder coating, comprises a housing having at least one inlet and an outlet. A fluidising floor of porous, air-permeable material is located in the interior of the housing at a distance from its base. In this way a pressure chamber which is chargeable with compressed air is formed between the fluidising floor and the base of the housing. In order to reduce the quantity of compressed air required for fluidising and to keep low the mechanical stress imposed on the powdery medium when in the fluidised state, the cross-section of the housing narrows downwardly towards the fluidising floor. In addition, this shape of the housing generates turbulence in the fluidised powdery material.

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