Patent · US Expired

Developer distribution apparatus

US4173405A · kind A · utility

29Cited by
3References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 31, 1977
Grant dateNov 6, 1979
Priority date
Expiry dateOct 31, 1997

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S222/01
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

In an electrographic development apparatus having a magnetic brush and a sump wherein an auger transports developer from the sump to the brush, the auger being disposed in a tube located next to an inclined surface extending between the tube and the magnetic brush. The tube is provided with a plurality of openings. As the auger rotates it transports developer from the sump through the tube out of its opening to the inclined surface where it is distributed to the magnetic brush.

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