Patent · US Expired

Electrostatic copier device

US3948218A · kind A · utility

1Cited by
8References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 27, 1974
Grant dateApr 6, 1976
Priority date—
Expiry dateNov 27, 1994

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G15/0801
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

In an electrostatic copier using a particulate developer mix the invention provides a source of the mix, a supply ramp having an inlet end located higher than the source, and a conveyor for conveying the developer mix from the source to the inlet end of the supply ramp. The conveyor is composed of an endless flexible belt trained about at least one driven roller and having one end portion which extends into the source and another end portion which discharges onto the inlet end of the ramp. A plurality of pins is anchored in the belt and projects from a conveying surface thereof so as to entrain the developer mix from the source.

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