Patent · US Active

Print powder reservoir sealed from atmosphere at lower pressure than atmosphere

US11733620B2 · kind B2 · utility

0Cited by
6References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 9, 2018
Grant dateAug 22, 2023
Priority date—
Expiry dateNov 9, 2038

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G2215/0877
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A print material cartridge may include a hopper to maintain an amount of print material therein; and an atmospheric pressure seal to seal the hopper from atmosphere; wherein a pressure within the hopper and sealed by the atmospheric pressure seal is lower than atmosphere.

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