Patent · US Expired

Roll having glass coating

US6733891B1 · kind B1 · utility

4Cited by
8References
32Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 31, 2000
Grant dateMay 11, 2004
Priority date
Expiry dateJan 10, 2021

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/2933
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

Rolls include a core and a glass outer coating on the core. The glass can be electrically charged and discharged. The outer coatings have smooth finishes and controlled electrical properties. The outer coatings can also provide selected mechanical, chemical and thermal properties. The rolls can be used in various applications in which controlled electrical properties are desired. For example, the rolls can be used as charge donor rolls in electrostatographic imaging apparatus.

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