Patent · US Active

Drop ejection device

US7681994B2 · kind B2 · utility

2Cited by
11References
30Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 21, 2005
Grant dateMar 23, 2010
Priority date—
Expiry dateFeb 25, 2027

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB41J2002/14475
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

Disclosed devices include a channel having a wall with a plurality of spaced apart projections extending therefrom. The projections substantially prevent intrusion of a liquid into the projections.

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