Patent · US Active

Fluid ejection apparatus

US9283590B2 · kind B2 · utility

9Cited by

8References

18Claims

0Family size

Assignee

HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. · US

Inventors

Alexander Govyadinov · Corvallis, US
Paul A. Richards · Corvallis, US

Key dates

Filing date	Jul 3, 2012
Grant date	Mar 15, 2016
Priority date	—
Expiry date	Jul 3, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41J2202/12
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A fluid ejection apparatus (20, 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120, 1220, 1320, 1420, 1490, 1720, 1820) and method eject a droplet of fluid using a drop generator (46, 246, 1546) receiving fluid from a passage (44, 244, 1344, 1444, 1494, 1544, 1744) having an inlet (54, 254, 1554) adjacent a fluid slot (40, 240, 1540) and an outlet (56, 256, 1556) spaced from the inlet (54, 254, 1554) and adjacent the fluid slot (40, 240, 1540). Fluid is drawn through a filter (50, 250, 650, 1550) with a pump (48, 248, 1548) within the passage (44, 244, 1344, 1444, 1494, 1544, 1744) that pumps the fluid towards the inlet (54, 254, 1554) to the drop generator (46, 246, 1546).

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