The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 16, 2004
Filed:
Jan. 29, 2002
Applicant:
Inventors:
Robert A. Harvey, Cambridge, GB;
Paul R. Drury, Royston, GB;
Assignee:
XAAR Technology Limited, Cambridge, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/14 ; B41J 2/045 ;
U.S. Cl.
CPC ...
B41J 2/14 ; B41J 2/045 ;
Abstract
A droplet deposition apparatus includes an elongate chamber having a nozzle through which in operation droplets of liquid are ejected from the chamber for deposition, means for varying the pressure of liquid in the chamber by varying the volume thereof to effect ejection of the droplets and means for causing a flow of liquid in the chamber in addition to that necessary to replenish the ejected droplets, the flow passing across the nozzle to clean it.