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:
May. 29, 2012
Filed:
Mar. 16, 2009
Applicants:
Osman Basaran, West Lafayette, IN (US);
Qi Xu, Lisle, IL (US);
Inventors:
Osman Basaran, West Lafayette, IN (US);
Qi Xu, Lisle, IL (US);
Assignee:
Purdue Research Foundation, West Lafayette, IN (US);
Primary Examiner:
Int. Cl.
CPC ...
B41J 29/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
Apparatus and methods for producing a drop from a Drop on demand (DOD) dispenser, the drop having a radius that is much smaller than the radius of the nozzle that expels the drop. Generally, the Ohnesorge number is less than about 0.1. Various embodiments of the invention are found within a four dimensional space defined in terms of the Ohnesorge number, the Weber number, the actuation frequency, and the initial conditions.