Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2008-04-08
2008-04-08
Feggins, K. (Department: 2861)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S046000
Reexamination Certificate
active
07354141
ABSTRACT:
Methods are provided for analyzing characteristics of fluids in the context of an acoustic ejection system. Such a system has a controller, an acoustic radiation generator, and a coupling medium coupling the radiation to a reservoir holding fluid. The methods can use acoustic radiation to both perturb a surface of the fluid in the reservoir and analyze the effect of the perturbation. The methods may use information about prior fluids. The methods of the invention can determine physical characteristics such as speed of sound and viscosity. The methods also include ways to determine a level of acoustic energy suitable to eject a droplet. Preferably the methods are executed automatically under control of programming of a controller of an acoustic ejection system.
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Ellson Richard N.
Mutz Mitchell W.
Qureshi Shehrzad Ahmed
Stearns Richard G.
Feggins K.
Labcyte Inc.
Mintz Levin Cohn Ferris Glovsky and Popeo P.C.
Rose Flavio M.
LandOfFree
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