Patent ID: 11890870
Assignee: LABCYTE INC.
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 13:
14. A droplet ejection system configured to eject a droplet from a non-Newtonian fluid in a reservoir, the system comprising:
an acoustic ejector configured to:
apply focused acoustic energy in a first pattern to a fluid surface of the non-Newtonian fluid to generate a leading lobe and a filament from the fluid surface without separating the filament from the leading lobe or the fluid surface; and
apply focused acoustic energy in a second pattern to the leading lobe to separate the leading lobe from the filament without ejecting satellite droplets such that the filament retreats into the fluid surface, wherein the filament comprises at least one bead of fluid, and the second pattern of focused acoustic energy prevents the at least one bead of fluid from breaking into one or more additional droplets; and

a processor and memory device storing executable instructions that, when executed by the processor, cause the acoustic ejector to apply the focused acoustic energy in the first pattern to a fluid surface of the non-Newtonian fluid and apply focused acoustic energy in the second pattern to the leading lobe.