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

Claim 14:
15. A method of ejecting a droplet containing a non-Newtonian fluid from a fluid reservoir, the method comprising:
applying a tone burst pattern of focused acoustic energy to a fluid reservoir containing a non-Newtonian fluid, wherein the application of the tone burst pattern to the fluid reservoir ejects a droplet of the non-Newtonian fluid from the fluid reservoir, and wherein the tone burst pattern comprises:
a first discrete tone burst segment to raise a leading lobe and filament comprising at least one bead of fluid from a fluid surface of the non-Newtonian fluid;
a second discrete tone burst segment applied subsequent to the first discrete tone burst segment; and
a third discrete tone burst segment applied subsequent to the second discrete tone burst segment, wherein the second and third discrete tone bursts effect droplet ejection by separating the leading lobe from the filament, and the tone burst pattern prevents the at least one bead of fluid from breaking into one or more additional droplets.