US 11,740,018 B2
Ultrasonic-assisted liquid manipulation
Brian Kappus, Mountain View, CA (US); and Benjamin John Oliver Long, Bristol (GB)
Assigned to ULTRAHAPTICS IP LTD, Bristol (GB)
Filed by ULTRAHAPTICS IP LTD, Bristol (GB)
Filed on Aug. 23, 2021, as Appl. No. 17/409,783.
Application 17/409,783 is a continuation of application No. 16/563,608, filed on Sep. 6, 2019, granted, now 11,098,951.
Claims priority of provisional application 62/728,829, filed on Sep. 9, 2018.
Prior Publication US 2021/0381765 A1, Dec. 9, 2021
Int. Cl. F26B 5/02 (2006.01)
CPC F26B 5/02 (2013.01) 12 Claims
OG exemplary drawing
 
1. A method of liquid manipulation comprising the steps of:
establishing a transducer array having a plurality of ultrasonic transducers having known relative positions and orientations;
defining a plurality of control fields wherein each of the plurality of control fields has a known spatial relationship relative to the transducer array;
defining a control surface onto which the plurality of the control fields will be projected;
wherein the control surface is human skin;
orienting the control fields onto the control surface so that liquid on the control surface is adjusted using a spiral pattern of high acoustic pressure to produce capillary waves.