Piezoelectric dispenser with a longitudinal transducer and replaceable capillary tube

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11998939
APP PUB NO 20220305515A1
SERIAL NO

17451310

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Abstract

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A dispenser and methods for transferring liquids are disclosed. The dispenser may include a capillary tube with tip having an aperture, a piezoelectric actuator coupled to the capillary tube at a location. Actuation of the piezoelectric actuator causes a pressure wave to propagate along the capillary tube toward the tip such that radial motion at the location is transmitted as distally extending axial motion of the tip, thereby causing a droplet of a predetermined volume to be ejected from the aperture. In some embodiments, the capillary tube has a modulus of elasticity in a range which dampens acoustical noise from the actuation and provides single drop stability over a range of drop sizes.

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Patent Owner(s)

Patent OwnerAddress
BIODOT INC2852 ALTON PARKWAY IRVINE CA 92606

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gunsalus, Shane Westminster, US 3 12
Ivri, Yehuda Newport Beach, US 76 3904
Kuo, Eric P Upland, US 3 12
Tisone, Thomas C Orange, US 35 1261

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