US 12,078,582 B2
Viscometer with reduced dead-volume and high dynamic range
Seong-Gi Baek, Pleasanton, CA (US); and Stacey Lynn Elliott, Pleasanton, CA (US)
Assigned to Rheosense, Inc.
Filed by Rheosense, Inc., San Ramon, CA (US)
Filed on May 10, 2022, as Appl. No. 17/741,350.
Claims priority of provisional application 63/186,662, filed on May 10, 2021.
Prior Publication US 2022/0357258 A1, Nov. 10, 2022
Int. Cl. G01N 11/08 (2006.01); G01N 11/00 (2006.01)
CPC G01N 11/08 (2013.01) [G01N 2011/0013 (2013.01); G01N 2011/0026 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A viscometer, comprising:
a viscosity sensor with a liquid flow channel for measuring a viscosity of a liquid flowing through the liquid flow channel;
a manifold with an inlet and an outlet for receiving a liquid sample through the inlet of the manifold and providing the received liquid sample through the outlet of the manifold to the viscosity sensor; and
a pump coupled with the manifold for causing an in-flow of the liquid sample into the manifold through the inlet of the manifold and an out-flow of the received liquid sample from the manifold through the outlet of the manifold, wherein:
the manifold includes a first valve coupled with the inlet of the manifold and a second valve coupled with the outlet of the manifold; and
the first valve is mechanically coupled with the second valve so that closing the first valve opens the second valve and opening the first valve closes the second valve.