Patent Number: 8,869,600

Title: Falling-piston viscometer and methods for use thereof

Abstract: A falling piston viscometer which includes a measuring bushing and a piston configured to be slidably receivable inside the measuring bushing is provided herein. More specifically, the circumferential edge of first section of the piston in the described falling piston assembly is modified to allow for decreased friction and sensitivity. A lifting mechanism, in communication with the piston and piston rod, raises the piston to an upper piston position within the measuring bushing, upon instruction from a controller. Upon the piston being lifted, fluid is drawn into the measuring bushing. The controller is configured to maintain the piston in a raised position for a pre-programmed time, after which, the controller allows the piston to fall, by the force of gravity.

Inventors: Norcross, Jr.; Robert A. (Newton, MA)

Assignee: Norcross Corporation

International Classification: G01N 11/00 (20060101)

Expiration Date: 2018-10-28 0:00:00