The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 12, 2016
Filed:
Jan. 13, 2014
Applicant:
Spectro Scientific, Inc., Chelmsford, MA (US);
Inventors:
Patrick F. Henning, Concord, MA (US);
Thomas G. Barraclough, Maynard, MA (US);
Brian A. Tweed, Dracut, MA (US);
Eric J. Olson, Phillipston, MA (US);
Assignee:
Spectro Scientific, Inc., Chelmsford, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 11/06 (2006.01);
U.S. Cl.
CPC ...
G01N 11/06 (2013.01); Y10T 29/49002 (2015.01); Y10T 29/49826 (2015.01);
Abstract
A viscometer assembly includes a first plate with a rail configured to constrain fluid thereon between its edges by surface tension. A second opposing plate has a surface spaced from the rail by a predefined gap of constraining fluid to the rail by surface tension when the rail is inclined and gravity pulls the fluid along the rail. The kinematic viscosity of the fluid is determined as a function of the predetermined gap and the time it takes the fluid to flow along the rail.