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. 06, 1976
Filed:
Jul. 22, 1974
Miner N Munk, Walnut Creek, CA (US);
Varian Associates, Palo Alto, CA (US);
Abstract
Apparatus and method applicable to liquid chromatography for continuously detecting the viscosity of the effluent from an analysis column of a chromatograph system. The effluent is forced through a tubular path in a flow resistance element, which may contain a packing material to increase the amount of energy dissipated in the flow resistance element. The temperature of the effluent is sensed before and after passage through the path. A signal is generated which is a function of the difference between the value of temperature which is sensed before and after traversal of the effluent through the tubular path. From these measurements, the viscosity of the effluent may be computed as a function of the observed temperature change.