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:
Apr. 06, 2004
Filed:
Mar. 13, 2002
Jeff A. Wagner, Washington Twp., NJ (US);
Thomas G. Bancroft, Byram Twp., NJ (US);
Rudolph Research Analytical, Flanders, NJ (US);
Abstract
A sample cell in a polarimeter comprises a thermally conductive body enclosing a substantially cylindrical internal volume with an insulating outer cover which leaves one face exposed for complementarily contacting a temperature controlled base plate so as to keep the sample cell at a predetermined temperature, and a means for positioning the sample cell at a predetermined position such that a measuring light beam longitudinally passes through the sample cell. The water jacket system required for the conventional cylindrical sample cells is eliminated. A cell holder for holding a cylindrical sample cell in a polarimeter comprises a heat transfer element having a concave cylindrical heat transfer surface for complementarily contacting an external cylindrical surface of the cylindrical sample cell so as to keep the sample cell at a predetermined temperature. The heat transfer element is thermally conductive to a thermal electrical conductor element the temperature of which is controllable by an electric current. The cylindrical sample cell is positioned in the light path of the polarized light beam by a cell mount formed by the heat transfer element, or by a pair of flanges resting on a pair of parallel rails. The invention eliminates the use of the water jacket temperature control system for the cylindrical sample cells.