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:
Sep. 22, 2009
Filed:
Apr. 10, 2007
Todd Yakimoski, Beaumont, CA;
Scott Jacobs, Edmonton, CA;
Ken Sitko, Edmonton, CA;
Ahmed Hammami, Edmonton, CA;
Terry Sopkow, Edmonton, CA;
Craig Borman, Camrose, CA;
Todd Yakimoski, Beaumont, CA;
Scott Jacobs, Edmonton, CA;
Ken Sitko, Edmonton, CA;
Ahmed Hammami, Edmonton, CA;
Terry Sopkow, Edmonton, CA;
Craig Borman, Camrose, CA;
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
Apparatus and methods are described for observing samples at non-ambient temperatures and pressures. One apparatus comprises a cell body having a fluid flow-through passage and a light passage intersecting the fluid flow-through passage at an adjustable light pathlength fluid analysis region; first and second light-transmissive windows in the light passage, each window having at least one crystal axis aligned longitudinally with a longitudinal axis of the window, the windows having opposed, spaced apart, substantially flat surfaces defining the adjustable light pathlength fluid analysis region, the first window having a first window holder and the second window having a second window holder, the first window rotationally isolated from the first window holder, the second window rotationally coupled to the second window holder, the first window holder able to gradually move the first window and thus adjust the light pathlength; and first and second light polarization filters.