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:
Jun. 09, 2020
Filed:
Apr. 19, 2018
Anthony Peter Foord, Worthing, GB;
Stuart Lucas Lunt, Watersfield, GB;
Anthony Peter Foord, Worthing, GB;
Stuart Lucas Lunt, Watersfield, GB;
Parker Hannifin Manufacturing (UK) Ltd., Hemel Hempstead, Hertfordshire, GB;
Abstract
A sample testing apparatus is disclosed for use in optical transmission analysis of fluid samples such as oils or engine oils. The apparatus comprises a transmission cell comprising first and second fixed walls () and a movable window () that is moved with respect to the first and second walls in and out of a test region (). When the movable window () is moved into the test region () an optical path through a fluid sample in the cell is defined, the optical path through the sample comprising a portion extending through the or each gap (L,L) between a one of the first and second fixed walls () and the at least a portion of the first movable window (). Also disclosed are methods of using the sample testing apparatus and methods of performing a measurement for use in optical transmission analysis of a fluid sample.