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:
Aug. 30, 1977
Filed:
Jun. 15, 1976
Daniel G Russ, Fort Wayne, IN (US);
Telectro-Mek, Inc., Fort Wayne, IN (US);
Abstract
A portable compact contaminated fuel detector is used with a standard batch sampling technique. The sample is passed through two series filters in a filter holder into a vacuum receptacle. The differential filter opacity is checked in a photocell fixture using a light whose intensity is first adjusted by a potentiometer to a standard level using a milliammeter which is also read to determine each filter opacity. The operating structure is carried on a tiered deck providing different horizontal levels for greater ease and facility in performing tests. The device is combinable with a free water detector, preferably within the enclosure provided by the deck and having an auxiliary movable closure through which the test procedure may be viewed. The free water detector includes a sample holder for filter sample in close proximity to a plurality of comparison standards representative of different water content levels against which the sample may be compared. An ultraviolet light source is positioned to illuminate a filter in the sample holder and comparison standards, the light being such as to cause chemicals in the filter subject to reaction with free water in a fuel sample passed therethrough, as well as the comparison standards, to fluoresce. The intensity of the sample fluorescence is a function of the amount of free water in a sample of standard size and the intensity of the comparison standards is fixed to represent that fluorescence which occurs with known concentrations of free water in a sample of that size.