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:
Nov. 19, 1996
Filed:
Mar. 22, 1995
Daniel G Russ, deceased, late of Fort Wayne, IN (US);
Karl I Haddad, Fort Wayne, IN (US);
Telectro-Mek, Inc., Fort Wayne, IN (US);
Abstract
A particulate and free water contamination measuring apparatus includes a slide tray adapted for carrying either particulate sample filter elements or free water sample filter elements. The slide tray carrying the filter elements is inserted in a reading chamber whereat, in the particulate mode, the apparatus reads the opacity of two sample filters and, in the free water mode, the apparatus reads fluorescence of the free water filter element. The voltage signals representative of particulates or free water are digitized by an analog to digital converter and read and stored by a digital computer. The digital computer monitors the location of the slide tray within the reading chamber by monitoring location detection switches operable in response to the location of the slide within the reading chamber. The digital computer is programmed to use the digitized voltage signals and compute and provide an output to a liquid crystal display the resulting measured particulates or free water in human readable form, such as a numeric value in milligrams per liter or parts per million.