Apparatus for marking and identifying liquids

Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C422S082050, C250S343000, C250S339090, C250S339110, C250S339120, C073S061430, C073S061440, C436S056000, C436S060000

Reexamination Certificate

active

06881381

ABSTRACT:
A liquid can be marked for identification purposes with at least first and second miscible markers. The markers are mixed in the liquid so that the ratio of the concentration of the first marker to the concentration of the second marker is substantially equal to a predetermined value. Thus, by comparing the ratio of the measured concentration of the first marker to the measured concentration of the second marker with predetermined values the liquid can be uniquely identified. The detectors can be connected to a processor and control unit (22) for initiation of testing, for processing of detection signal from the detectors, and for display of readout information. Processor and control unit (22) can include a look up table (23) for storing information about marking patterns, a comparison element (35) for comparing measured values with values supplied by look up table (23), and a display (30).

REFERENCES:
patent: 4209302 (1980-06-01), Orelup
patent: 4278444 (1981-07-01), Beyer et al.
patent: 4606859 (1986-08-01), Duggan et al.
patent: 4918020 (1990-04-01), Nowak
patent: 5139334 (1992-08-01), Clarke
patent: 5156653 (1992-10-01), Friswell et al.
patent: 5225679 (1993-07-01), Clarke et al.
patent: 5229298 (1993-07-01), Zoumalan
patent: 5279967 (1994-01-01), Bode
patent: 5466826 (1995-11-01), Cuthbert
patent: 5474937 (1995-12-01), Anderson et al.
patent: 5525516 (1996-06-01), Krutak et al.
patent: 5569922 (1996-10-01), Clarke
patent: 5677186 (1997-10-01), Anderson et al.
patent: 5677187 (1997-10-01), Anderson et al.
patent: 5742064 (1998-04-01), Infante
patent: 5792610 (1998-08-01), Witney et al.
patent: 5862512 (1999-01-01), Voorhees et al.
patent: 6025200 (2000-02-01), Kaish et al.
patent: 6274381 (2001-08-01), Pauls et al.
patent: B-4567893 (1994-02-01), None
patent: 0327163 (1989-08-01), None
patent: 0512404 (1992-11-01), None
patent: 9412874 (1994-06-01), None
patent: WO 9506249 (1995-03-01), None
Coulombe, “Chemical Markers in Weathered Gasolines,” J.of Forensic Sciences, vol. 40, No. 5, Sep. 1995, pp. 867-873.*
Coulombe, R., “Chemical Markers in Weathered Gasoline”,Journal of Forensic Sciences, JFSCA, vol. 40, No. 5, (Sep. 1995) pp. 867-872.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Apparatus for marking and identifying liquids does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for marking and identifying liquids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for marking and identifying liquids will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3423944

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.