Fragmented taggant coding system and method with application...

Chemistry: analytical and immunological testing – Tracers or tags

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07112445

ABSTRACT:
The present invention relates to identification tagging, and is specifically directed to identification tagging of ammunition. An isotopic taggant is deposited in a layer at the interface between the primer and the propellant so that, as the ammunition is fired, the taggant is dispersed throughout the propellant. The taggant is thus contained in the gunshot residue formed during the firing, and can be read by analysis of residue particles. Alternatively, the taggant may be deposited in a layer under the primer reactants, or in pellets which are easily destroyed by the chemical reactions involved in firing the ammunition, again dispersing the taggant throughout the propellant and the gunshot residue. Non-isotopic chemical taggants may also be employed if they are encoded so as to minimize the possibility of the information being destroyed or improperly read after the taggants are exposed to the chemical reactions in firing the ammunition. This is accomplished by employing a binary coding system and a system of authentication tags. Particulate taggants may also be used. The required large number of unique identification tags are obtained by using a fragmented coding system wherein each particle encodes only a portion of the serial number.

REFERENCES:
patent: 1650908 (1927-11-01), Ramsey
patent: 3733178 (1973-05-01), Eriksen
patent: 3772200 (1973-11-01), Livesay
patent: 4018635 (1977-04-01), Ryan
patent: 4131064 (1978-12-01), Ryan
patent: 4222330 (1980-09-01), Krystyniak
patent: 4329393 (1982-05-01), LaPerre
patent: 4359353 (1982-11-01), Kydd
patent: 4359399 (1982-11-01), Boyars
patent: 4363678 (1982-12-01), Nishimura
patent: 4399226 (1983-08-01), Danielson
patent: 4455179 (1984-06-01), Yamaguchi
patent: 5279967 (1994-01-01), Bode
patent: 5646365 (1997-07-01), Collier
patent: 5760394 (1998-06-01), Welle
patent: 6082264 (2000-07-01), Meyer
patent: 6647649 (2003-11-01), Hunt et al.
patent: WO 97/21067 (1997-06-01), None

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

Fragmented taggant coding system and method with application... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fragmented taggant coding system and method with application..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fragmented taggant coding system and method with application... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3544656

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