Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2005-10-18
2005-10-18
Tweel, Jr., John (Department: 2636)
Communications: electrical
Condition responsive indicating system
Specific condition
C324S309000
Reexamination Certificate
active
06956476
ABSTRACT:
A method and apparatus for screening samples to determine which samples include a target material. Generally, the samples are pre-screened to determine which of the samples have a piezoelectric resonance when irradiated with an electric field, to thereby indicate the presence of the target material. The samples that have the piezoelectric resonance are then further screened by a different process to confirm the presence of the target material. For example, samples that have the piezoelectric resonance are further screened for a specific nuclear quadrupole resonance (NQR), a specific nuclear magnetic resonance (NMR) or a specific visual characteristic, to confirm the presence of the target material in the sample. The apparatus and method can be used, for example, to search luggage at ports of entry for the presence of cocaine hydrochloride or heroin hydrochloride.
REFERENCES:
patent: 4170144 (1979-10-01), Scott
patent: 4511998 (1985-04-01), Kanda et al.
patent: 4636730 (1987-01-01), Bottomley
patent: 4833392 (1989-05-01), Hahn et al.
patent: 4887034 (1989-12-01), Smith
patent: 5006805 (1991-04-01), Ingwersen
patent: 5159617 (1992-10-01), King et al.
patent: 5166615 (1992-11-01), Sidles
patent: 5190766 (1993-03-01), Ishihara
patent: 5206592 (1993-04-01), Buess et al.
patent: 5233300 (1993-08-01), Buess et al.
patent: 5365171 (1994-11-01), Buess et al.
patent: 5424645 (1995-06-01), Doty
patent: 5500591 (1996-03-01), Smith et al.
patent: 5583437 (1996-12-01), Smith et al.
patent: 5592083 (1997-01-01), Magnuson et al.
patent: 5608321 (1997-03-01), Garroway et al.
patent: 6054856 (2000-04-01), Garroway et al.
patent: 6166541 (2000-12-01), Smith et al.
patent: 6486838 (2002-11-01), Smith et al.
patent: WO 93/11441 (1993-06-01), None
K. Fosshein et al, “Dynamic Polarization Echoes In Piezoelectric Powders”, Physical Review, vol. 17 No. 3, Feb. 1, 1978.
D.G. Hughes et al, “Spurious Signals Caused By The Piezoelectric Ringing Of NaNO2 in Pulsed NMR”, Academic Press (1984).
James P. Yesinowski et al, “Detection of 14N and 35Cl in Cocaine Base and Hyrdrochloride Using NQR, NMR, and SQUID Techniques”, Analytical Chemistry, vol. 67 No. 13. Jul. 1, 1995.
Joon C. Herl et al, “Electric Rield Effect on 14N NQR and Piezoelectric Resonance in (CH2)6N4 Powder”, Ferroelectrics Letters, vol. 18, pp. 197-202, 1994.
A.A. V. Gibson et al, “Proton NMR and Piezoelectricity in Tetramethylammonium Chloride”, Chemical Physic, vol. 57 No. 11, Dec. 1972.
K. Choi et al, “Inductive Detection of Piezoelectric Resonance by Using a Pulse NMR/NQR Spectrometer”, Rev. Sci. Instrum. 60(10) Oct. 1989.
Buess Michael L.
Garroway Allen M.
Lindquist Roy P.
Miller Joel B.
Yesinowski James P.
Hunnius Stephen T.
Karasek John J.
Ressing Amy
The United States of America as represented by the Secretary of
Tweel , Jr. John
LandOfFree
Method and apparatus for detecting a target material in a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for detecting a target material in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for detecting a target material in a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3459543