Measuring and testing – Vibration – By mechanical waves
Reexamination Certificate
2006-02-07
2006-02-07
Kwok, Helen (Department: 2856)
Measuring and testing
Vibration
By mechanical waves
C073S602000
Reexamination Certificate
active
06993972
ABSTRACT:
An ultrasound system determines the presence of a foreign object in a container of fluid by measuring echo signals from the outer surface of the container and the inner surface of the container. The amplitude of the echo signals are compared to determine the presence of an object in the container. The system also determines viscosity of the contained fluid by measuring a through-transmission time through the container and the fluid, measuring an outer echo transmission time of an outer echo signal from the outer surface of the container and an inner echo transmission time of an inner echo signal from the inner surface of the container, and determining a time difference between the outer echo transmission time and the inner surface transmission time.
REFERENCES:
patent: 2427319 (1947-09-01), Weathers
patent: 3969926 (1976-07-01), Walker et al.
patent: 4136930 (1979-01-01), Gomm et al.
patent: 4651568 (1987-03-01), Reich et al.
patent: 4943713 (1990-07-01), Yoshida
patent: 5038615 (1991-08-01), Trulson et al.
patent: 5079729 (1992-01-01), Nowakowski
patent: 5197475 (1993-03-01), Antich et al.
patent: 6182511 (2001-02-01), Lucas
patent: 6322508 (2001-11-01), Goldenberg et al.
patent: 19440192 (2001-03-01), None
patent: 0821230 (1998-01-01), None
patent: WO 97/37217 (1997-10-01), None
T.H. Gan., D.A. Hutchines, and D.R. Billson, “Preliminary studies of a novel air coupled ultrasonic inspection system for food containers” Journal of Food Engineering, vol. 53, pp. 315-323 (2002).
E. Haeggstrom and M. Lukkala, “Ultrasound Detection and Identification of Foreign Bodies in Food Products”, Food Control, vol. 12, p37 (2001).
R. Saggin, and J.N., Couplant described an ultrasonic reflectance coefficient method in “Ultrasonic characterization of oil viscosity and solids content” (2000 IFT Annual Meeting, Dallas, Texas, Jun. 11-14, 2003; 30D-11).
M.J. McCarthy, R.L. Powell, J.A. Fort, D.M. Pfund, and D.M. Sheen, “Development of ultrasonic Doppler velocimetry for viscosity measurements” (2000 IFT Annual Meeting. Dallas, Texas. Jun. 11-14, 2000. nr 49-6).
R. Saggin, J.N. Couplant, “Concentration measurement by acoustic reflectance,” J Food Sci., vol. 66, pp. 681-685 (2001).
Malcolm J.W. Povey, Ultrasonics of food, Contemporary Physics, 1998, vol. 39, No. 6, pp. 467-478.
Edward Haeggstrom & Mauri Luukkala, Ultrasound detection and identification of foreign bodies in food products, Food Control 12 (2001) pp. 37-45, Helsinki, Finland.
T.H. Gan., D.A. Hutchins & D.R. Billson, Preliminary studies of novel air-coupled ultrasonic inspection system for food containers, Journal of Food Engineering 53 (2002) pp. 315-323 Coventry United Kingdom.
Search Report PCT/CA02/01492, Oct. 2, 2002.
Basir Otman Adam
Mittal Gauri S.
Zhao Bosen
1 M International Corporation
Carlson & Gaskey & Olds
Kwok Helen
LandOfFree
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