Dual energy source loss-on-drying instrument

Details Dual energy source loss-on-drying instrument Dual energy source loss-on-drying instrument

2011-08-16

2011-08-16

Caputo, Lisa M (Department: 2855)

Thermal measuring and testing

Thermal gravimetric analysis

C374S122000, C374S045000, C374S121000, C073S073000

Reexamination Certificate

active

07997790

ABSTRACT:
An instrument and associated method are disclosed for the loss-on-drying determination of the volatile content of a wide variety of samples. The instrument includes a cavity in which a sample for which the volatile content is to be determined can be placed, a first source for introducing microwaves into the cavity that have frequencies substantially other than infrared frequencies, a second source for introducing radiant heat into the cavity at frequencies different from the frequencies introduced by the first source, an analytical balance for measuring the weight of a sample while the sample is in the cavity and on the balance, a temperature sensor capable of measuring and positioned to measure the temperature of a sample in the cavity and on the balance, and a processor in communication with the temperature sensor and each of the first and second sources for controlling the introduction of the frequencies of microwave and radiant energy into the cavity in response to the temperatures measured by the temperature sensor to control the sample temperature until the microwaves from the first source and the radiant heat from the second source dry the sample sufficiently for the processor to determine the volatile content of the sample based on the weight change of the sample on the balance.

REFERENCES:
patent: 3909598 (1975-09-01), Collins et al.
patent: 4291775 (1981-09-01), Collins
patent: 4554132 (1985-11-01), Collins
patent: 4566804 (1986-01-01), Collins et al.
patent: 4681996 (1987-07-01), Collins et al.
patent: 4751356 (1988-06-01), Fukuda et al.
patent: 4807633 (1989-02-01), Fry
patent: 4889201 (1989-12-01), Oldendorf et al.
patent: 4964734 (1990-10-01), Yoshida et al.
patent: 5983711 (1999-11-01), Pappas et al.
patent: 6084226 (2000-07-01), Greene et al.
patent: 6092924 (2000-07-01), Scalese et al.
patent: 6227041 (2001-05-01), Collins et al.
patent: 6268570 (2001-07-01), McLendon et al.
patent: 6302577 (2001-10-01), Jennings et al.
patent: 6394647 (2002-05-01), Allmendinger et al.
patent: 6566637 (2003-05-01), Revesz et al.
patent: 6787362 (2004-09-01), Collins et al.
patent: 7100428 (2006-09-01), Dziki
patent: 2003/0139843 (2003-07-01), Hu et al.
patent: 2007/0199370 (2007-08-01), Diedrich et al.
patent: 34 11 495 (1985-10-01), None
patent: 4442078 (1996-05-01), None
patent: 10038783 (1998-02-01), None
patent: 00 16067 (2000-03-01), None
patent: 2007 045510 (2007-04-01), None
European Search Report of foreign counterpart application No. EP 07111135.5, mailed Nov. 27, 2007, 9 pages.
Mettler Toledo, “Methods of moisture content determination,” Application Brochure, 2002, Retrieved from Internet Oct. 30, 2007 at URL:http://www.northshorecare.com/moisture-methods.pdf, pp. 1-67.
Robens et al., “Gravimetric measurement of water vapour sorption, moisture and dry mass,” Journal of Thermal Analysis and Calorimetry, Kluwer Academic Publishers, DO, vol. 76, No. 2, May 1, 2004, pp. 639-646.
Tireki et al., “Production of bread crumbs by infrared-assisted microwave drying,” European Food Research and Technology, Jan. 1, 2006, vol. 222, No. 1-2, pp. 8-14.

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