Optical product detection sensor

Details Optical product detection sensor Optical product detection sensor

2011-04-12

2011-04-12

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

For light transmission or absorption

Reexamination Certificate

active

07924424

ABSTRACT:
An optical detection sensor detects presence or absence of a product within a fluid delivery medium. An emitter directs radiation into the fluid delivery medium and detectors detect transmitted light at a plurality of wavelengths. The output of each detector and combinations of outputs of multiple detectors are associated with at least one out-of-product threshold. In addition, a color ratio is established. A controller compares the detector outputs and combination outputs with the associated out-of-product threshold(s). If any of the thresholds are satisfied, the controller compares the color ratio with an associated out-of-product threshold to verify an out-of-product event has occurred and reduce errors due to batch-to-batch variation of the product. The sensor is able to determine presence or absence of a variety of products having different color, transparency or turbidity.

REFERENCES:
patent: 3935876 (1976-02-01), Massie et al.
patent: 4105334 (1978-08-01), Halko et al.
patent: 4114144 (1978-09-01), Hyman
patent: 4312341 (1982-01-01), Zissimopoulos et al.
patent: 4344429 (1982-08-01), Gupton et al.
patent: 4366384 (1982-12-01), Jensen
patent: 4622465 (1986-11-01), Harig
patent: 4658244 (1987-04-01), Meijer
patent: 4700870 (1987-10-01), Schleicher et al.
patent: 4764166 (1988-08-01), Spani
patent: 4784643 (1988-11-01), Siretchi et al.
patent: 4829448 (1989-05-01), Balding et al.
patent: 4857050 (1989-08-01), Lentz et al.
patent: 5006110 (1991-04-01), Garrison et al.
patent: 5083862 (1992-01-01), Rusnak
patent: 5102392 (1992-04-01), Sakai et al.
patent: 5141871 (1992-08-01), Kureshy et al.
patent: 5177993 (1993-01-01), Beckman et al.
patent: 5206522 (1993-04-01), Danby et al.
patent: 5455423 (1995-10-01), Mount et al.
patent: 5616124 (1997-04-01), Hague et al.
patent: 5672887 (1997-09-01), Shaw et al.
patent: 5680111 (1997-10-01), Danby et al.
patent: 5739534 (1998-04-01), Estenson
patent: 5754767 (1998-05-01), Ruiz
patent: 6101452 (2000-08-01), Krall et al.
patent: 6111263 (2000-08-01), Wahlberg
patent: 6489896 (2002-12-01), Platt et al.
patent: 6710878 (2004-03-01), Dean et al.
patent: 6851453 (2005-02-01), Lipscomb et al.
patent: 6896159 (2005-05-01), Crisp, III et al.
patent: 6969865 (2005-11-01), Duchon
patent: 7093930 (2006-08-01), Yildirim et al.
patent: 7141037 (2006-11-01), Butterfield et al.
patent: 7153288 (2006-12-01), Duchon et al.
patent: 7163031 (2007-01-01), Graves et al.
patent: 2003/0025909 (2003-02-01), Hallstadius
patent: 2005/0195087 (2005-09-01), Thompson et al.
patent: 2005/0200848 (2005-09-01), Levine
patent: 2007/0114372 (2007-05-01), Lievois
patent: 2008/0134750 (2008-06-01), Riley et al.
patent: 1533597 (2005-05-01), None
patent: 2-038842 (1990-02-01), None
International Search and the Written Opinion, dated Aug. 26, 2009 for corresponding PCT Application No. PCT/IB2008/054134 (6 pages).
English-language abstract for JP2-038842 (Fujitsu Ltd).

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