Optics: measuring and testing – Plural test
Reexamination Certificate
2008-03-04
2008-03-04
Evans, F. L. (Department: 2877)
Optics: measuring and testing
Plural test
C356S417000, C356S436000, C250S458100, C250S339120, C250S343000
Reexamination Certificate
active
10492660
ABSTRACT:
A series of optical spectral sensors is based on a combination of solid-state sources (illumination) and detectors housed within an integrated package that includes the interfacing optics and acquisition and processing electronics. The focus is on low cost and the fabrication of the sensor is based on techniques that favor mass production. Materials and components are selected to support low-cost, high volume manufacturing of the sensors. Spectral selectivity is provided by the solid-state source(s) thereby eliminating the need for expensive spectral selection components. The spectral response covers the range from the visible (400 nm) to the mid-infrared (25,000 nm/25.0 μm), as defined by the availability of suitable low-cost solid-state source devices. A refractive optical system is employed, primarily in an internal reflection mode, allowing a selection of sample handling tools, including, but not restricted to internal reflectance and transmittance. A secondary channel allowing for light scattering or fluorescence methods is an option. The targeted applications of the sensing devices are for lubricants and functional fluids in the heavy equipment, automotive and transportation industries. A source reference channel is included to provide measurement stability and temperature compensation.
REFERENCES:
patent: 2649011 (1953-08-01), Black
patent: 3364812 (1968-01-01), Ewing
patent: 3370502 (1968-02-01), Wilks, Jr.
patent: 3460893 (1969-08-01), Wilks, Jr.
patent: 3508830 (1970-04-01), Hopkins et al.
patent: 3578865 (1971-05-01), Traver
patent: 3619072 (1971-11-01), O'Hara et al.
patent: 3665201 (1972-05-01), Shea et al.
patent: 3713743 (1973-01-01), Simms
patent: 3714444 (1973-01-01), Carr et al.
patent: 3734629 (1973-05-01), Griffiths et al.
patent: 3790279 (1974-02-01), Skala
patent: 3876307 (1975-04-01), Skala
patent: 3892485 (1975-07-01), Merritt et al.
patent: 4441971 (1984-04-01), Ishiguro et al.
patent: 4570069 (1986-02-01), Gager
patent: 4595833 (1986-06-01), Sting
patent: 4649711 (1987-03-01), Sibley et al.
patent: 4699509 (1987-10-01), Kamiya et al.
patent: 4701838 (1987-10-01), Swinkels et al.
patent: 4975581 (1990-12-01), Robinson et al.
patent: 5000569 (1991-03-01), Nylund
patent: 5021665 (1991-06-01), Ames
patent: 5049742 (1991-09-01), Hosonuma et al.
patent: 5050946 (1991-09-01), Hathaway et al.
patent: 5051551 (1991-09-01), Doyle
patent: 5071527 (1991-12-01), Kauffman
patent: 5076397 (1991-12-01), Yamada
patent: 5077477 (1991-12-01), Stroman et al.
patent: 5089780 (1992-02-01), Megerle
patent: 5125742 (1992-06-01), Wilks, Jr.
patent: 5185640 (1993-02-01), Wilks, Jr. et al.
patent: 5196898 (1993-03-01), Tamura et al.
patent: 5278426 (1994-01-01), Barbier
patent: 5296843 (1994-03-01), Wohlstein et al.
patent: 5407830 (1995-04-01), Altman et al.
patent: 5438420 (1995-08-01), Harwick et al.
patent: 5440126 (1995-08-01), Kemsley
patent: 5442435 (1995-08-01), Cooper et al.
patent: 5452083 (1995-09-01), Wilks, Jr.
patent: 5534708 (1996-07-01), Ellinger et al.
patent: 5548393 (1996-08-01), Nozawa et al.
patent: 5608518 (1997-03-01), Wilks, Jr.
patent: 5691701 (1997-11-01), Wohlstein et al.
patent: 5739916 (1998-04-01), Englehaupt
patent: 5741961 (1998-04-01), Martin et al.
patent: 5790246 (1998-08-01), Kuhnell et al.
patent: 5798452 (1998-08-01), Martin et al.
patent: 5889683 (1999-03-01), Ismail et al.
patent: 5939727 (1999-08-01), Sommer
patent: 6040578 (2000-03-01), Malin et al.
patent: 6043505 (2000-03-01), Ames et al.
patent: 6049088 (2000-04-01), Harding
patent: 6091484 (2000-07-01), Venica et al.
patent: 6118520 (2000-09-01), Harner
patent: 6151108 (2000-11-01), Kwon et al.
patent: 6331704 (2001-12-01), Owen
patent: 6388251 (2002-05-01), Papanyan
patent: 6420708 (2002-07-01), Wilks, Jr. et al.
patent: 6690452 (2004-02-01), Wilks, Jr.
patent: 2002/0069021 (2002-06-01), Takezawa et al.
patent: 0206433 (1986-12-01), None
patent: 0797091 (1997-09-01), None
patent: 0836092 (1998-04-01), None
patent: 2346691 (2000-08-01), None
patent: 63266342 (1966-11-01), None
patent: 57142546 (1982-09-01), None
patent: 60111946 (1985-06-01), None
patent: 08201278 (1986-08-01), None
patent: 61213749 (1986-09-01), None
patent: 02259548 (1990-10-01), None
patent: 03-111741 (1991-05-01), None
patent: 3142349 (1991-06-01), None
patent: 07280720 (1995-10-01), None
patent: 08-062207 (1996-03-01), None
patent: 0150054 (1998-12-01), None
patent: WO88/03109 (1988-03-01), None
Coates et al, The Analytical and Satistical Evaluation of Infrared Spectroscopic Data from Used Diesel Lubricants, SAE Fuels and Lubricants Meeting, Oct., 1984.
A. M. Toms, Preliminary Report on the Evaluation of FTIR for Lubricant Condit and Contamination determination in Support of Machinary Condition Monitoring. I. Synthetic Lubticants, Joint Oil Analysis Program (approx. 1999).
Coates et al., A Rapid Field-Based method for the Determination of Soot in Used Diesel Oils, P/PM Technology, vol. 9, No. 6, Dec., 1996 pp. 30-34.
D.L. Wooton, Applications of Spectroscopy in the Fuels and Lubrication Industry Applied Spectroscopy Reviews, vol. 36, No. 4, pp. 315-332 (2001).
LEM® Safeguards Against Diesel Fuel, Analyst, Inc., (1995 to 2000 and Oct. 2002) 4 pages total.
Standard Practice for Condition Monitoring of Used Lubricant using Fourier Transform Infrared (FT-IR) Spectrometry, ASTM Draft Method (Oct. 4, 2002).
Aker David
Evans F. L.
Sentelligence, Inc.
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