Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Surface tension
Reexamination Certificate
2007-01-02
2007-01-02
Williams, Hezron (Department: 2856)
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Surface tension
C073S064480, C073S064510, C382S108000
Reexamination Certificate
active
10477832
ABSTRACT:
The invention relates to a method of and an apparatus for studying properties, especially physical properties of a surfactant. A fluid is introduced in the form of a sample volume in another fluid which is immiscible with said fluid so that an interface is formed between the one fluid and the other fluid, at least in a partial area of a surface of the sample volume. The sample volume is configured so as to be axially symmetrical around a given defining axis, whereby the interface is formed axially symmetrically with respect to the given defining axis. The surfactant is spread across the interface to form a surface film in the area of the interface with the surfactant. Thereupon the surface film can by studied microscopically.
REFERENCES:
patent: 2473553 (1949-06-01), Stokes
patent: 3483737 (1969-12-01), Schoettle et al.
patent: 3525255 (1970-08-01), Orr, Jr.
patent: 3881344 (1975-05-01), Jobe
patent: 3913385 (1975-10-01), Jobe
patent: 4050822 (1977-09-01), Grat
patent: 4196615 (1980-04-01), Davis
patent: 4391129 (1983-07-01), Trinh et al.
patent: 4523456 (1985-06-01), Baird et al.
patent: 4569226 (1986-02-01), Matteson
patent: 4650588 (1987-03-01), Diebold
patent: 4674322 (1987-06-01), Stangeland
patent: 4697451 (1987-10-01), Matteson
patent: 4800750 (1989-01-01), Enhorning
patent: 4874426 (1989-10-01), Honda
patent: 4942760 (1990-07-01), Almeida
patent: 4953389 (1990-09-01), Schurch
patent: 5218841 (1993-06-01), Hool
patent: 5269176 (1993-12-01), Hool
patent: 5394740 (1995-03-01), Schramm et al.
patent: 5479816 (1996-01-01), Richou et al.
patent: 5542289 (1996-08-01), Hool et al.
patent: 5615276 (1997-03-01), Lin et al.
patent: 6832506 (2004-12-01), Mason et al.
patent: WO 9216824 (1992-10-01), None
patent: WO 9423280 (1994-10-01), None
Kwok et al., “Study on the surface tensions of polymer melts using axisymmetric drop shape analysis”, Polymer Science and Engineering, May 1998, pp. 757-764.
Enhorning, G., “Pulsating Bubble Technique for Evaluating Pulmonary Surfactant”, J. Appl. Physiol. 1977, pp. 198-203, vol. 43, No. 2.
Lösche, M. et al., “Fluorescence Microscope to Observe Dynamical Processes in Monomolecular Layers at The Air/Water Interface”, Rev. Sci. Instrum., Dec. 1984, pp. 1968-1972, vol. 55, No. 12.
Malcolm, B., “The Flow and Deformation of Synthetic Polypeptide Monolayers during Compression”, Journal of Colloid and Interface Science, Apr. 1985, pp. 520-529, vol. 104, No. 2, Academic Press, Inc.
Schurch, S. et al., “A Captive Bubble Method Reproduces The In Situ Behavior of Lung Surfactant Monolayers”, J. Appl. Physiol., 1989, pp. 2389-2396, vol. 67, No. 6, The American Physiological Society.
Ulman, A., “An Introduction to Ultrathin Organic Films From Langmuir-Blodgett to Self-Assembly”, 1991, pp. 102-107, Academic Press.
Colton, R. et al., “Scanning Probe Microscopy”, Current Opinion in Chemical Biology, 1997, pp. 370-377, vol. 1, Current Biology Ltd.
Putz, G. et al., “A Spreading Technique for Forming Film in a Captive Bubble”, Biological Journal, Nov. 1998, pp. 2229-2239, vol. 75, Biological Society.
Amrein Matthias
Knebel Detlef
JPK Instruments AG
Rogers David A.
Smith Patent Office
LandOfFree
Method and apparatus to study a surfactant 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 to study a surfactant, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus to study a surfactant will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3810444