Means Demonstrating Physical Property (e.g., Osmotic Pressure, Solubility, Etc.) Of Substance Patents (Class 434/283)
  • Patent number: 9495742
    Abstract: A device and method for sorting objects immersed in a flowing medium are described. An example device comprises a holographic imaging unit comprising a plurality of holographic imaging elements, a fluid handling unit comprising a plurality of microfluidic channels for conducting flowing medium along a corresponding holographic imaging element and a microfluidic switch arranged downstream of an imaging region in the microfluidic channel for directing each object in the flowing medium into a one of a plurality of outlets. The example device also comprises a processing unit configured to determine real-time characterizations of holographic diffraction images obtained for each of the moving objects, with each real-time characterization accounting for at least one predetermined object-type signature. The processing unit is further adapted for controlling the microfluidic switches in response to the real-time characterizations.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: November 15, 2016
    Assignees: IMEC, Katholieke Universiteit Leuven, KU LEUVEN R&D
    Inventors: Liesbet Lagae, Peter Peumans, Kris Verstreken, Dries Vercruysse, Chengxun Liu
  • Patent number: 8118635
    Abstract: A mechanical toy having two enclosed chambers, one positioned above the other, connected by a tube; a vaporizing medium contained within the enclosed chambers and tube; means for rotationally supporting the tube and chambers; means for exciting the vaporizing medium within the lower chamber to create an increase in vapor pressure within the lower chamber relative to the upper chamber that exerts force upon the vaporizing medium within the lower chamber to communicate the vaporizing medium through the tube into the upper chamber allowing gravity to act upon the upper chamber when a sufficient amount of the vaporizing medium has collected within the upper chamber pulling the upper chamber downward around the means of rotational support.
    Type: Grant
    Filed: October 14, 2007
    Date of Patent: February 21, 2012
    Inventor: Edward Doran
  • Patent number: 7905728
    Abstract: A device and method for generating a visible vortex for display or educational purposes. A container houses a two-phase fluidic system of a primary fluid, such as water, and a secondary fluid such as silicone fluid carrying a powder which has no affinity for the primary fluid. The two-phase fluidic system may be stirred using a stir bar or pump to generate the vortex.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: March 15, 2011
    Assignee: Twister Tube, Ltd.
    Inventor: Robert P. Piontek
  • Patent number: 7686667
    Abstract: A mechanical toy having two enclosed chambers, one positioned above the other, connected by a tube; a vaporizing medium contained within the enclosed chambers and tube; an object within each chamber to displace the vaporizing medium; a rotational shaft centrally connected to the tube and chambers; support arms connected to ends of the rotational shaft at bearing points; means for exciting the vaporizing medium within the lower chamber to create an increase in vapor pressure within the lower chamber relative to the upper chamber that exerts force upon the vaporizing medium within the lower chamber to communicate the vaporizing medium through the tube into the upper chamber, displaced by the object within the upper chamber creating an imbalance, allowing gravity to act upon the upper chamber when a sufficient amount of the vaporizing medium has collected within the upper chamber pulling the upper chamber downward around the rotational shaft in the direction of the imbalance.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: March 30, 2010
    Inventor: Edward Doran
  • Patent number: 7344378
    Abstract: In the scientific phenomena evaluation device of the present invention, a plurality of elongated grooves each having a cross-sectional area of not more than 1 mm2 are formed, an end of each of the plurality of flow passages joins in at one meeting point and furthermore, a liquid absorption device is provided. Therefore, it is possible to qualitatively observe scientific phenomena, such as the dispersion phenomena of molecules. Also, accuracies sufficient for experiencing high technologies, for example, various phenomena such as the diffusion phenomenon of a liquid, heat transfer phenomenon of a liquid, mixing phenomenon of liquids and chemical reactions of a liquid that occur in this fine flow passage are obtained, consumption of chemical agents and the like is small and environmental burdens are small. Therefore, this evaluation device of scientific phenomena is appropriate as an educational tool for scientific experiments.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: March 18, 2008
    Assignee: FUJIFILM Corporation
    Inventors: Yasunori Ichikawa, Tomohide Ueyama, Fumiko Shiraishi, Tetsuo Kurahashi
  • Patent number: 7316569
    Abstract: An evaluation apparatus of scientific phenomena, including: a base plate of a plate-like body on whose surface is formed an elongated groove having a transversely cross-sectional area of not more than 1 mm2; and a cover plate that is disposed on a surface of the base plate in close contact therewith and forms a fine flow passage on the base plate by covering the elongated groove, wherein scientific phenomena in the fine flow passage can be visually recognized.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: January 8, 2008
    Assignee: FUJIFILM Corporation
    Inventors: Yasunori Ichikawa, Tomohide Ueyama, Fumiko Shiraishi, Seiji Sugiyama, Teruo Fujii
  • Patent number: 7210937
    Abstract: The objective of the present invention is to provide a method and apparatus for education and training in microfluidic technology. The microfluidic system training apparatus includes multiple flow configurations of microfluidic elements all configured and fabricated on a single plate, a microscope and a camera system connected to a monitor or computer, and a computer based control and data acquisition system as a means of controlling and measuring the flow properties. The hands-on experiments with the apparatus of the present invention are designed to provide students with training of varying complexity beginning with basic microfluidic flow system studies to the development of an advanced specific microfluidic flow process or protocol utilizing a variety of the conventional microfluidic elements.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: May 1, 2007
    Inventor: Surya Raghu
  • Patent number: 7150670
    Abstract: A mechanical toy having two enclosed chambers, one positioned above the other, connected by a tube; a vaporizing medium contained within the enclosed chambers and tube; means for rotationally supporting the tube and chambers; means for exciting the vaporizing medium within the lower chamber to create an increase in vapor pressure within the lower chamber relative to the upper chamber that exerts force upon the vaporizing medium within the lower chamber to communicate the vaporizing medium through the tube into the upper chamber allowing gravity to act upon the upper chamber when a sufficient amount of the vaporizing medium has collected within the upper chamber pulling the upper chamber downward around the means of rotational support.
    Type: Grant
    Filed: January 8, 2005
    Date of Patent: December 19, 2006
    Inventor: Edward Doran
  • Patent number: 6769916
    Abstract: This invention is intended to be used as an Educational demonstration for college level instruction. The invention allows students to visualize the phenomenon of activation energy. Rearrange the unit to demonstrate the SN2 reaction and the potential energy of a covalent bond as a function of internuclear distance. The demonstration can be used as a visual aid to enhance the students understanding of the material presented during the instructors lecture time, or the demonstration can be used directly by the student as a laboratory exercise. The student will gain important graphing skills by using this invention to plot the activation energy curve. The device is made with the most powerful ring magnets commercially available. The size and shape of the ring magnets produces the unusual effects that characterize this invention. An acrylic rod, containing a metric scale for easy measurement, aligns the magnets.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: August 3, 2004
    Inventors: Robert Arthur Montgomery, Christopher Gordon Snow
  • Patent number: 6737274
    Abstract: A comparator for use with a time-temperature indicator wherein the time-temperature indicator includes an active portion having an initial color and which undergoes chemical changes as time elapses and at a rate related to the temperature of the surrounding environment and wherein the chemical changes produce changes in the color of the active portion. The comparator comprises a substantially planar support member, and a plurality of comparator stages located on the support member. Each comparator stage comprises a first portion having a reference color and a second portion having a predetermined color that is the same as one of the colors to which the active portion of the time-temperature indicator changes.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: May 18, 2004
    Assignee: United States of America as represented by the Secretary of the Army
    Inventor: Bruce Butler Wright
  • Patent number: 6027344
    Abstract: A training kit for training individuals to recognize one or more hazardous materials including a housing having dividing means within the housing dividing the housing into a plurality of compartments; each compartment having a set of container receiving portions; and container means in each of the container receiving portions of each of the compartments; indicia means associated with each compartment having identifying information, each container means in a compartment containing a simulant having one or more characteristics, the characteristics being perceptible to the individual; wherein the simulant mimics one or more characteristics of the hazardous material and the simulant is less hazardous than the hazardous material.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: February 22, 2000
    Assignee: Battelle Memorial Institute
    Inventors: Keith J. Johanns, Gregory W. Bowen, Robert E. Wyant
  • Patent number: 5876212
    Abstract: A method and apparatus of teaching mathematical problem solving includes using a series of containers, each consisting of an inherent problem requiring the use of mathematical skills for solution. The series of containers meets all conditions for the teaching of mathematics as recommended by the National Council of Teachers of Mathematics in their 1989 document "The Standards". The complete solution satisfying "The Standards" for each container ordinarily takes a period of days. A kit consisting of such containers is disclosed.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: March 2, 1999
    Assignee: Safe-T Products, Inc.
    Inventor: Paul G. Hartung
  • Patent number: 5742290
    Abstract: A function processing system processes functions to make a three-dimensional display on a screen of a display means by connecting a plurality of lattice points of a space coordinate in a three-dimensional space region. The function processing system includes a computing system for computing a function value at each of the lattice points by a multivariable function having the space coordinate as an independent variable, where the computing system replaces the multivariable function by a product of a predetermined number of single variable functions and computing each of the single variable functions in advance so that the multivariable function is computed based on function values of each of the single variable functions, and a storage unit for storing the function values of the single variable functions which are computed in advance by the computing system. The computing system reads the stored function values of the single variable functions from the storage unit when computing the multivariable function.
    Type: Grant
    Filed: September 18, 1996
    Date of Patent: April 21, 1998
    Assignee: Fujitsu Limited
    Inventors: Tomoaki Hayano, Azuma Matsuura
  • Patent number: 5720618
    Abstract: The present invention relates to a vacuum teaching device (10) comprising: a housing (12) which comprises a housing top (12A) having a housing top opening (12AA) therein, a housing bottom (12B) and a housing middle (12C) having a housing middle neck piece (12CA) pneumatically sealed thereon. The housing middle neck piece (12CA) has a housing middle neck piece opening (12CAA) therein. A housing top cap (12D) is removably and pneumatically fastenable to the housing top (12A). A balloon (14) is positioned within a housing inside (12E) of the housing (12). The balloon (14) comprises a balloon opening (14A) which is stretched overlapping the housing middle neck piece (12CA) and housing middle neck piece opening (12CAA) forming a pneumatic seal therebetween. When air pressure is reduced within the housing inside (12E) by vacuuming air through the housing top opening (12AA), the balloon (14) automatically inflates.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: February 24, 1998
    Inventor: Darlene Scarpetti
  • Patent number: 5299938
    Abstract: An apparatus for illustrating the operation of an Archimedes screw. Two passages (8,9) are defined which together form a single closed loop passageway. A first passage (8) is generally linear and a second passage (9) is of helical form and is connected at its ends to the ends of the first passage. The walls of the two passages are transparent such that the movement of fluid (10) can be clearly seen. The first and second passages are arranged such that if the first passage (8) is positioned at a predetermined inclination to the vertical fluid can be transferred through the second passage (9) from the lower to the upper end of the first passage by rotating the apparatus about an axis extending parallel to the length of the first passage. The second passage (9) may be in the form of a helical tube wound around the outside of a straight tube defining the first passage (8) .
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: April 5, 1994
    Inventor: Barry S. Waltho
  • Patent number: 5090643
    Abstract: An artificial gravity generation system consisting of at least one pair of high-voltage electrodes. A plurality of electrodes of alternating polarity may be arranged in a grid pattern to form an artificial gravity mat which may be used in spacecraft. The system may also be used outside a spacecraft to retrieve floating objects.
    Type: Grant
    Filed: March 15, 1990
    Date of Patent: February 25, 1992
    Inventor: Morton F. Spears
  • Patent number: 5055259
    Abstract: This invention provides a blood typing training kit comprising a red blood cell model and an antiserum model with no use of human blood in experiments for blood agglutination and in learning of blood typing, the red blood cell model being an easily available granule which can be suspended in water such as agarose bead, Sepharose, cellulose, Sephadex, cellulofine, alginate, tamarind polysaccharide, gelatin, xanthan gum, etc. or the saccharide- or protein-bound form thereof and the antiserum model being lectin, boric acid-containing liquid or immunoglobulin G.
    Type: Grant
    Filed: July 24, 1989
    Date of Patent: October 8, 1991
    Assignee: Sanraku Incorporated
    Inventors: Tsutomu Inoue, Kazuhiko Okamura, Naoto Kawamura, Hiroshi Tone, Rokuro Okamoto