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3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7390420 | Method and equipment for compressing a dispersion in liquid-liquid extraction The invention relates to a method for controlling and compressing a dispersion formed in the mixing stage of liquid-liquid extraction. The compression of the dispersion is achieved by reducing the cross-section of the separation section in the direction of flow and ... | 06/24/2008 |
| 7319592 | Recyclable protective cover for a heat-conductive medium A protective cover with a heat-conductive medium of a heat sink apparatus is provided, which is used to cover and protect the heat-conductive medium placed at the bottom surface of a base of the heat sink apparatus. It includes a sheet-like board, an elastic wall, a... | 01/15/2008 |
| 7138095 | Liquid—liquid battery mounted extractors This liquid—liquid extractor essentially comprises: individual extractors (1), battery mounted, sliding or set along rails (2) and able to consist of separators of two liquid phases by centrifuging; intermediate parts (3) connecting the indivi... | 11/21/2006 |
| 7068512 | Heat dissipation device incorporating with protective cover A heat dissipation device includes a core including a base with a bottom face and a top face and a body extending from the top face of the base, thermally conductive medium spread on the bottom face fo the base, a plurality of fin stacked along the body above the ba... | 06/27/2006 |
| 7018587 | Mixing and pouring apparatus and vessel therefor A mixing and pouring apparatus for computer controlled processing of mixing and pouring operations includes a rotatable arm capable of holding vessels therein, the arm rotatable at programmable speeds and time lengths to perform automated moving and pouring processe... | 03/28/2006 |
| 7011708 | Heat transfer device A device includes an agitation tank, a liquid circulation means for circulating a liquid along a tank wall of the agitation tank, and at least one auxiliary heat transfer means provided inside the agitation tank, wherein the auxiliary heat transfer means is constant... | 03/14/2006 |
| 6945312 | Thermal interface material and methods for assembling and operating devices using such material A tape for providing thermal contact between an energy generating device and a energy dissipating device is disclosed. The tape comprises a thermally conductive material configured to be adhesively coupled to one of the energy devices, and a tab. The first portion o... | 09/20/2005 |
| 6935420 | Heat dissipation assembly A heat dissipation assembly includes a heat sink having a base and a plurality of heat dissipation fins disposed on the base, thermal interface material applied to the base opposing the fins, and a cap covering the base. The cap includes a body which shields the the... | 08/30/2005 |
| 6589422 | Apparatus and method for extracting biomass Discloses is apparatus for extracting biomass from a biomass supply, including a hollow vessel in which is established a countercurrent flow of biomass in the form of liquid or particles of biomass entrained in a liquid and solvent. The vessel includes an... | 07/08/2003 |
| 6569339 | Method for reducing the size of solvent extraction process steps and cell for using in the solvent extraction process A method and cell for reducing the size of a solvent extraction process in which a series of cells are arranged in an extraction process. The process includes the use of conventional settlers at the beginning and at the end of the extraction process with ... | 05/27/2003 |
| 6458332 | Crystallization apparatus and crystallization method The invention provides a crystallization apparatus that includes an agitation tank, a liquid circulation means for circulating a liquid or a slurry along a wall of the agitation tank, and one or more temperature difference creation means capable of creati... | 10/01/2002 |
| 6432370 | Method and apparatus for controllably conducting a solution, obtained from liquid-liquid extraction of two solutions and mixed into dispersion, to a wide settler In a method according to the invention, a dispersion coming from a mixer part is conducted from downwards to the liquid part of the settler, into the middle part of the feed end, wherefrom it is set to be distributed to inside the settler part, in a close... | 08/13/2002 |
| 6315966 | Crystallization process and device Continuously operated, two-part crystallizer which is particularly suitable for the resolution of racemic mixtures, and process for separating solid mixtures which are difficult to separate, in particular racemates.... | 11/13/2001 |
| 6251660 | Devices and methods for detecting target molecules in biological samples Devices and methods for detecting the presence, or absence of the presence of at least one target molecule employing a receptacle housing a reaction chamber comprised of at least one compartment containing suitable reagents for the detection of the target... | 06/26/2001 |
| 6251267 | Apparatus for supercritical fluid extraction An apparatus for supercritical extraction is disclosed herein. The apparatus includes a plurality of containers adapted to hold a different one of a corresponding plurality of samples, a first transport means for carrying the plurality of sample container... | 06/26/2001 |
| 6159368 | Multi-well microfiltration apparatus The present invention provides multi-well plates and column arrays in which samples (e.g., cell lysates containing nucleic acids of interest, such as RNA) can be analyzed and/or processed. In one embodiment, the microfiltration arrangement is a multilayer... | 12/12/2000 |
| 6080374 | Centrifugal crystallization refining apparatus An apparatus for performing centrifugal crystallization of organics, which unifies all the individual steps for the removal of impurities into a single operation. The apparatus consists of two coaxial rotors and stationary parts. A crystallizable feed sto... | 06/27/2000 |
| 6049458 | Protective cap for thermal grease of heat sink A heat sink for dissipating heat generated by a CPU, includes a metallic base, a number of heat dissipating fins projecting from the base, thermal grease spread on the base, and a protective cap enclosing the thermal grease to protect it from being contam... | 04/11/2000 |
| 6033575 | Method and apparatus for mixing/separating two non-miscible liquids The method and apparatus mixes two immiscible liquids A and O to form a dispersion and then pre-separates the dispersion into two fractions (A+o) and (O+a) in a spout. These two fractions are fed separately into a decanter with two separate compartments w... | 03/07/2000 |
| 5897917 | Pre-application of grease to heat sinks with a protective coating Heat sinks pre-coated with a layer of a material such as thermal grease are disclosed. Contamination and migration of the thermal grease is substantially reduced by covering the coated areas with a protective film that is removed prior to the assembly of ... | 04/27/1999 |
| 5746987 | Apparatus for physical amd chemical separation and reaction The present invention is an apparatus for separating volatile from nonvolatile substances, separation of volatile substances, one from the other, and for performing various chemical reactions. In particular, an apparatus which performs these functions uti... | 05/05/1998 |
| 5707592 | Method and apparatus for treatment of waste materials including nuclear contaminated materials A method and apparatus for the treatment of waste materials including nuclear contaminated materials is disclosed. The method of the invention includes the steps of: grinding the base material until the maximum grain size is 50 millimeters; drying the gro... | 01/13/1998 |
| 5641462 | Continuous solvent extraction with bottom gas injection A method and apparatus for solvent extraction where the heavy and light phases are directed counter-currently into vertical mixing zones created by high-strength gas jets injecting gas up through the liquids to create an emulsion plume between the two liq... | 06/24/1997 |
| 5628969 | Chemical separation and reaction apparatus The present invention is an apparatus for use in the separation of volatile from non-volatile substances, separation of volatile substances, one from the other, and for performing various chemical reactions and, in particular, to an apparatus which perfor... | 05/13/1997 |
| 5578201 | Apparatus for mixing liquids used in countercurrent multiphase liquid separation A reusable apparatus for multiphase, multistage countercurrent liquid separation is presented. The apparatus is particular useful in progressive multistage separation of target microorganisms from background organisms and materials with precise transfer, ... | 11/26/1996 |
| 5466419 | Split flow reactor trays for vertical staged polycondensation reactors This invention relates to a vertically disposed polymerization reactor having a series of essentially circular tray assemblies; each tray assembly having a central open vapor chimney and two split-flow paths each split-flow path containing one reverse flo... | 11/14/1995 |
| 5464590 | Reactor trays for a vertical staged polycondensation reactor This invention relates to a vertically disposed polymerization reactor having a series of essentially circular tray assemblies; each tray assembly having a central open vapor chimney and a single flow path composed of at least two loops wherein the liquid... | 11/07/1995 |
| 5374672 | Method for producing an asphalt binder emulsion which makes it possible to control the viscosity and breaking properties of the emulsion The invention relates to a method for producing an aqueous asphalt binder emulsion which makes it possible to control the viscosity and breaking properties of the emulsion.... | 12/20/1994 |
| 5266273 | Process and apparatus for forming a solution gradient and for conducting a blotting process An apparatus for conducting a blotting process comprises a support member, a first electric motor for rotating the support member about a vertical plane, a tube holder having a substantially flat surface for magnetically mounting at least one tube, a seco... | 11/30/1993 |
| 5254076 | Centrifugal pyrocontactor A method for mixing and separating immiscible liquid salts and liquid metals in a centrifugal contractor. The method includes introducing the liquids into an annular mixing zone and intensely mixing the liquids using vertical vanes attached to a rotor coo... | 10/19/1993 |
| 5254244 | Modular mixer-settler having separate stages manipulatable by telemanipulator A mixer-settler is provided which is modulatable and permits use, manipulation and maintenance within a tight, shielded enclosure using a telemanipulator. The mixer-settler is constituted by several modules (M1, M2, M3), which can be reciprocally dismantl... | 10/19/1993 |
| 5188808 | Method for mixing liquid, solids and gas and for simultaneously separating gas or gas and solids from the liquid The invention relates to a method for maintaining a continuous mixing extending throughout the transversal section of the reactor space in a liquid containing solids and gas, and for simultaneously separating gas or gas and solids from the liquid. The inv... | 02/23/1993 |
| 5184188 | Optical blood hemostatic analysis apparatus and method An apparatus and method for optically measuring the functional capacity of blood platelets and the blood clotting system. The invention includes a mechanical specimen-handling apparatus with one or more optical end-point detectors. The apparatus incubates... | 02/02/1993 |
| 5182087 | Method for mixing two liquids or liquid and solid material together, and for simultaneously separating another liquid or solid from the liquid The invention relates to a method for maintaining a continuous mixing in a liquid throughout the transversal reactor space, and for simultaneously separating from the liquid either another liquid, a solid material or possibly gas. The invention also relat... | 01/26/1993 |
| 5171539 | Apparatus for forming a continuous solution gradient An apparatus for generating a continuous solution gradient wherein solutions of differing concentrations are layered in a tube and the tube disposed at an angle with respect to the vertical and is rotated for a predetermined period of time thereby to gene... | 12/15/1992 |
| 5160623 | Apparatus and process for fluid-fluid contact A process and apparatus for effecting liquid-liquid contact in a plurality of stages between heavy and light liquid streams is provided wherein said streams are capable of undergoing mass transfer with one another or constituents in either stream are capa... | 11/03/1992 |
| 5112577 | Apparatus for removing dispersion medium in metal or ceramic molded body An apparatus for removing the dispersion medium in a metal or ceramic molded body which comprises a dispersion medium-removing vessel includes a condensing zone located in a upper part and a boiling zone located in a lower part, a separator to separater a... | 05/12/1992 |
| 5084249 | Rotary centrifugal contactor A rotary contactor (10) suitable for liquid/liquid extraction processes in a nuclear fuel reprocessing plant includes a rotor (14) with a contacting chamber (16) defined within it, the chamber being of annular shape with its radial width considerably less... | 01/28/1992 |
| 5076930 | Apparatus and process for liquid-liquid contact A process and apparatus for effecting liquid-liquid contact in a plurality of stages between heavy and light liquid streams is provided wherein said streams are capable of undergoing mass transfer with one another or constituents in either stream are capa... | 12/31/1991 |
| 4753892 | Process for forming a continuous solution gradient A process and apparatus for generating a continuous solution gradient wherein solutions of differing concentrations are layered in a tube and the tube disposed at an angle with respect to the vertical and is rotated for a predetermined period of time ther... | 06/28/1988 |
