...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7316501 | Apparatus and method for mixing dissimilar fluids An apparatus and method for fluid mixing comprising a housing having an internal chamber and a rotatable unit disposed in the chamber. Sufficient clearance is provided between the rotatable unit and the housing to create space for the mixing of the two or more dissi... | 01/08/2008 |
| 7287898 | Dynamic mixer The invention relates to a dynamic mixer for mixing at least two paste components of different volume proportions. Said mixer comprises a housing with at least two inlet openings and at least one outlet opening, a mixer element being rotatably mounted in a mixing ch... | 10/30/2007 |
| 7230037 | Method for mixing a polyol component and an isocyanate component The present invention relates to a method for the continuous mixing of at least one polyol component and at least one isocyanate component and optionally additives to form a polyurethane reaction mixture in a stirrer mixer with an axially conveying stirrer. ... | 06/12/2007 |
| 7178976 | Blender for ingredients into soft-serve freezer products An assembly is mounted to a soft serve confection freezer. It includes a set of modules in a circular array and separately replaceable in a magazine. Each module supports a container storing a dry food ingredient in particulate form, and has a motor driven product i... | 02/20/2007 |
| 7172336 | In-line mixing apparatus, process for mixing reactive chemical solutions, and process for producing microcapsules An oil phase solution injected into a mixing flow path from an upstream injection inlet forms a flow from an upstream injection inlet to a discharge outlet, and a rotary blade is provided downstream of a mechanical seal. Thus, a reverse flow toward a mechanical seal... | 02/06/2007 |
| 6783271 | Rotary dispergator, method of producing food products with the use thereof and food products produced by this method A rotary dispergator comprises a rotor (4) set on a shaft (5) of a stator (2) having a coaxial row of teeth (7) and an outer concentric row of straightening blades (8), encompassing the rotor (4) from the outside, the width ... | 08/31/2004 |
| 6679623 | Apparatus for agitating liquid hardener used for improving soft ground Disclosed is an apparatus for agitating a liquid hardener used for improving soft ground. The apparatus comprises a storage tank section formed with an introduction part and having storage tanks in which mixing impellers are arranged, and transparent indi... | 01/20/2004 |
| 6637926 | Fluid mixing device and fluid injection valve for use therewith A fluid mixing device, for the continuous mixing of two or more fluids, having a mixing chamber which has fluid contact surfaces defining an internal chamber region, a fluid inlet, for feeding fluid into the chamber region, a fluid outlet, for feeding flu... | 10/28/2003 |
| 6488402 | Steam injector and tank mixer A device for the injection and mixing of steam into a tank containing a fluid such as water. A primary steam conduit receives steam and discharges it into a plurality of secondary steam conduits. The primary steam conduit is provided with at least one mix... | 12/03/2002 |
| 6357905 | Apparatus for the blending of materials An apparatus and method for blending dry comminuted materials which is particularly effective for comminuted materials having disparate physical properties such as density and particle size. The dry blending apparatus includes a substantially upright wall... | 03/19/2002 |
| 6218466 | Method for the continuous preparation of liquid silicone rubber base A method is provided that can very rapidly produce a liquid silicone rubber base in which even microfine electrically conductive filler with specific surface of at least 0.5 m2 /g will be homogeneously dispersed in liquid organopolysiloxane wit... | 04/17/2001 |
| 6042792 | Apparatus for preparing a solid phase microparticulate composition Described are controlled, time-release microparticulate active and bioactive compositions (including perfuming compositions) for targeted delivery to services such as skin, hair and fabric and the environment proximate thereto, where the active and bioact... | 03/28/2000 |
| 6036355 | Reactor mixing assembly A continuous dynamic mixing assembly includes a mixing chamber having an inner wall which is generally symmetrical about a central axis. At least one first fluid inlet introduces first fluid material into the mixing chamber. At least one second fluid inle... | 03/14/2000 |
| 6004025 | Automated liquid manufacturing system A method for continuously preparing a medium formulation mixes a diluent with a plurality of chemically incompatible concentrate solutions in such a manner that none of the ingredients of the concentrate solutions chemically react in an adverse manner The... | 12/21/1999 |
| 5834539 | Multiple phase emulsions in burner fuel, combustion, emulsion and explosives applications A multiple phase emulsion or gel including a water phase within at least one oil phase in which either or both of the phases contains one or more chemical moieties selected from a group consisting of organic compounds that have multiple hydroxide function... | 11/10/1998 |
| 5829873 | Apparatus for mixing granular fertilizer and/or lawn treatment liquid in water An apparatus is provided for mixing granular fertilizer and/or a liquid insecticide or other treatment liquid in water in an upstanding tank having an opening for its water supply which is piped to the tank above a porous strainer to an area in the upstan... | 11/03/1998 |
| 5782556 | Apparatus for quickly making multiple-phase microemulsion fuel oil An apparatus for quickly making multiple-phase microemulsion fuel including: a primary mixer for primarily mixing water, catalyst, emulsifying agent, stabilizer and little quantity of oil in the primary mixer for producing oil-in-water phase mixing liquid... | 07/21/1998 |
| 5590961 | Method for injecting a first fluid into a second fluid and an apparatus for carrying out the method In injection of steam, gas or liquid into a fluid product in an injection apparatus having a substantially disc-shaped rotor (5) and having a central product inlet (10) and a peripheral product outlet (11), the injection is carried out in a limited zone (... | 01/07/1997 |
| 5540499 | Device for dispersing, suspending or emulsifying gases, liquids and/or flowable solid substances, more particularly for wetting and dispersing powders in liquids A device for dispersing, emulsifying or suspending gases, liquids or granular substances, more particularly for wetting and dispersing powders in liquids, includes a disc-shaped rotor (8) in a dispersing chamber (7), with two substance inlets (72, 76) and... | 07/30/1996 |
| 5378321 | Varying annular fluidization zone for increased mixing efficiency in a medium consistency mixer Medium consistency (e.g. about 5-18%) paper pulp is mixed with a treatment fluid by fluidizing them while subjecting them to a constantly changing shear field in radial and axial planes. This is accomplished by providing a mixer rotor having a constantly ... | 01/03/1995 |
| 5263774 | Rotor for increasing mixing efficiency in a medium consistency mixer Medium consistency (e.g. about 5-18%) paper pulp is mixed with a treatment fluid by fluidizing them while subjecting them to a constantly changing shear field in radial and axial planes. This is accomplished by providing a mixer rotor having a constantly ... | 11/23/1993 |
| 5083872 | Liquids mixing and dispensing system A liquids mixing and dispensing apparatus and method utilize a plurality of liquid supply modules to feed simultaneously charges of a plurality of admixable liquids at predetermined volume flow rates to a mixer to form a batch of a mixture of the liquids,... | 01/28/1992 |
| 4666669 | Apparatus for pulsed flow, balanced double jet precipitation A pulsed flow, balanced double jet precipitation apparatus and process are disclosed in which a silver salt solution and a halide salt solution are mixed in a primary mixing zone defined within a reaction vessel having a gelatin solution therein and in wh... | 05/19/1987 |
| 4492478 | Method and apparatus for applying mortar or concrete One of ingredients of green concrete are supplied to a rotary disc through a central tube by a pump or low pressure air and the other ingredient is supplied to the rotary disc from a hopper by a screw conveyor. These ingredients are mixed together on a ro... | 01/08/1985 |
| 4482254 | Fluid mixing apparatus and method An apparatus and method for mixing two or more distinct fluids is disclosed, and which includes a housing, a sleeve fixedly mounted in the housing and defining a mixing chamber, and a rotatable mixing head having a grooved outer surface disposed in the mi... | 11/13/1984 |
| 4391711 | Method of, and apparatus for, effecting liquid-liquid contact An apparatus and method for effecting liquid-liquid contact between an aqueous liquid medium and an organic liquid medium comprises a chamber for holding a body of each of the media having an agitator therein. One or both of the media are supplied to a mi... | 07/05/1983 |
| 4391529 | Apparatus for mixing and degassing components of synthetic resins, particularly thermo-setting synthetic resins An apparatus for mixing and degassing components of synthetic resins includes an evacuatable, cylindrical, downwardly tapering container, a worm conveyor centrally, rotatably supported in the container and a drive mechanism therefor, a cylindrical guide t... | 07/05/1983 |
| 4334784 | Method for processing thermoplastics or thermosetting plastics A method of processing plastic material uses a device which operates in a batchwise fashion. The device includes a cylindrical container having a shaft disposed coaxially therein. The shaft is provided with mixing tools and can be driven at high speed. Ma... | 06/15/1982 |
| 4112517 | Mixing apparatus Apparatus for homogeneously mixing relative dry particulate material with liquid material comprising a spinning disc for receiving and forming by centrifugal action a continuous annular free falling curtain layer of particulate material and a lower spinni... | 09/05/1978 |