...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 8162532 | Dynamic mixing apparatus for multi-component coatings A multi-component coating spray application system comprises: a source of a first coating component, a source of a second coating component, a dynamic mixer in fluid flow communication with the sources of the first and second coating components, wherein the dynamic ... | 04/24/2012 |
| 7931398 | Fluid blending methods utilizing either or both passive and active mixing Fluid blending apparatus and methods are provided, the blending apparatus including components accommodating both passive and/or active mixing. The apparatus for performing the methods include a main body and closure connectable to define a chamber having a fluid ou... | 04/26/2011 |
| 7575364 | Mixing device and slurrying device A cyclone type cylindrical body 10 having a part whose diameter decreases in the direction toward a lower opening from an upper opening is used, and liquid is made fall in the inside of the cylindrical body 10 while swirling and thereby accelerated to ... | 08/18/2009 |
| 7350962 | Liquid recycle inlet distributor assembly A catalytic hydrocracking reactor vessel includes enhanced components for the conversion of a hydrogen gas and fossil fuel feedstream to light liquid hydrocarbons. The reactor vessel comprises one or more of a reactor cup riser with a helical cyclonic separator cond... | 04/01/2008 |
| 7281841 | Method for mixing a liquid/liquid and/or gaseous media into a solution The invention relates to a mechanical device with no moving parts that homogeneously mixes two or more liquids or liquids and gases. It is possible with the device to totally saturate liquids with gas droplets of less than one micron. The device comprises an inlet f... | 10/16/2007 |
| 7267477 | Fluid blending utilizing either or both passive and active mixing Fluid blenders and blending methods are provided, the blending apparatus including components accommodating both passive and/or active mixing. The apparatus includes a main body and closure connectable to define a chamber having a fluid outlet. A valved fluid inlet ... | 09/11/2007 |
| 7267232 | Flotation device and method of froth flotation An apparatus for froth flotation including a flotation vessel including a side wall and a bottom wall that includes a fluid drain, and a mixing eductor inside the vessel disposed to impart net rotational force to contents of the vessel about an axis; and a method of... | 09/11/2007 |
| 7229207 | Method for gel hydration system A hydration apparatus for use with a hydration tank. The hydration apparatus disperses incoming gel into existing gel in the hydration tank to increase the hydration time of the incoming gel. The hydration apparatus includes flow conduits communicated with gel inlet... | 06/12/2007 |
| 7175337 | Method and apparatus for mixing pulverous material with liquid Liquid is supplied within a substantially vertical mixing chamber in a substantially tangential manner from a chamber top section, such that the liquid is deflected for rotatory motion against a chamber wall while advancing, in response to a pressure difference, dow... | 02/13/2007 |
| 7150558 | Device for producing emulsions, suspensions and the like A device for producing emulsions, suspensions and the like of at least two media has a substantially tubular reservoir provided with a first inlet at one axial end so that a first medium is supplied substantially in an axial direction, a second inlet for a second me... | 12/19/2006 |
| 7147361 | Methods for injecting dry bulk amendments for water and soil treatment The present invention includes methods for introducing a dry material into a fluid stream in a way that ensures a predictable, highly accurate and consistent application of the material. The invention applies variable amounts of dry material regardless of whether th... | 12/12/2006 |
| 7104328 | Method and apparatus for hydrating a gel for use in a subterranean well The present invention relates to a method and system for hydrating a gel for treating a wellbore penetrating a subterranean formation. The method includes directing a base fluid through an inlet into a mixer having an inner chamber housing a plurality of impellors e... | 09/12/2006 |
| 7097347 | Static mixer and process for mixing at least two fluids A novel mixing apparatus and process for mixing at least two fluids are disclosed. Excellent mixing and superior pressure drop characteristics are achieved in a device comprising at least two supply channels to feed a mixing chamber and create a vortex. The alignmen... | 08/29/2006 |
| 7048432 | Method and apparatus for hydrating a gel for use in a subterranean formation The present invention relates to a method and system for hydrating a gel for treating a wellbore penetrating a subterranean formation. The method includes directing a base fluid through an inlet into a mixer having an inner chamber housing a plurality of impellers e... | 05/23/2006 |
| 7021163 | Apparatus and method for concurrently monitoring active release and physical appearance of solid dosage form pharmaceuticals An apparatus and method for monitoring the dissolution properties of a solid dosage form pharmaceutical or other material. The apparatus includes a hollow dissolution chamber for supporting the dosage form and subjecting it to a dissolution liquid so that the dosage... | 04/04/2006 |
| 6935769 | Apparatus for production of striated, laminated lipid-based confections A method of manufacturing multi-layered, laminated, lipid-based sweet confections comprises tempering the lipid-based formulation for each layer, and depositing them separately onto a moving conveyor belt, which is passed through a cooling tunnel between the station... | 08/30/2005 |
| 6811299 | Hot coffee mixing device for a coffee maker The hot coffee mixing device comprises one embodiment having a hollow cylindrical tube with a bottom end with liquid outlet(s) thereon which rests upon the bottom surface of the carafe when in use. The top end of the device has a liquid inlet which is located in clo... | 11/02/2004 |
| 6796704 | Apparatus and method for mixing components with a venturi arrangement An eductor mixing device (10) has a main body or housing (28) of a generally cylindrical shape and an inner tube (42) for one component to be mixed with a liquid is mounted in main body (28) with a vortex chamber (56) formed in an ... | 09/28/2004 |
| 6767007 | Direct injection contact apparatus for severe services A direct injection contacting apparatus for contacting a first fluid with a second fluid which facilitates heat and mass transfer operations. ... | 07/27/2004 |
| 6758591 | Mixing of materials in an integrated circuit manufacturing equipment In one embodiment, a mixing device includes a nozzle that is disposed tangent to a wall of a chamber. Gas flowing from the nozzle rotates in the chamber forming a vortex. Another gas may be flown near a middle portion of the chamber, thereby uniformly mixing the two... | 07/06/2004 |
| 6601986 | Fluid mixing apparatus A static mixer comprises a mixing chamber with an inlet mixing module, fluids to be mixed being fed into the module to undergo swirling and jet collision, at least one intermediate mixing module connected to the inlet mixing module and provided with means... | 08/05/2003 |
| 6361202 | Static mixer for a viscous liquid A static mixer for a viscous liquid for use in a chemical mechanical polishing process is provided. The static mixer is constructed of an elongated cylindrical tank, an elongated cylindrical mixing sleeve having a multiplicity of mixing apertures therethr... | 03/26/2002 |
| 6283626 | Multiphase mixing apparatus using acoustic resonance A multiphase mixing apparatus using acoustic resonance. The apparatus can induce a pressure difference between fluids to be mixed so that a resonance and an acoustic energy are generated, thereby shattering the fluids and effectively mixing them. The shat... | 09/04/2001 |
| 6109778 | Apparatus for homogeneous mixing of a solution with tangential jet outlets An apparatus and method for homogeneous mixing and delivery of a solution, such as a colloidal suspension, the apparatus comprising a holding vessel for holding a solution body, a jet mixing device situated coplanar with a solution level in the holding ve... | 08/29/2000 |
| 6045255 | Prewetting mixer A prewetting apparatus for mixing dry material with a liquid before mixing. The wetting apparatus has a cylindrical upper chamber mounted above a lower mixing chamber. The lower mixing chamber has a conic surface with an outlet below. Pressurized liquid i... | 04/04/2000 |
| 6019497 | Mixing The invention relates to the mixing of a gas with a liquid. The apparatus has a mixing space (5) between two surfaces of revolution one inside the other, into which space the liquid and the gas are fed tangentially so that the mixture comes into a rotary ... | 02/01/2000 |
| 5996480 | Apparatus for roasting coffee beans An improved apparatus for roasting raw coffee beans includes a main housing (10) having an air inlet (24). A blower assembly (18,20,22) is disposed within the housing (10) and is in fluid communication with the inlet (24). The blower assembly has a discha... | 12/07/1999 |
| 5984519 | Fine particle producing devices In a fine particle producing device, particles of a substance contained in a fluid are caused to collide with each other under extremely high pressure, whereby the particles are emulsified, dispersed or reduced to finer particles in the fluid in an instan... | 11/16/1999 |
| 5806976 | high-speed fluid mixing device A device for uniformly and virtually instantaneously mixing at least two fluids, comprising at least two feed channels each of which is shaped and sized so that it produces flat fluid streams, whereby a uniform mixture may be achieved virtually instantane... | 09/15/1998 |
| 5705060 | Vessel for mixing or separating flowing media A vessel for mixing flowing media or for extracting heavy constituents from flowing media generates a natural vortex in the media flowing in the vessel. The vessel cross-section has at least one increase in cross-sectional area within the region of the ge... | 01/06/1998 |
| 5426137 | Method for continuously mixing fluids Apparatus and method of hydrating a particulated polymer and producing a well treatment gel includes a mixer for spraying the polymer with water at a substantially constant water velocity and at a substantially constant water spray pattern at all flow rat... | 06/20/1995 |
| 5423245 | Milk foaming device A milk foaming device for emulsifying steam, milk and air to produce foamed milk. The milk foaming device includes an ingredient combining assembly for combining the steam, milk and air connected to a swirl chamber for blending the ingredients. A discharg... | 06/13/1995 |
| 5399293 | Emulsion formation system and mixing device A method for preparing oil in water HIPR emulsions includes the steps of providing a Newtonian liquid including a mixture of a viscous hydrocarbon, an emulsifying additive and water; subjecting the Newtonian liquid to a first shear force whereby a substan... | 03/21/1995 |
| 5393502 | Solubilizing apparatus A solubilizing apparatus includes a fluid permeable sleeve having opposed openings therein wherein a spray nozzle is in flow communication with one opening and a second opening is disposed to receive solids. The spray nozzle is designed to spray a fluid i... | 02/28/1995 |
| 5382411 | Apparatus and method for continuously mixing fluids Apparatus and method of hydrating a particulated polymer and producing a well treatment gel includes a mixer for spraying the polymer with water at a substantially constant water velocity and at a substantially constant water spray pattern at all flow rat... | 01/17/1995 |
| 5326165 | Mixing apparatus Disclosed is a unit volume mixing apparatus for reconstituting a one or more component concentrated media in an influent stream. Mixing is facilitated by a water-driven mixing vortex. The effluent fluid stream is filtered, sterilized and delivered to a st... | 07/05/1994 |
| 5326166 | Mixing apparatus Disclosed is a unit volume mixing apparatus for reconstituting a one or more component concentrated media in an influent stream. Mixing is facilitated by a water-driven mixing vortex. The effluent fluid stream is filtered, sterilized and delivered to a st... | 07/05/1994 |
| 5265520 | Automatic machine for dispensing black coffee, white coffee, and the like A machine for dispensing black coffee and white coffee of the cappuccino type, comprises a single housing containing both a coffee dispenser and a steam generator. A milk dispensing device having an emulsifier is connected in cantilever fashion to the hou... | 11/30/1993 |
| 5190374 | Method and apparatus for continuously mixing well treatment fluids An apparatus and method for continuously mixing well treatment fluids, such as fracturing gels and the like. Dry polymer is fed into a metering feeder which accurately meters the rate of polymer fed into a water spraying mixer. A vent is provided so that ... | 03/02/1993 |
| 5135968 | Methods and apparatus for treating wastewater Apparatus for diluting and activating polymer molecules includes primary polymer dilution and activation apparatus, secondary dilution apparatus, and apparatus for diverting a desired amount of dilution water around the primary dilution and activation app... | 08/04/1992 |