...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7311265 | Hand-held spraying apparatus having a multi-compartment liquid-holding reservoir A liquid reservoir of a hand-held, air-assisted spray apparatus is characterized by a plurality (i.e., two or more) of liquid-holding compartments. Each liquid-holding compartment is connected through an outlet port into fluid communication with the flow channel of ... | 12/25/2007 |
| 6837611 | Fluid driven agitator used in densified gas cleaning system This invention relates to a fluid driven agitator used in densified gas cleaning system, which comprises a hydraulic motor mounted to a cleaning vessel of the densified gas cleaning system, wherein the hydraulic motor comprises a fluid in-port for charging the fluid... | 01/04/2005 |
| 6488401 | Agitators for wave-making or mixing as for tanks, and pumps and filters A tank agitator connects to a low head feed and causes agitation by discharging through a port that might rotate, oscillate, or otherwise issue a pulsing stream. This agitator has a housing with a turbine plenum and an exhaust plenum. A turbine in the tur... | 12/03/2002 |
| 6309096 | Mixing valve structure for destroying pressure difference between liquids A valve structure is provided for destroying pressure difference between incoming fluids. The valve body includes two inlet passages and a merging passage that is communicated to an outlet. A pressure-balancing device is mounted in the merging passage and... | 10/30/2001 |
| 6193406 | Method and apparatus for mixing pulp a suspension with a fluid medium with a freely rotatable mixing rotor The present invention relates to a method and an apparatus for mixing a pulp suspension with a fluid medium. The method and the apparatus according to the invention are particularly advantageous when used for mixing different chemicals, both liquid and ga... | 02/27/2001 |
| 5620250 | Jet mixer having a self-centering liquid bearing hub arrangement A jet mixer having a hub arrangement for facilitating the rotation of an impeller mounted to the hub. The hub receives fluid from a hollow conduit to provide a liquid bearing. The hub includes a sleeve member that is axially self-centering and rotatable o... | 04/15/1997 |
| 5470151 | 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... | 11/28/1995 |
| 5453250 | Apparatus for the preparation of a flowable reaction mixture Leakage problems can be avoided in an apparatus for the preparation of a solid or cellular plastic-forming, flowable reaction mixture of at least two flowable reaction components and at least one additional component, by providing in the feed pipe of one ... | 09/26/1995 |
| 5439290 | Fluid flow conduit vibrator and method Vibrations are created in a flow conduit by constraining a bluff object having a plurality of positions between which flow of fluid forces the bluff object. In a preferred embodiment, the vibration technique is utilized in a gravel packing tool. Gravel pa... | 08/08/1995 |
| 5176447 | Turbomixer with rotating injector for mixing liquid A mixer is disclosed for absorbing and mixing gases in liquids, or for mixing a liquid with another liquid and/or atomizing a liquid in a gas. The mixer includes an impeller with blades which are bent backward, the blades being surrounded on both sides by... | 01/05/1993 |
| 5167449 | Paddle shaft assembly with adjustable-pitch paddles A paddle shaft assembly having adjustable-pitch paddles for use in a magnetic stirring apparatus. The paddle assembly is particularly useful for magnetic stirring apparatus used for suspending cell, or tissue, cultures in a growing medium. The paddle shaf... | 12/01/1992 |
| 5085810 | Water carbonator system An improved water carbonator system is provided for thoroughly mixing a carbonating gas with a water supply flowing through a refrigerated reservoir of the type used in soft drink dispenser stations and the like. The carbonator system includes water and g... | 02/04/1992 |
| 5071257 | Method of and arrangement for mixing Mixing of materials including a first component with a lower pressure and a second component with a higher pressure is performed by introducing the first component with the lower pressure into the second component with the higher pressure, and acceleratin... | 12/10/1991 |
| 4872764 | Cocktail shaker A beverage processing apparatus consisting of an outer housing having an upper portion and a lower portion which together form a closed processing vessel for containing a beverage mixture, the upper portion containing a driving motor that drives the shaft... | 10/10/1989 |
| 4838703 | Injection impeller for agricultural chemicals An apparatus for the injection of liquid additives, such as fertilizers and insecticides, into irrigation sprinkler systems for even dispersal within the least distance of conduit pipe from the point of injection is presented. Said injection is accomplish... | 06/13/1989 |
| 4778599 | Cleaning of a body of liquid by surface agitation An automatic swimming pool cleaning apparatus has a surface supply hose connected to a floating unit and a further underwater hose that is connected at one end to the surface unit in fluid communication with the outlet of the surface hose and at its other... | 10/18/1988 |
| 4746478 | Method and apparatus for production of foamed thermoplastic material A method and apparatus for the production of a foamed thermoplastic material. A cavity transfer mixer is provided between a screw extruder which melts, or fuses, the thermoplastic material, and a cooler. The cavity transfer mixer enables the formation of ... | 05/24/1988 |
| 4682896 | Device for generating vibrations The invention provides a device for generating mechanical vibrations, preferably a sound-type vibrator having a cylindrical housing with a coaxial stationary shaft, on which a sleeve-shaped working body is suspended, driven by a compressed fluid to a vibr... | 07/28/1987 |
| 4678341 | Integrated liquid distribution apparatus A liquid distributing apparatus, particularly for incorporation in lids or covers of 3 to 5 gallon containers, has a four-way input valve for delivering water under pressure to wash hands, clean materials, etc., fill the tank on which the lid is placed an... | 07/07/1987 |
| 4586854 | Venturi powder pump having rotating diffuser An improved powder pump for pumping air entrained solid particulate powder material comprising a pneumatic conveyor line within which there is located a low pressure venturi pumping chamber. This venturi pumping chamber is intersected by a powder supply p... | 05/06/1986 |
| 4552462 | Stirrer apparatus for paper stock A vane shaft is suspended within a container in a pendulum or swinging fashion at its drive shaft by means of a pivotable coupling. The drive shaft can constitute the output shaft of a drive arrangement composed of a drive motor equipped with a transmissi... | 11/12/1985 |
| 4548776 | Method and apparatus for molding structural foam articles An apparatus and method are disclosed which greatly facilitate molding of plastic material in the form of structural foam. The invention contemplates the provision of a valve-like mixing nozzle assembly which is selectively operable to control the flow of... | 10/22/1985 |
| 4465377 | Magnetic stirrer apparatus with guided, floating stirrer A magnetic stirrer apparatus includes a vessel for liquid and a floating stirrer. The floating stirrer is rotated by a magnet driven by a magnetic field generator laterally of the vessel, and a guide rod through the floating stirrer restricts its movement... | 08/14/1984 |
| 4405087 | Fluid mixing technique One non-propelled fluid resident in a reservoir is sucked into the flow path of a further fluid in transit propelled by fluid pressure. This is achieved by means of inducing a spiral cyclone path flow pattern in the propelled fluid to create a converging ... | 09/20/1983 |
| 4264214 | Gear motor/mixer A gas/liquid mixer in which intermeshing gears are caused to rotate and establish mixing, by pressure of the fluids being mixed. The gears are mounted for rotation in a gear chamber and interengage in a meshing zone of the chamber. A gas is introduced int... | 04/28/1981 |
| 4213712 | Method and apparatus for the continuous production of a slurry explosive containing an emulsified liquid component The continuous production of an explosive is achieved by intermixing at least two liquid component streams in an apparatus including a mixing rotor generally formed like a turbine impeller and freely rotatably supported in a housing directly opposite an i... | 07/22/1980 |
| 4179220 | Apparatus for anaerobic digestion of biodegradable waste material Apparatus for anaerobic digestion of biodegradable waste material comprises a closed substantially vertical cylindrical tank containing a mixing assembly which comprises an annular gas-holding member connected to a gas distribution arm extending substanti... | 12/18/1979 |
| 4176970 | Dasher A dasher is described for whipping fluid food products in a chamber. In this embodiment the dasher includes axially spaced frame members supported in the chamber and at least two cages mounted between the frame members. At least one of the cages is radial... | 12/04/1979 |
| 4159181 | Mixing and pelletizing machine A mixing and pelletizing chamber includes a semicylindrical flexible trough of rubber or other material in which a rotor assembly mixes and pelletizes material moved from an inlet end to an outlet end. Springs are attached to the trough to resist movement... | 06/26/1979 |
| 4148590 | Apparatus and method of stirring fluids A biological fermentor and improved method of aerating micro-organisms contained in the fermentor include a rotor which is mounted in the fermentor for turning movement in one direction, and a baffle element which is mounted on the rotor for turning movem... | 04/10/1979 |
| 4137048 | Insulating foam producing and delivering apparatus, and foam gun therefor Insulating foam producing and delivering apparatus includes foaming agent and resin supplies, means for delivering the foaming agent and resin and also air under pressure and a foam gun for generating the foam and mixing the foam with the resin. The foam ... | 01/30/1979 |
| 4129389 | Agitator construction An agitator construction is provided for use with a dasher assembly rotatably mounted within an elongated cylindrical chamber through which a viscous product is caused to flow. The dasher assembly includes an elongated skeletal section having the peripher... | 12/12/1978 |
| 4127137 | Washing apparatus A washing apparatus includes a cuplike casing receiving an annular receptacle containing the articles to be washed. A rotatable fluid distributor radially discharges fluid beneath the receptacle into the cup. The fluid is removed by a central overflow wei... | 11/28/1978 |
| 4097927 | Apparatus for mixing bulk materials An apparatus for mixing bulk materials, comprising a vertical cylinder and an inclined bottom, wherein in the axis of the vertical cylinder there is provided an internal pipe, and outside of it there is fastened an outer pipe, and both pipes are connected... | 06/27/1978 |
| 4068832 | Dasher A dasher is described for whipping fluid food products in a chamber. In this embodiment the dasher includes axially spaced frame members supported in the chamber and at least two cages mounted between the frame members. At least one of the cages is radial... | 01/17/1978 |
| 4033704 | Destratification device A device for destratifying bodies of water for controlling water quality parameters. The device includes an elongated hollow shroud within a cylindrical pipe that is capable of being supported in a vertical position within the body of water. The shroud is... | 07/05/1977 |
| 4008882 | Mixing unit for mixing and/or treating fluid materials A mixing unit for mixing and/or treating of fluid materials. The unit comprises a driven inner rotor mounted within an outer housing for rotation relative thereto. The outer housing is carried rotatably on the inner rotor or its drive shaft and has furthe... | 02/22/1977 |
| 3939073 | Apparatus for deodorizing liquids Apparatus for admixing a deodorizing liquid with a bad smelling liquid, comprises a hollow body in the form of a Y lying on its side in a vertical plane, the lower leg of the Y discharging the admixed liquids and the upper leg of the Y supporting and hous... | 02/17/1976 |