Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 4755061 | Proportional feeder for particulate solids In the mixing of two or more particulate solid feeds in proportional ratios in which the unmixed solids are fed from separate bin receivers into a common mixture bin receiver having a generally vertical section, the present invention comprises an improved... | 07/05/1988 |
| 4749554 | Nozzle for mixing flowable reaction components The invention relates to a nozzle for mixing at least two flowable (and in particular foam-forming) reaction components comprising a housing; component supply pipes leading into the housing; a housing bore arranged in the housing having a coaxial outlet c... | 06/07/1988 |
| 4728475 | Method of and device for admixing finely divided dye stuff into a synthetic granulate A synthetic granulate is fed into an extruder through an inclined upper part transiting into a short vertical lower part communicating with an inlet in the extruder. A down shaft of smaller diameter for feeding a stream of a dye stuff projects through the... | 03/01/1988 |
| 4710325 | Aspirating aeration and liquid mixing apparatus An aspirating aeration and liquid mixing apparatus is positioned in a body of water and includes a motor driven propeller positioned within an intake duct and driving water through a nozzle. A plenum with an air intake pipe extends about the nozzle. The n... | 12/01/1987 |
| 4688945 | Mixing apparatus Dry polymer is fed from a hopper into the funnel-shaped path of a mixing structure which has upper and lower nozzle portions cooperating to define a frustoconical nozzle opening or eductor which provides communication between the path and a surrounding an... | 08/25/1987 |
| 4643582 | Wetting chamber The present invention provides a new wetting chamber for a metering and wetting system typically for polyelectrolyte polymer. Atmospheric air is used to disperse the polymer fed into the chamber by a suitable feeder and to generate air/water turbulence in... | 02/17/1987 |
| 4634574 | Apparatus for use in sulfide chemiluminescence detection A method of chemiluminescently determining a sulfide which is either hydrogen sulfide or methyl mercaptan by reacting the sulfide with chlorine dioxide at low pressure and under conditions which allow a longer reaction time in emission of a single photon ... | 01/06/1987 |
| 4537513 | Process for dissolving polymeric material A dispersion of polymeric particles in a non-aqueous liquid is mixed with water with sufficient agitation to initiate substantial dissolution of the particles into water and is substantially homogeneously dispersed into the water substantially immediately... | 08/27/1985 |
| 4519423 | Mixing apparatus using a noncircular jet of small aspect ratio An apparatus for mixing fluids includes at least one noncircular orifice having unequal major and minor axis dimensions, with the major axis dimension being less than approximately 5 times the minor axis dimension. A first fluid is emitted from the orific... | 05/28/1985 |
| 4511535 | Liquid monomer feed pipe for continuous extrusion polymerization A feed pipe is provided for introducing highly reactive monomers into a continuous reactor to effect polymerization of such reactive monomers. The feed pipe has concentric tubes forming a central flow channel and an annular flow channel which are sized to... | 04/16/1985 |
| 4445781 | Post mix dispensing method and apparatus A post mix dispensing system for mixing together and dispensing carbonated water and a flavored soft drink syrup, while generating substantially reduced amounts of foam. Carbonated water is injected into a special staging chamber, where it circulates turb... | 05/01/1984 |
| 4439042 | Apparatus to continuously mix and homogenize powdered substances with liquid substances Apparatus for the continuous mixing and homogenization of powdered substances, such as powdered milk, with water or other beverages, comprises a hopper (1) with vibrating sieve (2) and a screw (3) situated at the base of the hopper and actuated with varia... | 03/27/1984 |
| 4416548 | Apparatus for gas or liquid admixture Methods and apparatus for continuously mixing fluid processing media with pulp suspensions are disclosed. The method includes supplying pulp suspensions to the central portion of the substantially planar radial face of a cylindrical rotor, feeding a fluid... | 11/22/1983 |
| 4383767 | Method for blending by combining fine particles A method for blending at least two substances of different properties by combining fine particles thereof comprises exposing the at least two substances to corona discharges of opposite polarities, finely dividing the electrically charged substances and c... | 05/17/1983 |
| 4334787 | Two-component dosing apparatus In a device for dosing two-component products of a predetermined mixing ratio, the dispensing accuracy has been improved in conjunction with simple design and uncomplicated operation. According to the invention, two chambers are provided which are put und... | 06/15/1982 |
| 4293570 | Process for the preparation of sweetener containing product An apparatus and process for the preparation of cryptocrystalline sweeteners, such as sorbitol, by the spraying of a heated, aqueous, low-viscosity, high-solids, sweetener solution, employing a cool, compressed, inert gas, through a nozzle into a fine spr... | 10/06/1981 |
| 4270673 | Electric gravity dispensing valve An electrically operated valve for effecting diffusion of a flow of pressurized diluent to substantially atmospheric pressure and mixing the diluent with a gravity flow of beverage concentrate in controlled proportions and dispensing a mixed beverage ther... | 06/02/1981 |
| 4239396 | Method and apparatus for blending liquids and solids A high capacity blender has been devised which is adaptable for use in achieving the proper blend of liquid-to-liquid or liquid-to-solid constituents making up a gel composition for use in fracturing oil and gas well formations in which a high speed impel... | 12/16/1980 |
| 4168018 | Dispensing and mixing device for plural fluids A multi-component fluent product, such as an epoxy resin mixture, is controllably mixed and dispensed from an improved mixer-dispenser. The device has a pair of pressure chambers each of which receives one of the fluent components in its original package.... | 09/18/1979 |
| 4125334 | Apparatus for mixing two flowable substances An apparatus for mixing two flowable substances, such as flocculent and water, comprises a first container into which a first flowable substance is fed and from which the first substance overflows onto an inclined face, the second flowable substance being... | 11/14/1978 |
| 4125331 | Mixing apparatus A mixing apparatus for the continuous mixing of a dry bulk material with a liquid to form a slurry. The dry material is introduced through an elongated vertical tube while the liquid is brought into an elongated cylindrical chamber around that tube in a r... | 11/14/1978 |
| 4096587 | Mixer for resin and sand Mixer for resin and sand comprises walls which form an inlet for the sand, an annular gap for the sand following the inlet, following which gap is an axially symmetrical mixing chamber and an outlet for the mixture; a supply arrangement with pipes for the... | 06/20/1978 |
| 4068831 | Apparatus for the production of foam materials containing a filler material An apparatus is disclosed for producing foam from two or more flowable chemical components where a filler material, such as waste foam, is added to one or more of the components prior to mixing and foaming. The charging mechanism for mixing the filler and... | 01/17/1978 |
