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The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 7374332 | Method, device and system for mixing liquids A method and a device are provided which can mix two liquids faster at a precise mixing ratio. The method for mixing at least two liquids transported in respective channels includes transporting, of the two liquids, a liquid having a low mixing rate intermittently i... | 05/20/2008 |
| 7357563 | Continuous liquid stream blender Continuous stream ratio blending of two or more liquids. Each stream flow is time synchronized to all others and turned on and off to dose precise ratios into a constant pressure streams combining chamber. Combined on-off flows constitute a net flow rate exceeding s... | 04/15/2008 |
| 6203184 | Blender A blender for delivery of blend additives to a plastics extrusion device has a mixing chamber for reception of materials to be blended. Batches of blend materials are delivered to the mixing chamber from material supply bins via a weight hopper. Within th... | 03/20/2001 |
| 6120742 | Controller at polymer electrolyte interface for system for mixing and activating polymers A system for activating or inverting modern, fast to activate polymers has a chamber with two entrances, one for neat polymer and one for an electrolyte. The polymer and electrolyte first meet at a polymer/electrolyte interface formed by an orifice in the... | 09/19/2000 |
| 5480597 | Method for blending a gas into a high viscosity liquid The objectives of the present invention are achieved by preparing a foamable composition comprising a viscous liquid and a gas homogeneously dispersed in the liquid. The compositions are prepared by blending a pressurized gas with the viscous liquid in a ... | 01/02/1996 |
| 4954253 | Device for preparing a gradient solution for a high-pressure liquid chromatograph A device for preparing a gradient solution for a high-pressure liquid chromatograph comprises vessels (1) containing eluents, a switch-over unit (7), a piston pump (9) and a mixer (4). Each vessel (1) containing eluents has a movable partition (10) dividi... | 09/04/1990 |
| 4938606 | Method of and an apparatus for producing a water-in-oil emulsion The production of a water-in-oil emulsion proceeds by an exact dosing of the desired water-oil ratio in a dosing apparatus. The dosed mixture is fed into a mixing chamber for producing the emulsion proper. Thereafter, the emulsion is fed out of the chambe... | 07/03/1990 |
| 4850703 | Method of mixing pulverulent materials and device for practicing the same A method of mixing pulverulent materials and a device for practicing the method. In this method, the pulverulent material constituting a main material is continuously fed to a conveyor duct connected to a molding machine in fixed quantities while air is b... | 07/25/1989 |
| 4774059 | Apparatus for the feeding of liquid synthetic resin components A mixing head is supplied with two or more synthetic resin components from respective supply vessels. When one of these components is highly filled and an obstruction may be expected upstream of the metering piston unit between the supply vessel and the m... | 09/27/1988 |
| 4715724 | Head attachment for a hydraulic synthetic-resin working machine for colored synthetic resin The invention relates to a head attachment for a hydraulic synthetic-resin processing machine for colored synthetic resin, the attachment comprising a mixer, a synthetic resin supply vessel directly connected with the former and a coloring mass supply ves... | 12/29/1987 |
| 4607957 | Plant for the continuous preparation of floated fodder This invention relates to a plant for the preparation of floated fodder, i.e. fodder in aqueous suspension made from humid grit or granulate and water with supplementary nutritional components and is based on a gastight high-rise silo comprising a central... | 08/26/1986 |
| 4531840 | Solvent proportioning and mixing apparatus and system An apparatus (10) for proportioning and mixing liquid components of a solvent has a chamber (12) with a rotatable piston (24) mounted in the chamber. The chamber has a plurality of liquid component inlets (18, 20 and 22). Rotatable piston (24) has a notch... | 07/30/1985 |
| 4531839 | Automatic dispenser-mixer An automatic dental amalgam dispenser-mixer comprising a first reservoir for silver powder and a second reservoir for mercury, dispensing and metering means for each material, and a mixer equipped with a recovery cup at its outlet. The dispensing and mete... | 07/30/1985 |
| 4505593 | Batter mixer with water meter A batter mixer for mixing a dry powder batter mix with a predetermined quantity of liquid which comprises an upright open top housing having a mixing chamber therein, means connecting the mixing chamber to a source of fluid, fluid control means in circuit... | 03/19/1985 |
| 4496245 | Liquid chromatography proportioning valve and mixer A combined proportioning valve and mixer usable in a liquid chromatography system for mixing solvents in predetermined ratios, includes a magnetically driven stirrer rotatably disposed in a central chamber. Plural inlet lines allow solvents to enter the c... | 01/29/1985 |
| 4475821 | Mixing chamber A mixing chamber for liquids, which are supplied to the mixing chamber in measured quantities one after the other alternating over a period of time, in particular for liquid chromatographs is divided by a fine-pored filter plate (109) into two areas (105,... | 10/09/1984 |
| 4459029 | Device for mixing and for dose-feeding a product, and application to feeding especially epoxy-resin based adhesives The invention concerns a device for mixing and dose feeding a product of one or several components. This device comprises a mixing chamber 3 within which is freely mounted a static-type mixing member 7 which thereby can move within the chamber 3 along a p... | 07/10/1984 |
| 4444337 | Apparatus for proportioning fluids An apparatus and method for determining the heating value of gaseous fuels is disclosed which include the novel means for establishing a mixture of air and the gaseous fuel of interest in known volumetric proportions. An electrochemical sensor is provided... | 04/24/1984 |
| 4440314 | Method and apparatus for the automatic dynamic dosing at least of one fluid component of a mixed fluid In order to increase the dosing precision it is proposed to control the flow of the main component and thereby the measured flow of the main component is used as a variable desired value, and with the control of the flow of the secondary component the con... | 04/03/1984 |
| 4427298 | Method and system for accurately providing fluid blends A method and system are described for preventing interaction between the valves and pump in a liquid blending system. The method and system select operating relationships between the valve period and pump period that avoids synchronous operation and there... | 01/24/1984 |
| 4404168 | Apparatus for the discontinuous production of articles from foamed plastics Apparatus for the discontinuous production of articles from a foamed plastic, including metering vessels for reaction components arranged above a mixing vessel. The metering vessels are with the interposition of communication bellows connected to the mixi... | 09/13/1983 |
| 4357861 | Apparatus for brewing a hot beverage made up of a solution of a powdered substance in a liquid A hot-beverage-brewing machine is disclosed in which the improvements consist in having the heating means directly applied to a cuplike compartment in which a single dosage unit is individually brewed and in providing a rotary blender dipping in the cupli... | 11/09/1982 |
| 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 |
| 4332483 | Mixing apparatus Mixing apparatus is described in which a plurality of chemical materials are to be incorporated in a carrier liquid, which may be a solvent, such as water, and which is quantitatively predominant, some of the chemical materials being incompatible if broug... | 06/01/1982 |
| 4265858 | Metering and mixing apparatus for multiple component A multiple component applicator system for simultaneously metering a plurality of flowable materials and for delivering the metered quantities in predetermined proportions to a mixing device wherein the flowable materials are mixed and then dispensed. The... | 05/05/1981 |
| 4093507 | Method of liquid treating cellulose fibres with elastic pressure shocks Cellulose fibers are treated by providing the fibers in a 10-90% concentration in liquid, and applying elastic pressure shocks to the fibers for a duration not exceeding one second and of a magnitude causing the pressure in the interior of the fibers to e... | 06/06/1978 |
| 4092118 | Mixing head A high pressure mixing head is disclosed for combining a plurality of reactive fluid polymeric components to form a mixture thereof for molding purposes. The mixing head incorporates an expulsion piston operating in a mixing chamber into which the several... | 05/30/1978 |
| 4060223 | Device for mixing granular and/or pulverous substances A mixing device for mixing flowable materials, especially dry materials, such as pulverant or powdered materials, in which a pair of inlet conduits have the downstream ends connected to a fitting which is also connected to the upstream end of a discharge ... | 11/29/1977 |
| 4027859 | Automatic control of liquid addition to a mixture by power sensing An apparatus for adding trim water or liquid to a mixture in a powered mixer and controlling the amount automatically. After a selected temperature has been signalled by a temperature sensing device, the water or liquid is pulsed into the mixer, each puls... | 06/07/1977 |
| 3999740 | Mixing head A mixing head having a housing, a mixing chamber in said housing, injection ports for dispensing fluid into the mixing chamber, a valve for controlling the dispensing of fluid through the ports, and means for mixing the fluid in the chamber. This abstract... | 12/28/1976 |
| 3999945 | Liquid analysis system An automatic liquid analyzing apparatus for quantitatively measuring the parameter of a liquid is disclosed. The preferred embodiment of the invention comprises means for automatically and continuously obtaining a relatively pure sample of the liquid to b... | 12/28/1976 |
