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 |
| 7441752 | Carbonic water production apparatus and carbonic water production method A carbonic water production apparatus equipped with a carbonic acid gas dissolving apparatus 3 and a circulation pump 1 wherein water in a bath 11 is circulated by the circulation pump 1, and a carbonic acid gas is fed into the carbonic a... | 10/28/2008 |
| 7438285 | Refrigerator with carbonated water distributor A refrigerator incorporating in its door a water dispenser within a compartment present on the outside of the door, the dispenser being connected to a water container of given capacity carried by the door and provided to enable the contained water to be carbonated v... | 10/21/2008 |
| 7377495 | Temperature sensitive pressure regulator for carbonated beverage systems A pressure regulator that regulates the pressure at which carbon dioxide is introduced to water in a carbonated beverage system based on the temperature of the water. The regulator may be capable of operating in a first mode in which the carbon dioxide pressure vari... | 05/27/2008 |
| 7341660 | Unitary three stage wastewater treatment system The invention is a three stage wastewater treatment system having a first tank, a second tank and a third tank, all in fluid communication and forming a unitary structure. The first and second tanks are nested, where the first tank is the innermost tank. The first t... | 03/11/2008 |
| 7325439 | Fluid permeability measurement system and method A system for measuring the permeance of a material. The permeability of the material may also be derived. The system provides a liquid or high concentration fluid bath on one side of a material test sample, and a gas flow across the opposing side of the material tes... | 02/05/2008 |
| 7300040 | Simple, mechanism-free device, and method to produce vortex ring bubbles in liquids An apparatus and method are described that allows for the production of vortex-ring bubbles in a liquid. The device is an inverted cup with a short nozzle protruding through the center of its end face such that the nozzle lower opening is at a higher level than the ... | 11/27/2007 |
| 7267475 | Blender A mixing apparatus and method wherein the mixing apparatus includes a hopper having a port piston for periodically retracting to open a fluid port to allow a slug of gas to be quickly injected into the bottom of a hopper, which produces a mixing and blending of the ... | 09/11/2007 |
| 7264224 | Valve with offset venturi A valve is disclosed having a valve closing member that divides the valve bore into passageways of unequal cross sectional areas when in an open position. A venturi is positioned within the valve bore upstream of the valve closing member. The throat of the venturi m... | 09/04/2007 |
| 7264006 | Ozonated water flow and concentration control apparatus and method The invention features an apparatus and a method for supplying ozonated water to more than one process tool. Ozonated water of a first concentration received from an ozonated water generator and water received from a source are mixed to produce ozonated water of a s... | 09/04/2007 |
| 7246793 | Carbonic water production apparatus and carbonic water production method A carbonic water production apparatus equipped with a carbonic acid gas dissolving apparatus 3 and a circulation pump 1 wherein water in a bath 11 is circulated by the circulation pump 1, and a carbonic acid gas is fed into the carbonic a... | 07/24/2007 |
| 7201181 | Mixing valve A mixing valve for mixing steam and water comprising an inlet chamber for steam, an inlet chamber for water, and a mixing chamber for mixing the steam and the water. The mixing chamber has at least one outlet connected thereto. A valve member arranged in the steam i... | 04/10/2007 |
| 7165581 | Method and apparatus for preserving beverages and foodstuff Systems and methods for preserving a perishable material sensitive to oxygen and bacterial spoilage are taught. The systems in some embodiments comprise a pressurized source of a first gas other than oxygen and a container for the perishable material, the container ... | 01/23/2007 |
| 7152851 | Steam injection heater with dual-sealing assembly A direct contact steam injection heater that includes a steam diffuser having a plurality of steam diffusion holes that are selectively exposed by a regulating member to control the amount of steam used to heat a liquid. The regulating member is movable within the s... | 12/26/2006 |
| 7111830 | Anti-detonation fuel delivery system A fuel processing device [2] is provided that produces properly sized fuel aerosol particles [5] that when mixed with combustion air, reduces or eliminates detonation (knock) in internal combustion engines thus reducing fuel octane requirements for eng... | 09/26/2006 |
| 7093826 | Anti-detonation fuel delivery system A fuel processing device is provided that produces properly sized fuel aerosol particles that when mixed with combustion air, reduces or eliminates detonation (knock) in internal combustion engines thus reducing fuel octane requirements for engines of a given compre... | 08/22/2006 |
| 7011299 | Liquid vapor delivery system and method of maintaining a constant level of fluid therein In accordance with the present invention, a method and system is described for controlling the delivery of vapor from a bubbler containing a supply of chemical fluid through which a carrier gas is bubbled and from which bubbler vapors are delivered in a vapor stream... | 03/14/2006 |
| 7007933 | Method and apparatus for supplying a source gas A method for supplying a source gas to a processing chamber for forming a film on a substrate in the processing chamber includes: heating a carrier gas; bubbling the heated carrier gas in a liquid source disposed in a container to form a vapor source; and supplying ... | 03/07/2006 |
| 7003215 | Vapor flow controller A vapor flow controller apparatus for delivery of chemical reagent vapors from a liquid phase source material is provided which includes a source container containing the liquid phase source material, a pump to transport the liquid phase source material to a vaporiz... | 02/21/2006 |
| 6948504 | Ozonated water flow and concentration control method The invention features an apparatus and a method for supplying ozonated water to more than one process tool. Ozonated water of a first concentration received from an ozonated water generator and water received from a source are mixed to produce ozonated water of a s... | 09/27/2005 |
| 6936179 | Method and apparatus for adding oxygen to drinking water A method and apparatus for producing super-oxygenated water for human consumption including forcing atmospheric air through a filter to remove impurities, exposing the filtered air to ultra violet light to cleanse the air, and to form ozone and oxygen in the air, fo... | 08/30/2005 |
| 6905111 | Apparatus and method for producing aqueous carbonic acid solution A carbonic water production apparatus equipped with a carbonic acid gas dissolving apparatus 3 and a circulation pump 1 wherein water in a bath 11 is circulated by the circulation pump 1, and a carbonic acid gas is fed into the carbonic a... | 06/14/2005 |
| 6851664 | Self-relieving choke valve system for a combustion engine carburetor A self-relieving choke valve system for a carburetor of a combustion engine automatically opens a choke valve after a successful engine start up and permits the choke valve to automatically close when the engine is shut down. The self-relieving choke valve system is... | 02/08/2005 |
| 6824125 | Simple method for the controlled production of vortex ring bubbles of a gas in a liquid An apparatus, and its method of operation, are described that allow for the production of gas-filled vortex rings in a host liquid. A source of gas under pressure is connected via a tube to the inlet of a regulation valve whose outflow is connected via a similar tub... | 11/30/2004 |
| 6601832 | Device for sucking gas and mixing it with a fuel flow The invention relates to a device for sucking air and mixing it with a liquid fuel flowing in a tubular flow duct. The device has a liquid intake duct (3) and outlet duct (4) and between them a throttle section (1), which forms a substantially reduced flo... | 08/05/2003 |
| 6454247 | Anti-backdraft shutter assembly for an axial flow fan An anti-draft shutter assembly for an axial flow fan fitted to a duct. The assembly includes at least one counterbalanced flap supported downstream of airflow from the fan when in operation, and at least one of the flaps being pivotally supported outside ... | 09/24/2002 |
| 6182951 | Method and apparatus for providing a precise amount of gas at a precise humidity A fluid transfer system includes a permeable fluid carrier, a constant temperature source of a first fluid, and a constant pressure source of a second fluid. The fluid carrier has a length, an inlet end, and an outlet end. The constant pressure source con... | 02/06/2001 |
| 6138994 | Foam generating apparatus Apparatus for generating foam for use in fire fighting having two plates housed in a chamber which respectively introduce pressurized air and a water/surfactant solution between the two plates where foam is generated and emitted from an aperture on the si... | 10/31/2000 |
| 6088418 | Pool pressure mitigation using sparger phase interaction A method and apparatus for mitigating oscillatory pressure disturbances that result from venting steam from a nuclear reactor into a pressure suppression pool through a plurality of spargers is disclosed. The individual spargers are connected in series so... | 07/11/2000 |
| 6041803 | Device and method for eliminating severe slugging in multiphase-stream flow lines The present invention relates to a device located near to the point of junction of a multiphase-stream underwater flow line with a stratified phase pattern, and an underwater riser, which introduces a pressure drop into the flow and causes a vigorous mixi... | 03/28/2000 |
| 5971368 | System to increase the quantity of dissolved gas in a liquid and to maintain the increased quantity of dissolved gas in the liquid until utilized A system for increasing the quantity of a gas, e.g., ozone, dissolved in a liquid, e.g., ultrapure deionized water, is provided. Generally, the system provided by the present invention includes a pressurized vessel and an outlet coupled to the pressurized... | 10/26/1999 |
| 5758700 | Bottle cap interlock In an interlocking device between a cap for a beverage container and a carbonation device for introducing carbon dioxide gas into said beverage container in a locked position, wherein said carbonation device includes projecting structure, and said cap inc... | 06/02/1998 |
| 5740779 | Apparatus for reducing evaporative hydrocarbon fuel emissions from an internal combustion engine and for improving the performance thereof A sensor is employed in conjunction with an internal combustion engine having at least one hydrocarbon fuel combustion chamber and an air inlet for introducing air into the combustion chamber to sense termination of operation of the internal combustion en... | 04/21/1998 |
| 5693263 | Sparger for producing gas bubbles in a liquid A sparger (100) for producing gas bubbles in a liquid comprises a body member (102) having a gas inlet (105) and an outlet portion (106) provided with a gas outlet (108). The outlet portion (106) has an internal bore (110) which is in communication with t... | 12/02/1997 |
| 5676823 | Sparger system including jet stream aerator A sparging system assembly having an improved nozzle for use in a flotation separation column. The sparging system of the present invention uses an elastomeric check valve type nozzle to form the desired size of flotation bubbles in the column. The system... | 10/14/1997 |
| 5518666 | Device and method for temperature-regulation of a gas-liquid absorption system particularly CO2 water absorption In an apparatus and method for maintaining a desired (target) carbonation level in a carbonator, a control-signal originates from a reference standard of carbonated water close to the target carbonation level, which is sealed inside a pilot chamber of the... | 05/21/1996 |
| 5478504 | Method and apparatus for eliminating severe slug in multi-phase flow subsea lines This invention refers to a method for the control of the phenomenon of severe slug in multi-phase flow subsea lines such as those for conveying petroleum from a subsea wellhead to the surface, comprising the installation of at least one secondary line (3)... | 12/26/1995 |
| 5266239 | Diffuser assembly for an aeration system of a wastewater treatment plant An aeration apparatus for a wastewater treatment plant having an air line connected to an air source, a drop line connected in fluid communication with the air line, a check valve positioned in the drop line between an orifice at the bottom of the drop li... | 11/30/1993 |
| 5183595 | Device for gassing liquids A device for gassing liquids, in particular for aerating waste water, includes a gas distributor that can be connected to a gas supply device, that is to be arranged below the liquid level and that has at least one membrane-like wall made of a flexible ma... | 02/02/1993 |
| 5118010 | In-home drink dispenser A post mix in-home carbonated drink dispenser has a novel expansion chamber and an anti-surge valve. The expansion chamber is a gradually expanding chamber which reduces carbonation loss as the carbonated liquid passes from the carbonator to the point whe... | 06/02/1992 |
| 4928850 | Gas blending apparatus An apparatus for blending two gases together in precisely adjustable proportions. The apparatus includes a mechanically adjustable, blending subassembly adapted to receive the first gas at a predetermined pressure and a one to one force balanced pneumatic... | 05/29/1990 |