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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 |
| 7399450 | Cyclone layer reactor A fluidized-bed reactor is disclosed. The fluidized-bed reactor steadies the gas flow through the fluidized bed chamber of the reactor. The swirl chamber of the reactor consists of a conical housing in which a conical insert is also situated. This creates an annular... | 07/15/2008 |
| 7300565 | Process to prepare a microcrystalline wax and a middle distillate fuel The invention relates to a process to prepare a microcrystalline wax and a middle distillate fuel by (a) hydrocracking/hydroisomerizing a Fischer-Tropsch product, wherein the weight ratio of compounds having at least 60 or more carbon atoms and compound... | 11/27/2007 |
| 7241376 | Method for passing a fluid through a moving bed of particles A process for contacting a bed of particulate material, usually catalyst, with a transverse flow of fluid is disclosed. The particulate material moves or is prevented from not moving, while the fluid passes through the bed at a rate greater than the stagnant bed pin... | 07/10/2007 |
| 6814857 | Method for passing a fluid through a moving bed of particles A process for contacting a bed of particulate material, usually catalyst, with a transverse flow of fluid is disclosed. The particulate material moves or is prevented from not moving, while the fluid passes through the bed at a rate greater than the stagnant bed pin... | 11/09/2004 |
| 6576120 | Catalytic dewaxing process The invention relates to a process for the catalytic dewaxing of a hydrocarbon feed containing waxy molecules by contacting the hydrocarbon feed under catalytic dewaxing conditions with a catalyst composition having metallosilicate crystallites, a binder ... | 06/10/2003 |
| 5916529 | Multistage moving-bed hydroprocessing reactor with separate catalyst addition and withdrawal systems for each stage, and method for hydroprocessing a hydrocarbon feed stream A method, and a reactor, for hydroprocessing a hydrocarbon feed stream through multistage moving catalyst beds contained within a single onstream reactor vessel, with separate catalyst addition and withdrawal systems for each of the multistages of moving ... | 06/29/1999 |
| 5840176 | Replacement of particles in a moving bed process A method for replacing particles in a process that transfers particles is disclosed. This invention employs a seal zone which is in communication with two zones of the process and in which particles that are being added to the process are purged. This inv... | 11/24/1998 |
| 5545312 | Replacement of particles in a moving bed process A method and apparatus for replacing particles in a process that transfers particles is disclosed. This invention employs a seal zone which is in communication with two zones of the process and in which particles that are being added to the process are pu... | 08/13/1996 |
| 5076908 | Method and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bed This invention makes possible substantially continuous flow of uniformly distributed hydrogen and hydrocarbon liquid across a densely packed catalyst bed to fill substantially the entire volume of a reactor vessel by introducing the fluids as alternate an... | 12/31/1991 |
| 4902407 | Catalyst inventory control in an ebullated bed process An improved method of controlling catalyst inventory in the reactor of an ebullated bed process has been discovered. Pressure differentials are measured to calculate a catalyst inventory characterization factor. Aged catalyst is withdrawn and fresh cataly... | 02/20/1990 |
| 4664782 | Method for withdrawing particulate solid from a high pressure vessel The particulate solid is maintained in a bed in contact with a liquid within a high pressure vessel. The particulate solid is supported in the vessel in a cone-like configuration. A discharge tube is provided communicating with the particulate solid runni... | 05/12/1987 |
| 4502946 | Process for the complete replacement of particles in vessels Process for the complete replacement under operating conditions of particles in a vessel provided with a feed inlet and, if desired, a separate particle inlet, a particle outlet and an effluent outlet, wherein part of the feed passing through the vessel d... | 03/05/1985 |
| 4478793 | Radial flow reactor with operating temperature profile A radial flow reactor design which allows the maintenance of a temperature profile along the height of a catalyst bed which descends through the reactor by gravity flow. Two feed inlet conduits are provided on the inlet side of the annular catalyst bed, w... | 10/23/1984 |
| 4444653 | Process and device for withdrawing solid particles and introducing a liquid charge at the lower part of a contact zone Catalysts solid particles are supplied to a vertical reactor for the catalytic treatment of fluid charges, at the upper part of said reactor and are progressively withdrawn from the lower part thereof either continuously or periodically through a funnel h... | 04/24/1984 |
| 4392943 | Process and device for withdrawing solid particles and introducing a liquid charge at the lower portion of a contact zone In a process for the catalytic treatment of hydrocarbon charges in the presence of hydrogen in a vertical reactor where the catalyst is introduced at the top and withdrawn at the bottom, countercurrently with the charge which is introduced at the bottom a... | 07/12/1983 |
| 4277444 | Apparatus for converting hydrocarbons An improved radial reactor for hydrocarbon conversion is provided, having a new catalyst collector whose center is located nearer to the internal wall than to the external wall of the annular enclosure for receiving the moving catalyst bed.... | 07/07/1981 |
| 4259294 | Apparatus for the hydrogenation of heavy hydrocarbon oils A hydroconversion process for heavy hydrocarbon oil and reactor system having a series of closed reactor vessels containing substantially fixed catalyst beds in flow communication with each of one catalyst-supply conduit system and one catalyst-removal co... | 03/31/1981 |
| 4110081 | Moving-bed radial flow solids-fluid contacting apparatus An improved radial flow moving bed reactor, or other type of fluid-solid contacting vessel, in which stagnant catalyst volumes are reduced. The improvement results from the placement of a plurality of catalyst collection scoops or a single discoid cover p... | 08/29/1978 |
| 3978150 | Continuous paraffin dehydrogenation process Continuous operation and a high rate of conversion are obtained in a normal paraffin dehydrogenation process through the use of a moving bed non-fluidized reaction zone operated at a subatmospheric pressure. Quantities of catalyst are periodically removed... | 08/31/1976 |
