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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 |
| 7284980 | Continuous firing furnace, manufacturing method of porous ceramic member using the same, porous ceramic member, and ceramic honeycomb filter A continuous firing furnace of the present invention comprises: a muffle formed into a cylindrical shape so as to ensure a predetermined space; a plurality of heat generators placed at the peripheral direction from the muffle; and a heat insulating layer formed in a... | 10/23/2007 |
| 6486071 | Spherical shaped semiconductor integrated circuit A spherical shaped semiconductor integrated circuit ("ball") and a system and method for manufacturing same. The ball replaces the function of the flat, conventional chip. The physical dimensions of the ball allow it to adapt to many different manufacturi... | 11/26/2002 |
| 6398547 | Oxy-fuel combustion firing configurations and methods An oxy-combustion firing configuration, process, and apparatus can reduce the consumption of oxygen and fuel in an oxy-fuel combustion processes. Processes in accordance with the present invention include operation of an automated logic control device whi... | 06/04/2002 |
| 6244860 | Apparatus and process for producing perlite In an apparatus for producing perlite granules, having an expansion tube and one or more burners arranged at one end of the expansion tube, the combustion air is blown into the flame through one or more combustion air nozzles. An additional subsonic nozzl... | 06/12/2001 |
| 5295822 | Convective heat transfer by cascading jet impingement in a batch coil annealling furnace An improved convective heat transfer arrangement is disclosed achieving overall heat transfer efficiencies in the neighborhood of 30 Btu/(hr. ft2 °F.). A heat transfer conduit including a heat transfer wall is axially divided into a plurality ... | 03/22/1994 |
| 5018707 | Heating furnace A heating mantle for heating materials, such as metals, alloys or inorganic chemicals in a retort, includes a tubular wall and annular chambers cooperating with said wall for forming a tortious path around the retort for hot gases. The mantle provides a v... | 05/28/1991 |
| 4913651 | Burner unit for firing furnace A burner unit is used for firing, for example, formed ceramic bodies in a firing furnace. The burner unit includes a burner tile assembly provided in a furnace wall and a burner connected to the burner tile assembly and provided out of the firing furnace.... | 04/03/1990 |
| 4222987 | Muffle calciner having counter-rotating screw conveyors The calciner is an elongated, insulated chamber, in which material is fed to counter-rotating screw conveyors. The material is calcined by heat radiating from a muffle plate interposed between the conveyors and gas-fired burners. This radiant heating, app... | 09/16/1980 |
| 3975149 | Ring furnace A ring furnace including pits bounded laterally by side wall flues, the side wall flues being connected in series by means for conducting gases between the side wall flues of the pits, so that heat in previously fired side wall flues can preheat air for c... | 08/17/1976 |
