Bizarre Patents
Pillow with retractable umbrella
A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.
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| Number | Title | Issue Date |
| 6468326 | Method for in-line filtering of a liquid metal and implementing device A device for an in-line filtering (10) of a liquid metal, by using only a single installation, to obtain a very good filtering of any liquid metal whatever its melting point. The device comprising a treating chamber (11) made of refractory material and ha... | 10/22/2002 |
| 6089123 | Structure for use in drilling a subterranean formation A method of manufacturing a drill bit or other drilling-related structure used for drilling into subterranean formations is herein disclosed where a blank is formed by placing a ferrous metal powder such as steel into a mold, sintering the ferrous metal p... | 07/18/2000 |
| 5891215 | Molten metal degassing and filtering methods Molten metal (e.g., on its way to a continuous casting machine for forming a bar that will be rolled into a rod to be drawn down to wire) is filtered to remove particulate impurities by passing it through at least one and preferably several ceramic filter... | 04/06/1999 |
| 5733500 | Molten metal degassing and filtering apparatus Molten metal (e.g., on its way to a continuous casting machine for forming a bar that will be rolled into a rod to be drawn down to wire) is filtered to remove particulate impurities by passing it through at least one and preferably several ceramic filter... | 03/31/1998 |
| 5045511 | Ceramic bodies formed from yttria stabilized zirconia-alumina Ceramic bodies suitable for use in the filtration of molten metal are formed by immersing a porous organic substrate material in an aqueous thixotropic slurry containing yttria, zirconia and alumina; expelling excess slurry; drying the impregnated materia... | 09/03/1991 |
| 4708740 | Technique for forming silicon carbide coated porous filters The present invention relates to a technique for forming silicon carbide coated porous filters for use in filtering molten metal, especially copper and copper alloy melts. The technique comprises preparing a silicon carbide containing slurry having a visc... | 11/24/1987 |
| 4601460 | Technique for removing impurities from a copper melt A copper or copper alloy material having a reduced number of defects is formed by removing impurities from the material while in a molten state with a member having exposed silicon carbide particles. The member may be a bed filter formed from bed media ha... | 07/22/1986 |
| 4572818 | Process for purifying metal compositions Purified metal compositions and metal compositions free of secondary phase material are produced by heating a metal alloy from the nonequilibrium solidus temperature while subjecting the liquid-solid mixture to high pressure and forcing the liquid through... | 02/25/1986 |
| 4537627 | Technique for removing impurities from a copper melt A copper or copper alloy material having a reduced number of defects is formed by removing impurities from the material while in a molten state with a member having exposed silicon carbide particles. The member may be a bed filter formed from bed media ha... | 08/27/1985 |
| 4533388 | Technique for removing iron-rich components from a copper melt A copper or copper alloy material having a reduced number of stringer defects is formed by removing iron-containing components from the material with a member having exposed silicon carbide particles while the material is in a molten state. The member may... | 08/06/1985 |
| 4330328 | Process and apparatus for making a metal alloy A process and apparatus for producing a copper metal or alloy wherein a first material is added to a molten metal, consisting essentially of copper preferably in a furnace. After the first material is added, the molten metal is passed through a filtration... | 05/18/1982 |
| 4330327 | Disposable bed filter process and apparatus A disposable bed filter for removing particulate matter and/or reducing oxygen in a poured metal melt is located within a trough. The bed filter preferably comprises discrete layers of bed media located in a trough between entry and exit baffle plates. Th... | 05/18/1982 |
| 4315775 | Continuous melting and refining of secondary and/or blister copper Disclosed is an integrated system for continuously melting and refining secondary and blister copper to produce and continuously cast anode grade copper comprising: continuous melting of secondary and blister copper in an optional fuel vertical shaft furn... | 02/16/1982 |
| 4277281 | Continuous filter for molten copper Disclosed is apparatus for and a method of continuously filtering and optionally degassing molten copper and otherwise extracting impurities therefrom comprising disposable porous ceramic foam filtering means and means for supplying a deoxidizing or clean... | 07/07/1981 |
| 4257810 | Cordierite, silica, alumina porous ceramic body A ceramic porous body for use in filtering molten metal is disclosed. The ceramic porous body has a three-dimensionally network cellular structure with a plurality of interconnected voids and is characterized by having a pore size of 25-35 pores per linea... | 03/24/1981 |
