Bizarre Patents
Pizza Pie With Concentric Rings of Crust
A pizza mold for forming a plurality of concentric raised ridges of dough (i.e., crust) on the surface of a pizza pie.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5170653 | Method for coiling twist free steel bars Disclosed is a method of coiling steel bars, especially hexagonal bars, with a twist free coil in a continuous rolling mill equipped with pouring reels. Disclosed is the use of pinch rolls to prevent the twisting of the bar as it is being coiled.... | 12/15/1992 |
| 5100034 | Molten metal slide gate valve A molten metal slide gate valve for use on a ladle or tundish. The slide gate valve uses a refractory plate or plates having a shallow groove all around the periphery of one or both surfaces of the plate. The groove surrounds the molten metal orifice in t... | 03/31/1992 |
| 5083754 | Apparatus for retaining slag during the discharge of molten metal from a tundish Apparatus for retaining slag in a tundish or a ladle or similar vessel containing molten metal such as used in the steel industry. A refractory nozzle member and a refractory retainer member are secured to the bottom of the vessel around the molten metal ... | 01/28/1992 |
| 5070793 | Top chord member for railway cars A sidewall and top chord member for an open top gondola or hopper railway car. The top chord member is a lightweight rectangular tubular extrusion of aluminum having a pair of spaced wear pads on the top surface thereof to contact rotary or shaker type ca... | 12/10/1991 |
| 5058509 | Railway car with vented bolster to facilitate the thawing of lading A railway car suitable for rotary or bottom dump unloading. The body bolster is fitted with vents to permit a heating of the slope floor at the ends of the car to thaw the lading prior to unloading.... | 10/22/1991 |
| 5043230 | Zinc-maganese alloy coated steel sheet Disclosed is a multi-layered zinc-manganese alloy coating electrodeposited on sheet steel. The alloy layer closest to the surface of the sheet steel has a composition of at least 50% manganese while the composition of the other alloy layers farther remove... | 08/27/1991 |
| 5038687 | Multipurpose railroad freight car A multipurpose railroad freight car suitable for carrying either bulk freight or granular freight. The floor of the freight car comprises a pair of opposed, reversible conveyors. Also disclosed is a transverse wiper bar to guide the granular freight along... | 08/13/1991 |
| 5031688 | Method and apparatus for controlling the thickness of metal strip cast in a twin roll continuous casting machine A method and apparatus for controlling the thickness of a metal strip cast by pouring molten metal between a pair of closely spaced, water-cooled rotating rolls. The temperature of at least one of the rolls is measured at a fixed position relative to the ... | 07/16/1991 |
| 4988843 | Electrical flash butt welding apparatus Apparatus for electrical flash butt welding the ends of metal sheet or strip including a pair of flat faced parallel welding electrodes extending across the full width of the metal sheet or strip, one on each side thereof, and an electrode cleaning device... | 01/29/1991 |
| 4975115 | Process for treating dust and fume produced by the basic oxygen steelmaking process A process for conditioning basic oxygen steelmaking process dust and fume containing heavy metals for disposal. A sufficient quantity of solidified basic oxygen steelmaking process slag particles are added to the dust and fume to produce a mixture having ... | 12/04/1990 |
| 4953832 | Apparatus for the controlled cooling of hot rolled steel samples A method and apparatus for cooling samples of hot rolled steel sections. A programmable controller directs a predetermined sequence of air and cooling water sprays against the sample while held in a closed container. The controlled cooling of the sample p... | 09/04/1990 |
| 4950338 | Method for the controlled cooling of hot rolled steel samples A method for cooling samples of hot rolled steel sections. A programmable controller directs a predetermined sequence of air and cooling water sprays against the sample while held in a closed container. The controlled cooling of the sample prevents dimens... | 08/21/1990 |
| 4941646 | Air cooled gas injection lance An air cooled refractory covered injection lance for introducing reactive gases below the surface of a molten metal bath where the lance is provided with means to surround the reactive gas conduit with a high velocity cooling fluid to prevent thermal deco... | 07/17/1990 |
| 4936553 | Method for retaining slag during the discharge of molten metal from a vessel A method for retaining slag in a ladle or similar vessel containing molten metal such as used in the steel industry. Lumps of a highly refractory material having a density between the density of the molten metal and the density of the slag are added to th... | 06/26/1990 |
| 4930827 | Hoisting hooks used to lift, transport and dump metallurgical ladles The hoisting hook assembly of this invention comprises a pair of parallel hook arms connected at their upper end to a bail with the hook arms each having an upper hook portion and a lower hook portion adapted to engage a single pair of ladle trunnion pins... | 06/05/1990 |
| 4867677 | Curtain door for metal reheating furnace A curtain door for use at the charge or discharge openings of a metal reheating furnace the curtain door comprising a horizontal support bar extending across the furnace opening, a horizontal curtain hanger member removably attached to the horizontal supp... | 09/19/1989 |
| 4867622 | Lateral restraining device for cargo containers having more than one width A cargo container restraining device for preventing lateral movement of cargo containers being transported on freight vehicles the restraining device being adaptable to containers of different widths and comprising fixed and pivotal restraining assemblies... | 09/19/1989 |
| 4854791 | Container door barricade A container door barricade system for use on railroad container cars having one or more freight decks adapted to carry cargo containers of different lengths. The door barricade system comprises a plurality of both fixed and pivotal barricade assemblies lo... | 08/08/1989 |
| 4852860 | Consumable injection lance A consumable lance for injecting oxygen and other gases such as argon below the surface of a molten metal bath the lance comprising an upper manifold portion, a lower nozzle end portion, and a plurality of gas conveying conduits attached to a structural s... | 08/01/1989 |
| 4826371 | Container support pedestals A container support apparatus for supporting cargo containers being transported on railroad container cars the apparatus comprising a pair of pivotal support pedestals spaced opposite from each other along the side sills of the railroad container car and ... | 05/02/1989 |
| 4801056 | Distributor for continuous casting machine A distributor for introducing molten metal into a continuous casting machine. The molten metal is allowed to flow through two interconnected compartments before it is introduced into the continuous casting machine.... | 01/31/1989 |
| 4792125 | Consumable lance A consumable lance for introducing oxygen into molten metal. The lance is designed so that tubular oxygen passageways melt at a relatively low temperature thereby exposing refractory passageways and significantly improving the wear resistance of the lance... | 12/20/1988 |
| 4784209 | Continuous casting apparatus An apparatus for the continuous casting of molten metal between a pair of closely spaced water-cooled rolls in which the first roll is held in a fixed horizontal position by vertical support members attached to a structural base member. The second roll is... | 11/15/1988 |
| 4761178 | Process for heating molten steel contained in a ladle The temperature of molten steel in a ladle is raised to a predetermined level by introducing a plurality of oxygen containing gas streams beneath the surface of molten steel and introducing a predetermined quantity of an oxidizable fuel, such as aluminum ... | 08/02/1988 |
| 4746102 | Drain hole design for ladle This invention is directed to a system for reducing the yield loss from a metallurgical vessel, such as a ladle holding liquid metal having a slag layer thereon, by delaying the onset of slag entrapment in the metal stream during the tapping thereof. More... | 05/24/1988 |
| 4741515 | Apparatus for introducing gas into a metallurgical vessel Apparatus for introducing reactive and nonreactive gases through the refractory lining of a metallurgical vessel, such as bottom injection of such gases into a BOF to improve mixed blowing efficiency. The apparatus comprises one or more refractory blocks ... | 05/03/1988 |
| 4718644 | Slag sensor taphole assembly An improved slag sensor taphole nozzle assembly for a metallurgical vessel having electromagnetic coils protectively located in grooves in the nozzle sidewall, with the nozzle sidewall being (1) non-ferromagnetic and (2) having high electrical resistivity... | 01/12/1988 |
| 4715586 | Continuous caster tundish having wall dams A continuous caster tundish having refractory wall dams formed as part of a portion of the lining of the interior of the side walls, where each refractory wall dam is characterized by a flange projecting substantially horizontally inwardly to prevent turb... | 12/29/1987 |
| 4699202 | System and method for controlling secondary spray cooling in continuous casting A system and method is provided for cooling a continuous casting, which includes determining, for each element of steel, the steel residence time in each cooling spray zone of the secondary cooling and determining residence time flow rates as a function o... | 10/13/1987 |
| 4679774 | Fluid conduit coupling for a metallurgical converter trunnion A coupling for fluid conduits contained in a hollow trunnion of a basic oxygen furnace. The coupling is used to connect a plurality of fluid supply conduits to a plurality of fluid distribution conduits in the basic oxygen furnace.... | 07/14/1987 |
| 4650441 | Flexible gear coupling inspection port An inspection port to permit inspection of internal gears in a flexible coupling of the type used to connect rotating shafts in machinery.... | 03/17/1987 |
| 4624707 | Continuous casting slag A synthetic slag composition for the continuous casting of steel. The slag composition is used in the tundish to condition and remove sulfur from the molten steel prior to the steel being introduced into the continuous casting mold.... | 11/25/1986 |
| 4599140 | Method and apparatus for controlling crossflow in a double collector main coke oven battery The flow of gases given off by a coke mass during the production of coke in a coke oven having a coke side collector main and a pusher side collector main is controlled by measuring temperature, pressure, carbon equivalent thickness and rate of carbon for... | 07/08/1986 |
| 4566630 | Boltless, friction-fit, adjustable rail brace A boltless, friction-fit adjustable brace for bracing rails on a tie plate wherein a plurality of friction surfaces of a removable side brace engage corresponding surfaces on a rail. The brace is provided with a serrated portion on its side for engagement... | 01/28/1986 |
| 4451172 | Open top drain A corrugated metal open top pipe drain for the collection and removal of surface water from paved areas, such as highways, parking lots, airports and the like.... | 05/29/1984 |
| 4438056 | Method for producing a corrugated pipe having a smooth lining of foam plastic A smooth, plastic-lined corrugated pipe having an intermediate layer of plastic foam. The pipe is made by internally coating a corrugated pipe with a foaming mixture and pressing an expandable cylinder of plastic sheet liner against the foaming mixture un... | 03/20/1984 |
| 4416382 | Mercury container A container for the transport and storage of metallic mercury (Hg). A plastic thimble having a small opening in the upper side wall is disposed in the neck of the container to prevent oxidation of the mercury in the container and to retain mercury that wo... | 11/22/1983 |
| 4373393 | Method for determining the age or authenticity of timber structures A method of dendrochronology. A method for determining the age or authenticity of timber structures based on a correlation of the relative growth patterns of the woods used in the timber structure and the wood in samples taken from mature living trees on ... | 02/15/1983 |
| 4361097 | Railway gondola cars A railway gondola car suitable for rotary unloading. The floor of the car comprises a pair of concave troughs which extend between the center sill and the sides of the car having their axes parallel to the axis of the center sill along that portion of the... | 11/30/1982 |
| 4322179 | Open top drain A corrugated metal open top pipe drain for the collection and removal of surface water from paved areas, such as highways, parking lots, airports and the like.... | 03/30/1982 |
