...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7052559 | Welding flux for use in arc-welding of stainless steels, method of welding stainless steel members using the welding flux A welding flux for use in welding stainless steel parts to increase welding penetration, consisting essentially a base material obtained from manganese peroxide (MnO2), and an activator selected from a material group that includes zinc oxide (ZnO), silico... | 05/30/2006 |
| 6521015 | Method and apparatus for treating molten aluminum using improved filter media A method for filtering molten aluminum containing suspended particles using an improved filtration media, the method comprising the steps of providing a source of molten aluminum and providing media having a coating thereon, the coating having a softening... | 02/18/2003 |
| 6328781 | Mold cover powder for continuous casting of steel, especially very-low-carbon steels A method of making a powder for covering an ingot mold for the continuous casting of steel, in particular steels with ultra-low carbon content. The powder comprises a base powder and particles of at least one metal nitride, its free carbon content being b... | 12/11/2001 |
| 5876482 | Mould cover for continuous casting of steel, especially very-low-carbon steels A powder for covering an ingot mold for the continuous casting of steel, in particular steels with ultra-low carbon content. The powder comprises a base powder and particles of at least one metal nitride, its free carbon content (%Cfree) being ... | 03/02/1999 |
| 4961783 | Composition for removing iron contamination from magnesium A process for removing iron contamination from molten magnesium by adding to the molten magnesium a mixture of a boron-containing compound and a flux. The boron-containing compound includes, for example, elemental boron, boric acid, and boron oxide. The f... | 10/09/1990 |
| 4956009 | Calcium alloy steel additive and method thereof A granular additive alloy designed for addition of calcium to molten steel to obtain maximum calcium effects with minimal additions, especially in steels which cannot tolerate the other elements commonly accompanying calcium additions. An alloy is describ... | 09/11/1990 |
| 4880463 | Fluorine-free mold powders A glass frit composition having the theoretical oxide values (in weight %) of 0.5-9 Li2 O, 29-38 Na2 O, 0-25 CaO, 5-10 B2 O3 and 38-50 of SiO2 is characterized in that it is virtually fluorine-free an... | 11/14/1989 |
| 4842647 | Mould additive for continuous casting of steel The present invention offers a mould additive for continuous casting of steel characterized by having a fully spherical shape in which average particle size is in the range of 100 to 800 μm.... | 06/27/1989 |
| 4595559 | Process for the production of composite alloys based on aluminum and boron and product thereof The present invention relates to a process for the production of composite alloys based on aluminum, which may or may not be alloyed, and containing up to 30% by weight of boron. The process is characterized in that the boron is introduced into the liquid... | 06/17/1986 |
| 4560409 | Metal bearing graphitic carbons This invention relates to the production of a unique class of granular graphitic carbon materials containing metallic elements dispersed throughout the graphitic structure. More specifically, the unique class of products contain elements that enhance the ... | 12/24/1985 |
| 4364771 | Product for the desulphurization of cast irons and steels The invention relates to a process for the desulphurization of cast irons and steels. The product is constituted of the combination of magnesium shot or magnesium alloy with rounded contours having a granulometry of between 0.1 and 3 mm and a granulated s... | 12/21/1982 |
| 4297132 | Electroslag remelting method and flux composition An improved method is disclosed for electroslag remelting an electrode of an alloy containing at least one oxide forming ingredient, including melting such electrode in a novel flux composition containing about 1-35% boron oxide, by weight.... | 10/27/1981 |
| 4290809 | Raw mix flux for continuous casting of steel The present invention is directed to raw mix flux for the continuous casting of steel wherein the flux composition consists of a mixture of ceramic raw material having the following theoretical analysis based on the composition formed on melting the raw m... | 09/22/1981 |
| 4233065 | Effective boron alloying additive for continuous casting fine grain boron steels An effective alloying additive for adding small (5-30 ppm) quantities of boron to steel which is continuously cast, said additive containing 0.5-1.5% boron, 8-15% calcium, 8.5-20% titanium, 40-60% silicon, up to 1.5% of aluminum, and balance iron. The add... | 11/11/1980 |
| 4159906 | Method and composition for the desulfurization of molten metals Molten metals, especially molten pig iron, are desulfurized by contacting them with a composition comprising calcium carbide or calcium cyanamide and an additive agent yielding water or hydrogen at the temperature of the molten metal; preferred as the add... | 07/03/1979 |
| 4078915 | Method and composition for the desulfurization of molten metals Molten metals, especially molten pig iron, are desulfurized by contacting them with a composition comprising calcium carbide or calcium cyanamide and an additive agent yielding water or hydrogen at the temperature of the molten metal; preferred as the add... | 03/14/1978 |
| 3933476 | Grain refining of aluminum Grain refining of aluminum using an addition of titanium, aluminum and KBF4.... | 01/20/1976 |