Did You Know...
...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 |
| 8118953 | Method for producing steel part having long rolling contact fatigue life A steel part having a long rolling contact fatigue life and capable of further increasing the life of a bearing under severer using condition than usual conditions. The steel part includes steel having a composition containing 0.7% by mass to 1.1% by mass of C, 0.5%... | 02/21/2012 |
| 7393420 | Steel tube for bearing element parts and method of manufacturing as well as machining the same Steel tubes for bearing element parts according to the present invention, wherein the specific compositions are limited and an accumulation intensity of {211} face along with an impact property at ambient temperature in the longitudinal direction of steel tube are s... | 07/01/2008 |
| 6802915 | Manufacturing method of a pushing block for a CVT belt A pushing block for the CVT belt has a hyper-eutectoid structure overall and exhibiting a structure in which spheroidal cementite having an area percentage of 0.4% or more are dispersed in a matrix of a martensite. ... | 10/12/2004 |
| 6800152 | Process for making iron-based casting alloy A process for making an iron-based casting alloy is performed by combining an iron-carbon-chromium system with primary carbides of vanadium, niobium, titanium, or combinations thereof without eutectic carbides of vanadium, niobium and titanium. Eutectic chromium car... | 10/05/2004 |
| 6620262 | Method of manufacturing inner and outer races of deep groove ball bearing in continuous annealing furnace The continuous annealing furnace has two or more treatment chambers sequentially connected with each other and respectively filled with a gas atmosphere differing in carburizing property, which includes a carburizing chamber wherein roller members to be t... | 09/16/2003 |
| 6565991 | Composite doctor blade and its method of manufacture A composite doctor blade comprises a steel support band configured with a width and thickness suitable for mounting in a blade holder, with tensile and yield strengths suitable for a selected doctoring application. A wear resistant strip of high speed ste... | 05/20/2003 |
| 6488787 | Cold workable steel bar or wire and process A machine structural steel bar or wire having a softening degree of at least that of the conventional spheroidization-annealed steel material, excellent hardenability, and improved cold workability, comprising 0.1 to 0.5 wt % of C, 0.01 to 0.15 wt % of Si, 0.2... | 12/03/2002 |
| 6423427 | Composite doctor blade and its method of manufacture A composite doctor blade comprises a steel support band configured with a width and thickness suitable for mounting in a blade holder, with tensile and yield strengths suitable for a selected doctoring application. A wear resistant strip of high speed ste... | 07/23/2002 |
| 6403026 | Steel and process for the manufacture of a component for bearings Steel for the manufacture of a component for bearings, the chemical composition of which comprises, by weight: 0.6%ࣘCࣘ1.5%; 0.4%ࣘMnࣘ1.5%; 0.75%ࣘSiࣘ2.5%, 0.2%ࣘCrࣘ2%; 0%ࣘNiࣘ0.5%; 0%ࣘMoࣘ0.2%; 0%ࣘAlࣘ0.05%; Sࣘ0.04%; the ... | 06/11/2002 |
| 6383317 | Process for the manufacture of a component for bearings and its products Steel for the manufacture of a component for bearings, the chemical composition of which comprises, by weight: 0.6%ࣘCࣘ1.5%; 0.4%ࣘMnࣘ1.5%; 0.75%ࣘSiࣘ2.5%; 0.2%ࣘCrࣘ2%; 0%ࣘNiࣘ0.5%; 0%ࣘMoࣘ0.2%; 0% | 05/07/2002 |
| 6136101 | Casting material for thixocasting, method for preparing partially solidified casting material for thixocasting, thixo-casting method, iron-base cast, and method for heat-treating iron-base cast A thixocast casting material is formed of an Fe--C--Si based alloy in which an angle endothermic section due to the melting of a eutectic crystal exists in a latent heat distribution curve and has a eutectic crystal amount Ec in a range of 10% by weight | 10/24/2000 |
| 4604145 | Process for production of steel bar or steel wire having an improved spheroidal structure of cementite Herein disclosed is a process for producing a steel bar or steel wire having an improved structure of spheroidal cementite. The process is characterized in that a finish rolling is conducted within a temperature range between Ar1 and Ar3 | 08/05/1986 |
| 4581079 | Bearing steel A bearing steel containing about 0.8% to about 1.2% carbon, about 0.5% to about 1.33% manganese, about 0.25% to about 0.7% silicon, about 0.14% to about 0.5% molybdenum, up to about 0.75% chromium and the balance essentially iron has improved hardenabilit... | 04/08/1986 |
| 4448613 | Divorced eutectoid transformation process and product of ultrahigh carbon steels An ultrahigh carbon steel consisting of a structure formed by divorced eutectoid transformation with or without accompanying deformation such that substantially no pearlite is formed, having a fine grained iron matrix stabilized by cementite in spheroidiz... | 05/15/1984 |
| 4375378 | Process for producing spheroidized wire rod A process for producing a wire rod for cold forging comprising: rapidly cooling the wire rod after hot rolling so as to give a rapidly cooled structure to the wire rod and to form a predetermined thickness of scale on the wire rod; and subjecting the rapidly c... | 03/01/1983 |
| 4359351 | Protective atmosphere process for annealing and or spheroidizing ferrous metals Methanol and nitrogen are injected into a furnace utilized for annealing or spheroidizing metal articles. The methanol reacts inside the furnace to provide an atmosphere with a carbon potential that will minimize or prevent carbon removal or carbon additi... | 11/16/1982 |
| 4077812 | Method of working steel machine parts including machining during quench cooling The invention provides a method of working steel machine parts, and it relates to a composite technique consisting of machining and heat-treatment, which makes use of the fact that at temperatures in the vicinity of or above the Ms point during quench coo... | 03/07/1978 |
| 4046598 | Procedure for manufacture of steel band or strip A process for manufacture of a steel band or steel strip, the steel comprising spheroidal carbide particles in a ferritic base, wherein a steel, the major part of which is a carbonaceous ferritic austenite conversion product which is, structurally, at lea... | 09/06/1977 |
| 4023988 | Heat treatment for ball bearing steel to improve resistance to rolling contact fatigue A method (and resulting product) for preparing bearing components is disclosed. Utilizing a low alloy steel shape containing carbon in the range of 0.6-1.5% and containing alloying ingredients in the range of 1-2% selected from the group consisting of Cr,... | 05/17/1977 |
| 4001052 | Hot-rolled low-carbon steel strip with an excellent press-workability capable of forming smooth pressed surface and a method of making the same Hot-rolled low-carbon steel strip with an excellent press-workability capable of forming a smooth pressed surface consisting essentially of up to 0.12 wt. % carbon, up to 0.01 wt. % nitrogen, up to 0.0094 wt. % boron, and other specific optional ingredien... | 01/04/1977 |
