Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 6712914 | Non-heat treated crankshaft A non-heat treated crankshaft which comprises, in % by mass, C: 0.30 to 0.35%, Si: 0.40 to 0.80%, Mn: 1.00 to 2.00%, S: 0.040 to 0.080%, Cr: 0.10 to 0.30% and V: 0.05 to 0.20%, with the balance being Fe and impurities, and of which microstructure is a ferrite-pearli... | 03/30/2004 |
| 6648995 | Method of quenching workpiece with hole, assistive tool for use in quenching, and crankshaft A ferrite core partly covered with ceramics members is loaded into an oil hole defined in a pin, and high-frequency induction hardening is effected on the pin while the ferrite core is being held in position by copper wires. At the same time, a magnetic f... | 11/18/2003 |
| 6443214 | Method for heat treating mold cast product A method for heat treating a mold cast product by releasing the product from a mold and hardening the product. Since the mold release is performed when a surface layer of the product held in contact with the mold has a hardening allowing temperature and a... | 09/03/2002 |
| 6210503 | Roller pin materials for enhanced cam durability A low friction, wear-resistant pin for a cam follower roller useful in the injector and valve trains of internal combustion engines, particularly diesel engines, to enhance cam durability and life is provided. The material selected for the pin, which is s... | 04/03/2001 |
| 6020025 | Method of manufacturing a crank shaft A crank shaft is constructed only at the surface layer of a journal portion with a hard nitride layer, so that the resultant crank shaft is available at a low cost, not so heavy and excellent in durability in comparison with a case employing a hard materi... | 02/01/2000 |
| 5906691 | Induction hardened microalloy steel having enhanced fatigue strength properties Improved fatigue strength properties are achieved in an induction hardened microalloy steel useful for demanding service environments. The microalloy steel has low carbon and sulfur contents, comprising in % by weight, 0.15% to 0.45% C, 0.50% to 1.60% Mn,... | 05/25/1999 |
| 5551995 | Spheroidal graphite cast iron for crank shafts and a crank shaft manufactured from such cast iron Spheroidal graphite cast iron for crank shafts having a tensile strength of 75 kgf/mm2 or more, and having excellent conformability and machinability, which cast iron consisting, by area ratio, of graphite of 5 to 15%, ferrite of not more than ... | 09/03/1996 |
| 5545267 | Steel product for induction-hardened shaft component and shaft component using the same The present invention provides a steel product, for all induction-hardened shaft component, which can prevent quench crack and has an excellent torsional strength of not less than 160 kgf/mm2, and a shaft component using the steel product. The ... | 08/13/1996 |
| 5542990 | Camshaft A camshaft made of cast iron containing at least one element selected from the group consisting of Bi, Te, Se, As, Sb and Sn in a total amount of 0.0001 to 0.1 weight %, preferably, 0.001 to 0.1 weight %. The cast iron may further contain at least one ele... | 08/06/1996 |
| 5499936 | Monolithic metallic drive shafts which are resistant to corrosion and wear A monolithic metallic drive shaft for a marine propulsion device is disclosed which is resistant to corrosion. The drive shaft comprises proximal and distal end portions, each of which has a predetermined surface hardness. The surface hardness of one of t... | 03/19/1996 |
| 5122204 | Camshafts A method of producing a chilled iron camshaft is described, wherein the iron has a white iron structure adjacent chill inserts in a casting mould and a grey iron structure in substantially all other regions remote from the chills. The method comprises the... | 06/16/1992 |
| 5114499 | Method of forming chilled layer The surface of a metal workpiece is remelted by a heat producing energy beam so as to form a molten metal layer thereon. While remelting the surface, a magnetic field is generated coaxially with the energy beam and is applied across the molten metal layer... | 05/19/1992 |
| 5096511 | Method and a device for thermal surface-hardening of metal workpieces The invention concerns a method for thermal surface-hardening of metal workpieces, in particular of shaft ends, by means of a laser source with which, if necessary, with relative movement of workpiece and laser source, the workpiece surface to be hardened... | 03/17/1992 |
| 4905538 | Camshaft A camshaft of a valve operating system for an internal combustion engine, is formed of iron-based alloy casting and has cam sections, each of which is in slidable contact with a heat resistant tip of a rocker arm. The cam section is formed at its surface ... | 03/06/1990 |
| 4895700 | Low grade material axle shaft A new SAE 1541M alloy steel composition consisting essentially of 0.40-0.48% carbon, 1.35-1.61% maganese, 0.16-0.30% silicon, 0-0.23% chromium and the balance iron and other materials not affecting hardenability of the steel, especially adapted for formin... | 01/23/1990 |
| 4787944 | Process for producing surface remelted chilled layer camshaft In a process for producing a surface remelted chilled layer camshaft by using a high density energy irradiation and self-cooling, a cam is rotated around the center axis of the camshaft and a position of a torch for the irradiation (e.g., a TIG arc torch)... | 11/29/1988 |
| 4761192 | Method of and apparatus for remelting and hardening a shaft A method of and an apparatus for remelting and hardening an elongate workpiece such as a shaft having a plurality of axially spaced shaft portions to be processed. The shaft is held in a second position, heated, and thereafter transferred to a first posit... | 08/02/1988 |
| 4718952 | Process for producing a remelted and chilled camshaft A process for producing a remelted and chilled camshaft comprises the steps of melting a sliding cam surface by TIG arc and forming a chill layer by self-cooling. When two adjacent cams are in positions at which a mutual influence from the magnetic arc bl... | 01/12/1988 |
| 4661676 | Process for producing camshaft with cams subjected to remelting chilling treatment A process for producing a camshaft with cams include the steps of forming a surface hardened layer in each of the cams by a remelting chilling treatment using high density energy (e.g., a TIG arc), characterized in that after the remelting chilling treatm... | 04/28/1987 |
| 4043847 | Hardening process for crankshafts A hardening process for a crankshaft which includes subjecting the crankshaft to a first induction hardening process to produce a hardened layer of a substantial thickness at all bearing locations and at all transitional points between the crank pins, jou... | 08/23/1977 |
