Abstract: A positive drive endless rubber belted track is adapted to be attached to track links of an endless track link assembly. The particular construction of the core and grousers of the belted track permit the rubber belted track to stretch as it passes over the driving mechanism and idler of the machine.

Abstract: A laser beam deflector is useable for protecting underlying portions of an item during laser cutting of overlaying stock. The deflector has a base surface width greater than the overlying stock to be cut and a smooth deflecting surface of an arcuate cross-sectional configuration. The deflector is positionable between the overlaying stock and the underlying portions desired to be protected with the deflecting surface immediately adjacent the overlaying stock.

Abstract: A process for pressure infiltration casting of a metal matrix composite in a metallic article is disclosed. A metallic base component is formed. A portion of the exterior surface of the metallic base component is adapted for mating with a corresponding exterior surface of a preform at an interface. A preform having interconnecting porosity is formed. An infiltration metal for forming a molten infiltrant charge and having a melting temperature "y" at least equal to or greater than the melting temperature "x" of the base metal is selected. A first mold including the base component is provided and preheated to a temperature in the range of (x-200).degree.F. to (x-50).degree.F. A second mold including the preform and the infiltration metal is provided and positioned adjacent the first mold. The second mold, preform and infiltration metal are heated to a temperature in the range of about (y-200).degree.F. to about (y+200).degree.F. The preform is evacuated and a vacuum is isolated in the preform.

Abstract: A fluid filter, such as an oil filter for example, has a canister, a top plate and a sealing ring. The sealing ring overlaps portions of the top plate and canister. The sealing ring and canister are joined one to the other by laser welding about the sealing ring adjacent the canister and forming a mechanical lock between the canister and the top plate by mixing of materials.

Abstract: An improvement in a thermally insulating component for an engine part, made by sintering from ceramic materials, comprises, the thermally insulating component having a composition, consisting of a mixture of zirconium oxide in the range of about 5% to about 25% by volume and mullite in the range of about 75% to about 95% by volume. Further, the mixture of zirconium oxide and mullite is obtained by chemically mixing the zirconium oxide and mullite in their molecular states, rather than mechanically mixing them. Another feature of this invention includes, forming said thermally insulating component by slip casting and pressureless sintering the mixture of zirconium oxide and mullite at a temperature no greater than 1700.degree. C. This improvement in a thermally insulating component for an engine part, made from a mullite-zirconia ceramic composite, embodying the present invention, is particularly useful in making flame decks for cylinder heads, and insulating coverings for pistons and exhaust ports.

Abstract: A process for forming elements for use in high temperature environments includes the following steps. The process mixes metal and/or metal compounds with orthophosphoric acid and adds a filler to form a moldable material. The moldable material is dried at a temperature less than about 100 degrees to form a stable unitary mass and thereafter the temperature is increased to its "false melt" temperature. Pressure is then subjected on the element while maintaining the element at its false melt temperature for densifying the element to a preselected porosity and deforming the element to preselected final dimensions.

Abstract: A thermoplastic polyurethane elastomeric seal composition comprising, by weight, about 90% to 99% thermoplastic polyurethane elastomer and about 1% to 10% fibers. Also, the thermoplastic polyurethane elastomer is derived from the reactants comprising: (i) a mixture of polyol and an aromatic chain extender in a molar ratio in the range of from about 40:60 to about 60:40 of butanediol glycol adipate to hydroquinone bis 2-hydroxyethyl ether, and (ii) 1,5 naphthalene diisocyanate present in a molar ratio in the range of about 50:50 to about 54.5:45.5 of 1,5 naphthalene diisocyanate to the said first mixture of polyol and an aromatic chain extender. After curing, the thermoplastic polyurethane elastomeric seal compound has outstanding wear resistance and low compression set.This thermoplastic polyurethane elastomeric seal compound is particularly useful in making shaft seals subject to high wear and high pressure, for use in hydraulic rams in earthmoving equipment.

Abstract: A deep hardening boron steel has a composition comprising, by weight, about 0.23% to 0.37% carbon, about 0.40% to 1.20% manganese, about 0.50% to 2.00% silicon, about 0.25% to 2.00% chromium, about 0.20% to 0.80% molybdenum, from 0.05% to 0.25% vanadium, from 0.03% to 0.15% titanium, from 0.015% to 0.050% aluminum, from 0.0008% to 0.009% boron, and 0.005% to 0.013% nitrogen. Also, the composition preferably contains less than about 0.025% each of phosphorus and sulfur. After quenching and tempering, articles made from this material are substantially free of aluminum nitrides, have a fine martensitic grain structure, have a distribution of nanometer size background nitride, carbonitride, and carbide precipitates, and a combination of high hardness and fracture toughness.The deep hardening steel article embodying the present invention is particularly useful for ground engaging tools that are subject breakage and wear, often at high temperature.

Abstract: A glow plug has a heating element and a ceramic silicon nitride tip which has an outer surface. A low porosity refractory metal oxide coating covers at least a portion of the tip outer surface. A catalyst wire, with a diameter of 0.008 inches, is wrapped about and connected to the coated glow plug tip. The wire is formed of one of the platinum group metals and the wire is free of charge carrying connection to a power source.

Abstract: A glow plug has a heating element having a tip formed of a preselected material includes a catalyst wire wrapped about and in intimate contact with the preselected material of the glow plug. The catalyst is formed of one of the platinum group metals, transition metals and combinations thereof and is in the form a wire with a diameter of 0.008 inches. The catalyst is free of charge carrying connection to a power source.

Abstract: A process for applying a uniformly adherent protective tantalum oxide coating on a portion of a ceramic glow plug for protecting the glow plug against the corrosive/erosive environment generated by the burning of alternative fuels in a diesel engine. The coating is tantalum oxide deposited on a silicon nitride glow plug by plasma spray deposition techniques.

Abstract: A composition and process are disclosed for constructing a diesel engine element, such as for example, a valve guide which will withstand the friction of various tribological locations in a diesel engine when operating the engine at elevated temperatures and/or on alternative fuels. The composition is one of a glass,glass-ceramic, and mixtures thereof matrix having graphite particles. In the process, a unitary element is formed from the mixture and thereafter is sintered for a time and temperature sufficient to obtain a preselected density.

Abstract: A composition and process are disclosed for constructing a diesel engine element, such as for example, a valve guide which will withstand the friction of various tribological locations in a diesel engine when operating the engine at elevated temperatures and/or on alternative fuels. The composition is one of a glass,glass-ceramic, and mixtures thereof matrix having graphite particles. In the process, a unitary element is formed from the mixture and thereafter is sintered for a time and temperature sufficient to obtain a preselected density.

Abstract: A reinforced plastic composition that possesses excellent wear resistance and weld line strength without a significant increase in the flexural modulus. The reinforced plastic composition for forming molded and extruded products has a plastic matrix with a plurality of fibers dispersed therein. The fibers are present in the range of about 1% to about 30% by weight of the plastic matrix. The reinforced plastic composition has a weld line strength greater than 66% of the weld line strength of the plastic matrix without the fibers. The plastic composition is particularly useful for making thrust washers, pump seals, piston rings and other dynamic bearing and sealing components for engines, transmissions and drivelines.

Abstract: A fuel storage and delivery apparatus for providing one or more non-miscible fuels to a multi-fuel engine has a fuel reservoir adapted for storing first and second non-miscible fuels in communication with each other. The first and second fuels define a phase interface therebetween. The fuel reservoir has a bottom, and first and second outlets adapted to respectfully receive first and second fuels. The first and second outlets are positioned adjacent the bottom and the phase interface. The fuel delivery apparatus has means for respectfully maintaining the first and second outlets adjacent the bottom and the phase interface. The fuel delivery apparatus also has means for sensing the fluid levels of the first and second non-miscible fuels in the reservoir, and producing fluid level signals in response to the sensed fluid levels.

Abstract: A coated wear resistant steel article has a basic carburized low silicon steel article of preselected properties including carbides isotropically exposed and having an elevation greater than material adjacent said carbides of said carburized surface and a coating material having a hardness greater than about 1200 Kg/mm covering the material adjacent said carbides of said carburized surface. In another aspect, the coating material is absent and the surface is modified by ion implantation.

Abstract: A spring of a position sensor is coated with a coating which consists of diglycidyl ether of bisphenol A, polysebacice polyanhydride and polytetrafluoroethylene which is hardened by the process of this invention and forms a hardened protective coating which promotes extended life of the sensor.

Abstract: A spring of a position sensor is coated with a coating which consists of diglycidyl ether of bisphenol A, polysebacice polyanhydride and polytetrafluoroethylene which is hardened by the process of this invention and forms a hardened protective coating which promotes extended life of the sensor.

Abstract: A process for forming a low silicon rapid-carburizing wear resistant steel article includes selecting an article formed of a steel material having less than about 0.05% silicon by weight, and carburizing the article for a preselected time and temperature to form an austenitic surface and attain a carburized case depth which is at least 5% greater than the carburized case depth of a similar article formed from a steel material having a range of about 0.09% to about 0.25% silicon by weight and being carburized at substantially same conditions of time and temperature. After quenching, the as-carburized surface transforms into a microstructure of martensite and retained austenite, being substantially free of intergranular oxides. A low silicon rapid-carburizing wear resistant steel article formed according to the present invention is particularly useful for making gears, couplings, shafts, bearings, and similar articles subjected to a combination of high bending loads, surface wear and contact fatigue.

Abstract: A spring of a position sensor is coated with a coating which consists of diglycidyl ether of bisphenol A, polysebacice polyanhydride and polytetrafluoroethylene which is hardened by the process of this invention and forms a hardened protective coating which promotes extended life of the sensor.