Abstract: A bearing for use with a snowmobile track is disclosed. The bearing includes an axle surrounded by a sleeve which is free to rotate when the snowmobile track is driven by the machine. The rails of the suspension systems of the snowmobile ride on the rolling surface resulting in reduced friction. The bearing can be used in a clip on the track or can be included in the track itself. A lubricious coating is utilized to reduce friction between the axle and the sleeve or bushing rotating about the axle.

Abstract: A bearing for use with a snowmobile track is disclosed. The bearing includes an axle surrounded by a sleeve which is free to rotate when the snowmobile track is driven by the machine. The rails of the suspension systems of the snowmobile ride on the rolling surface resulting in reduced friction. The bearing can be used in a clip on the track or can be included in the track itself.

Abstract: A high isolation voltage optocoupler includes spaced apart emitter and detector elements coupled to one and the other ends of a bar of light transmissive dielectric material. A reflective coating on the surface of the bar enhances light coupling. An opaque dielectric housing excludes ambient light and provides mechanical support for the coupling elements.

Abstract: A curvilinear cradle for supporting an object such as a pipe has a durable polyurethane elastomer lining on its concave surface to thereby prevent wear due to movement of the supported object. The cradle also has at least one mounting bracket attached to its convex surface for securing the cradle to a base object such as a pipe H frame.A method for making the curvilinear support cradle primarily includes the steps of spinning a pipe along its longitudinal axis, bulk injecting a polyurethane elastomer into the spinning pipe to create a centrifugally spin casted coating on the inner surface of the pipe, and cutting the pipe lengthwise to obtain at least two lined cradles. Preferably one or more mounting brackets are attached to the pipe prior to the step of spinning, and the pipe is transversely divided on each side of the mounting brackets to provide a plurality of relatively shorter cradles.

Abstract: A method of treating an agricultural product, including the steps of placing the product within a storage container; providing a forced air supply to the container; introducing a gaseous chemical into the container, the particular chemical being selected for minimal sorption of the chemical by the product; and circulating the air and chemical mixture within the container through the product at a low rate of flow, utilizing the forced air supply, for a time sufficient to evenly distribute the chemical throughout the product volume. The rate at which the air is circulated is less than approximately 0.006 cfm/bu and is preferably maintained approximately between 0.0015 cfm/bu and 0.0008 cmf/bu. Hydrogen phosphide (phosphine) gas generated from aluminum phosphide is preferred as the chemical when the process is used for fumigation, but other gaseous fumigants exhibiting a low rate of sorption by agricultural products may also be used.

Abstract: The optocoupling between an optical source and an optical sensor is enhanced while retaining a high dielectric strength by providing a homogeneous medium surrounding the source and the sensor having an inner light transmissive region and an outer light reflective region encapsulated within a substantially opaque body. The homogeneous medium is formed by applying an optically transmissive material to the source and sensor and no more than partially curing said material before applying an optically reflective material which, when fully cured along with the optically transmissive material, does not form an isolation degrading boundary therebetween.