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Full-Text Articles in Engineering
Method For Forming Articles Having Deep Drawn Portions From Matted Wood Flakes, Gordan R. Debruine, Bruce A. Haataja, L. Bogue Sandberg
Method For Forming Articles Having Deep Drawn Portions From Matted Wood Flakes, Gordan R. Debruine, Bruce A. Haataja, L. Bogue Sandberg
Michigan Tech Patents
An article having non-planar portions, such as a material handling pallet, including a substantially flat deck member and a plurality of hollow leg members projecting integrally from the deck member, is molded as a one-piece unit from a loosely-felted mat formed from a mixture of resinous particle board binder and flake-like wood particles. The leg members are preformed in a separate preform mold or the article forming mold and the mat is deposited on the female die over mold cavities containing the preforms. When the article forming mold is closed, the mat and preforms are compressed into substantially the desired …
Method And Apparatus For Sensing The Regeneration Of A Diesel Engine Particulate Trap, John H. Johnson, Peter V. Woon
Method And Apparatus For Sensing The Regeneration Of A Diesel Engine Particulate Trap, John H. Johnson, Peter V. Woon
Michigan Tech Patents
A diesel engine exhaust system is provided with a particulate trap for collecting the products of incomplete combustion during the engine power cycle. A sensing mechanism including an electrode downstream of the trap and a signal generating circuit provides a positive indication of occurrence of regeneration of the trap. Charged particles generated during regeneration induce a charge of the electrode, that charge activates the signal generating circuit and it, in turn, produces an indication external of the exhaust system that trap regeneration is occurring. That indication can be in the operator’s compartment.
Biocidal Treatment Of Materials With Catechins, Peter E. Laks
Biocidal Treatment Of Materials With Catechins, Peter E. Laks
Michigan Tech Patents
Sulfide derivatives of catechins derived from condensed tannins have broad spectrum biocidal characteristics. Epicatechin-4-alkylsulfides and cupric complexes thereof containing up to 20, preferably 5 to 15, carbon atoms are particularly effective biocides against wood rotting fungi and gram-positive bacteria. Such sulfides are prepared by reacting condensed tannin, either in the form of a purified tannin extract or comminuted plant tissue, with an appropriate thiol under mild acidic conditions.
Method Of Magnetizing Nonmagnetic Materials, Jiann-Yang Hwang
Method Of Magnetizing Nonmagnetic Materials, Jiann-Yang Hwang
Michigan Tech Patents
Particles of a nonmagnetic material are rendered magnetic by contacting their surfaces with a magnetizing reagent comprising water containing particles of a magnetic material, each of which has a two layer surfactant coating including an inner layer and an outer layer. The inner layer covers the magnetic particle and is a mono- molecular layer of a first water soluble, organic, hetero- polar surfactant containing at least 3 carbon atoms and having a functional group on one end which bonds with the magnetic particle. The outer layer coats the inner layer and is a monomolecular layer of a second water soluble, …