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Graham v. John Deere Co., 383 U.S. 1 (1966), was a case in which the United States Supreme Court clarified the nonobviousness requirement in United States patent law, [1] set forth 14 years earlier in Patent Act of 1952 and codified as 35 U.S.C. § 103.
There are many different kinds of honing oils to suit different needs. It is important to use the appropriate solution for the job. In the case of knife sharpening, motor oil is too thick or heavy and can over-lubricate or clog a sharpening stone, whereas WD-40 is too light an oil and will not carry the metal filings plus stone dust (collectively known as swarf) away from the stone, and clog it.
19th century. Deere & Company began when John Deere, born in Rutland, Vermont, United States, on February 7, 1804, moved to Grand Detour, Illinois, in 1836, [5] to escape bankruptcy in Vermont. Already an established blacksmith, Deere opened a 1,378-square-foot (128 m 2) shop in Grand Detour in 1837, which allowed him to serve as a general ...
Honing uses a special tool, called a honing stone or a hone, to achieve a precision surface. The hone is composed of abrasive grains that are bound together with an adhesive. Generally, honing grains are irregularly shaped and about 10 to 50 micrometers in diameter (300 to 1500 mesh grit). Smaller grain sizes produce a smoother surface on the ...
United States v. Standard Oil Co. of New Jersey, 173 F. 177 (C.C.E.D. Mo. 1909) The Standard Oil Company conspired to restrain the trade and commerce in petroleum, and to monopolize the commerce in petroleum, in violation of the Sherman Act, and was split into many smaller companies. Several individuals, including John D. Rockefeller, were fined.
Light mineral oil (paraffinum perliquidum) is used as a honing oil when sharpening edge tools (such as chisels) on abrasive oil stones. Mineral oil USP or light mineral oil can be used as an anti-rust agent for their blades. It is an inexpensive alternative for storing reactive metals, such as the alkali metals, lithium, potassium and sodium. [31]
Case-hardening. Colt Peacemaker, showing discoloration from case-hardening. Case-hardening or carburization is the process of introducing carbon to the surface of a low carbon iron or much more commonly low carbon steel object in order to enable the surface to be hardened. Iron which has a carbon content greater than ~0.02% is known as steel.
Naphthenic oils have been proven to be suitable in the tyre oils segment because of their low content of polycyclic aromatic hydrocarbons (PAHs), which are hazardous to health and the environment. 3. Lubricating oils. Base oils are needed to manufacture products such as greases and industrial lubricants.
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