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Methods and apparatus for reducing the velocity of a rider in or on an open cockpit vehicle when the rider is thrown from the vehicle.

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Class 423/460 - Treating carbon


Subclass of Class 423 - Chemistry of inorganic compounds
Definition: Processes wherein carbon in the elemental state is treated
No. of patents: 332
Last issue date: 05/08/2012


                9  
NumberTitleIssue Date
4053569Upgrading coal for coking purposes
The invention relates to the upgrading of coal for coking purposes and improved cokes resulting from such upgrading. Pitch obtained as a by-product of pressure-gasification (Lurgi-process) is used as an additive either alone or blended with SRC. The addit...
10/11/1977
4039473Active carbon by potassium ion exchange and leaching of carbonaceous material
A high yield active carbon is obtained from brown coal, lignite and similar carbonaceous materials. The brown coal is converted into a potassium-coal by reaction with an aqueous solution containing potassium ions; the potassium-coal is carbonized (pyrolys...
08/02/1977
4031189Process for preparing composition containing carbon and low sulfur, nitrogen and ash content
Process for the preparation of a composition comprised mainly of carbon and containing only a small amount of ash, nitrogen and sulfur, said process comprising: A. drying a hydrous soot with hot flue gas of about 600° C in a direct current-operated dryer...
06/21/1977
4029749Process for manufacturing needle coke
A process is disclosed for manufacturing needle coke, which process involves the steps of comminuting a coal, dispersing it in a suitable solvent, subjecting the dispersion to hydrogenolysis liquefaction at 360°-480° C and 1-150 Kg/Cm2 H...
06/14/1977
4009305Process for the surface treatment of carbon fibers
A carbon fiber is oxidized to form oxygen-containing functional groups on the entire surface of the fiber and then contacted with ammonia, an organic amine, a lactam, or an amino carboxylic acid at a temperature of 100°-500° C whereby the surfaces of th...
02/22/1977
3962129Impregnation of coke with an organic compound to produce a molecular sieve
Porous coke is impregnated with an organic compound which remains in the pores thereby causing a reduction in the effective size of the same. This results in molecular sieve coke capable of separating different gases, particularly oxygen and nitrogen, and...
06/08/1976
3957958Carbon purification process
In accordance with a preferred embodiment of this invention, a low-sulfur, low-ash, graphitic carbon, which is useful in metallurgical and electrical applications, is formed. The first step is dissolving coke or coal in an iron melt containing about 4% si...
05/18/1976
3953583Grit removal from carbon black
Carbon black is produced in a generally vertically extending reactor in which a feed oil is introduced at the top. Combustion gases are introduced into an upper region of the reactor to supply sufficient heat to decompose the oil to form carbon black. Gri...
04/27/1976
3951856Process for making activated carbon from agglomerative coal
Fluidized bed technique for oxidizing normally agglomerative bituminous coal is disclosed. One high rank bituminous coal is prepared for activation by grinding, briquetting and crushing to the 3/4 inch to 4 mesh size. Thereafter, the coal particles are fl...
04/20/1976
3931392Enhancement of ultimate tensile strength of carbon fibers
A method of enhancing the tensile strength of carbon fibers of laboratory d commercial materials. Carbon fibers are immersed at ambient temperatures in liquid bromine or bromine dissolved in a solvent within a chemical resistant container for a period of ...
01/06/1976
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