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Patent # Description
US-4,158,589 Negative ion extractor for a plasma etching apparatus
Process and apparatus for use in extracting negative ions from a plasma which is particularly useful in reactive ion etching of metals, silicon and oxides and...
US-4,158,588 Copolymers of ethylene, process for producing them and their use
This invention relates to novel quaternary copolymers and their preparation. The quaternary copolymers consist of 70-90 parts ethylene, 0.5-15 parts of an alkyl...
US-4,158,587 Method of producing laminated sheets using laminated pouch support
A method and apparatus is disclosed for producing a laminated sheet wherein a thin film laminate is provided which is formed of a thin film laminating or...
US-4,158,586 Method for producing bent pipe of reinforced synthetic resin
A bent pipe of reinforced synthetic resin is produced by supporting a flexible and elastic tubular mandrel in a stiff and straight position, forming layers of...
US-4,158,585 Washbasin liner method and article
A method of renovating washbasins, such as bathtubs, and the article of a renovated washbasin according to this invention involves a thermoformed sheet of...
US-4,158,584 Ultrasonic method for manufacturing brassiere tapes
Brassiere tapes having a body portion and a pair of overlapping tabs extending outwardly therefrom are manufactured by providing a continuous strip of material...
US-4,158,583 High performance ammonium nitrate propellant
A high performance propellant having greatly reduced hydrogen chloride emission is disclosed comprising a minor amount of hydrocarbon binder (10-15%) and at...
US-4,158,582 Method of making pressed magnetic core components
A method of making pressed magnetic core components having a low core loss property for use in electrical apparatus characterized by reannealing and repressing...
US-4,158,581 Method of making magnetic component for direct current apparatus
A method of making compact cores for use in direct current magnetic apparatus characterized by the steps of severing particles from thin, flat strips of ferrous...
US-4,158,580 Method of making pressed magnetic core components
A method of making pressed magnetic core components characterized by coating particles of annealed low carbon ferrous alloy with a coating of hydrated magnesium...
US-4,158,579 Method for recycling heat treating salts
A system for recycling heat treating salts such as nitrates and nitrites from a rinse bath including means to prevent the excessive build-up of impurities such...
US-4,158,578 Method for forming a carbide layer of a Va-Group element of the periodic table or chromium on the surface of a...
A method for forming a boron-containing carbide layer on the surface of a ferrous alloy article by dipping the article in a molten bath. The bath is made by...
US-4,158,577 High output solar cells
A high output solar cell comprises a three-layer semiconductor compound article, the layers being doped in pn.sub.1 n.sub.2 order in the direction of light...
US-4,158,576 Treating surfaces with liquids
Process and apparatus for the liquid treatment of a surface by projecting sponge-like elements. The said elements are metered seriation from a hopper in a...
US-4,158,575 Cleaning and disinfecting hard surfaces
Soils and bacteria are removed from a hard floor surface by providing two resiliently flexible, transversely parallel strips, applying suction to the space...
US-4,158,574 Hydrolyzed amylaceous product and process of making the same
An amylaceous material having alkaline viscosities in the range of 10 to 20 seconds using a 1.3 g sample and 15 to 20 seconds using a 5.2 g sample and having...
US-4,158,573 Conical centrifugal basket
A conical centrifugal basket suitable for continuously operating sugar centrifuges. The basket has at least two sections connected to each other by screws or the...
US-4,158,572 Process of producing a phthalocyanine pigment
A process of producing a phthalocyanine pigment comprising dry grinding a crude phthalocyanine, stirring the ground product with an aqueous medium containing a...
US-4,158,571 Novel bingham fluids
Bingham fluid compositions are provided which contain a functional material such as a polymerization initiator dispersed in a solid continuous phase, which is a...
US-4,158,570 Preparing magnesium oxychloride and/or oxysulfate cements
A method of preparing magnesium oxychloride and/or oxysulfate cements is described which involves the control of temperature of the magnesium chloride and/or...
US-4,158,569 Fused refractory
Dense fused cast product and fused grain product of material whose microstructure consists essentially of at least 70 volume % chrome-containing corundum solid...
US-4,158,568 Corrosion resistant refractory mix
A corrosion resistant refractory mortar or castable mix is provided comprising a particulate mixture capable of mixture with water to form a castable refractory...
US-4,158,567 Method of screen gravure photoengraving
An improved method of screen gravure photoengraving using a half-tone positive in which the gradation is fully represented by the variations of both sizes and...
US-4,158,566 Aqueous photoresist comprising casein and methylol acrylamide
The addition of N-methylol acrylamide as an accelerator to casein-based aqueous photoresist compositions reduces the baking temperature required to render the...
US-4,158,565 Processes for producing positive or negative dye images using high iodide silver halide emulsions
Processes are disclosed for producing dye images employing photographic elements which comprise a support and coated thereon, at least one radiation-sensitive...
US-4,158,564 Method and apparatus for controlling the gray scale response of a multilayer image forming screen
An electrostatic latent image is impressed on a multilayer apertured screen to establish within the apertures electric fields that modulate the passage of...
US-4,158,563 Low antimonial lead alloy for making grids for use in maintenance free batteries
An electric storage battery grid made from an improved low antimonial content lead alloy is disclosed. The battery grid can be used to manufacture maintenance...
US-4,158,562 Blast furnace testing and control methods
A method for evaluating and/or controlling a blast furnace operation is disclosed wherein the carbon content of off-gases is measured at a test point located...
US-4,158,561 Method for preparing oxide coated microlamination particles
A method for preparing oxide coated microlaminations characterized by heating microlamination particles at a temperature of about 1375.degree. in an atmosphere...
US-4,158,560 Broad spectrum herbicidal diacylimide compositions
The invention provides broad spectrum herbicidal diacylimide compositions which include compounds having the formula: ##STR1## where R and R' are selected...
US-4,158,559 Substituted 2,1,3-benzothiadiazine compounds
New and valuable substituted 2,1,3-benzothiadiazine compounds having a good herbicidal action, herbicides containing these active ingredients, methods of...
US-4,158,558 Potassium polyphosphate fertilizers
A process for the production of a potassium polyphosphate liquid fertilizer in which potassium chloride is reacted with phosphoric acid or polyphosphoric acid in...
US-4,158,557 Method and apparatus for forming fiber mat
A method and apparatus for forming a fiber mat is disclosed. The attenuation rate of the attenuator or strand advancing apparatus is varied as the attenuator...
US-4,158,556 Nitrogen-methane separation process and system
Method and system designed particularly for separating or removing nitrogen from mixtures of nitrogen and methane, particularly natural gas, over a wide range of...
US-4,158,555 Method of cutting of glass strand and product produced thereby
A method of cutting glass fiber strands is disclosed wherein said strands are driven across the beam of an interruptable laser. The laser beam melts the strand...
US-4,158,554 Apparatus for filtering particulate-laden gases
A 24-hour operable baghouse plant with on-line maintenance features. The filter cartridge, comprising a tube sheet and a plurality of vertically suspended...
US-4,158,553 Non-scratching liquid scouring cleanser using abrasives with a Mohs hardness of greater than 3
A liquid scouring cleanser composition which does not scratch soft metals, yet has sufficient abrasive action to clean effectively using abrasives having a Mohs...
US-4,158,552 Entrained flow coal gasifier
An entrained flow coal gasifier wherein a high temperature product gas stream is essentially formed by burning char with air. Additional char, formed by partial...
US-4,158,551 Gasoline-water emulsion
A gasoline-water emulsion suitable for use with conventional automobile engines designed to run on gasoline, with only minor modifications of their carburetion...
US-4,158,550 Apparatus for producing blast furnace coal
A method of producing blast furnace coke from bituminous coals, particularly coals having poor coking capacities in which the coal to be carbonized is ground,...
US-4,158,549 Marijuana scented incense and method of making
An incense produces, when burned, a marijuana-like scent although it does not contain a marijuana component. The incense comprises about 10 parts by weight...
US-4,158,548 Process for removing sulfur from coal
A process for reducing the pyritic sulfur content of coal comprising: (1) contacting coal particles with an aqueous solution of iron complexing agent, and an oxidant;...
US-4,158,547 Method of separating components in a biological fluid
Insolubilized serum protein adsorbent, for example bovine serum albumin, of small particle size is an excellent adsorbent for adsorbable components in a...
US-4,158,546 Composition, test device and method for determining the presence of urobilinogen in a test sample
A novel test composition, device and method for determining the presence of urobilinogen in a test sample. The composition is capable of producing a detectable...
US-4,158,545 Automatic chemical analyzing method and apparatus
In an automatic chemical analyzing method and apparatus in which a plurality of samples each added with a reagent are discretely transported through a reaction...
US-4,158,544 Process for preparing a biological composition for use as a reference control in diagnostic analysis
A process for making a biological composition for use as a blood serum reference composition in diagnostic analysis. The process comprises: (a) adding calcium to...
US-4,158,543 Cleaner for grain and suede leather
Article and process for cleaning grain or suede leather surfaces. The process comprises rubbing over the surface to be cleaned a semi-solid article formed from a...
US-4,158,542 Acyldihydroxybenzene azo dyes for metallized polyolefins
Acyldihydroxybenzene azo compounds of the formula ##STR1## are provided where A represents a benzene radical which is unsubstituted or mono, di, or...
US-4,158,541 Apparatus for calcining green coke
A hollow, high-temperature alloy pipe with motive means to move air there through is employed as a support structure for supporting the feed pipe in a...
US-4,158,540 Process and apparatus for manufacturing molded parts from granulated plastic materials
A process of manufacturing molded parts using a mold with relatively movable parts enclosing a mold cavity which is fed with plasticizable material, comprises...
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