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Patent # Description
US-4,840,432 Continuous miner with duct assembly
A self-propelled continuous mining machine includes a mobile frame assembly having a front end portion with a boom assembly pivotally retained thereon. The outer...
US-4,839,132 Process for the preparation of large diameter oriented monofilaments
Oriented polymeric monofilaments having a diameter of at least about 60 mils and excellent uniformity in roundness, are prepared in which a core of...
US-4,838,404 Token operating system for an electronic device
A token and photo-detector circuitry in an electronic device used for supplying electrical power to an external appliance for an amount of time represented on...
US-4,837,866 Shock attenuation tension mounting for face guard
A shock attenuation tension mounting for connecting a face guard to a helmet wherein a pair of looped straps are provided on each side of the helmet. Each pair...
US-4,837,359 Process for the production of polyisocyanates with biuret structures
Polyisocyanates with biuret structures are produced at temperatures above 250.degree. C. More specifically, an excess of a diisocyanate having aliphatically...
US-4,837,267 Tetrafluoroethylene copolymers
Advantageous modification of non-melt processible, fibrillatible TFE copolymers for past extrusion is possible by including small amounts of perfluoro(n-alkyl...
US-4,836,979 Manufacture of composite structures
A method of producing a composite material from a mixture of copper and a low coefficient of thermal expansion nickel-iron alloy (Invar) powder is disclosed...
US-D301,512 Rear sight for a pistol
US-4,835,327 Method for producing 1,2,4-trichlorobenzene
1,2,4-Trichlorobenzene is produced by chlorinating benzene, chlorobenzene, meta-dichlorobenzene, ortho-dichlorobenzene, or a mixture of two or more thereof in a...
US-4,835,299 Process for purifying tertiary organophosphites
A process for purifying tertiary organophosphites by removing secondary organophosphites therefrom.
US-4,834,810 High modulus A1 alloys
High modulus aluminum-base comprise mechanically alloyed aluminum-base compositions contain 10-25% titanium part of which may be replaced by vanadium or...
US-4,834,594 Drill steel drive unit
A chuck to be power driven for rotating drill bits in the mining and construction fields. The chuck is designed to drive one or more telescoped drill steels...
US-4,833,223 High molecular weight polystyrene and method
A method for producing a high molecular weight polystyrene comprises polymerizing styrene monomer and from about 0.01 to about 2.0 parts by weight per 100 parts...
US-4,832,734 Hot working aluminum-base alloys
Discloses hot working by rolling or forging of mechanically alloyed aluminum-base alloys containing 5 to 35 volume percent of an aluminum transition metal...
US-4,832,704 Method for enhancing the desulfurization of hot coal gas in a fluid-bed coal gasifier
A process and apparatus for providing additional desulfurization of the hot gas produced in a fluid-bed coal gasifier, within the gasifier. A fluid-bed of iron...
US-4,831,960 Lubrication of cup-shaped can bodies
Cup lubricating process and apparatus in which cup-shaped can bodies are controllably conveyed in spaced relationship to each other through a lubrication...
US-4,831,240 Electrical high current industrial oven or fryer compression connection
Industrial electric ovens and fryers of the type used for cooking precooked foods such as meats prior to packaging of the food draw high currents which tend to...
US-4,830,712 Process for refining ethylene glycol
A process is described for recovering polyester-grade ethylene glycol from crude ethylene glycol containing at least one component which has a normal boiling...
US-4,829,870 Electric guitar
An electric guitar has a lighter weight and a smaller body thickness profile than electric guitars in predominant use today, while maintaining superior sustain...
US-4,828,921 Polycarbonate molding compositions
A moulding composition comprising a polycarbonate resin and an acrylate-based plating modifier was found to be suitable for preparing metal coated articles where...
US-4,828,520 Modular liferaft
A modular liferaft wherein the canopy, canopy support, floor pads if any, boarding ramp and at least one ballast are detachably attached to a liferaft hull and...
US-4,827,037 Quality of catalytically prepared polyalkylene polyamines
Process for the improvement of the quality of polyalkylene polyamines prepared by the reaction of (i) ammonia and/or an alkyleneamine compound having at least...
US-4,826,933 Polyphenylene ether-polyamide blends
Thermoplastic blend compositions comprise a polyphenylene ether resin, a polyamide resin and a compatibilizing agent present in an amount sufficient to effect...
US-4,826,668 Process for the production of ultra high purity polycrystalline silicon
The present invention is directed to an improved process for producing ultra high purity polycrystalline silicon which process provides for increased production...
US-4,826,078 Wire-to-track-base retainer clip and keeper
Heat treated spring steel, electroplated with zinc, is formed into clips having a base portion that passes under the base of a railway rail and upstanding end...
US-4,826,047 Hand held dispenser for mixing and dispensing two viscous components
This invention relates to a hand held, totally integrated dispenser for mixing and dispensing two viscous components. The dispenser includes a hollow plunger...
US-4,824,907 Preparation of thermoformed plastics articles
Moulded articles of uniform wall thickness are prepared by vacuum-forming or thermoforming a composition comprising a uniform blend of, as base resin, a moulding...
US-4,824,511 Multilayer circuit board with fluoropolymer interlayers
A multilayer circuit board consisting of multiple circuit layers supported on sheets of PTFE or PTFE containing a fibrous stiffening agent, said circuit-bearing...
US-4,824,462 Flow control means for molten glass or the like
Improvements in devices for metering the flow of molten material such as glass include a catenary support structure, internal passageways in the bulbous valve...
US-4,823,995 Container cap
A one piece, resilient, integrally molded container cap consisting of a rotor member, fixed member and a frangible connecting tab. The rotor member has a closed...
US-4,823,732 Atomized particle lubrication of cup-shaped can bodies
Cup lubricating process and apparatus in which cup-shaped can bodies are controllably conveyed in spaced relationship to each other through a lubrication...
US-4,822,925 Organosalts of metalate anions and process for the production of alkylene glycols therewith
Novel vicinal dioxyalkylene organometalates comprising a cation having a hydrocarbyl-containing substituent are disclosed. The vicinal dioxyalkylene...
US-4,822,915 Phosphine and sulfonate bearing ligands
An oligomerization or cooligomerization process comprising passing ethylene or a mixture of ethylene and propylene in contact with a catalyst, in the liquid phase.
US-4,821,608 Chain saw sharpening guide
A chain saw sharpening guide is comprised of a relatively thick rigid and rugged plate metal member which has a threaded bore to receive a micrometer-type height...
US-4,820,673 Alkoxylation using calcium catalysts and products therefrom
Narrow, balanced alkoxylation product mixture distributions having at least one alkoxylation product constituting more than 20 weight percent of the mixture can...
US-4,819,859 Lamination of oxide dispersion strengthened platinum and alloys
Relatively large structures are fabricated from oxide dispersion strengthened platinum or alloys by working a plurality of pieces to thin, wide layers, and then...
US-4,819,501 Self-adjusting brake mechanism
An improved self-adjusting mechanism for a cable-operated vehicle brake is disclosed. The operating lever is pivoted about an axis on a frame member which...
US-4,819,368 Disposable mousetrap
A disposable rodent trap is formed of an aluminum beverage can comprising an internal chamber, a bottom end wall with an opposite end wall including an entry...
US-4,818,776 Photocopolymerizable compositions based on epoxy and hydroxyl-containing organic materials having primary...
This invention is directed to photocopolymerizable compositions comprising an epoxide containing two or more epoxy groups, a poly (active hydrogen) organic...
US-4,818,482 Method for surface activation of water atomized powders
A method for pickling and consolidating water atomized metallic powders to reduce surface oxides. The technique includes introducing the powder into an acid...
US-4,817,786 Drive arrangement for tramming conveyor
A sprocket drive system for a chain conveyor comprises a motor driven transmission which is coupled to a planetary gear unit for speed reduction. The output...
US-4,816,218 Process of using an iron-nickel-chromium alloy in an oxidation attacking environment
The oxidation resistance at elevated temperatures, e.g. 1800.degree. F. of iron-nickel-chromium alloys of specified composition is improved through the control...
US-4,816,217 High-strength alloy for industrial vessels
An austenitic, age-hardenable nickel-iron-chromium alloy exhibiting high-strength, good corrosion and polythionic acid resistance and having a low work hardening...
US-4,814,541 Chemical conversion process
A process for catalytically converting a feedstock into a product comprising contacting the feedstock with crystalline microporous three dimensional solid...
US-4,814,397 Stabilized polyacetal compositions
Incorporation of 0.1-10 weight percent of certain polymers and/or oligomers containing both hydroxy groups and at least one other functional group that is a...
US-4,814,382 Solvent borne high solids coating compositions
High solids coating composition comprising (a) at least one film-forming organic polymer, (b) at least one volatile organic compound, (c) at least one cross-linking agent,...
US-4,814,361 Blends of epoxides and monoepoxides
Described herein are compositions suitable for photocopolymerization comprising (a) an epoxide containing two or more epoxy groups, and (b) a hydroxyl...
US-4,814,359 Process for producing flexible polyurethane foam using hexahydro-S-triazine catalysts
Hexahydro-s-triazines, and in particular hexamethylenetetramine (HMT), can be used in high water (5.0 or more parts per hundred parts of polyol) flexible...
US-4,814,103 Color stable urethane prepolymer
The present invention is directed to the stabilization of a prepolymer based on methylene diphenyl isocyanate rich in the 2,4'-isomer. It was surprisingly found...
US-4,814,075 Feed box assembly
A feed box assembly including a feed box for feeding a slurry or other mixture to a screen, the box having an adjustable gate for controlling the rate and...
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