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Patent # Description
US-4,571,440 Continuous process for the production of alkylene glycol in the presence of organometalate
A continuous process for making alkylene glycols by the hydrolysis of alkylene oxides in the presence of selectivity-enhancing organometalate wherein the...
US-4,571,360 Foam composition used in paper treatment
Foamable compositions having low concentrations of select foaming agents provide uniform distribution of paper treating agents onto moving paper, including high...
US-4,571,304 Novel polyester polyols and mixtures made therefrom
The present invention is directed to a polyester polyol having an hydroxyl number of from about 25 to about 130 and an acid number of 2 or less, produced by...
US-4,571,249 Apparatus for the conversion of coal to gas, liquid and solid products
An apparatus is provided for converting coal to gas, liquid and solid products, which comprises a single vessel including a pyrolysis chamber (20) disposed in...
US-4,570,019 Method of preparing polyethylene polyamines having improved color
A process is provided which may be run continuously for producing polyethylene polyamines having improved color characteristics which comprises treating...
US-4,569,394 Method and apparatus for increasing the concentration of proppant in well stimulation techniques
A method and apparatus are shown for treating a subsurface earth formation penetrated by a well bore. A proppant is blended with a foamable carrier to form a...
US-4,568,821 Remote water heater controller
An apparatus and method for controlling a domestic hot water heater system in which the actual temperature of the water in the storage tank of the system is...
US-4,568,790 Process for oxydehydrogenation of ethane to ethylene
A process for the low temperature oxydehydrogenation of ethane to ethylene uses a calcined oxide catalyst containing Mo, V, Nb, and Sb.
US-4,568,746 Catalytic preparation of diethylenetriamine
A process for the production of an amine composition with a high proportion of diethylenetriamine to piperazine comprising reacting ethylenediamine with itself...
US-4,568,301 Magnetically controlled toy
A flight unit is tethered by a thread to a base with the thread being attached to the flight unit at a point offset from the longitudinal center of gravity of...
US-4,568,094 Alignment system for vehicle load bed
An elevating system for a vehicle load bed including a vehicle suspension system incorporating a support assembly pivotally mounted at one end to the load bed...
US-4,567,226 Elastomeric block copolyamides
Block copolyamides consisting of from 1 to 80% by weight of hydrogenated telechelic diene polymers having M.sub.n molecular weight of from 400 to 6000 and from...
US-4,566,977 Non-aqueous slurries used as thickeners
Described herein is an improved non-aqueous slurry suitable for use as a thickener or viscosifier in oil or gas drilling, fracturing, flow diversion, completion...
US-4,565,527 Method and apparatus for training a human by feedback enhanced learning
A sensing frame is positioned so that a basketball will pass through a rectangular shaped opening in the sensing frame when a free throw shooter shoots the...
US-4,564,715 Preparation of monoalkylene glycols in two stages
High selectivity to monoalkylene glycol is obtained by contacting in an associated moiety-forming zone alkylene oxide and a selectivity enhancing, dissociatable...
US-4,563,549 Reversing switch
A reversing switch comprises a mounting plate assembly with a hub adapted to extend forwardly through a wall of an explosion proof enclosure. A shaft is...
US-4,563,503 Polycarbonate compositions having improved impact performance
A thermoplastic compositions comprising an aromatic polycarbonate resin and a copolymer of C.sub.1 -C.sub.18 alkyl acrylate with a hydroxy C.sub.1 -C.sub.18...
US-4,563,309 Production of carboxylic anhydrides from methyl carboxlyates using rhodium complex catalysts
A process for the production of organic carboxylic anhydrides by the catalytic reaction of a methyl carboxylate and carbon monoxide in contact with a homogeneous...
US-4,562,272 Process for preparing cyclic polyethers
The invention relates to a process for preparing cyclic polyethers from cyclic alkylene carbonates in the presence of a solvent, wherein the process is carried...
US-4,562,097 Process of treating fabrics with foam
A continuous process for the application of a textile treating composition in the form of a froth or foam to a substrate such as textiles. The process enables...
US-4,561,948 Electrochemical neutralization of acid electrolyte
A process for electrochemical neutralization of acid electrolyte, such as acid mine drainage. A vessel is provided with an anode electrically connected to a...
US-4,561,816 Remote manipulator arm for nuclear generator repair
A remote manipulator arm for positioning and operating tube sheet repair tools within a nuclear generator shell. The arm includes a number of arm segments linked...
US-4,560,813 Processes for the production of alkylene glycol in the presence of organometalate
In processes for making alkylene glycols by the hydrolysis of alkylene oxides in the presence of selectivity-enhancing metalate anion-containing material,...
US-4,560,451 Electrolytic process for the production of alkene oxides
Alkene oxide can be made in a simple, closed process that uses electrolysis to make bromine and hydroxide from bromide and water. The alkene reacts with bromine...
US-D281,844 Countertop showcase
US-4,559,397 Storage stable oligourethanes which are self cross-linking at elevated temperature or can be cross-linked with...
The present invention is directed to oligourethanes which are stable in storage at room temperature and either self cross-linking at elevated temperatures or...
US-4,558,146 Process for preparing vinylaminosilanes
A process for preparing vinylaminosilanes in which an aminosilane of the formula HSi(NRR').sub.x (R").sub.3-x is reacted with an alkyne of the formula...
US-4,557,904 Integral reactor apparatus
Integral apparatus is disclosed for fluidized bed reaction systems wherein one or more of the following system component elements are positioned in a unitary...
US-4,557,809 Electrochemical synthesis of zerovalent transition metal organophosphorus complexes
An electrochemical process is provided for the production of a zerovalent metal/organo-phosphorus ligand complex by passing a current through an electrolyte bath...
US-4,557,661 Robot safety mechanism
In accordance with the present invention an industrial robot (10) having a lifting or gripping arm (16) is provided with electrical switch means (44) whereby if...
US-4,557,325 Remote control fracture valve
In a petroleum well fracturing context, where the fracturing fluid is an inert gas such as nitrogen, the valve which must be opened to vent the well following...
US-4,556,257 Horizontal edna miner
A mining machine is utilized for making original generally horizontal bores in coal steams, and for enlarging preexisting bores. A single cutting head is mounted...
US-4,555,883 Hoop beam equipped precast silo construction
An upright generally cylindrical bin is provided including a plurality of peripherally spaced upstanding structural members relatively anchored at their lower...
US-4,555,534 Uniformly pigmented, low shrinking polyester molding compositions
There is disclosed thickened, low shrinkage polyester molding compositions having improved pigmentation. The improved pigmentation in thickenable polyester...
US-4,555,449 Magnetic recording medium
Described herein is a magnetic recording medium comprising a substrate and a magnetic recording layer thereon comprising a cured binder and magnetic particles,...
US-4,555,413 Process for preparing H.sub.2 evolution cathodes
A process for preparing hydrogen evolution cathodes comprises plasma spraying or flame spraying AB.sub.5 intermetallic compound powder alone or in association...
US-4,555,196 Tanning wand
A tanning wand for dispensing tanning oil and the like from a container is provided and consists of a housing having a pair of opposite extending end walls, a...
US-4,555,055 Method of making centrifuge screen baskets
A method of making a frusto-conical centrifuge screen basket of side-connected segments formed of wedge-shaped screen wires connected and backed by tie bands...
US-4,554,941 Fluid vibration apparatus
Apparatus for generating a pressure pulse in a fluid comprising a pipe, an opening into said pipe for filling said pipe with fluid, a piston mounted in the pipe,...
US-4,554,930 Pressure sensing device and method for preventing ulcer formation
A pressure sensing device includes a sensor for continuously measuring the pressure on a patient's skin at the interface between the skin and a surface exerting...
US-4,554,315 Thermoplastic resinous blend and a method for its preparation
A thermoplastic blend comprising a C.sub.1 -C.sub.4 (alkylene terephthalate), a polycarbonate resin and a butadiene or an acrylate based graft copolymer was...
US-4,553,881 Slurry pump tram control apparatus
Method and apparatus are described for removing material from a sump. The sump has substantially parallel and elongated sidewalls and has a longitudinal axis....
US-4,552,911 Polycarbonate molding compositions having improved flame retardance
The present invention relates to polycarbonate molding compositions containing additives of alkali or alkaline earth metal salts, tetrahalogenophthalimides and...
US-4,552,557 Inflatable uterine hemostat
An inflatable intrauterine device to control uterine bleeding, which can also be adapted to permit drainage or aspiration of accumulated blood or mucosal debris...
US-4,551,987 Solar assisted heat pump heating and cooling system
A heating and cooling system for domestic and commercial use which includes a reversible refrigeration system in the form of a heat pump combined with an...
US-4,551,566 Process for the production of alkylene glycols
The process for the liquid-phase hydration of a vicinal alkylene oxide(s) to the corresponding alkylene glycol(s) comprising carrying out such hydration in the...
US-4,551,547 Biocidal 2-aryl-1, 3-cyclopentanedione enol ester compounds
2-Aryl-1,3-cyclopentanedione enol ester compounds exhibit outstanding acaricidal and herbicidal activity.
US-4,551,540 Substituted 2,5-dimethylpyrroles
N-substituted 2,5-dimethylpyrroles and a method for their preparation. The method requires the reaction of a 2,5-hexadione such as acetonylacetone with a...
US-4,551,539 Substituted 2,5-dimethylpyrroles
N-substituted 2,5-dimethylpyrroles and a method for their preparation. The method requires the reaction of a 2,5-hexadione such as acetonylacetone with a...
US-4,551,527 Salts of 5,5-bis-(bromomethyl)-2-hydroxy-2-oxo-1,3,2-dioxaphosphorinane and process for preparing same
A process for preparing polyvalent metal and amine salts of the indicated phosphorinane (an acid). The salts are isolated as such and are effective, in small...
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