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| Number | Title | Issue Date |
| 4220481 | Label stripping apparatus and method During the labeling of a vial, mislabeling can occur. The unwanted label is cleanly and economically removed by forcing the vial through a novel collet-cutter. The cutter has at least two cutting edges and two slots. The slots permit expansion of the diam... | 09/02/1980 |
| 4203728 | Fuel composition comprising a coal-oil slurry In the process of preparing a slurry comprising oil and comminuted coal for transport through pipelines and use as fuel, the improvement of increasing the suspension stability of the coal particles in the oil by oxidizing the surface of the coal particles... | 05/20/1980 |
| 4162341 | Honeycomb insulation structure Method is disclosed for preparing a honeycomb insulation structure having its cells partially filled with a low density foam and a high density integral skin completely covering one edge of the honeycomb. Method comprises placing one edge of a honeycomb i... | 07/24/1979 |
| 4141387 | Universal steam trap insulator An insulator having a universal configuration can be placed around many different types of steam traps. The insulator comprises a housing having suitable openings for water drainage and testing of the trap by an ultrasonic probe, and thermal insulation. U... | 02/27/1979 |
| 4132742 | Process for making codimers of norbornadiene and phenylacetylenes using a cobalt catalyst Novel codimers (I) of norbornadiene and phenylacetylenes and their hydrogenated derivatives (II), having the following structures ##STR1## wherein R is a hydrogen, a phenyl, or a phenyl having alkyl substituents and R1 is a phenyl or a phe... | 01/02/1979 |
| 4132711 | Process for preparing nitriles A process for the preparation of aromatic nitriles which comprises reacting an organic carboxylic acid with an aromatic o-dinitrile whereby the nitrile of the acid is obtained with cyclic imide by-product and the imide by-product is converted to dinitrile... | 01/02/1979 |
| 4113763 | Process for cyanohydrin esters A single step, non-aqueous process for the preparation of aromatic cyanohydrin esters by reacting together an aromatic aldehyde, an alkali metal cyanide, and a lower aliphatic acid anhydride. The cyanohydrin esters are useful as intermediates to potent in... | 09/12/1978 |
| 4113384 | Viscosity measuring system A method for measuring the viscosity of a lubricant fluid under very high pressures by placing a sample of lubricant containing one or more ruby crystals (~10μm diameter) in a diamond anvil cell illuminated with a point source of visible light radiation,... | 09/12/1978 |
| 4110409 | Process for making codimers of norbornadiene and alkynes using a cobalt catalyst Norbornadiene and an alkyne are catalytically codimerized in the presence of a homogeneous catalytic system of cobaltic or cobaltous acetylacetonate, 1,2-bisdiphenylphosphino ethane and an alkyl aluminum chloride. Also, novel codimers of norbornadiene and... | 08/29/1978 |
| 4110250 | Ammoxidation process and catalyst An ammoxidation process for the preparation of nitriles by reaction of an alkyl substituted armoatic hydrocarbon with ammonia and oxygen using as catalyst an -alumina supported vanadium-alkali metal bronze promoted with boron, titanium, and telluri... | 08/29/1978 |
| 4104279 | Process for N-aroylimides A process for making an N-aroyl derivative of an aromatic imide which comprises reacting an aromatic o-dicarboxylic acid anhydride with a nitrile at a temperature of at least about 250° C and in the presence of a labile proton source.... | 08/01/1978 |
| 4094917 | Process for the production of exo-exo hexacyclic dimer of norbornadiene Process involves the continuous production of exo-exo stereoisomer of the hexacyclic dimer of norbornadiene using a three component catalytic system of diethylaluminum chloride, ferric acetylacetonate, and bis(1,2-diphenylphosphino)ethane. Temperature ran... | 06/13/1978 |
| 4094916 | Process for the production of endo-endo hexacyclic dimer of norbornadiene Process involves the continuous production of endo-endo stereoisomer of the hexacyclic dimer of norbornadiene using a three component catalystic system of diethylaluminum chloride, ferric acetylacetonate and triphenylphosphino. Temperature range of reacti... | 06/13/1978 |
| 4093647 | Process for oxycarbonylation of aromatic hydrocarbons A process for making aromatic carboxylic acids by reacting carbon monoxide with an aromatic compound in the presence of a mixture of a thallium salt and a palladium salt whereby highly efficient use of the available oxidant is achieved.... | 06/06/1978 |
| 4093528 | Terephthalic acid process A process for the preparation of terephthalic acid which comprises electrolyzing disodium terephthalate in the anode compartment of an electrolytic cell whereby terephthalic acid product is precipitated and subsequently separated. In a preferred embodimen... | 06/06/1978 |
| 4092230 | Electrochemical process for the manufacture of terephthalic acid A process for making terephthalic acid which comprises electrolyzing an aqueous solution of potassium acid terephthalate, preferably in the presence of a potassium salt of an acid stronger than terephthalic acid. In another embodiment of the invention ter... | 05/30/1978 |
| 4088723 | Method of preparing honeycomb insulation structure Method is disclosed for preparing a honeycomb insulation structure having its cells partially filled with a low density foam and a high density integral skin completely covering one edge of the honeycomb. Method comprises placing one edge of a honeycomb i... | 05/09/1978 |
| 4086286 | Isomerization of tetrahydropolycyclopentadienes to a missile fuel additive Mixed tetrahydropolycyclopentadienes are isomerized in the presence of anhydrous aluminum trichloride to form an additive suitable for use with a high energy missile fuel. The amount of aluminum trichloride present is such that the weight ratio of trichlo... | 04/25/1978 |
| 4086284 | Isomerization of endo-tetrahydrodicyclopentadiene to a missile fuel diluent Endo-tetrahydrodicyclopentadiene is isomerized to its exo-isomer in the presence of aluminum trichloride at a temperature in the range between from about -° C to about 90° C. The mole ratio of AlCl3 to the tetrahydrodiene is in the range betw... | 04/25/1978 |
| 4086276 | Isomerization of cyclohexanebis(methylamine) stereoisomers A process for isomerizing cyclohexanebis(methylamine) by contacting it with an organometallic compound at a temperature of from about 100° to about 200° C.... | 04/25/1978 |
| 4086270 | Process for making terephthalic acid A process for making terephthalic acid of high purity by feeding an aqueous equilibrium hydrolysis solution of terephthalonitrile to a reactive distillation column operated at a temperature of from about 200° C to about 260° C at autogenous pressure whe... | 04/25/1978 |
| 4085594 | Control system for cooling tower fans A control system for automatically controlling the operation of a plurality of fans for a cooling tower so that the minimum number of fans and the lowest speeds are used to provide the required cooling necessary at any one time. The fans are individually ... | 04/25/1978 |
| 4074242 | Point selection and display system A point selection and display system for monitoring various parameters of a process, which enables the operator to select the particular parameters which are to be monitored and to select the particular display panel on which the value of each parameter i... | 02/14/1978 |
| 4073304 | System for calibrating a pump A system for calibrating the flow rate of a pump, and especially designed for a pump which is normally used in a system to blend highly vaporous and odorous fluids, in which the blending fluid discharged from the pump is diverted from its normal flow stre... | 02/14/1978 |
| 4072603 | Process to make technical white oils A process for making technical white oils in a single step hydrogenation and without the need for acid treating to meet white oil specification by hydrogenating a hydrocracked solvent extracted lubricating oil distilling between 650° and 1050° F., havin... | 02/07/1978 |
| 4071086 | Apparatus for pulling tools into a wellbore A pulling tool apparatus for helping equipment descend down a wellbore, such as logging tools being dropped into a deviated wellbore. A first embodiment employs a mass slidably located inside the pulling tool which is acted on so that it is propelled in a... | 01/31/1978 |
| 4071059 | Programmable manual actuator A control system for a gasoline dispensing nozzle which includes a locking system for placing the nozzle in an inoperative mode once the nozzle automatically shuts off. Resetting of the locking system is then required before operation of the nozzle can ag... | 01/31/1978 |
| 4070399 | Hydrogenation of terephthalnitrile A process for the preparation of 1,4-bis-(aminomethyl)cyclohexane by hydrogenating a solvent solution of terephthalonitrile containing at least about 5% by volume of ammonia, said hydrogenation being conducted at a temperature between about 100° and abou... | 01/24/1978 |
| 4070269 | Urea adduction process for refrigeration oil manufacture In the process of manufacturing a refrigeration oil where an oil stock is dewaxed by forming a complex with urea in the presence of an activator, the improvement of adding hot vacuum gas oil to the separated urea complex whereby the activator is flashed o... | 01/24/1978 |
| 4045512 | Melt blending polyamide process Improved melt blending process for preparing block copolymer of poly(4,7-dioxadecamethylene adipamide)-polycaprolactam, which is also known as N-30203-6//6, involves continuing the melt blending until the polymer is characterized in that the maximum amoun... | 08/30/1977 |
| 4045511 | Minimum energy process for preparing block copolymers of polyamides Process for preparing block copolymer involves dry blending salt of a prepolyamide, e.g. a 30203-6 salt, and particules of melt-spinnable polyamide. Blend is heated to a temperature in the range of between from the melting point of higher melting componen... | 08/30/1977 |
| 4044071 | Single step preparation of block copolymer of polyamides Process for forming block copolymer involves mixing dry salt of a prepolyamide and a molten melt-spinnable polyamide. Mixture is heated to a temperature in the range of between from the melting point of higher melting component of the mixture to below ami... | 08/23/1977 |
| 4044042 | Ammoxidation process An ammoxidation process for the preparation of nitriles by reaction of an alkyl substituted aromatic hydrocarbon with ammonia and oxygen using as catalyst an -alumina supported vanadium-alkali metal bronze promoted with boron, titanium, and telluri... | 08/23/1977 |
| 4043763 | Stabilization of dried coal A process for stabilizing lignitic and sub-bituminous coal against spontaneous combustion which comprises mixing as-mined lignitic or sub-bituminous coal with said hot, completely or partially dried lignitic or sub-bituminous coal in an amount to produce ... | 08/23/1977 |
| 4040262 | Ice anchor An anchor frozen into an ice sheet is used primarily for propelling arctic vehicles by providing a stationary structure toward which the vehicle can be winched. The anchor includes a band of high tensile strength material formed in a closed, curved config... | 08/09/1977 |
