| Patent Number |
Title Of Patent |
Date Issued |
| RE30481 |
Process for reducing the processing time in the production of polyesters |
January 13, 1981 |
| Polyesters obtained by reacting isophthalic acid or terephthalic acid with a polyol with or without a catalyst in a first stage to form a half-ester mixture which is reacted in a second stage with an aliphatic polycarboxylic acid are produced at reduced processing times. In the first |
| RE30022 |
Pusher ram and quench car travel synchronization system |
June 5, 1979 |
| An electrical pulsing unit in the pusher ram drive emits a pulse for every preselected incremental distance traveled by the ram from the face of the oven at the start of the push to the completion of the push. The pulses are received in the quench car locomotive and are converted to sign |
| RE28981 |
Refractory shapes and jamb structure of coke oven battery heating wall |
September 28, 1976 |
| Novel shapes of refractory jamb bricks are disclosed which are readily removable and replaceable without tearing down and rebuilding the novel jamb structure of a heating wall of a coke oven battery. |
| 4769230 |
Process for preparation of arsenic acid |
September 6, 1988 |
| Arsenic acid is formed from arsenous acid and water under oxygen pressure with catalytic amounts of nitric acid and a halide whereby the nitric oxide by-product is regenerated to nitric acid for contact with fresh arsenous acid. |
| 4742663 |
Concealed load distribution means for wooden beams |
May 10, 1988 |
| Wooden beams containing concealed load distribution means embedded therein are disclosed herein. The wooden beams may be either laminated or unitary. The load distribution means is comprised of an elongated member suitably adapted such that loads exerted on the elongated member are there |
| 4732320 |
Railroad grade crossing with transverse securing splines |
March 22, 1988 |
| A railroad crossing is provided in which gage, transverse end, and outer field panels are joined by means of splines fitted into indentations on side surfaces of the panels whereby pairs of panels are joined together with a spline fitting partly into each side or end of adjoining panels; |
| 4705879 |
Long-chain alkylresorcinol phosphites |
November 10, 1987 |
| Alkylresorcinol phosphites useful as antioxidants in lubricants and greases are provided of the formula: ##STR1## wherein R is selected from H and alkyl, and R.sup.1 is an alkyl, said alkyl having from 8 to 18 carbon atoms and consisting of at least 75% secondary alkyl. |
| 4679658 |
Gaff |
July 14, 1987 |
| A gaff is provided for use in climbing a wooden utility pole (to include trees), said gaff having one or more grooves preferably running along a line parallel to the line formed by the intersection of the planes of its top two sides and/or one or more teeth for cutting into the pole. |
| 4679362 |
Void plug lift insert assembly for a cast concrete product |
July 14, 1987 |
| Articles and a method are disclosed useful for providing a lift insert for a cast concrete product, such as a cast concrete slab or panel. The articles include a threadless plug for temporary insertion into an insert for receiving a lifting device in a cast concrete product, an insertion |
| 4663143 |
Hydrogen storage materials of CeNi.sub.5-x Mn.sub.x alloys |
May 5, 1987 |
| A ternary alloy comprised of cerium, nickel and manganese is characterized in having CaCu.sub.5 hexagonal crystal structure and stoichiometry. Members of a preferred class of compounds, represented by the empirical formula CeNi.sub.5-x Mn.sub.x wherein "x" has a value between 0.1 and |
| 4661378 |
Pavement dressing conditioner formed of tar, an aromatic solvent and a bituminous pavement rejuv |
April 28, 1987 |
| A novel composition for treating asphalt and concrete surfaces is provided formed of a mixture of topped coke oven tar, an aromatic solvent having an API Gravity@ 60.degree. F. of 11-30, Specific Gravity 60.degree./60.degree. F. of from 0.876-0.993, Distillation Range .degree. F. of |
| 4656302 |
Tris-(3-hydroxy-4,6-di-t-alkylphenyl) phosphites |
April 7, 1987 |
| A group of phenolic phosphite compounds having the formula ##STR1## wherein R and R' may be the same or different and are tertiary alkyl groups containing from 4 to 12 carbon atoms. These compounds are disclosed to be useful as stabilizers and antioxidants in various organic material |
| 4656023 |
Hyperstoichiometric zirconium-titanium-chromium iron alloys |
April 7, 1987 |
| Hydrogen storage materials are provided by a quaternary alloy of the formula:wherein x has a value in a range from 0.1 to 0.3, and y has a value in a range from 1.2 to 1.4, and their hydrides. |
| 4645780 |
Novel biocides employing resorcinol derivatives |
February 24, 1987 |
| A method of protecting organic materials from fungi and/or bacteria is provided which comprises applying to said organic material a minor but effective biocidal amount of a compound of the formula: ##STR1## wherein M is selected from H,P and an alkali metal or alkali earth metal |
| 4642393 |
Process for preparing 1,4-dihydroxy, 5,8-dihydronaphthalene and related compounds |
February 10, 1987 |
| 1,4-dihydroxy, 5,8-dihydronaphthalene and related compounds are provided from benzoquinone, and 1,3-butadiene which may be substituted with halogen, acyl, and alkyl, in a one step reaction in the presence of a ferric salt catalyst. |
| 4633022 |
Process for preparation of trisubstituted phenols |
December 30, 1986 |
| 2,6-dialkyl substituted phenols such as 2,6-ditertiary butylphenol are reacted with formaldehyde in methyl alcohol in the presence of an inert gas and a tertiary amine catalyst to produce a bis(3,5-di-t-butyl-4-hydroxybenzyl)ether; and the bis ether subjected to hydrogenolysis in the |
| 4619761 |
Method for screening or fractionation |
October 28, 1986 |
| An improved method for screening and fractionation. By using a housing interiorly divided by a screen plate into a primary and a secondary chamber with the secondary chamber further divided by a fluid impermeable wall, a process fluid stream containing particulate material has a second |
| 4608408 |
Phenol-HCHO-resorcinol resins for use in forming fast curing wood laminating adhesives |
August 26, 1986 |
| A phenol-resorcinol-formaldehyde resin and a method for making the same. In this method phenol and formaldehyde at an initial pH of 8.5 to 9.2 are reacted in the presence of a sodium sulfite catalyst. The reaction mixture is heated and refluxed until it has a viscosity of u-v on the Gard |
| 4604491 |
Synthetic oils |
August 5, 1986 |
| Synthetic base oils for functional fluids and greases are provided comprising a mixture of monoalkylated naphthalenes and polyalkylated naphthalenes, said naphthalenes represented by the formula: ##STR1## wherein the R' groups are independently selected from H and methyl, the mon |
| 4600784 |
High pressure synthesis of substituted tetrathiafulvalenes |
July 15, 1986 |
| A process is disclosed for one-step preparation of substituted tetrathiafulvalenes by reaction of carbon disulfide with acetylenic compounds under pressures of at least about 1,000 atmospheres. Substituted tetrathiafulvalenes made by this process are particularly useful as precursors |
| 4599464 |
Novel compositions |
July 8, 1986 |
| Novel compositions useful as antioxidants are formed by the reaction of resorcinol with an alkenylbenzene. |
| 4596064 |
Method for manufacturing a screw flight |
June 24, 1986 |
| A method and apparatus for manufacturing the screw flight section of a screw conveyor is disclosed. The apparatus includes two horizontal arms which extend from a vertical support and at the terminal end of these arms there are dies for engaging the inner and outer peripheral edges of a |
| 4592783 |
Rust preventives |
June 3, 1986 |
| Rust preventives are provided comprising divalent metal salts of the formula: ##STR1## wherein the R groups are independently selected from methyl, hydrogen, and decyl of the formula: ##STR2## wherein n=0 to 3; and wherein from two to three R groups are decyl, zero to two |
| 4567032 |
Zirconium-manganese-iron alloys |
January 28, 1986 |
| Hydrogen storage materials are provided of a ternary alloy of the formula:wherein x has a value from 1.2 to 1.3, and their hydrides. |
| 4565305 |
Rotary vane valve |
January 21, 1986 |
| A rotary vane valve having a cylindrical housing with a pair of opposed end bells and an interior axial shaft. Opposed inlet and outlet openings on the side of the cylindrical housing allow transverse fluid flow through the housing and radial vanes project from the axial shaft to facilit |
| 4556551 |
Hydrogen storage materials of zirconium-chromium-iron and titanium alloys characterized by ZrCr. |
December 3, 1985 |
| An alloy consisting of zirconium, chromium, iron and optionally titanium is characterized in having C14 hexagonal crystal structure and ZrCr.sub.2 stoichiometry. Members of a preferred class of compounds, represented by the empirical formula Zr.sub.1-x Ti.sub.x Cr.sub.2-y Fe.sub.y wherei |
| 4556079 |
Rotary vane valve including means for ensuring uniform distribution of purge gas |
December 3, 1985 |
| A rotary vane valve having a cylindrical housing with a pair of opposed end bells and an interior axial shaft. A pair of spaced shroud structures are fixed to the shaft at the ends of the vanes to generally separate the interior of the cylindrical housing from the end bells. These shroud |
| 4555254 |
Material collector and discharger apparatus |
November 26, 1985 |
| In a pressurized materials processing system, separation of solid particulates from a gaseous process fluid is beneficially accomplished by use of a swept orifice discharger comprised of a cylindrical housing that is closed at one end and open at the other end. The housing contains an |
| 4545538 |
Hog granulator |
October 8, 1985 |
| A hog granulator for plastic material in which a plurality of longitudinal knives are arranged on a rotor inside a cutting chamber to engage in a cooperative cutting action with bed knives on the cutting chamber walls. A plurality of spaced, longitudinal pockets in the peripheral surface |
| 4539338 |
Phenol formaldehyde resoles for making phenolic foam |
September 3, 1985 |
| The present invention is directed to aqueous phenol formaldehyde resoles that have particular application in manufacturing phenolic foam insulation. The resoles are essentially phenol formaldehyde condensation polymers having molar ratios of formaldehyde to phenol of from about 1.7:1 |
| 4527488 |
Coke oven charging car |
July 9, 1985 |
| A car for charging a coke oven battery with coal. This car carries a plurality of integral coal hoppers. A particular space frame construction is disclosed to support these hoppers, and because of this construction a significant savings in the weight of the car is realized. This space fr |
| 4512965 |
Hydrogen storage materials of hyperstoichiometric alloys |
April 23, 1985 |
| Quaternary hyperstoichiometric alloys of the formula: ZrCrFeT.sub.x and their hydrides are provided, characterized as having MgZn.sub.2 hexagonal crystal structure wherein T is selected from Mn, Fe, Co, Ni and Cu, and X is a number from 0.1 to 1.0. These alloys readily form hydrides at l |
| 4499312 |
Complex formed to separate 3,5-xylenol or 3,4-xylenol from other polymethylated phenolic compoun |
February 12, 1985 |
| A process is disclosed for separating 3,5-xylenol or 3,4-xylenol from other closely boiling polymethylated phenolics by treating a mixture of the phenolics with a metal halide salt. The metal halide salt preferentially forms a complex with the xylenol over other related phenolics in the |
| 4496774 |
Complex formed to separate nitrated phenolic compounds from other phenolic compounds |
January 29, 1985 |
| A process is disclosed for separating nitrated phenolic compounds from other nitrated and unnitrated phenolics by treating a mixture of the phenolics with a metal halide salt. The metal halide salt preferentially forms a complex with one of the phenolics over other related phenolics in |
| 4493556 |
Method and apparatus for mixing particulate material |
January 15, 1985 |
| A method and apparatus for mixing granular, particulate or pulverant material is disclosed. An unhomogenous mixture of two or more such materials is introduced into and moved through a preferably inclined trough structure having rigid side walls and a flexible floor member. At one or |
| 4493286 |
Method and apparatus for applying a multi-component adhesive |
January 15, 1985 |
| An apparatus and method for applying a multi-component liquid adhesive. A liquid resin reservoir and a liquid hardener reservoir are connected by separate conduit means to resin and hardener mix chamber which is positioned adjacent to a dispenser so that the adhesive can be spread at |
| 4482643 |
Preparation of crystalline TiO.sub.2 as anatase and/or rutile in porous carriers |
November 13, 1984 |
| The invention discloses a method of impregnating a porous catalyst carrier with a partially hydrolyzed aqueous methanol solution of titanium tetrachloride, and completing the hydrolysis to titanium dioxide under controlled conditions of temperature and by-product removal to obtain the |
| 4480140 |
Process for alkylating phenolic compounds to produce ortho or para-monoalkylated or 2,4- or 2,6- |
October 30, 1984 |
| Phenols alkylated in the ortho and/or para positions are produced in good yields and in the absence of isomers from phenolic compounds having at least two alkylateable ortho-ortho or ortho-para positions open. The phenolic compound is first partially chlorinated or brominated and the |
| 4479019 |
Complex formed to separate nitrated phenolic compounds from other phenolic compounds |
October 23, 1984 |
| A process is disclosed for separating nitrated phenolic compounds from other nitrated and unnitrated phenolics by treating a mixture of the phenolics with a metal halide salt. The metal halide salt preferentially forms a complex with one of the phenolics over other related phenolics in |
| 4475001 |
Process for alkylating phenolic compounds to produce ortho- or para-monoalkylated phenols or 2,4 |
October 2, 1984 |
| Ortho- or para-monoalkylated phenols or 2,4- or 2,6-dialkylphenols can be produced from phenolic compounds in good yields and in the absence of isomers. The starting phenol which has at least two available ortho or para positions unsubstituted is converted to a t-alkylated phenol having |
| 4472160 |
Hub retention device |
September 18, 1984 |
| An improved hub retention device for retaining the coupling hub in proper position on the shaft of a spindle coupling when the roll ends are removed from the coupling sleeve. The hub retention device is comprised of a split-ring member fitted in a circumferential groove formed on the |
| 4469901 |
Complex formed for separating isopropylated m-cresols |
September 4, 1984 |
| A process is disclosed for separating 5-isopropyl-m-cresol from other isopropylated m-cresols by treating a mixture of the isopropylated m-cresols with a metal halide salt. The metal halide salt preferentially forms a complex with 5-isopropyl-m-cresol over other related closely-boili |
| 4469900 |
Complex formed for separating chlorinated phenols |
September 4, 1984 |
| A process is disclosed for separating closely-boiling chlorinated phenolic compounds from other chlorinated and unchlorinated phenolics by treating a mixture of the phenolics with a metal halide salt. The metal halide salt preferentially forms a complex with one of the phenolics over oth |
| 4466998 |
Wood impregnation |
August 21, 1984 |
| Water-borne preservative salts are used to impregnate wood by the empty-cell pressure impregnation method without the precipitation of water-borne salts such as chromium, copper and arsenic when wood sugars enter the treating solution during the kickback or pressure release phase of |
| 4465845 |
High pressure synthesis of sulfur-selenium fulvalenes |
August 14, 1984 |
| A process is disclosed for one-step preparation of sulfur-selenium fulvalenes by reaction of an acetylenic compound with carbon selenide sulfide or with a mixture of carbon diselenide and carbon disulfide under pressures of at least about 1,000 atmospheres. Fulvalene compounds made by |
| 4460784 |
Fluid-bed catalysts process for making maleic anhydride |
July 17, 1984 |
| Catalytic material is provided by a composition comprising the elements vanadium, non-water-contained hydrogen, phosphorus and non-water-contained oxygen. Freshly prepared catalytic material proxides relatively high yields upon its initial use in the catalytic oxidation of hydrocarbon |
| 4457735 |
Gear type coupling with overload protection |
July 3, 1984 |
| An improved gear type coupling wherein the sleeve thereof is a torsional shear element to provide torsional overload protection to the coupling and its connected equipment. The shear section of the shear element is an integral part thereof and all sections of the shear element conduct an |
| 4456763 |
Preparation of naphthalene-oxidation catalyst by impregnation of silica with aqueous solution of |
June 26, 1984 |
| Catalytic material is prepared by impregnating porous silica with an aqueous solution containing vanadyl oxalate (VOC.sub.2 O.sub.4), potassium sulfate (K.sub.2 SO.sub.4) and potassium bisulfate (KHSO.sub.4). A free-flowing dry-appearing powder is provided comprising particles having |
| 4452670 |
Method and apparatus for recovering preheater coal fines |
June 5, 1984 |
| Coal fines developed from the processing of coal through a preheating system are accumulated in a secondary cyclone system. The coal fines, at an elevated temperature, are mixed with a hydrocarbon organic binder and compressed into larger particles of sufficient structural integrity and |
| 4447658 |
Process for separating 3,5-xylenol or 3,4-xylenol from other polymethylated phenolic compounds |
May 8, 1984 |
| A process is disclosed for separating 3,5-xylenol or 3,4-xylenol from other closely boiling polymethylated phenolics by treating a mixture of the phenolics with a metal halide salt. The metal halide salt preferentially forms a complex with the xylenol over other related phenolics in the |
