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| Number | Title | Issue Date |
| 4245579 | Pressurized fluid circuits Pressurized fluid circuits are provided which are suitable for use in a pressure drop detector for a pressurized fluid fire alarm system. The pressurized fluid circuits are provided as channels in the surface of a block of material and include one channel... | 01/20/1981 |
| 4220475 | Raw mix for producing Portland cement clinker According to the invention, the raw mix for producing portland cement clinker comprises a lime component, a clay component, an iron-containing component and a modifying agent. The latter is a cake byproduct readily available at titanium and magnesium work... | 09/02/1980 |
| 4219393 | Process for producing sulfenimides Sulfenimides are prepared by electrolytic oxidation of organic disulfides or mercaptans and imides. The electrolytic oxidation is accelerated by a halide compound.... | 08/26/1980 |
| 4219363 | Process for the preparation of Portland cement clinker A process for the preparation of Portland cement clinker resides in that limey, clayey and iron-containing components are ground together. The mix is then homogeneized pelletized, decarbonized at 800° to 1000° C. and roasted at 1200° to 1350° C. Dust ... | 08/26/1980 |
| 4217548 | Flaw detector for pipe employing magnets located outside the pipe and detector mounted inside and movable along the pipe with the magnets A detector for magnetically detecting flaws on the inner surface of a pipe of magnetizable material comprises a magnetizing assembly having exciting magnets and movable longitudinally along the interior of the pipe and a detecting assembly movable longitu... | 08/12/1980 |
| 4217311 | Method of preparing vinyl chloride Vinyl chloride is prepared by gas-phase chlorination of a gaseous mixture containing 5 to 50 vol. % of ethane and 50 to 95 vol. % of ethylene. The amount of chlorine supplied into the reaction zone is determined by the formula: number of chlorine moles=3m... | 08/12/1980 |
| 4212949 | Apparatus for cultivating microorganisms An apparatus for cultivating microorganisms on a granular medium comprises a vertical cylindrical vessel with a top port for charging the seeded granular medium and a bottom port for discharging the culture. The vessel is separated, heightwise, into secti... | 07/15/1980 |
| 4212830 | Process for preparing insect pheromones The specification discloses a novel process for the preparation of 11-tetradecenal and novel intermediates therefor. There is also disclosed processes for the intermediates. The novel intermediates include 1,1-dialkoxy-9-halo-nonane and 1,1-dialkoxy-11-te... | 07/15/1980 |
| 4212758 | Cleansing agents containing oleic acid, isopropanol and ethylacetate The cleansing agent comprises oleic acid, isopropyl alcohol, triethanolamine, ethanol extract of peat wax resin obtained by ethanol extraction of peat wax resin at a temperature of the alcohol boiling point, ethyl acetate, 1,2-pyropylene glycol, polyethyl... | 07/15/1980 |
| 4211186 | Fluidized bed combusters The invention provides a fluidized bed combustion apparatus comprising in a common structure a plurality of modules, each module comprising: a diffuser bed support arranged to support and fluidize a bed of granular material by means of air diffusion into ... | 07/08/1980 |
| 4212004 | Pressure drop detectors Pressure drop detectors are provided which are suitable for use in pressurized fluid fire alarm systems. The pressure drop detectors have pressurized fluid circuits provided as channels in the surface of a block of material, including one channel connecte... | 07/08/1980 |
| 4210856 | Battery charging systems for road vehicles A road vehicle battery charging system for a dual voltage electrical supply includes a conventional alternator/rectifier assembly for charging the main battery and a d.c. to d.c. converter connected to charge an auxiliary battery in series with the main b... | 07/01/1980 |
| 4209698 | Transmission-type charged particle beam apparatus A transmission-type charged particle beam apparatus comprising a vacuum elope enclosing, first means, having at least ten individual charged particle sources to separately produce at least ten individual charged particle beams, second means to supporting... | 06/24/1980 |
| 4208437 | Method for making confectionery lollipops In order to make higher production speeds possible when making confectionery lollipops a method and a device are presented wherein the separation of the pieces of confectionery takes place by means of a cutting stamp making an up and down movement in the ... | 06/17/1980 |
| 4208704 | Lamp reflector for a motor vehicle A vehicle headlamp reflector comprises a dished body having a generally rectangular front opening and a bulb-receiving rear opening. The body is internally reflective and includes a first pair of laterally disposed reflective portions, a second pair of la... | 06/17/1980 |
| 4207512 | Battery charging systems for road vehicles A road vehicle battery charging system for a dual voltage electrical supply includes a conventional alternator/rectifier assembly for charging a main battery and a d.c. to d.c. converter for charging an auxiliary battery in series with the main battery. T... | 06/10/1980 |
| 4206358 | Technetium-99 generators A generator for liquid containing 99m Tc has an adsorbant bed of alumina, zirconia or the like and has associated therewith a quantity of an electron scavenging compound of a rare earth, silver or gold so as to maintain elution efficiency durin... | 06/03/1980 |
| 4206010 | Drum to build and form a belt tire A drum to build and form a belted tire, having a central support element, the central portion of which consists of radially slidable segments, and two bead retainers arranged at both sides of said support element, the spacing of said bead retainers being ... | 06/03/1980 |
| 4206060 | Bolt and nut unit coated with lubricant A bolt and nut unit coated with lubricant comprising graphite and/or molybdenum disulfide, an ethylene-vinyl acetate copolymer and a fatty acid or a metallic soap thereof. This lubricant has low temperature sensitivity, and the bolt and nut unit coated th... | 06/03/1980 |
| 4205281 | Ferrite composite circulator A ferrite composite circulator according to the present invention performs various circulator actions with ferrite composites in which resonant TM modes and relevant circulating modes are utilized in multiple. Circulator performances are categorized into ... | 05/27/1980 |
| 4205378 | Internal combustion engine fuel control system An internal combustion engine fuel ignition system has feedback from an exhaust gas composition transducer which operates effectively only at normal exhaust temperatures, the transducer having a very high impedance at low temperatures. The feedback circui... | 05/27/1980 |
| 4204190 | Brake pad wear detection system A brake pad wear detection system comprises a brake having a brake pad and a conductive braking face, the brake pad and the conductive braking face engaging during braking. A sensor loop is embedded in the brake pad and positioned to be broken when the we... | 05/20/1980 |
| 4203470 | Safety valve for gas pipes A safety valve for gas pipes preventing backflow in the closed position is described. Simultaneously any possible leakage from the line is vented. The line to be closed terminates with two adjacent ends in a fixed plate having corresponding openings. Oppo... | 05/20/1980 |
| 4203376 | Treatment of waste A method for the production of heat comprises composting solid organic waste, preferably in admixture with sewage sludge, and burning the composted waste, for example in a kiln for calcining an inorganic calcinable material. The composted waste preferably... | 05/20/1980 |
| 4202851 | Method of preparing a sheet-formed product A new method of preparing a fire-resistant sheet formed product is disclosed involving the following steps: (1) grinding together a particulate inorganic material selected from the group consisting of crystallized blistered glass, crushed cement clinkers ... | 05/13/1980 |
| 4201214 | Applicators An applicator for attachment of ear tags to animals. The device incorporates a slotted base to which is affixed, at 90°, an elongate guide. A first handle extends from that end of the base opposite the slotted portion thereof and a second handle is pivot... | 05/06/1980 |
| 4201257 | Timber processing machine A timber processing machine comprising a hollow rotor provided with barking and lopping knives. A tree trunk to be processed is fed longitudinally through the rotor. A non-rotable guide ring is coaxially fastened to the rotor at the inlet side of the kniv... | 05/06/1980 |
| 4201458 | Single lens mirror reflex studio camera in which quick return mirror closes flash contact This invention relates to a single-lens mirror reflex camera for studio purposes, with which the exposure-determining film exposure, within a prescribed opening time of the shutter, is effected during the duration of a flashlight initiated by the camera. ... | 05/06/1980 |
| 4201784 | Substituted 2-[2'-(5"-nitrofuryl-2")vinyl-and 4'-(5"-nitrofuryl-2"-1,3-butadieryl]quinoline-4-carboxylic acid amides and salts thereof New compounds of the nitrofuran series are provided, having the following general base formula: ##STR1## where R=CH2 CH2 CH2 OH; --CH(CH3)(CH2)3 N(C2 H5)2 | 05/06/1980 |
| 4201549 | Soil testing apparatus and method Soil testing apparatus comprising two dialytic tubes, one of the tubes containing a dialyzable solution containing H-ions and the other tube containing a dialyzable solution containing carbonate (CO3)ions. The invention also concerns a method o... | 05/06/1980 |
| 4200504 | Extraction and separation of metals from solids using liquid cation exchangers Process for extraction and separation of metals utilizing the advantages of liquid-liquid extraction with cation exchangers without requiring the equivalent addition of alkali. The process is based on a combination of leaching the metal-containing raw mat... | 04/29/1980 |
| 4200824 | Circuit for providing saw-tooth current in a coil A circuit for providing saw-tooth current, with a trace and a retrace interval, in a coil, in particular a deflection coil of a television kinescope, in which the coil is connected to a retrace condenser and a trace condenser so as to form a deflection ci... | 04/29/1980 |
| 4200683 | Lead-acid batteries A lead-acid battery capable of activation by the addition of electrolyte thereto includes at least one pack of formed positive and negative battery plates with insulating separators being interposed between adjacent plates. Part of the sulphuric acid used... | 04/29/1980 |
| 4199459 | Continuous filtering-settling centrifuge The subject of the invention is a continuous filtering-settling centrifuge designed for separating continuously mixtures containing solid and liquid bodies. In the centrifuge several filtering or settling baskets are applied, situated beyond the main axis... | 04/22/1980 |
| 4199682 | Fire and explosion detection apparatus Fire and explosion detection apparatus comprises an ultra violet detector providing a first output signal in response to receipt of ultra violet radiation and an infra red detector providing a second output signal in response to receipt of infra red radia... | 04/22/1980 |
| 4199684 | Method for the determination of the electron density in a part volume The present invention relates to a method for the determination of the electron density in a part volume in a patient by means of an X-ray tube, said tube comprising an anode symmetrical with respect to rotation as an electron beam rotates relative to the... | 04/22/1980 |
| 4198182 | Method of manufacturing a mould for producing a lamp lens element A mould for producing a lamp lens element comprises a mould plate having a plurality of recesses in one face thereof. Each recess is adapted to produce a projection on one face of the lens element produced from the mould, and is shaped so as to define in ... | 04/15/1980 |
| 4198610 | Audio amplifier In active element of an audio amplifier, there exists a neutral point in which the amplification is minimum. When the middle point of AC mode in a circuit is coincident with the neutral point, noise elements accompanying with input signals are not amplifi... | 04/15/1980 |
| 4196752 | Group valve for two separate liquid supply lines A group valve for selectively connecting two liquid supply lines separately to a container. The valve comprises a housing with three chambers, one of which is separately connected to the others communicating with a respective liquid line. In each chamber ... | 04/08/1980 |
| 4196733 | Diaper comprising a plurality of superimposed plies A diaper comprising a plurality of superimposed plies of material. The diaper is foldable around a center line defining two sections of the diaper. In use the diaper is in its folded state and for washing and drying the diaper is in an unfolded state.... | 04/08/1980 |
