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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 5098069 | Equipment and regulating means for recovering metal-carbide scrap by alloying The invention concerns a method, equipment and a regulating means for use in recovering metal-carbide scrap by alloying. This is carried out by treating the scrap with a low melting point metal which brings the metal-carbide matrix into solution at temper... | 03/24/1992 |
| 4933064 | Sputtering cathode based on the magnetron principle A sputtering cathode for the coating of substrates. The cathode has a base, a target of nonmagnetic material, and a magnet system having exposed pole faces for the production of a tunnel of magnetic lines of force overarching the sputtering surface. The t... | 06/12/1990 |
| 4919778 | Process for the production of curve glazing with a high transmittance in the visible spectral range and a high reflectance for thermal radiation A system of layers is built up on substrates of mineral glass in the following order: first layer: an oxide from the group, stannic oxide, silicon dioxide, aluminum oxide, tantalum oxide, zirconium oxide, or their mixed oxides; second layer: a metal from ... | 04/24/1990 |
| 4871434 | Process for equipment to coat tools for machining and forming techniques with mechanically resistant layers Process and apparatus for coating a tool with a layer of a compound which contains at least one of carbon and nitrogen and at least one of titanium, zirconium, chromium, tungsten, tantalum, vanadium, niobium, hafnium and molybdenum. The apparatus includes... | 10/03/1989 |
| 4839904 | Apparatus for the melting of metals An apparatus for melting metals in a vacuum chamber has a weir box (1), electron beam generators disposed above the weir box, and a crucible for the withdrawal of the melt flowing out of the weir box. A weir or sill is disposed in the trough athwart the l... | 06/13/1989 |
| 4832490 | Photometer A photometer in which a measuring phase, a reference phase and a dark phase are produced by means of a chopper. These phases are staggered in time, so that a single detector can be provided for all phases. In the photometer the object to be measured is si... | 05/23/1989 |
| 4832496 | Method and apparatus for measuring the monocrystal diameter and the melt level during crucible drawing in the Czochralski process A method and apparatus for measuring the diameter of a monocrystal during crucible drawing determines the brightness profile at the melt/monocrystal change-over point. The spacial position of maxima in the brightness profile in relation to a reference poi... | 05/23/1989 |
| 4830876 | Process for producing contact strips on substrates, especially on glazing Process for the production of contact strips on substrates, especially on plates of mineral glass. These substrates are provided with an electrically conductive surface coating which is coated on the side facing away from the substrate with at least one s... | 05/16/1989 |
| 4828872 | Method and apparatus for the reactive vapor depositing of metal compounds A method and apparatus is disclosed for the reactive deposition of vapors of metal compounds onto substrates by the evaporation of at least one metal by means of an electron beam in an atmosphere consisting of the reaction gas, at pressures of no more tha... | 05/09/1989 |
| 4828391 | Test-glass changer Test-glass changer for measuring layer properties optically in vacuum coating installations. A holding device (10) that accommodates several test glasses (12) is rotatably supported on a substrate holder (4), which serves to transport substrates (5) throu... | 05/09/1989 |
| 4823263 | Apparatus for controlling the operation of tipping a melting crucible In automatic melting crucible tipping it is important that, starting from a certain angular position, the melting crucible (1) is tipped according to a predetermined model until emptying is complete. This model can be obtained, for example, by the so-call... | 04/18/1989 |
| 4820106 | Apparatus for passing workpieces into and out of a coating chamber through locks In an apparatus for passing a discoidal workpiece into and out of a coating chamber through a lock and for shifting the workpiece into and out of the range of a coating source, a swivelling arm is journaled for movement about a vertical axis on the top of... | 04/11/1989 |
| 4818282 | Method for recovering metal-carbide scrap by alloying The invention concerns a method, equipment and a regulating means for use in recovering metal-carbide scrap by alloying. This is carried out by treating the scrap with a low melting point metal which brings the metal-carbride matrix into solution at tempe... | 04/04/1989 |
| 4818358 | Magnetron cathode sputter coating apparatus In a cathode sputtering apparatus, in order to achieve a very uniform utilization of the target and a high-quality coating on the substrate, the cathode is provided on its side of the target facing away from the substrate with a flat plate on which a plur... | 04/04/1989 |
| 4815415 | Apparatus for producing coils from films of insulating material, conductively coated under vacuum An apparatus for producing and coiling films of insulating material coated under a vacuum with electrically conductive material, comprising an electron beam vaporizer, a feed drum, a roller disposed above the electron beam vaporizer and looped by the film... | 03/28/1989 |
| 4816412 | Method for the determination of the content of solid carbon compounds in soil samples Method for the determination of the content of solid carbon compounds in soil samples, particularly in humus soils, by converting the solid carbon compounds with a reactant into carbon dioxide and conveying the carbon dioxide gas into an analyzer. To reac... | 03/28/1989 |
| 4813846 | Inserting device for vacuum apparatus An inserter for vacuum installations has a two-part arm provided with a driving and, a single joint and an end for holding an object. The arm can turn in at least one horizontal plane about a vertical main axis disposed in the area of the driving end, and... | 03/21/1989 |
| 4808373 | Multiple-substance alloy for targets of cathode sputtering apparatus A multiple-substance alloy used as a target in a cathode sputtering apparatus, and having a gold content most preferably in the range of 94-98 percent by weight, is disclosed. The alloy further contains non-gold alloys of aluminum, copper and preferably a... | 02/28/1989 |
| 4806765 | Method and apparatus for checking the signal path of a measuring system The disclosure relates to a method and apparatus for checking the signal path in a measuring system of the type having a collector for charged particles and an amplifier connected to its output to form a voltage or current signal. To permit sensitivity te... | 02/21/1989 |
| 4803398 | Electron gun with one directly heatable and one indirectly heatable cathode An electron gun with one directly heatable initial cathode (2), one indirectly heatable second blocking cathode (3) and one focusing electrode (17). The focusing electrode (17) presents an initial centering region (18) and, by means of supporting braces, ... | 02/07/1989 |
| 4798663 | Sputtering installation for the reactive coating of a substrate with hard materials Sputtering apparatus for the reactive coating of substrates with hard substances, which has a housing (1) with a feed line (3, 4) for a reaction gas a nobble gas, a magnetron (6) as well as at least one mounting (9) for the substrates, the mounting (9) be... | 01/17/1989 |
| 4798521 | System and method for regulating pressure in a container A system for regulating pressure in a container. The system includes a membrane pressure regulator with a reference pressure chamber containing a reference pressure, and a vacuum pump connected to the container via the membrane pressure regulator. The sys... | 01/17/1989 |
| 4797062 | Device for moving gas at subatmospheric pressure A device for moving a gas at a subatmospheric pressure with a screwthread-like device on at least one of the facing surfaces of a rotor spacedly surrounded axially by a relatively-rotatable stator insulates the stator from a housing for the device to prev... | 01/10/1989 |
| 4794784 | Leak detector calibrating device A leak detecting apparatus includes a detector arranged for sensing a gas emanating through a specimen to be tested for leaks; a leak simulator having an outlet emitting a gas of a known flow rate; and a valve for selectively connecting the outlet to the ... | 01/03/1989 |
| 4794330 | Method and circuit for measuring and displaying physical values A method and circuit for measuring and displaying a parameter, in which the parameter is sensed by means of a sensor which supplies an output voltage representative of the value of the parameter, the output voltage is compared with a comparison voltage as... | 12/27/1988 |
| 4793911 | Apparatus for the production of coatings with a uniform thickness profile by cathode sputtering In an apparatus for the production of coatings with a uniform thickness profile on substrates by cathode sputtering, a substrate carriage held and guided between wheels is provided, which can be moved through the coating chamber, and which has on its side... | 12/27/1988 |
| 4791017 | Hard, gold-colored under layer for a gold or gold-containing surface layer and an article therewith An underlayer of at least one a carbonitride of titanium, zirconium, hafnium or vanadium or hafnium nitride may be under a surface layer at least containing gold or on a still-undermore decorative article, and preferably both. It has a brilliance approxim... | 12/13/1988 |
| 4787023 | Power supply apparatus A power supply apparatus, in which the three phases of an alternating-current main are connected each through rectifier elements connected in antiparallel to the primary winding of a three-phase transformer. The secondary windings of this transformer are ... | 11/22/1988 |
| 4780042 | Melting crucible tilting mechanism A tilting mechanism for precisely controlling the pouring of metal from a melting crucible is disclosed. The mechanism utilizes a pressure roller journalled in an adjustable bearing mount to clearance-free urge a rack against a pinion to tilt the crucible... | 10/25/1988 |
| 4779449 | Leak detector and leak detection method Leak detector operating according to the countercurrent principle is used in a leak detection method and includes a first high vacuum pump having an inlet which is connected to an inlet of the leak detector, a second high vacuum pump having an inlet which... | 10/25/1988 |
| 4777062 | Method and apparatus for reactive vapor deposition of metal compounds A method and apparatus are disclosed for the reactive vapor deposition of metal compounds onto a substrate. At least one metal is evaporated from an elongated evaporation crucible in an atmosphere consisting of a reaction gas at a pressure of no more than... | 10/11/1988 |
| 4775981 | Melting furnace with weight-related control of the consumable electrode In a melting furnace with weight-related control of the consumable electrode, the electrode mounting is disposed in a separate pressure chamber which has an inverted bottle-shaped configuration. The downwardly extending neck-like portion is passed sealing... | 10/04/1988 |
| 4773079 | Process for melting down and degassing lumpy material Process for melting down and degassing lumpy material by means of inductive heating and under subatmospheric pressure in a melting crucible. For the purpose of shortening the duration of the process, scavenging gas and/or reaction gas is introduced into t... | 09/20/1988 |
| 4772848 | Gas measuring chamber for paramagnetic measuring instruments A paramagnetic measuring instrument comprises a magnetic circuit, formed from ferromagnetic material and having pole ends defining a discontinuity, and a gas measuring chamber disposed in the discontinuity between the pole ends. The measuring chamber incl... | 09/20/1988 |
| 4769533 | Circuit arrangement for a position-sensitive radiation detector The invention relates to a circuit arrangement for a position sensitive radiation detector which produces a current or voltage signal (UY) that depends exclusively on the coordinates x and y of the point of incidence of electromagnetic radiatio... | 09/06/1988 |
| 4767641 | Plasma treatment apparatus Device for the plasma treatment of substrates (7) in a high frequency-excited plasma discharge between two electrodes (3, 8), supplied by a high-frequency source (6). The first electrode is constructed as a hollow anode (3) and the second electrode (8), w... | 08/30/1988 |
| 4767123 | Dual ring piston-ring system with spring ring bias means A piston-ring system has two, equal-radius, coaxial, axially-contiguous sealing rings, each ring having a split circumferential offset from the split in the other ring, each split being substantially Z-shaped in a plane normal to the axis of the rings to ... | 08/30/1988 |
| 4767452 | Process for separating metals by distillation and condensation Process and equipment for separating molten metals with a distillation part (1) and a condenser part. The metal vessel (12) of the distillation part (1) is tiltable about at least one horizontal articulated axle (15) and is connected to a drive mechanism ... | 08/30/1988 |
| 4765273 | Transporting device with roller systems for vacuum-coating installations Transporting device for vacuum coating installations with several stations and with roller systems (3, 4) for the guidance and advance of essentially two-dimensional substrate holders (1) in a vertical position along a given transporting path through the ... | 08/23/1988 |
| 4762730 | Method for producing transparent protective coatings from silicon compounds A method for producing a transparent protective coating on a plastic optical substrate surface is disclosed. In particular, a substrate is positioned between two electrodes on the cathode in a reaction chamber. Once positioned, a noble gas is introduced i... | 08/09/1988 |
