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| Number | Title | Issue Date |
| 5030196 | Magnetic treatment device A magnetic medical treatment device and method wherein a coil received in a housing is energized with a periodic current of a predetermined frequency furnished from a power supply accommodated in the housing or disposed separately outside thereof to produ... | 07/09/1991 |
| 4846413 | Shredding machine A new machine for shredding a scrap material such as waste paper, cutter disks for particular use in shredding machine and a method of making cutter disks are disclosed. The life of the cutter disks is markedly increased and the performance of the shreddi... | 07/11/1989 |
| 4822633 | Auto-selective metal deposition on dielectric surfaces A method of plating a pattern of metal (e.g. copper or nickel) on a dielectric surface, i.e. surface of a dielectric material such as a synthetic resin or ceramic. The method comprises the preliminary step of masklessly treating the dielectric surface to ... | 04/18/1989 |
| 4704511 | Traveling-wire electroerosion machine with swiveling nozzle assembly A traveling-wire electroerosion machine with nozzle assemblies on each side of the workpiece, has at least one of these nozzle assemblies formed with a rotatable outlet member with a caster-like formation engaging the workpiece surface to orient an inclin... | 11/03/1987 |
| 4689467 | Laser machining apparatus This invention relates to improvement in a laser machining apparatus using both a working laser generator (101) and an auxiliary energy supplying apparatus (110) such as a plasma or the like. A feature of the invention is that an auxiliary energy generate... | 08/25/1987 |
| 4659894 | Capacitor-type HF power supply for electrical machining A capacitor-type power supply for electrical machining has a capacitor connected across a machining gap while a high-frequency power generator is disposed at a location remote from the machining gap and provides a high-frequency electric power. A feeder c... | 04/21/1987 |
| 4649255 | EDM using a partition member to separate hydrocarbon and water liquids in the work tank An improved EDM system includes a partition member which separates a space surrounding a workpiece in a worktank into a first chamber which directly surrounds a machining area of the workpiece and a second chamber outside of the first chamber and surround... | 03/10/1987 |
| 4622449 | Using the weight of the electrode or workpiece to control EDM working conditions An electrical discharge machine is provided with at least one weight measuring apparatus for detecting the weight of one or both of an electrode and a workpiece, and a control unit for selecting or controlling the working conditions in response to the out... | 11/11/1986 |
| 4618761 | Electrode cutting apparatus for wire cut electric discharge machine A wire electrode cutting apparatus for use in a wire-cut electric discharge machine mounted between a supply section for the wire electrode and a pulling section therefor, and comprising a device for applying a constant tensile force to the wire electrode... | 10/21/1986 |
| 4608143 | TW-electroerosion apparatus with wheeled drive carriages A traveling-electrode electroerosion apparatus using a pair of wheeled carriages which accommodate axial electrode drives and machining feed drives. The wheeled carriages also carry a pair of guide members for establishing a straight-line path for the ele... | 08/26/1986 |
| 4596640 | Shaping method and apparatus using an axially moving continuous elongated tool A workpiece cutting method and apparatus in which an elongated wire or band tool spans a pair of guides and is continuously advanced relative to the workpiece by a first drive system but is reciprocated in the region of the workpiece by a second drive sys... | 06/24/1986 |
| 4590352 | Dry-cut EDM with debris sweeping means An EDM system in which a tool electrode is spacedly juxtaposed with a workpiece to define a machining gap which is substantially open directly to a region of atmospheric air. A non-inflammable (e.g. water-based) machining liquid is injected into the machi... | 05/20/1986 |
| 4586576 | Measuring system A measuring system using the magnetic scale and a sensing head measures a deformation of a deformable member and/or one or more physical quantities, e.g. a strain and internal stress of, or an external force to, the member, which are functions of the defo... | 05/06/1986 |
| 4584450 | Method of preparing a machining fluid for electroerosion A new method is disclosed for the electroerosion machining of a workpiece by employing as a machining fluid, raw water which has been deionized until its resistivity increases to at least 105 ohm-cm and then decreasing the resistivity of the ra... | 04/22/1986 |
| 4578556 | EDM method and apparatus utilizing water vapor A method of and an apparatus for the electroerosive machine of a workpiece in which a tool electrode, such as a traveling wire, traverses a nozzle which coaxially directs into the machining gap a mixture of water vapor and liquid water. The liquid water i... | 03/25/1986 |
| 4562019 | Method of preparing plastomeric magnetic objects A method of preparing an elastically deformable magnetic object in which fine metal particles treated with a settable organic substance are mixed with a rubber material in a pulverized form to make a powdery mass. This is shaped under pressure, in a magne... | 12/31/1985 |
| 4551606 | Beamed energy radiation control method and apparatus A method of and apparatus for controlling beamed energy radiation, e.g. of electron beams, onto a workpiece making use of a beam gun for producing a series of successive, time-spaced groups of pulsed energy beams. A power supply for the beam gun is constr... | 11/05/1985 |
| 4543460 | Generic electrode EDM method and apparatus, and assembly for maintaining chip concentration in the gap at an enhanced level An EDM method and apparatus, utilizing a generic electrode, i.e. a tool electrode independent in shape of a desired cavity or contour to be machined in a workpiece, and utilizing a three-dimensional machining feed displacement, makes use of an assembly fo... | 09/24/1985 |
| 4536632 | Wire-cut electroerosion method and apparatus utilizing wire-cleaning means Wire-cut electroerosion method and apparatus whereby breakage of an electrode wire is substantially prevented by limiting air-bubbling in the cutting zone from the electrode wire traveling through a liquid-machining medium. The air-bubbling is limited by ... | 08/20/1985 |
| 4536366 | Sintering method and apparatus Sintering method and apparatus. A pre-sintered or compacted mass of particulate material is densified by loading the mass into a substantially closed three-dimensional space defined by three pairs of punches juxtaposed thereacross in three respective dire... | 08/20/1985 |
| 4534831 | Method of and apparatus for forming a 3D article A method of and apparatus for forming a 3D-shaped article, such as a die or mold, utilizing an electroforming process in which a metal layer is electroformed on an electroforming mold and removed therefrom to form the desired article. The removal is facil... | 08/13/1985 |
| 4530471 | Method of and apparatus for dispensing wire from a wire storage spool A method of and apparatus for dispensing wire from a massive storage spool make use of a rotary support for holding the storage spool and in bearing contact therewith. The rotary support comprises a pair of rollers, one of which is rotationally driven by ... | 07/23/1985 |
| 4527034 | Electrode positioning method and apparatus for NC-EDM An electrode positioning method and apparatus for NC-EDM wherein a tool electrode and a workpiece are relatively displaced under commands of an NC unit while EDM stock removal of the workpiece is advanced by developing effective electrical discharges betw... | 07/02/1985 |
| 4524543 | Vibratory abrasive contour-finishing method and apparatus Vibratory abrasive contour-finishing method and apparatus in which an axial tool longitudinally vibrated at a high-frequency is rapidly rotated about its longitudinal axis to provide a rapidly reciprocatingly revolving active tool surface for pressure eng... | 06/25/1985 |
| 4523480 | Mass flow rotameter A flow meter is provided using a fluid responsive solid member which is introduced into a flow chamber defined in a vertically standing tubular housing and which, with the flowing fluid supplied through an inlet at the lower end of the housing and dischar... | 06/18/1985 |
| 4521661 | Method of and apparatus for holding against mispositioning a thermally deflectable member in an operating machine tool A work element supported by a thermally deflectable member in an operating machine tool is held against mispositioning by causing a fluid to flow through a passage formed in the member of the machine tool performing a machining operation to hold the membe... | 06/04/1985 |
| 4521328 | Method of making carbon material A carbon material having oxygen impregnated therein, the oxygen being present in an amount of 10 to 100 ppm in the carbon material.... | 06/04/1985 |
| 4521660 | EDM Feed motor control method and system A stepping feed EDM motor control method and system in which the rate of driving of a motor for each step of incremental advance of the movable electrode, e.g. a tool electrode or a workpiece electrode, is controlled in accordance with the instantaneous a... | 06/04/1985 |
| 4520252 | Traveling-wire EDM method and apparatus with a cooled machining fluid A traveling-wire EDM method and apparatus in which a machining fluid in liquid phase is sufficiently cooled in its supply conduit to less than a predetermined critical temperature, e.g. 4° C. To this end, the wire electrode prior to introduction into the... | 05/28/1985 |
| 4518317 | Fluid pumping system A fluid pumping system including a variable-volume, fluid-reception chamber having an inlet conduit leading from a fluid supply site and an outlet conduit leading to a fluid delivery site. An elongated plunger body is drivingly coupled with the chamber an... | 05/21/1985 |
| 4516009 | Capacitor-type HF power supply for electrical machining A capacitor-type power supply for electrical machining has a capacitor connected across a machining gap and in the region thereof while a high-frequency power generator is disposed at a location remote from the machining gap and provides a high-frequency ... | 05/07/1985 |
| 4513192 | TW-EDM Method and apparatus with excess fluid stripping gas jet nozzle A TW-EDM method and apparatus wherein a continuous electrode wire is axially transported from a supply side to a takeup side to travel through an electrically conductive workpiece while a relative displacement is effected between the traveling wire and th... | 04/23/1985 |
| 4513191 | Method of and apparatus for resetting a wire electrode in an operating setup on an electroerosion machine An improved method and apparatus for automatically resetting a wire electrode (E) in an operating setup on a traveling-wire electroerosion machine (e.g. a TW-EDM machine) is disclosed. Upon termination of a given machining operation with the machine comme... | 04/23/1985 |
| 4512859 | Abrasive polishing method A novel method of polishing a workpiece surface comprises passing over the surface in elastically compressive abrasive contact therewith a mass of discrete, elastically deformable pieces each individually consisting of a matrix of elastomeric material con... | 04/23/1985 |
| 4511595 | Laser-activated chemical-depositing method and apparatus A method of and apparatus for chemically depositing a metal to a substrate in the presence of a rapidly flowing chemical-depositing solution furnishing the metal. A narrow light beam is directed onto the substrate and intercepted by a localized area there... | 04/16/1985 |
| 4510366 | Fluid delivery rate control TW electrical machining method and apparatus A method of and an apparatus for electrical-machining a conductive workpiece with an axially traveling wire electrode displaced transversely to the workpiece along a predetermined cutting path to advance electroerosion effected across the machining gap su... | 04/09/1985 |
| 4508604 | Traveling-wire EDM method An improved machining method and electrode for use in the traveling-wire EDM process utilizing an aqueous machining fluid medium which is decomposed by erosive electrical discharges into gaseous oxygen and hydrogen. Breakage of the traveling-wire electrod... | 04/02/1985 |
| 4508950 | EDM Method and apparatus using liquid hydrocarbon decomposition yielded gases and a deionized water liquid An improved EDM method and apparatus in which a hydrocarbon liquid such as kerosene is decomposed, outside of an EDM gap, to produce therefrom gases containing gaseous hydrocarbons, which gases are injected into the machining gap immersed in a deionized w... | 04/02/1985 |
| 4507532 | Wire-cut electric discharge machine A wire-cut electric discharge machine having an improved nozzle system for supplying working fluid into a working gap between a workpiece and wire electrode. The improved nozzle system comprises a working fluid nozzle coaxial with the wire electrode and a... | 03/26/1985 |
| 4507533 | Power supply circuit for electrical machining A power-supply circuit for electrical machining of all types in which a tool is juxtaposed with a workpiece, the circuit having an alternating current input connected to the mains and receiving the alternating current at the mains' frequency, a rectifier ... | 03/26/1985 |
