Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 4361471 | Electrolytic swimming pool chlorination An open-cell electrolyte chlorine generator such as a type used for the chlorination of various aqueous streams including swimming pools is constructed without the use of a diaphragm or membrane isolating or partitioning the electrolyte between the anode ... | 11/30/1982 |
| 4358357 | Apparatus for the electrolysis of water The electrolytic apparatus includes at least one set of cells housed in a stack of annular spacer frames, annular bearing surfaces of which indicate joint planes extending to the exterior of the stack of frames, and each equipped with electrode plates and... | 11/09/1982 |
| 4353785 | Method of and apparatus for wire-cut machining workpieces of non-planar surface contours A workpiece of a non-planar, curved or intricate surface contour carried on a horizontal table is wire-machined with a vertical swivel head for traveling-wire tool by sensing an imaginary plane which is tangent to the surface contour at any point thereon ... | 10/12/1982 |
| 4349427 | Aluminum reduction cell electrode The invention is directed to cathode modules comprised of refractory hard metal materials, such as TiB2, for an electrolytic cell for the reduction of alumina wherein the modules may be installed and replaced during operation of the cell and wh... | 09/14/1982 |
| 4348267 | Plating means This invention relates to a plating means, wherein an accurate plating for a smaller work surface is carried out high-speedily. For this purpose, the smaller work surface is enclosed by a mask of the plating means, and a plating solution is jetted for the... | 09/07/1982 |
| 4344834 | Apparatus for cooling and purification of exit gases from an electrolysis installation The invention relates to the cooling and purification of exit gases from an electrolysis installation, such as an installation for electrolysis of water under pressure. Above each degasser (7) is placed a chamber (1) containing a volume (3) of pure water,... | 08/17/1982 |
| 4344832 | Electrode system for a fuel or electrolysis cell arrangement An electrode system comprises two discs or plates forming an anode and a cathode, each of the discs or plates having a structure of parallel ridges and grooves on at least one of the main surfaces, the discs or plates being assembled together with their s... | 08/17/1982 |
| 4341613 | Apparatus for electroforming An apparatus is disclosed for holding a matrix during electroforming. The apparatus is secured to the cathode of an electroforming apparatus and consists of a flat disc member having a diameter at least as large as the diameter of the matrix to be duplica... | 07/27/1982 |
| 4340459 | Electrolytic cell with oxygen-depolarized cathodes A porous, two layer electrode which may be used as an anode or a cathode and a cell using one or more of the electrodes. The electrode is in a pocket shaped configuration with the inner layer having interstitial passageways which are larger in diameter th... | 07/20/1982 |
| 4339319 | Apparatus for plating semiconductor wafers An apparatus for applying a bump-plating on one surface of a semiconductor wafer, which comprises a plurality of cup-shaped plating basins and a plurality of holders, each of the holders being engageable with a relevant one of the basins to set a semicond... | 07/13/1982 |
| 4339323 | Bipolar electrolyzer element Disclosed is a bipolar electrolyzer having a plurality of individual electrolytic cells electrically and mechanically in series with a bipolar element between pairs of adjacent individual cells. The bipolar element has an anodic side with anodes of the fi... | 07/13/1982 |
| 4338181 | Electrode containing extraction treated particles This disclosure is directed to a process for extracting PTFE-wetting agent from PTFE particles containing small amounts of wetting agent in admixture with carbon particles comprising contacting said mixture with an organic liquid medium capable of extract... | 07/06/1982 |
| 4338178 | Apparatus for electrochemical purification of contaminated liquids An apparatus comprises a settling chamber having an outlet pipe to discharge purified liquid and communicating with an electrocoagulation chamber in whose bottom part a system of soluble electrodes is disposed. The electrocoagulation chamber has an inlet ... | 07/06/1982 |
| 4336122 | Electrolysis apparatus An electrolysis apparatus is disclosed and comprises a plurality of cells connected in series both on the current flow path (an electrical course being connected across the end ones of the electrodes) and the electrolyte/gas flow path (electrolyte enterin... | 06/22/1982 |
| 4334975 | Apparatus for electrolytic production of magnesium metal from its chloride The present invention provides an apparatus for electrolytic production of magnesium metal from its chloride, which apparatus essentially comprises at least one externally unwired electrode which is made of graphite alone or graphite-iron composite and is... | 06/15/1982 |
| 4333813 | Cathodes for alumina reduction cells This invention concerns cathodes for alumina reduction cells, particularly drained cathodes, which present a refractory surface for contacting molten aluminum on the cell floor. This invention also concerns materials for constructing such cathodes. The ca... | 06/08/1982 |
| 4333806 | Method of and apparatus for electroerosively machining a contour in a workpiece with a traveling-wire electrode A method of and apparatus for electroerosively machining a desired contour in a workpiece with a wire electrode transported from a supply to a takeup and, in a path therebetween, supported by a pair of wire guide heads to tightly stretch the axially advan... | 06/08/1982 |
| 4332648 | Electrolytic apparatus for the manufacture of alkali metal halate An improved electrolytic apparatus for the production of an alkali metal halate, such as sodium chlorate, from an aqueous solution of alkali metal halide, such as sodium chloride, includes modular, vertical anodes and cathodes in alternating relationship ... | 06/01/1982 |
| 4332664 | Gas producing electrolytic cell for portable devices A gas producing electrolytic cell for portable devices comprising a vessel, an electrolyte, a cap, a gas space, channel labyrinths, a separating wall and contacts. The channel labyrinths eliminate the outflow of the electrolyte from the cell in its overtu... | 06/01/1982 |
| 4332662 | Electrolytic cell having a depolarized cathode An improved electrolytic cell for the electrolysis of alkali metal halide solutions to produce halides and alkali metal hydroxides is provided wherein current reductions are obtained by the passage of an oxidizing gas, such as oxygen, into a porous cathod... | 06/01/1982 |
| 4332661 | Cells having gasket lubricating means In an electrolytic cell lubricous material is provided between at least one gasket and the adjacent surface of the membrane between adjacent electrode frames to permit the gasket to deform during assembly and operation of the cell when compressive force i... | 06/01/1982 |
| 4332659 | Electrolytic apparatus for the manufacture of alkali metal halate An electrolytic apparatus for the production of an alkali metal halate, such as sodium chlorate, from an aqueous solution of alkali metal halide, such as sodium chloride, includes vertical anodes and cathodes in alternating relationship in a housing, and ... | 06/01/1982 |
| 4332660 | Storage bunker device for feeding electrolytic cell The invention relates to a storage bunker for a facility which breaks open the solidified crust on an electrolytic cell. The bunker is subdivided into a large container for alumina and a small container for additives. Below the containers are provided a c... | 06/01/1982 |
| 4331524 | Process and apparatus for electrolytic metal processing A method and apparatus for electrolytic processing of a metallic workpiece in which short circuits in the operating gap which produce an arc are detected and extinguished by an auxiliary d.c. current of limited duration and counter to the direction of flo... | 05/25/1982 |
| 4329215 | Sodium hypochorite production and storage system System for the production and storage of sodium hypoclorite consisting of a source of soft or deionized water, a storage tank of saturated salt brine solution, a storage tank for soft or deionized water, an electrolytic chlorine generation unit wherein th... | 05/11/1982 |
| 4329216 | Electrolytic cell utilizing a transition metal-graphite intercalation compound cathode Disclosed is a method of electrolyzing an alkali metal chloride brine where the cathode is an intercalation compound of graphite and a transition metal. Also disclosed is a solid polymer electrolyte having as its cathode an intercalation compound of graph... | 05/11/1982 |
| 4329218 | Vertical cathode pocket assembly for membrane-type electrolytic cell A pocket shaped cathode for use in an electrolytic cell employing membrane separators between the catholyte and anolyte is described which by reason of its configuration reduces the power requirements of an electrolytic cell. More particularly there is de... | 05/11/1982 |
| 4328083 | Apparatus for mirror-finishing a cylindrical In a method of mirror-finishing a cylindrical workpiece, according to which, with an abrasive matter and an electrolyte disposed at and supplied to each of the gaps between a cylindrical workpiece connected to the anode of a power supply and working elect... | 05/04/1982 |
| 4328085 | Device for servicing electrolytic cells The invention relates to a device for point feeding an electrolytic cell, in particular a cell for producing aluminum. A point feeder unit comprising a raw materials feeding device and a crust breaking facility releasably mounted on a storage bunker is mo... | 05/04/1982 |
| 4326939 | Anode support system for a molten salt electrolytic cell The present invention relates to an anode support system for supplying electric current to a molten salt electrolytic cell wherein a pronounced reduction or suppression of the metal wave in the cell can be achieved without increasing the interpolar distan... | 04/27/1982 |
| 4326941 | Electrolytic cell Electrolytic cell for the production of alkali metal or alkaline earth metal chlorate from the corresponding chlorides, which cell is constructed from a plurality of cells (10) connected in series, whereby all electrodes (11, 19) except the terminal elect... | 04/27/1982 |
| 4325798 | Self-energizing water treatment accessory A self-energizing water treating assembly capable of being either removably disposed in a container through which a stream of water flows or in a tank containing a stationary body of water to render the water slightly alkaline, remove free dissolved oxyge... | 04/20/1982 |
| 4324634 | Remotely connecting and disconnecting cells from circuit A process for electrically by-passing one of a series of electrolytic cells without interrupting current flow through the remaining cells is disclosed. The process includes inserting two conductors between the cells, remotely moving the conductors into pr... | 04/13/1982 |
| 4323442 | Electrolysis installation for the production of gas An electrolysis installation such as an installation intended for the industrial production of hydrogen and oxygen by electrolysis of water under pressure having separate anolyte and catholyte flow circuits is provided with an electrolyzer (1) equipped wi... | 04/06/1982 |
| 4323444 | Filter press-type electrolytic cell In a filter press-type electrolytic cell comprising a group of electrode plates arranged in parallel in face-to-face positions through insulators, a pair of metallic press heads for tightening the group of the electrode plates from both ends of the group,... | 04/06/1982 |
| 4322282 | Tank for an electrolytic cell During its continuous use, the carbon lining on cells used in the electrolysis of aluminum oxide frequently exhibits cracks which are formed by stresses due to the thermal dilation of the contents of the cell. The present invention prevents the formation ... | 03/30/1982 |
| 4321115 | Method and device for providing a continuous measured supply of alumina to an electrolytic cell A device for feeding measured amounts of alumina to the break in the crust on an electrolytic cell is such that in a stationary channel there is a transporting facility which is connected to a power drive facility and to an alumina silo. The channel is a ... | 03/23/1982 |
| 4319969 | Aqueous alkali metal chloride electrolytic cell An electrolytic cell has a gas-liquid permeable porous electrode layer on a cation exchange membrane. The electrode layer is formed by printing a paste comprising an electrode powder on the surface of said cation exchange membrane by a screen printing pro... | 03/16/1982 |
| 4318788 | Chromate recovery process A process for recovering and recycling chromium from chromium-iron hydroxide sludge for use in cooling tower make up water and plating solution is disclosed. The process comprises separating chromium from the sludge by selectively oxidizing the trivalent ... | 03/09/1982 |
| 4317708 | Remote-controlled jack for intercell connectors A remote controlled intercell connector bar jack is disclosed. The jack can have a first contactor and a second contactor spaced apart by a piston and cylinder assembly. The assembly can be remotely expanded or contracted to move the contactors away from ... | 03/02/1982 |
