Did You Know...
...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!
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7163665 | Apparatus for decomposing gaseous aliphatic hydrocarbon halide compounds A method for decomposing a gaseous aliphatic hydrocarbon halide compound more simply is provided. The method includes the steps of mixing the gaseous aliphatic hydrocarbon halide compound and a chlorine gas-containing gas and emitting light to a mixture gas of the g... | 01/16/2007 |
| 7041203 | Apparatus and method for generating and using multi-direction DC and AC electrical currents Multi-directional currents are generated in a medium by cyclically reversing the direction of a conventional current applied to at least one of at least two electrodes so that an electromotive force (EMF) pulse travels from side of the electrode to the other, changi... | 05/09/2006 |
| 6843894 | Cathode current control system for a wafer electroplating apparatus A cathode current control system employing a current thief for use in electroplating a wafer is set forth. The current thief comprises a plurality of conductive segments disposed to substantially surround a peripheral region of the wafer. A first plurality of resist... | 01/18/2005 |
| 6797134 | Pulsed power supply for electrochemical cell A method and apparatus are provided for electrolyzing water for enhanced production of oxygen, hydrogen and heat by the steps of (i) providing an electrochemical cell comprising an isotopic hydrogen storage cathode, an electrically conductive anode and an ionically ... | 09/28/2004 |
| 6540888 | Mineral ionizing device A mineral ionizing device (10) consisting of a container (20) filled with water and containing a solid-mineral, cylindrical first electrode (50), a second electrode (58) coaxially located within the first electrode (50), a vibration unit (100) which produ... | 04/01/2003 |
| 6391167 | Water chlorinator A water chlorinator comprises a housing having in-line inlet and outlet openings and a removable cover. The cover supports two electrode terminals which are spaced apart and have corresponding rods extending therefrom through concentric anode and cathode ... | 05/21/2002 |
| 6197179 | Pulse-modulated DC electrochemical coating process and apparatus The present invention relates to a novel process for coating objects by means of direct current, in which process an adjustable DC voltage is pulse-modulated with an adjustable AC voltage. The process is useful for electrochemical coating of objects with ... | 03/06/2001 |
| 6139717 | Process for treating water and apparatus therefor The invention provides a process and apparatus for treating water, which can be stably operated with high efficiency over a long period of time. The apparatus has a grounding electrode and a pair of applying electrodes connected to a DC voltage source thr... | 10/31/2000 |
| 5985108 | Controlling apparatus for continuous electrolytic ion water producing apparatus A controlling apparatus which can control a continuous electrolytic ion water producing apparatus so that an excess current when the electrolyzing strength is not adjusted appropriately can be prevented with certainty and harmless electrolytic ion water c... | 11/16/1999 |
| 5605615 | Method and apparatus for plating metals A method and apparatus for plating metals which delivers a voltage pulse with the possibility of a widely varying current magnitude characteristic to a plating electrode and an object having a large electrical reactance in terms of a parallel resistance a... | 02/25/1997 |
| 5435894 | Process and apparatus for improving quality of water The invention provides a process and apparatus for improving the quality of water in an easy manner and with reasonable cost and high efficiency. The process provides a grounding electrode and a pair of applying electrodes in water to be treated. First an... | 07/25/1995 |
| 5302268 | Electrolytic apparatus for generating selected concentrations of gas in a flowing gas stream An apparatus for electrolytically generating small volumes of a selected gas such as hydrogen for introduction into a flowing gas stream is described. The gas stream flows through an electrolytic cell wherein the selected gas is generated at an electrode ... | 04/12/1994 |
| 5302267 | Gold plating kit apparatus A kit structure arranged to include a support container having various components for gold plating a workpiece, to include a fluid container or beaker, with a battery operative through a voltage regulator, wherein the voltage regulator is adjustable to pe... | 04/12/1994 |
| 5221442 | Method and apparatus for electrolytic treatment In a process of surface-roughening of an aluminum support for a printing plate using an AC electrolytic etching apparatus, changes of the current waveform, particularly changes of the time required for the current to reach its peak value due to variations... | 06/22/1993 |
| 5181154 | Circuit arrangement for optimal current generation in processes of electrochemically initiated plasma-chemical layer production A circuit arrangement for current supply in processes of electrochemically initiated plasma-chemical layer production. It is preferably applied in the plasma-chemical conversion of electrochemically pre-formed layers, e.g. on light metals. The output of t... | 01/19/1993 |
| 5013417 | Water purifier A water purifier including a floating body having two parallel disk shaped electrodes extending into the water. The polarity between the disks is alternated at predetermined intervals to avoid plating. The disks are preferably made of a copper/silver allo... | 05/07/1991 |
| 5007993 | Electrolytic processing apparatus and method with time multiplexed power supply Computerized apparatus for electrolytic processing of materials, includes an electrolytic processing bath, plural first electrodes, at least one second electrode, and a computerized power supply for supplying time multiplexed power to the electrodes. The ... | 04/16/1991 |
| 4986906 | Swimming pool water purification system A water purification system including a constant current electrical control system for providing a constant electric current between an anode and cathode in contaminated variable resistance water flowing between the anode and cathode, and a filtering syst... | 01/22/1991 |
| 4936979 | Swimming pool bacteria and algae control system and method An electrolytic ion generator (A) supplies reverse polarity current to an electrode unit (B) having metallic electrodes (20, 22). The electrodes are composed of lead, tin, and copper in the approximate proportion of 2, 10, and 88 percent. A timer (52) rev... | 06/26/1990 |
| 4778579 | Method and apparatus for operating a fuel cell in combination with an electrochemical cell to produce a chemical product A method and apparatus is disclosed for operating a fuel cell 14 which produces electrical energy in combination with an electrochemical cell 12 which uses electrical energy to produce a chemical product. A direct current converter 16 intermittently passe... | 10/18/1988 |
| 4769119 | Water treatment A water ionizing device which includes an electrode assembly of three electrodes which are preferably concentric. The center electrode is predominantly of silver and the other two electrodes are of copper. Ions are introduced from the silver electrode int... | 09/06/1988 |
| 4762598 | Electrolytic metal recovery Electrolytic recovery of silver metal is accomplished by application of a direct current with controlled ripple such that for any concentration of silver in the electrolyte, the instantaneous magnitude of the electrical potential across the electrodes is ... | 08/09/1988 |
| 4680114 | Water purification apparatus Apparatus which is adapted to purify water by the introduction of metal ions into the water. A chamber (16) is provided which houses two electrodes (E1 & E2) which are made of metals whose ions are known to have water-purification properties. W... | 07/14/1987 |
| 4668364 | Portable electroplating apparatus A portable electroplating apparatus (10) includes a case (12) having a plurality of containers (18, 20, 22, 24 and 26) in the case (12) for a plating solution and for preparing metal objects for electroplating. An electroplating circuit (64) is mounted in... | 05/26/1987 |
| 4545874 | Electro chemical machining In electrochemical machining, arcing across workpiece and forming electrode can result in both being scrapped. Efforts have been made to detect the electrical signals which develop on occurrence of the spark which normally terminates in an arc. Ordinary e... | 10/08/1985 |
| 4466864 | Methods of and apparatus for electroplating preselected surface regions of electrical articles An article, such as a semiconductor wafer (31), is selectively electrolytically plated to form metal deposits, such as contacts (26), adjacent to anodes of diode regions within such wafer by mounting the wafer in a plating chamber (36) opposite first and ... | 08/21/1984 |
| 4424105 | Gas generator with regulated current source An improved apparatus for gas generators producing oxygen and hydrogen or oxyhydrogen gas, the apparatus comprising a solid state current limiting circuit in combination with an assembly of electrolytic cells. The current-limiting circuit replaces the var... | 01/03/1984 |
| 4390763 | Electrochemical cell shunting switch assembly with matrix array of switch modules An electrical shunting switch assembly for use with a high continuous D.C. current electrochemical cell system, for electrically shunting or by-passing a cell of the system to permit maintenance or replacement, and then permitting stepped or gradual curre... | 06/28/1983 |
| 4288298 | Method and apparatus for electroplating or electroforming metal objects The invention relates primary to the field of dentistry, particularly to the formation of dental crowns, and provides an apparatus for use in electrodeposition of a metal onto a plurality of substrates, which comprises a retainer for an electrolyte, a fir... | 09/08/1981 |
| 4236992 | High voltage electrolytic cell A novel electrode, an apparatus and a method are set out for electrolyzing a chloride ion containing aqueous solution to produce chlorine and ozone. Through utilization of a solid state rectifier network, and without the use of a transformer, full line vo... | 12/02/1980 |
| 4193852 | Method and apparatus for electrical machining with a multi-guided travelling electrode A traveling wire electrical machining system makes use of a single-strand traveling wire which is guided in a plurality of passes across a workpiece to cut through the latter at a plurality of parallel locations. According to the invention, the machining ... | 03/18/1980 |
| 4169775 | Protection of the low hydrogen overvoltage catalytic coatings An electrolytic cell having auxiliary circuit means for applying a cathodic protection current to cathode and exposed metal parts to help prevent corrosion thereof during cell shut-down.... | 10/02/1979 |
| 4129493 | Swimming pool chlorinator system A new and improved swimming pool chlorinator which facilitates the provision of a higher strength hypochlorite solution over a wide concentration range than can be obtained from prior swimming pool chlorinators. The new and improved chlorinator utilizes a... | 12/12/1978 |
| 4069127 | Method and apparatus for recovery of metal from liquid A method and apparatus for removing a metal from a liquid solution is herein disclosed. The apparatus includes a receiving tank. A circulating tank is connected to the receiving tank. A circulating pump is connected to the circulating tank. A circulating ... | 01/17/1978 |
| 4035771 | Process for the remote transmission and indication of electrical measured values in electrolysis cells A process for the remote transmission and indication of measured values of a plurality of electrolysis cells, comprising sequentially interrogating the measured values in the electrolysis cells by means of an electronic pulse counter and an electronic che... | 07/12/1977 |
| 4026781 | Anodizing means and techniques An anodizing system uses both positive and negative current pulses. Such pulses are adjustable to achieve different adjusted values of positive and negative currents. These values are sensed and used to maintain automatically such values. The ratio of neg... | 05/31/1977 |
| 4024035 | Method for electric extraction of non-ferrous metals from their solutions Method of and system for electric extraction of non-ferrous metals from their solutions. The process is effected by applying a reversing electric current of different duration for the current for the electric extraction and the dissolution. The process is... | 05/17/1977 |
| 4008142 | Apparatus for operating the furnaces of an electrolysis plant A method and apparatus for operating an electrolysis plant including a plurality of furnaces in which the anode spacing of each furnace is controlled by means of a computer as a function of furnace resistance. A desired furnace resistance is varied as a f... | 02/15/1977 |
| 4003808 | Method and apparatus for regulating and controlling the anode current and for avoiding short-circuits between the electrodes of an electrolysis cell A method for regulating and controlling the anode current and for avoiding short-circuits between the adjustable anodes and the cathode of an electrolysis cell, wherein by means of an apparatus controlled by a field plate (magnetically controllable resist... | 01/18/1977 |
| 3954592 | Electrolysis apparatus A novel electrolytic cell performs an electrolysis process at improved efficiencies by supplying a pulsed DC current to the electrodes thereof. In preferred embodiment a generally cylindrical anode with a fluted outer surface is surrounded by a segmented ... | 05/04/1976 |
