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| Number | Title | Issue Date |
| 5250924 | Power supply testing system for non-utility power generators and so on A power supply testing system for non-utility power generators, etc. includes a test tank filled with a resistive liquid; a main electrode housed within the test tank to receive power from a non-utility power generator to be tested; a movable insulator me... | 10/05/1993 |
| 5142267 | Level sensor which has high signal gain and can be used for fluids particularly chemically corrosive fluids A PTC-resistor which is a temperature dependent electrical thermistor of semiconductor ferro-electric ceramic which is provided with power leads and serves as a sensor element is directly fused into glass. The power leads are welded to metal coatings form... | 08/25/1992 |
| 5097248 | Electrode for level detection An electrode for level detection includes a detection electrode including conductor portions and resistor portions arranged and formed one after the other in a level change direction. An insulating coating layer is formed on either each conductor portion ... | 03/17/1992 |
| 4670735 | Liquid rheostat with circulating electrolyte A rheostat of the kind that comprises a tank containing electrolyte and at least two electrodes, one electrode being connectable to an electric power supply and the other electrode being connectable to apparatus to be fed by the power supply. The electrod... | 06/02/1987 |
| 4510483 | Liquid rheostat for starting an electric motor with improved sill structure A variable level liquid rheostat having a tubular overflow member between a starting chamber and a tank for controlling the level of electrolyte in the starting chamber. The overflow member has a closed upper end inside the starting chamber and lateral di... | 04/09/1985 |
| 4430555 | Electrode steam boiler and method of operation thereof An electrode boiler includes a boiler shell having at least two spaced electrodes arranged about a vertical axis and positioned to be at least partially immersed in a water zone in the shell; the water zone including a relatively cold water zone below the... | 02/07/1984 |
| 4423310 | Electrical steam generator having adjustable electrodes for an air humidifier The steam generator includes a cylindrical tank, a plurality of circumferentially-spaced electrical terminals extending through the tank top wall. To afford the capability of adjusting the horizontal distance between adjacent electrodes while maintaining ... | 12/27/1983 |
| 4325049 | Electrode for a liquid rheostat, and a liquid rheostat including such an electrode An electrode for a liquid rheostat comprises a plurality of globally annular elements arranged successively and electrically connected together two at a time. The annular elements progressively decrease in size. The electrode can be formed from a continuo... | 04/13/1982 |
| 4314139 | Electric boiler having means for controlling steam generation An electric boiler includes a first electrode disposed within a chamber and comprising an upwardly oriented water nozzle surrounded by a convolute electrode member. A second electrode is disposed within the chamber vertically above the first electrode and... | 02/02/1982 |
| 4221955 | Demand regulated electrode-type steam generator An electrode-type steam generator includes a pair of spaced electrodes extending into a pressure vessel having a feed water inlet and a steam outlet. A rotary stirring device, cycled on and off by a pressure switch in the steam outlet, is provided in the ... | 09/09/1980 |
| 4107641 | Liquid rheostat A liquid rheostat includes a conductive element which surrounds multiple electrodes. The element provides a multiplicity of current paths between the electrodes at a given depth of electrolyte solution thus decreasing current concentration of the electrod... | 08/15/1978 |
| 4052587 | HTW heating system having an electrode steam boiler as the direct source of HTW A high temperature water (HTW) space heating system in which the direct source of HTW is an automatic electrode steam boiler having electrodes, adapted to be connected in an electrical distribution system. The electrodes are positioned in corresponding st... | 10/04/1977 |
| 4051345 | Electrode tip for high voltage electrodes of the type utilized in high voltage boilers A jet-protected electrode tip for high voltage electrode boilers from which boiler water is taken, mixed with the boiler feedwater or other water of lower temperature taken from an outside source and pumped through circuits terminated by a nozzle located ... | 09/27/1977 |
| 3944785 | Electrode boiler with automatic control An electrode boiler includes a plurality of veritcal electrodes arranged in a container having an open steam outlet at its top whereby the boiler operates at substantially atmospheric pressure. The boiler is provided with electrically controlled feed and ... | 03/16/1976 |
| 3937920 | Method of operating an electrode-type water-vapor generator An improved method of operating a water-vapor generator having a vaporization vessel containing water and provided with heating electrodes therein which are connected to an electric current supply and between which flows an electric current whose magnitud... | 02/10/1976 |
