"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 7150199 | Foil strain gage for automated handling and packaging An improved strain gage and an improved manufacturing method are disclosed. The strain gage includes a semi-rigid substrate having a thickness of 3 to 30 mils, a resistive strain sensitive foil bonded to the semi-rigid substrate for providing a resistance varying wi... | 12/19/2006 |
| 6525642 | Self-regenerating liquid metal current limiter A self-regenerating liquid metal current limiter including solid metal electrodes for connection to an electric circuit to be protected and several compression chambers which are partially filled with liquid metal. The compression chambers are located one... | 02/25/2003 |
| 5381088 | Change-over type of testing equipment for non-utility power generators or the like A change-over type of testing equipment for non-utility power generators, etc., includes a current-passing tank through which is charged with a resistance liquid, a main electrode disposed in the tank so as to receive power from the non-utility power gene... | 01/10/1995 |
| 5107209 | Power supply testing system for non-utility power generators A power supply testing system for a non-utility power generator, etc. a plurality of tank units to be powered, which are provided depending upon the number of phases of a multi-phase AC power source used with the non-utility power generator and each of wh... | 04/21/1992 |
| 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 |
| 4949064 | Non-linear resistor having a poly (amino acid) membrane A membrane of an ionic pendant-containing, water-insoluble copolymeric poly(amino acid) composed of a first moiety derived from a first amino acid which gives a water-soluble poly (amino acid) with ionic groups of carboxyl and/or amino groups as the penda... | 08/14/1990 |
| 4910457 | Water resistance load system The water resistance load system which comprises a water resistor, which includes a cylindrical base electrode with a bottom for storing a predetermined quantity of water while water is circulated through the cylindrical base electrode and a cylindrical m... | 03/20/1990 |
| 4853621 | Water resistance load system The water resistance load system comprises a water resistor, which includes a cylindrical base electrode with a bottom for storing a predetermined quantity of water while water is circulated through the cylindrical base electrode and a cylindrical main el... | 08/01/1989 |
| 4205222 | Electrode type water heating boiler A water heater for heating water in a casing by direct passage of current between a high tension electrode and a counter electrode both in contact with water in the casing. An electrically-insulating shield arranged between the electrode and the counter-e... | 05/27/1980 |
| 3946197 | Electrode water heating boiler A high-voltage hot water boiler includes a plurality of fluid heating units arranged parallel to each other. Each fluid heating unit includes a cylindrical housing which serves as a counter-electrode. Each housing is provided with a fluid inlet and a flui... | 03/23/1976 |
| 3935554 | Polyphase liquid rheostat In a polyphase liquid rheostat cells for separately accommodating adjustable electrodes with the cells filled with an electrolyte, covered at the top and open at one end face, are formed from electrically nonconducting plastic sheets which are welded toge... | 01/27/1976 |