Bizarre Patents
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 6407371 | Heater A rod-shaped heater provided is composed of a carbon wire heating element 2 sealed in a small or large diameter quartz glass tube, a small diameter quartz glass tube portions 3a and 3b charged with compressed wire carbon members at opposite ends thereof; ... | 06/18/2002 |
| 4792777 | Variable water resistor for controlling the application of a therapeutic voltage to the human body An output controller for low-frequency treatment device for use in a bath, comprising a low-frequency oscillator; a variable water resistor having fixed terminals connected with the output terminal of the low-frequency oscillator; and an active electrode ... | 12/20/1988 |
| 4691187 | Variable linear resistor The invention comprises a variable linear resistor. It comprises a first plate having a recessed area cut into one face and a second plate parallel to and facing the face of the first plate with the recessed area. A length of elastic tubing is disposed in... | 09/01/1987 |
| 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 |
| 4438395 | Current transformer high voltage probe utilizing copper sulfate water resistor A current transformer and copper sulfate water resistor are combined to provide a probe capable of measuring very fast, high voltage pulses. The resistor is connected in series with the primary winding of the current transformer and consists of an elongat... | 03/20/1984 |
| 4339719 | Conductivity sensor for monitoring corrodents being deposited in a steam turbine A conductivity sensor for use in a steam turbine in operation to monitor corrodents being deposited therein. The sensor comprises a bottom substrate on which an electrode pair is located. The bottom substrate also includes a means for measuring the temper... | 07/13/1982 |
| 4206838 | Time-lapse indicator or the like A time-lapse indicator in which a receptacle contains a fluid material having numerous discrete particles dispersed in a liquid carrier, and a layer of absorbent material in close proximity to the receptacle, the receptacle and absorbent material being se... | 06/10/1980 |
| 4112409 | Electrolytic resistor The invention relates to an electrolytic resistor comprising a water-repellent insulating tube through which there flows an alkaline solution containing a suspension of zinc. The positive end of the resistor has a metallic grid suitable for trapping the z... | 09/05/1978 |
| 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 |
| 4028260 | Liquid for a feeler element for the electrical measurement of inclinations A liquid for a level or a feeler element for the electrical measurement of inclinations and for the determination of the vertical by measuring an electrical current or impedance between surface electrodes, which current or impedance changes as a function ... | 06/07/1977 |
