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 |
| 4107620 | Regulated power supply with auto-transformer output and direct current feedback A bipolar regulated power supply employing an autotransformer to couple the output to the load is provided with a direct current feedback connected directly across the load. In this way losses in the transformer and leads connecting to the load are compen... | 08/15/1978 |
| 4097814 | Push-pull power amplifier A push-pull power amplifier for amplifying an input signal is described where anti-phase signals are generated from the input signal using a first hybrid junction for driving a pair of transistors and where anti-phase transistor output signals are combine... | 06/27/1978 |
| 4096443 | Balanced source follower amplifier A low distortion audio amplifier utilizes a pair of field effect transistors connected in a balanced source follower configuration. A tapped inductor connected between the sources of the field effect transistors provides inductive coupling between the sou... | 06/20/1978 |
| 4054843 | Amplifier with modulated power supply voltage The power supply voltage of an amplifier is modulated by a signal having a waveform that corresponds, at least in selective parts, to the waveform of the signal being amplified by the amplifier.... | 10/18/1977 |
| 3952256 | Multi-impedance output for transistor power amplifier An audio amplifier with a transistorized power output stage furnishes an amplified audio signal to an autotransformer. The autotransformer has a plurality of taps to permit the selection of any of a plurality of output impedance levels. The autotransforme... | 04/20/1976 |
