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 |
| 4203403 | Ignition device for an internal combustion engine This invention relates to an ignition device for an internal combustion engine, in which a primary winding of an ignition coil and a breaker contact are connected in series and the breaker contact is so designed that wanted high voltages are produced only... | 05/20/1980 |
| 4157702 | Automatic ignition timing advancing device in ignition system A device for automatically advancing the ignition timing in an ignition system for an internal combustion engine is disclosed, in which the ignition timing is fixed constant in a low speed range of the rotation of the engine, advanced in an intermediate s... | 06/12/1979 |
