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 |
| 6935435 | Positionable cultivating apparatus for raised bed crops A cultivating implement has transversely opposing sub-frames slidably mounted in the main frame of the implement to permit lateral positional adjustment of work implements carried by the sub-frames. The work implements are supported by a mounting apparatus providing... | 08/30/2005 |
| 6758284 | Structure for converting an integral implement to a drawn type Attachment structure for converting an integral implement to a pull-type implement includes wheel modules which can be placed at different locations along the frame to avoid interference with tool standards or other hardware. Each module includes both a forward gaug... | 07/06/2004 |
| 4354390 | Tractor pull sled A sled for use in tractor pulling contests, and the like, comprising a frame supported on front and rear wheels, a ballast mass supported by the frame, a pan adapted for sliding frictional engagement with the ground, and an articulated linkage mechanism f... | 10/19/1982 |
