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 |
| 5980190 | Ready mix concrete conveying apparatus There is provided a ready mixed concrete conveying apparatus which carries up ready mixed concrete in the vertical direction, and continuously and quantitatively feeds out the concrete to a belt conveyor to continuously and quantitatively the concrete to ... | 11/09/1999 |
| 5807059 | Ready mixed concrete conveying apparatus This invention relates to a ready mixed concrete conveying apparatus which carries up ready mixed concrete in the vertical direction, and continuously and quantitatively feeds out the concrete to a belt conveyor to continuously and quantitatively the conc... | 09/15/1998 |
| 5259130 | Floating grab installation for the recovery of sand and gravel A floating grab installation for recovery of sand and gravel is disclosed. The installation includes a catamaran-type float or pontoon having a gripper and gripper support thereon. The gripper transfers the sand and gravel to an underwater tank having an ... | 11/09/1993 |
