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 |
| 7438082 | Frost-resistant stand valve The invention concerns a valve arrangement for external operation including: a feed opening, a delivery opening, a connecting passage which connects the feed opening to the delivery opening, a first valve which is adapted to enable the fluid connection through the c... | 10/21/2008 |
| 5803110 | Fire hydrant assembly An improved fire hydrant having a lower portion and an upper portion. Under normal circumstances the upper portion is simulated fire hydrant made of resilient plastic and connected to the lower hydrant by a special fitting attached to the rim of the hydra... | 09/08/1998 |
| 4790342 | Fire hydrant valve actuator A fire hydrant comprising an upper portion and a lower portion. The lower portion contains a water inlet valve and an operating rod for selectively opening and closing the valve. The upper portion of the fire hydrant includes a bonnet and collar with aper... | 12/13/1988 |
| 4112966 | Ejector purge hydrant A hydrant for controlling the flow of water from an underground supply includes a casing connected at its lower end to the supply and its upper end to a nozzle for delivery of water from the casing. The flow of water from the supply to the casing is contr... | 09/12/1978 |
