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Patent No. 6368227

Method of swinging on a swing

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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Class 440/23 - Fluid pump


Subclass of Class 440 - Marine propulsion
Definition: Device wherein the motive force is produced by hydraulic
No. of applications: 3
Last issue date: 08/12/2010


Application No.Application TitleIssue Date
20100203778Remote Drive
A remote powered propulsive device having a rudder which carries a propeller or oscillating fins which are powered by pedals alone or with hydraulic assist or by an electric motor....
08/12/2010
20100178816Jet propelled surfboard
A jet flow propelled surfboard assembly comprises a longitudinally forwardly elongated structure including flotation means to support a surfer and other means which includes a positive displacement pump which spring-loaded piston can be manually operated by the feet of ...
07/15/2010
20070004293Reaction accelerated fluid drive
This is a double finn system one fin in front of the other when the front fin goes down the back fin goes up and just the oppisite happens on the other side, due to the shape of the finns all of the water is moved toward the rear of the boat. The leverage system which i...
01/04/2007
 
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